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authorschnetter <schnetter@e296648e-0e4f-0410-bd07-d597d9acff87>2007-04-21 02:53:19 +0000
committerschnetter <schnetter@e296648e-0e4f-0410-bd07-d597d9acff87>2007-04-21 02:53:19 +0000
commita29e3c43c4cd68052703cf6f37abdf4c6a5f921a (patch)
tree5754134572da8f6191db4389b396604be1ac0018
parent0ab811fd67780bf002aca301e64dc34a9d0b65e0 (diff)
Add the capability to rotate initial data, similar to the existing
boost transformation. Add spherical Kerr-Schild initial data, i.e., Kerr-Schild data in which the horizon is a coordinate sphere. Add the capability to smooth Kerr-Schild data with a parabolic term. Re-indent param.ccl consistently. git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/Exact/trunk@246 e296648e-0e4f-0410-bd07-d597d9acff87
-rw-r--r--param.ccl157
-rw-r--r--schedule.ccl9
-rw-r--r--src/boost.F77577
-rw-r--r--src/decode_pars.F772
-rw-r--r--src/gauge.F7722
-rw-r--r--src/include/Scalar_CalcTmunu.inc2
-rw-r--r--src/include/param_defs.inc21
-rw-r--r--src/metric.F779
-rw-r--r--src/metrics/Kerr_KerrSchild.F7715
-rw-r--r--src/metrics/Kerr_KerrSchild_spherical.F77182
-rw-r--r--src/metrics/make.code.defn1
-rw-r--r--test/KS-tilted.par96
-rw-r--r--test/KS-tilted/BH_diagnostics.ah1.gp42
-rw-r--r--test/KS-tilted/alp_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/alp_average.xg6
-rw-r--r--test/KS-tilted/alp_count.xg6
-rw-r--r--test/KS-tilted/alp_maximum.xg6
-rw-r--r--test/KS-tilted/alp_minimum.xg6
-rw-r--r--test/KS-tilted/alp_norm1.xg6
-rw-r--r--test/KS-tilted/alp_norm2.xg6
-rw-r--r--test/KS-tilted/alp_norm_inf.xg6
-rw-r--r--test/KS-tilted/alp_x_[24][24].xg158
-rw-r--r--test/KS-tilted/alp_y_[24][24].xg158
-rw-r--r--test/KS-tilted/alp_z_[24][24].xg158
-rw-r--r--test/KS-tilted/betax_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/betax_average.xg6
-rw-r--r--test/KS-tilted/betax_count.xg6
-rw-r--r--test/KS-tilted/betax_maximum.xg6
-rw-r--r--test/KS-tilted/betax_minimum.xg6
-rw-r--r--test/KS-tilted/betax_norm1.xg6
-rw-r--r--test/KS-tilted/betax_norm2.xg6
-rw-r--r--test/KS-tilted/betax_norm_inf.xg6
-rw-r--r--test/KS-tilted/betax_x_[24][24].xg158
-rw-r--r--test/KS-tilted/betax_y_[24][24].xg158
-rw-r--r--test/KS-tilted/betax_z_[24][24].xg158
-rw-r--r--test/KS-tilted/betay_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/betay_average.xg6
-rw-r--r--test/KS-tilted/betay_count.xg6
-rw-r--r--test/KS-tilted/betay_maximum.xg6
-rw-r--r--test/KS-tilted/betay_minimum.xg6
-rw-r--r--test/KS-tilted/betay_norm1.xg6
-rw-r--r--test/KS-tilted/betay_norm2.xg6
-rw-r--r--test/KS-tilted/betay_norm_inf.xg6
-rw-r--r--test/KS-tilted/betay_x_[24][24].xg158
-rw-r--r--test/KS-tilted/betay_y_[24][24].xg158
-rw-r--r--test/KS-tilted/betay_z_[24][24].xg158
-rw-r--r--test/KS-tilted/betaz_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/betaz_average.xg6
-rw-r--r--test/KS-tilted/betaz_count.xg6
-rw-r--r--test/KS-tilted/betaz_maximum.xg6
-rw-r--r--test/KS-tilted/betaz_minimum.xg6
-rw-r--r--test/KS-tilted/betaz_norm1.xg6
-rw-r--r--test/KS-tilted/betaz_norm2.xg6
-rw-r--r--test/KS-tilted/betaz_norm_inf.xg6
-rw-r--r--test/KS-tilted/betaz_x_[24][24].xg158
-rw-r--r--test/KS-tilted/betaz_y_[24][24].xg158
-rw-r--r--test/KS-tilted/betaz_z_[24][24].xg158
-rw-r--r--test/KS-tilted/emask_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/emask_average.xg6
-rw-r--r--test/KS-tilted/emask_count.xg6
-rw-r--r--test/KS-tilted/emask_maximum.xg6
-rw-r--r--test/KS-tilted/emask_minimum.xg6
-rw-r--r--test/KS-tilted/emask_norm1.xg6
-rw-r--r--test/KS-tilted/emask_norm2.xg6
-rw-r--r--test/KS-tilted/emask_norm_inf.xg6
-rw-r--r--test/KS-tilted/emask_x_[24][24].xg158
-rw-r--r--test/KS-tilted/emask_y_[24][24].xg158
-rw-r--r--test/KS-tilted/emask_z_[24][24].xg158
-rw-r--r--test/KS-tilted/gxx_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/gxx_average.xg6
-rw-r--r--test/KS-tilted/gxx_count.xg6
-rw-r--r--test/KS-tilted/gxx_maximum.xg6
-rw-r--r--test/KS-tilted/gxx_minimum.xg6
-rw-r--r--test/KS-tilted/gxx_norm1.xg6
-rw-r--r--test/KS-tilted/gxx_norm2.xg6
-rw-r--r--test/KS-tilted/gxx_norm_inf.xg6
-rw-r--r--test/KS-tilted/gxx_x_[24][24].xg158
-rw-r--r--test/KS-tilted/gxx_y_[24][24].xg158
-rw-r--r--test/KS-tilted/gxx_z_[24][24].xg158
-rw-r--r--test/KS-tilted/gxy_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/gxy_average.xg6
-rw-r--r--test/KS-tilted/gxy_count.xg6
-rw-r--r--test/KS-tilted/gxy_maximum.xg6
-rw-r--r--test/KS-tilted/gxy_minimum.xg6
-rw-r--r--test/KS-tilted/gxy_norm1.xg6
-rw-r--r--test/KS-tilted/gxy_norm2.xg6
-rw-r--r--test/KS-tilted/gxy_norm_inf.xg6
-rw-r--r--test/KS-tilted/gxy_x_[24][24].xg158
-rw-r--r--test/KS-tilted/gxy_y_[24][24].xg158
-rw-r--r--test/KS-tilted/gxy_z_[24][24].xg158
-rw-r--r--test/KS-tilted/gxz_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/gxz_average.xg6
-rw-r--r--test/KS-tilted/gxz_count.xg6
-rw-r--r--test/KS-tilted/gxz_maximum.xg6
-rw-r--r--test/KS-tilted/gxz_minimum.xg6
-rw-r--r--test/KS-tilted/gxz_norm1.xg6
-rw-r--r--test/KS-tilted/gxz_norm2.xg6
-rw-r--r--test/KS-tilted/gxz_norm_inf.xg6
-rw-r--r--test/KS-tilted/gxz_x_[24][24].xg158
-rw-r--r--test/KS-tilted/gxz_y_[24][24].xg158
-rw-r--r--test/KS-tilted/gxz_z_[24][24].xg158
-rw-r--r--test/KS-tilted/gyy_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/gyy_average.xg6
-rw-r--r--test/KS-tilted/gyy_count.xg6
-rw-r--r--test/KS-tilted/gyy_maximum.xg6
-rw-r--r--test/KS-tilted/gyy_minimum.xg6
-rw-r--r--test/KS-tilted/gyy_norm1.xg6
-rw-r--r--test/KS-tilted/gyy_norm2.xg6
-rw-r--r--test/KS-tilted/gyy_norm_inf.xg6
-rw-r--r--test/KS-tilted/gyy_x_[24][24].xg158
-rw-r--r--test/KS-tilted/gyy_y_[24][24].xg158
-rw-r--r--test/KS-tilted/gyy_z_[24][24].xg158
-rw-r--r--test/KS-tilted/gyz_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/gyz_average.xg6
-rw-r--r--test/KS-tilted/gyz_count.xg6
-rw-r--r--test/KS-tilted/gyz_maximum.xg6
-rw-r--r--test/KS-tilted/gyz_minimum.xg6
-rw-r--r--test/KS-tilted/gyz_norm1.xg6
-rw-r--r--test/KS-tilted/gyz_norm2.xg6
-rw-r--r--test/KS-tilted/gyz_norm_inf.xg6
-rw-r--r--test/KS-tilted/gyz_x_[24][24].xg158
-rw-r--r--test/KS-tilted/gyz_y_[24][24].xg158
-rw-r--r--test/KS-tilted/gyz_z_[24][24].xg158
-rw-r--r--test/KS-tilted/gzz_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/gzz_average.xg6
-rw-r--r--test/KS-tilted/gzz_count.xg6
-rw-r--r--test/KS-tilted/gzz_maximum.xg6
-rw-r--r--test/KS-tilted/gzz_minimum.xg6
-rw-r--r--test/KS-tilted/gzz_norm1.xg6
-rw-r--r--test/KS-tilted/gzz_norm2.xg6
-rw-r--r--test/KS-tilted/gzz_norm_inf.xg6
-rw-r--r--test/KS-tilted/gzz_x_[24][24].xg158
-rw-r--r--test/KS-tilted/gzz_y_[24][24].xg158
-rw-r--r--test/KS-tilted/gzz_z_[24][24].xg158
-rw-r--r--test/KS-tilted/h.t0.ah1.gp2337
-rw-r--r--test/KS-tilted/h.t1.ah1.gp2337
-rw-r--r--test/KS-tilted/h.t2.ah1.gp2337
-rw-r--r--test/KS-tilted/ham_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/ham_average.xg6
-rw-r--r--test/KS-tilted/ham_count.xg6
-rw-r--r--test/KS-tilted/ham_maximum.xg6
-rw-r--r--test/KS-tilted/ham_minimum.xg6
-rw-r--r--test/KS-tilted/ham_norm1.xg6
-rw-r--r--test/KS-tilted/ham_norm2.xg6
-rw-r--r--test/KS-tilted/ham_norm_inf.xg6
-rw-r--r--test/KS-tilted/ham_x_[24][24].xg158
-rw-r--r--test/KS-tilted/ham_y_[24][24].xg158
-rw-r--r--test/KS-tilted/ham_z_[24][24].xg158
-rw-r--r--test/KS-tilted/kxx_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/kxx_average.xg6
-rw-r--r--test/KS-tilted/kxx_count.xg6
-rw-r--r--test/KS-tilted/kxx_maximum.xg6
-rw-r--r--test/KS-tilted/kxx_minimum.xg6
-rw-r--r--test/KS-tilted/kxx_norm1.xg6
-rw-r--r--test/KS-tilted/kxx_norm2.xg6
-rw-r--r--test/KS-tilted/kxx_norm_inf.xg6
-rw-r--r--test/KS-tilted/kxx_x_[24][24].xg158
-rw-r--r--test/KS-tilted/kxx_y_[24][24].xg158
-rw-r--r--test/KS-tilted/kxx_z_[24][24].xg158
-rw-r--r--test/KS-tilted/kxy_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/kxy_average.xg6
-rw-r--r--test/KS-tilted/kxy_count.xg6
-rw-r--r--test/KS-tilted/kxy_maximum.xg6
-rw-r--r--test/KS-tilted/kxy_minimum.xg6
-rw-r--r--test/KS-tilted/kxy_norm1.xg6
-rw-r--r--test/KS-tilted/kxy_norm2.xg6
-rw-r--r--test/KS-tilted/kxy_norm_inf.xg6
-rw-r--r--test/KS-tilted/kxy_x_[24][24].xg158
-rw-r--r--test/KS-tilted/kxy_y_[24][24].xg158
-rw-r--r--test/KS-tilted/kxy_z_[24][24].xg158
-rw-r--r--test/KS-tilted/kxz_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/kxz_average.xg6
-rw-r--r--test/KS-tilted/kxz_count.xg6
-rw-r--r--test/KS-tilted/kxz_maximum.xg6
-rw-r--r--test/KS-tilted/kxz_minimum.xg6
-rw-r--r--test/KS-tilted/kxz_norm1.xg6
-rw-r--r--test/KS-tilted/kxz_norm2.xg6
-rw-r--r--test/KS-tilted/kxz_norm_inf.xg6
-rw-r--r--test/KS-tilted/kxz_x_[24][24].xg158
-rw-r--r--test/KS-tilted/kxz_y_[24][24].xg158
-rw-r--r--test/KS-tilted/kxz_z_[24][24].xg158
-rw-r--r--test/KS-tilted/kyy_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/kyy_average.xg6
-rw-r--r--test/KS-tilted/kyy_count.xg6
-rw-r--r--test/KS-tilted/kyy_maximum.xg6
-rw-r--r--test/KS-tilted/kyy_minimum.xg6
-rw-r--r--test/KS-tilted/kyy_norm1.xg6
-rw-r--r--test/KS-tilted/kyy_norm2.xg6
-rw-r--r--test/KS-tilted/kyy_norm_inf.xg6
-rw-r--r--test/KS-tilted/kyy_x_[24][24].xg158
-rw-r--r--test/KS-tilted/kyy_y_[24][24].xg158
-rw-r--r--test/KS-tilted/kyy_z_[24][24].xg158
-rw-r--r--test/KS-tilted/kyz_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/kyz_average.xg6
-rw-r--r--test/KS-tilted/kyz_count.xg6
-rw-r--r--test/KS-tilted/kyz_maximum.xg6
-rw-r--r--test/KS-tilted/kyz_minimum.xg6
-rw-r--r--test/KS-tilted/kyz_norm1.xg6
-rw-r--r--test/KS-tilted/kyz_norm2.xg6
-rw-r--r--test/KS-tilted/kyz_norm_inf.xg6
-rw-r--r--test/KS-tilted/kyz_x_[24][24].xg158
-rw-r--r--test/KS-tilted/kyz_y_[24][24].xg158
-rw-r--r--test/KS-tilted/kyz_z_[24][24].xg158
-rw-r--r--test/KS-tilted/kzz_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/kzz_average.xg6
-rw-r--r--test/KS-tilted/kzz_count.xg6
-rw-r--r--test/KS-tilted/kzz_maximum.xg6
-rw-r--r--test/KS-tilted/kzz_minimum.xg6
-rw-r--r--test/KS-tilted/kzz_norm1.xg6
-rw-r--r--test/KS-tilted/kzz_norm2.xg6
-rw-r--r--test/KS-tilted/kzz_norm_inf.xg6
-rw-r--r--test/KS-tilted/kzz_x_[24][24].xg158
-rw-r--r--test/KS-tilted/kzz_y_[24][24].xg158
-rw-r--r--test/KS-tilted/kzz_z_[24][24].xg158
-rw-r--r--test/KS-tilted/momx_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/momx_average.xg6
-rw-r--r--test/KS-tilted/momx_count.xg6
-rw-r--r--test/KS-tilted/momx_maximum.xg6
-rw-r--r--test/KS-tilted/momx_minimum.xg6
-rw-r--r--test/KS-tilted/momx_norm1.xg6
-rw-r--r--test/KS-tilted/momx_norm2.xg6
-rw-r--r--test/KS-tilted/momx_norm_inf.xg6
-rw-r--r--test/KS-tilted/momx_x_[24][24].xg158
-rw-r--r--test/KS-tilted/momx_y_[24][24].xg158
-rw-r--r--test/KS-tilted/momx_z_[24][24].xg158
-rw-r--r--test/KS-tilted/momy_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/momy_average.xg6
-rw-r--r--test/KS-tilted/momy_count.xg6
-rw-r--r--test/KS-tilted/momy_maximum.xg6
-rw-r--r--test/KS-tilted/momy_minimum.xg6
-rw-r--r--test/KS-tilted/momy_norm1.xg6
-rw-r--r--test/KS-tilted/momy_norm2.xg6
-rw-r--r--test/KS-tilted/momy_norm_inf.xg6
-rw-r--r--test/KS-tilted/momy_x_[24][24].xg158
-rw-r--r--test/KS-tilted/momy_y_[24][24].xg158
-rw-r--r--test/KS-tilted/momy_z_[24][24].xg158
-rw-r--r--test/KS-tilted/momz_3D_diagonal.xg158
-rw-r--r--test/KS-tilted/momz_average.xg6
-rw-r--r--test/KS-tilted/momz_count.xg6
-rw-r--r--test/KS-tilted/momz_maximum.xg6
-rw-r--r--test/KS-tilted/momz_minimum.xg6
-rw-r--r--test/KS-tilted/momz_norm1.xg6
-rw-r--r--test/KS-tilted/momz_norm2.xg6
-rw-r--r--test/KS-tilted/momz_norm_inf.xg6
-rw-r--r--test/KS-tilted/momz_x_[24][24].xg158
-rw-r--r--test/KS-tilted/momz_y_[24][24].xg158
-rw-r--r--test/KS-tilted/momz_z_[24][24].xg158
247 files changed, 22001 insertions, 299 deletions
diff --git a/param.ccl b/param.ccl
index 7d2136a..90772f6 100644
--- a/param.ccl
+++ b/param.ccl
@@ -11,8 +11,8 @@ USES KEYWORD metric_type
EXTENDS KEYWORD initial_data
{
- "exact" :: "Initial data from exact solution"
- "slice" :: "Initial data from exact solution on arbitrary slice"
+ "exact" :: "Initial data from exact solution"
+ "slice" :: "Initial data from exact solution on arbitrary slice"
}
EXTENDS KEYWORD lapse_evolution_method
@@ -26,11 +26,11 @@ EXTENDS KEYWORD shift_evolution_method
EXTENDS KEYWORD initial_lapse
{
- "exact" :: "Initial lapse from exact solution"
+ "exact" :: "Initial lapse from exact solution"
}
EXTENDS KEYWORD initial_shift
{
- "exact" :: "Initial shift from exact solution"
+ "exact" :: "Initial shift from exact solution"
}
EXTENDS KEYWORD evolution_method
@@ -79,18 +79,18 @@ private:
REAL slice_Gauss_ampl "Amplitude of Gauss slice in exact"
{
-0.0: :: "Positive please"
+0.0: :: "Positive please"
} 0.0
REAL slice_Gauss_width "Width of Gauss slice in exact"
{
-0.0: :: "Positive please"
+0.0: :: "Positive please"
} 1.0
# this parameter is used directly in our schedule.ccl file
KEYWORD overwrite_boundary "Overwrite g and K on the boundary"
{
- "no" :: "Do nothing"
+ "no" :: "Do nothing"
"exact" :: "Use boundary data from an exact solution on a trivial slice"
} "no"
@@ -133,6 +133,25 @@ REAL shift_add_z "z component of added shift"
} 0.0
################################################################################
+##### parameters for rotating any model ########################################
+################################################################################
+
+private:
+
+REAL rotation_euler_phi "Euler angle phi (first rotation, about z axis) (irrelevant for axisymmetric models)"
+{
+*:* :: "any real number"
+} 0.0
+REAL rotation_euler_theta "Euler angle theta (second rotation, about x axis)"
+{
+*:* :: "any real number"
+} 0.0
+REAL rotation_euler_psi "Euler angle psi (third rotation, about z axis)"
+{
+*:* :: "any real number"
+} 0.0
+
+################################################################################
##### general comments #########################################################
################################################################################
@@ -209,38 +228,39 @@ KEYWORD exact_model "The exact solution/coordinates used in thorn exact"
#
# black hole spacetimes
#
-"Schwarzschild/EF" :: "Schwarzschild spacetime in Eddington-Finkelstein coordinates"
-"Schwarzschild/PG" :: "Schwarzschild spacetime in Painleve-Gullstrand coordinates"
-"Schwarzschild/BL" :: "Schwarzschild spacetime in Brill-Lindquist coordinates"
-"Schwarzschild/Novikov":: "Schwarzschild spacetime in Novikov coordinates"
-"Schwarzschild-Lemaitre":: "Schwarzschild metric in Schwarzschild coordinates, with cosmological constant"
-"Kerr/Boyer-Lindquist" :: "Kerr spacetime in Boyer-Lindquist coordinates"
-"Kerr/Kerr-Schild" :: "Kerr spacetime in Kerr-Schild coordinates"
-"multi-BH" :: "Majumdar-Papapetrou or Kastor-Traschen maximally charged multi BH solutions"
-"Alvi" :: "Alvi post-Newtonian 2BH spacetime (not fully implemented yet)"
-"Thorne-fakebinary" :: "Thorne's fake-binary spacetime (non-Einstein)"
+"Schwarzschild/EF" :: "Schwarzschild spacetime in Eddington-Finkelstein coordinates"
+"Schwarzschild/PG" :: "Schwarzschild spacetime in Painleve-Gullstrand coordinates"
+"Schwarzschild/BL" :: "Schwarzschild spacetime in Brill-Lindquist coordinates"
+"Schwarzschild/Novikov" :: "Schwarzschild spacetime in Novikov coordinates"
+"Schwarzschild-Lemaitre" :: "Schwarzschild metric in Schwarzschild coordinates, with cosmological constant"
+"Kerr/Boyer-Lindquist" :: "Kerr spacetime in Boyer-Lindquist coordinates"
+"Kerr/Kerr-Schild" :: "Kerr spacetime in Kerr-Schild coordinates"
+"Kerr/Kerr-Schild/spherical" :: "Kerr spacetime in distorted Kerr-Schild coordinates such that the horizon is a coordinate sphere"
+"multi-BH" :: "Majumdar-Papapetrou or Kastor-Traschen maximally charged multi BH solutions"
+"Alvi" :: "Alvi post-Newtonian 2BH spacetime (not fully implemented yet)"
+"Thorne-fakebinary" :: "Thorne's fake-binary spacetime (non-Einstein)"
#
# cosmological spacetimes
#
-"Lemaitre" :: "Lemaitre-type spacetime"
-##"Robertson-Walker" :: "Robertson-Walker spacetime"
-"de Sitter" :: "de Sitter spacetime (R-W cosmology, near t=0, p=0)"
-"de Sitter+Lambda" :: "de Sitter spacetime with cosmological constant"
-"anti-de Sitter+Lambda":: "anti-de Sitter spacetime with cosmological constant"
-"Bianchi I" :: "approximate Bianchi type I spacetime"
-"Goedel" :: "Goedel spacetime"
-"Bertotti" :: "Bertotti spacetime"
-"Kasner-like" :: "Kasner-like spacetime"
-"Kasner-axisymmetric" :: "axisymmetric Kasner spacetime"
-"Kasner-generalized" :: "generalized Kasner spacetime"
-"Gowdy-wave" :: "Gowdy spacetime with polarized wave on a torus"
-"Milne" :: "Milne spacetime for pre-big-bang cosmology"
+"Lemaitre" :: "Lemaitre-type spacetime"
+##"Robertson-Walker" :: "Robertson-Walker spacetime"
+"de Sitter" :: "de Sitter spacetime (R-W cosmology, near t=0, p=0)"
+"de Sitter+Lambda" :: "de Sitter spacetime with cosmological constant"
+"anti-de Sitter+Lambda" :: "anti-de Sitter spacetime with cosmological constant"
+"Bianchi I" :: "approximate Bianchi type I spacetime"
+"Goedel" :: "Goedel spacetime"
+"Bertotti" :: "Bertotti spacetime"
+"Kasner-like" :: "Kasner-like spacetime"
+"Kasner-axisymmetric" :: "axisymmetric Kasner spacetime"
+"Kasner-generalized" :: "generalized Kasner spacetime"
+"Gowdy-wave" :: "Gowdy spacetime with polarized wave on a torus"
+"Milne" :: "Milne spacetime for pre-big-bang cosmology"
#
# miscelaneous spacetimes
#
-"boost-rotation symmetric":: "boost-rotation symmetric spacetime"
-"bowl" :: "bowl (bag-of-gold) spacetime (non-Einstein)"
-"constant density star":: "constant density (Schwarzschild) star"
+"boost-rotation symmetric" :: "boost-rotation symmetric spacetime"
+"bowl" :: "bowl (bag-of-gold) spacetime (non-Einstein)"
+"constant density star" :: "constant density (Schwarzschild) star"
} "Minkowski"
################################################################################
@@ -368,7 +388,7 @@ REAL Schwarzschild_EF__mass "Schwarzschild/EF: BH mass"
REAL Schwarzschild_EF__epsilon "Schwarzschild/EF: numerical fudge"
{
-0.0:* :: "any real number >= 0.0"
+0.0:* :: "any real number >= 0.0"
} 1.e-16
################################################################################
@@ -379,12 +399,12 @@ REAL Schwarzschild_EF__epsilon "Schwarzschild/EF: numerical fudge"
REAL Schwarzschild_PG__mass "Schwarzschild/PG: BH mass"
{
-(0.0:* :: "any real number > 0.0"
+(0.0:* :: "any real number > 0.0"
} 1.0
REAL Schwarzschild_PG__epsilon "Schwarzschild/PG: numerical fudge"
{
-0.0:* :: "any real number >= 0.0"
+0.0:* :: "any real number >= 0.0"
} 1.e-16
################################################################################
@@ -395,12 +415,12 @@ REAL Schwarzschild_PG__epsilon "Schwarzschild/PG: numerical fudge"
REAL Schwarzschild_BL__mass "Schwarzschild/BL: BH mass"
{
-(0.0:* :: "any real number > 0.0"
+(0.0:* :: "any real number > 0.0"
} 1.0
REAL Schwarzschild_BL__epsilon "Schwarzschild/BL: numerical fudge"
{
-0.0:* :: "any real number >= 0.0"
+0.0:* :: "any real number >= 0.0"
} 1.e-16
################################################################################
@@ -409,12 +429,12 @@ REAL Schwarzschild_BL__epsilon "Schwarzschild/BL: numerical fudge"
REAL Schwarzschild_Novikov__mass "Schwarzschild/Novikov: BH mass"
{
-(0.0:* :: "any real number > 0.0"
+(0.0:* :: "any real number > 0.0"
} 1.0
REAL Schwarzschild_Novikov__epsilon "Schwarzschild/Novikov: numerical fudge"
{
-0.0:* :: "any real number >= 0.0"
+0.0:* :: "any real number >= 0.0"
} 1.e-16
################################################################################
@@ -444,7 +464,7 @@ REAL Kerr_BoyerLindquist__spin \
REAL Kerr_BoyerLindquist__mass "Kerr/Boyer-Lindquist: BH mass"
{
-(0.0:* :: "any real number > 0"
+(0.0:* :: "any real number > 0"
} 1.0
################################################################################
@@ -454,20 +474,29 @@ REAL Kerr_BoyerLindquist__mass "Kerr/Boyer-Lindquist: BH mass"
#
# the black hole is boosted in the z direction with this velocity,
-# i.e. the black hole is located at x=0, y=0, and z=vt
+# i.e., the black hole is located at x=0, y=0, and z=vt
REAL Kerr_KerrSchild__boost_v "Kerr/Kerr-Schild: boost velocity of black hole in z direction"
{
-(-1:1) :: "any real number with absolute value < 1"
+(-1:1) :: "any real number with absolute value < 1"
} 0.0
REAL Kerr_KerrSchild__epsilon "Kerr/Kerr-Schild: numerical fudge"
{
-0.0:* :: "any real number >= 0.0"
+0.0:* :: "any real number >= 0.0"
} 1.e-16
+INT Kerr_KerrSchild__power "Kerr/Kerr-Schild: power (exponent) of numerical fudge"
+{
+1:* :: ""
+} 4
+
+BOOLEAN Kerr_KerrSchild__parabolic "Kerr/Kerr-Schild: use a parabolic singularity-avoiding term"
+{
+} "no"
+
REAL Kerr_KerrSchild__mass "Kerr/Kerr-Schild: BH mass"
{
-(0.0:* :: "any real number > 0"
+(0.0:* :: "any real number > 0"
} 1.0
REAL Kerr_KerrSchild__spin \
@@ -629,7 +658,7 @@ BOOLEAN Thorne_fakebinary__retarded "Thorne-fakebinary: use retarded time?"
# FIXME: can this really be exactly 0.0?
REAL Thorne_fakebinary__epsilon "Thorne-fakebinary: numerical fudge"
{
-0.0:* :: "any real number >= 0.0"
+0.0:* :: "any real number >= 0.0"
} 1.e-16
REAL Thorne_fakebinary__separation "Thorne-fakebinary: initial separation"
@@ -719,7 +748,7 @@ REAL Lemaitre__R0 "Lemaitre: scale factor (radius) of the universe at time t=0"
REAL de_Sitter__scale "de Sitter: multiplicative scale factor"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 0.1
################################################################################
@@ -730,7 +759,7 @@ REAL de_Sitter__scale "de Sitter: multiplicative scale factor"
REAL de_Sitter_Lambda__scale "de Sitter+Lambda: multiplicative scale factor"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 0.1
################################################################################
@@ -742,7 +771,7 @@ REAL de_Sitter_Lambda__scale "de Sitter+Lambda: multiplicative scale factor"
REAL anti_de_Sitter_Lambda__scale \
"anti-de Sitter+Lambda: multiplicative scale factor"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 0.1
################################################################################
@@ -775,7 +804,7 @@ REAL Goedel__scale "Goedel: multiplicative scale factor"
REAL Bertotti__Lambda "Bertotti: cosmological constant"
{
-*:* :: "any real number"
+*:* :: "any real number"
} -1.0
################################################################################
@@ -843,19 +872,19 @@ REAL Gowdy_wave__amplitude "Gowdy-wave: amplitude parameter"
REAL boost_rotation_symmetric__scale "boost-rotation symmetric: length scale"
{
-0.0: :: "Positive please"
+0.0: :: "Positive please"
} 1.0
REAL boost_rotation_symmetric__amp \
"boost-rotation symmetric: dimensionless amplitude"
{
-0.0: :: "Positive please"
+0.0: :: "Positive please"
} 0.1
REAL boost_rotation_symmetric__min_d \
"boost-rotation symmetric: dimensionless safety distance"
{
-(0.0: :: "any positive real number"
+(0.0: :: "any positive real number"
} 0.01
################################################################################
@@ -878,44 +907,44 @@ BOOLEAN bowl__evolve "bowl: are we evolving the metric?"
# FIXME: can this be negative?
REAL bowl__strength "bowl: deformation strength"
{
-0.0:* :: "any real number >= 0"
+0.0:* :: "any real number >= 0"
} 0.5
REAL bowl__center "bowl: deformation center"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 2.5
# n.b. for bowl__shape = "Gaussian", this parameter is actually
# sqrt(2) times the standard deviation of the Gaussian
REAL bowl__sigma "bowl: width of deformation"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 1.0
REAL bowl__x_scale "bowl: scale for x coordinate"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 1.0
REAL bowl__y_scale "bowl: scale for y coordinate"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 1.0
REAL bowl__z_scale "bowl: scale for z coordinate"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 1.0
REAL bowl__t0 "bowl: center of Fermi step in time"
{
-*:* :: "any real number"
+*:* :: "any real number"
} 1.0
REAL bowl__sigma_t "bowl: width of Fermi step in time"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 1.0
################################################################################
@@ -926,13 +955,13 @@ REAL bowl__sigma_t "bowl: width of Fermi step in time"
REAL constant_density_star__mass "constant density star: mass of star"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 1.0
# FIXME: is this default value ok? (does it give a star or a BH?)
-REAL constant_density_star__radius "constant density star: radius of star"
+REAL constant_density_star__radius "constant density star: radius of star"
{
-(0.0:* :: "any positive real number"
+(0.0:* :: "any positive real number"
} 1.0
################################################################################
diff --git a/schedule.ccl b/schedule.ccl
index 09a7d32..59b4a50 100644
--- a/schedule.ccl
+++ b/schedule.ccl
@@ -66,7 +66,7 @@ if ( (CCTK_Equals(initial_data,"slice")) && ! (CCTK_Equals(evolution_method,"sli
if ( (CCTK_Equals(initial_lapse,"exact")) || (CCTK_Equals(initial_shift,"exact")) )
{
- schedule Exact__gauge in ADMBase_InitialData after Exact__decode_pars
+ schedule Exact__gauge in ADMBase_InitialGauge
{
LANG: Fortran
} "Set initial lapse and/or shift from exact solution on a trivial slice"
@@ -82,10 +82,17 @@ if ( (CCTK_Equals(lapse_evolution_method,"exact")) || (CCTK_Equals(shift_evoluti
OPTIONS: global
} "Register slicings"
+ # Necessary if MoL is not used
schedule Exact__gauge at CCTK_PRESTEP
{
LANG: Fortran
} "Set evolution lapse and/or shift from exact solution on a trivial slice"
+
+ # Necessary if MoL is used
+ schedule Exact__gauge in MoL_PostStep
+ {
+ LANG: Fortran
+ } "Set evolution lapse and/or shift from exact solution on a trivial slice"
}
#######################################################################
diff --git a/src/boost.F77 b/src/boost.F77
index d81b100..dc26340 100644
--- a/src/boost.F77
+++ b/src/boost.F77
@@ -1,5 +1,7 @@
c This subroutine calculates the 4-metric and its inverse at an event,
-c taking into account an optional Lorentz boost.
+c taking into account an optional Lorentz boost and an optional rotation.
+c The model is first rotated and then boosted, such that the boost is
+c applied to the rotated model.
c $Header$
c
c The coordinates are
@@ -9,6 +11,12 @@ c The 4-metrics are
c Cgdd(a,b) = Cactus $g_{ab}$ Cguu(a,b) = Cactus $g^{ab}$
c Mgdd(a,b) = Model $g_{ab}$ Mguu(a,b) = Model $g^{ab}$
c
+c For a definition of the Euler angles in the conventions used below, see
+c http://mathworld.wolfram.com/EulerAngles.html
+c Another useful resource may be
+c http://en.wikipedia.org/wiki/Euler_angles
+c although this uses (on 2006-11-29) different conventions.
+c
c This file is copyright (c) 2003 by Jonathan Thornburg <jthorn@aei.mpg.de>.
c This file is covered by the GNU GPL license; see the files ../README
c and ../COPYING for details.
@@ -21,7 +29,7 @@ c
#include "param_defs.inc"
- subroutine Exact__metric(
+ subroutine Exact__metric(
$ decoded_exact_model,
$ x, y, z, t,
$ gdtt, gdtx, gdty, gdtz,
@@ -30,83 +38,94 @@ c
$ guxx, guyy, guzz, guxy, guyz, guxz,
$ psi)
- implicit none
- DECLARE_CCTK_FUNCTIONS
- DECLARE_CCTK_PARAMETERS
+ implicit none
+ DECLARE_CCTK_FUNCTIONS
+ DECLARE_CCTK_PARAMETERS
c input arguments
- CCTK_INT decoded_exact_model
- CCTK_REAL x, y, z, t
+ CCTK_INT decoded_exact_model
+ CCTK_REAL x, y, z, t
c output arguments
- CCTK_REAL gdtt, gdtx, gdty, gdtz,
- $ gdxx, gdyy, gdzz, gdxy, gdyz, gdxz,
- $ gutt, gutx, guty, gutz,
- $ guxx, guyy, guzz, guxy, guyz, guxz,
- $ psi
+ CCTK_REAL gdtt, gdtx, gdty, gdtz,
+ $ gdxx, gdyy, gdzz, gdxy, gdyz, gdxz,
+ $ gutt, gutx, guty, gutz,
+ $ guxx, guyy, guzz, guxy, guyz, guxz,
+ $ psi
c intrinsic functions called
- CCTK_REAL sqrt
+ CCTK_REAL sqrt
c static local variables describing Lorentz transformation
- logical firstcall
- data firstcall /.true./
- CCTK_REAL gamma
- CCTK_REAL vv(3), nn(3)
- CCTK_REAL parallel(3,3), perp(3,3)
- CCTK_REAL Cx_par(3), Cx_perp(3)
- CCTK_REAL partial_Mx_wrt_Cx(0:3,0:3)
- CCTK_REAL partial_Cx_wrt_Mx(0:3,0:3)
- save firstcall
- save gamma
- save vv, nn
- save parallel, perp
- save Cx_par, Cx_perp
- save partial_Mx_wrt_Cx
- save partial_Cx_wrt_Mx
+ logical firstcall
+ data firstcall /.true./
+ CCTK_REAL gamma
+ CCTK_REAL vv(3), nn(3)
+ CCTK_REAL parallel(3,3), perp(3,3)
+ CCTK_REAL Cx_par(3), Cx_perp(3)
+ CCTK_REAL partial_Mx_wrt_Cx(0:3,0:3)
+ CCTK_REAL partial_Cx_wrt_Mx(0:3,0:3)
+ CCTK_REAL R(0:3,0:3)
+ save firstcall
+ save gamma
+ save vv, nn
+ save parallel, perp
+ save Cx_par, Cx_perp
+ save partial_Mx_wrt_Cx
+ save partial_Cx_wrt_Mx
+ save R
c coordinates and 4-metric
- CCTK_REAL Ct, Cx(3)
- CCTK_REAL Cgdd(0:3,0:3), Cguu(0:3,0:3)
- CCTK_REAL Mt, Mx(3)
- CCTK_REAL Mgdd(0:3,0:3), Mguu(0:3,0:3)
+ CCTK_REAL Cx(0:3)
+ CCTK_REAL Cgdd(0:3,0:3), Cguu(0:3,0:3)
+ CCTK_REAL Mx(0:3)
+ CCTK_REAL Mgdd(0:3,0:3), Mguu(0:3,0:3)
+ CCTK_REAL Nx(0:3)
+ CCTK_REAL Ngdd(0:3,0:3), Nguu(0:3,0:3)
c misc temps
- CCTK_REAL vnorm, vnormsq
- CCTK_REAL delta_ij
- CCTK_REAL Cx_par_i, Cx_perp_i
- CCTK_REAL vdotCx
- CCTK_REAL Cgdd_ab, Cguu_ab
- character*100 warn_buffer
+ CCTK_REAL vnorm, vnormsq
+ CCTK_REAL delta_ij
+ CCTK_REAL Cx_par_i, Cx_perp_i
+ CCTK_REAL vdotCx
+ CCTK_REAL Cgdd_ab, Cguu_ab
+ CCTK_REAL cos_phi, sin_phi
+ CCTK_REAL cos_theta, sin_theta
+ CCTK_REAL cos_psi, sin_psi
+ CCTK_REAL R_phi(0:3,0:3), R_theta(0:3,0:3), R_psi(0:3,0:3)
+ character*1000 warn_buffer
c flags, array indices, etc
- logical Tmunu_flag
- integer i, j
- integer Ca, Cb, MA, MB
+ logical Tmunu_flag
+ integer i, j, k, l
+ integer Ca, Cb, MA, MB
c constants
- integer n
- parameter (n = 3)
+ integer n
+ parameter (n = 3)
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
c
-c optimized fast-path if no Lorentz boost
+c optimized fast-path if no Lorentz boost and no rotation
c
- if ( (boost_vx .eq. 0.0)
- $ .and. (boost_vy .eq. 0.0)
- $ .and. (boost_vz .eq. 0.0) ) then
- call Exact__metric_for_model(
- $ decoded_exact_model,
- $ x, y, z, t,
- $ gdtt, gdtx, gdty, gdtz,
- $ gdxx, gdyy, gdzz, gdxy, gdyz, gdxz,
- $ gutt, gutx, guty, gutz,
- $ guxx, guyy, guzz, guxy, guyz, guxz,
- $ psi,
- $ Tmunu_flag)
- return
- endif
+ if ( (boost_vx .eq. 0.0)
+ $ .and. (boost_vy .eq. 0.0)
+ $ .and. (boost_vz .eq. 0.0)
+ $ .and. (rotation_euler_phi .eq. 0.0)
+ $ .and. (rotation_euler_theta .eq. 0.0)
+ $ .and. (rotation_euler_psi .eq. 0.0)) then
+ call Exact__metric_for_model(
+ $ decoded_exact_model,
+ $ x, y, z, t,
+ $ gdtt, gdtx, gdty, gdtz,
+ $ gdxx, gdyy, gdzz, gdxy, gdyz, gdxz,
+ $ gutt, gutx, guty, gutz,
+ $ guxx, guyy, guzz, guxy, guyz, guxz,
+ $ psi,
+ $ Tmunu_flag)
+ return
+ end if
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
@@ -125,203 +144,321 @@ cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
c
c compute Lorentz transformation information on first call
c
- if (firstcall) then
- firstcall = .false.
+ if (firstcall) then
+ firstcall = .false.
c boost velocity
- vv(1) = boost_vx
- vv(2) = boost_vy
- vv(3) = boost_vz
+ vv(1) = boost_vx
+ vv(2) = boost_vy
+ vv(3) = boost_vz
c Lorentz gamma factor, unit vector in direction of boost velocity
- vnormsq = 0.0d0
- do 100 i = 1,n
- vnormsq = vnormsq + vv(i)*vv(i)
-100 continue
- gamma = 1.0 / sqrt(1.0 - vnormsq)
- vnorm = sqrt(vnormsq)
- do 110 i = 1,n
- nn(i) = vv(i) / vnorm
-110 continue
+ vnormsq = 0.0
+ do i = 1,n
+ vnormsq = vnormsq + vv(i)*vv(i)
+ end do
+ gamma = 1.0 / sqrt(1.0 - vnormsq)
+ vnorm = sqrt(vnormsq)
+ if ( (boost_vx .eq. 0.0)
+ $ .and. (boost_vy .eq. 0.0)
+ $ .and. (boost_vz .eq. 0.0)) then
+ nn(1) = 1
+ nn(2) = 0
+ nn(3) = 0
+ else
+ do i = 1,n
+ nn(i) = vv(i) / vnorm
+ end do
+ end if
c projection operators parallel(*,*) and perp(*,*)
- do 210 j = 1,n
- do 200 i = 1,n
- parallel(i,j) = nn(i) * nn(j)
- if (i .eq. j) then
- delta_ij = 1.0d0
- else
- delta_ij = 0.0d0
- endif
- perp(i,j) = delta_ij - parallel(i,j)
-200 continue
-210 continue
+ do j = 1,n
+ do i = 1,n
+ parallel(i,j) = nn(i) * nn(j)
+ if (i .eq. j) then
+ delta_ij = 1.0
+ else
+ delta_ij = 0.0
+ end if
+ perp(i,j) = delta_ij - parallel(i,j)
+ end do
+ end do
c partial derivatives of Model coordinates with respect to Cactus coordinates
- partial_Mx_wrt_Cx(0,0) = gamma
- do 300 i = 1,n
- partial_Mx_wrt_Cx(0,i) = -gamma*vv(i)
-300 continue
- do 320 i = 1,n
- partial_Mx_wrt_Cx(i,0) = -gamma*vv(i)
- do 310 j=1,n
- partial_Mx_wrt_Cx(i,j)
- $ = gamma*parallel(i,j)
- $ + perp(i,j)
-310 continue
-320 continue
+ partial_Mx_wrt_Cx(0,0) = gamma
+ do i = 1,n
+ partial_Mx_wrt_Cx(0,i) = -gamma*vv(i)
+ end do
+ do i = 1,n
+ partial_Mx_wrt_Cx(i,0) = -gamma*vv(i)
+ do j=1,n
+ partial_Mx_wrt_Cx(i,j) = gamma*parallel(i,j) + perp(i,j)
+ end do
+ end do
c partial derivatives of Cactus coordinates with respect to Model coordinates
- partial_Cx_wrt_Mx(0,0) = gamma
- do 400 i = 1,n
- partial_Cx_wrt_Mx(0,i) = + gamma*vv(i)
-400 continue
- do 420 i = 1,n
- partial_Cx_wrt_Mx(i,0) = + gamma*vv(i)
- do 410 j=1,n
- partial_Cx_wrt_Mx(i,j)
- $ = gamma*parallel(i,j)
- $ + perp(i,j)
-410 continue
-420 continue
-
- endif
+ partial_Cx_wrt_Mx(0,0) = gamma
+ do i = 1,n
+ partial_Cx_wrt_Mx(0,i) = + gamma*vv(i)
+ end do
+ do i = 1,n
+ partial_Cx_wrt_Mx(i,0) = + gamma*vv(i)
+ do j=1,n
+ partial_Cx_wrt_Mx(i,j) = gamma*parallel(i,j) + perp(i,j)
+ end do
+ end do
+
+c Sines and cosines of rotation angles
+ cos_phi = cos (rotation_euler_phi)
+ sin_phi = sin (rotation_euler_phi)
+ cos_theta = cos (rotation_euler_theta)
+ sin_theta = sin (rotation_euler_theta)
+ cos_psi = cos (rotation_euler_psi)
+ sin_psi = sin (rotation_euler_psi)
+
+c Set up individual rotation matrices
+ R_phi(0,0) = 1
+ R_phi(0,1) = 0
+ R_phi(0,2) = 0
+ R_phi(0,3) = 0
+ R_phi(1,0) = 0
+ R_phi(1,1) = + cos_phi
+ R_phi(1,2) = + sin_phi
+ R_phi(1,3) = 0
+ R_phi(2,0) = 0
+ R_phi(2,1) = - sin_phi
+ R_phi(2,2) = + cos_phi
+ R_phi(2,3) = 0
+ R_phi(3,0) = 0
+ R_phi(3,1) = 0
+ R_phi(3,2) = 0
+ R_phi(3,3) = 1
+
+ R_theta(0,0) = 1
+ R_theta(0,1) = 0
+ R_theta(0,2) = 0
+ R_theta(0,3) = 0
+ R_theta(1,0) = 0
+ R_theta(1,1) = 1
+ R_theta(1,2) = 0
+ R_theta(1,3) = 0
+ R_theta(2,0) = 0
+ R_theta(2,1) = 0
+ R_theta(2,2) = + cos_theta
+ R_theta(2,3) = + sin_theta
+ R_theta(3,0) = 0
+ R_theta(3,1) = 0
+ R_theta(3,2) = - sin_theta
+ R_theta(3,3) = + cos_theta
+
+ R_psi(0,0) = 1
+ R_psi(0,1) = 0
+ R_psi(0,2) = 0
+ R_psi(0,3) = 0
+ R_psi(1,0) = 0
+ R_psi(1,1) = + cos_psi
+ R_psi(1,2) = + sin_psi
+ R_psi(1,3) = 0
+ R_psi(2,0) = 0
+ R_psi(2,1) = - sin_psi
+ R_psi(2,2) = + cos_psi
+ R_psi(2,3) = 0
+ R_psi(3,0) = 0
+ R_psi(3,1) = 0
+ R_psi(3,2) = 0
+ R_psi(3,3) = 1
+
+c Combine individual rotation matrices
+ do i = 0,n
+ do j = 0,n
+ R(i,j) = 0
+ do k = 0,n
+ do l = 0,n
+ R(i,j) = R(i,j) + R_psi(i,k) * R_theta(k,l) * R_phi(l,j)
+ end do
+ end do
+ end do
+ end do
+
+c Notes that help me (Erik Schnetter) think:
+c This considers a rotation with phi=0, theta=pi/2, psi=0.
+c Nx(i) = Nx(i) + R(j,i) * Mx(j)
+c Nx(1) = - Mx(3)
+c Nx(3) = Mx(1)
+c Mgxx(1,1) = Ngxx(3,3)
+c Mgxx(1,3) = - Ngxx(1,3)
+c Mgxx(3,3) = Ngxx(1,1)
+c Mgxx(i,j) = R(i,k) R(j,l) Ngxx(k,l) [correct]
+c Mgxx(i,j) = R(k,i) R(l,j) Ngxx(k,l) [correct]
+c Mbetax(1) = - Nbetax(3)
+c Mbetax(3) = Nbetax(1)
+c Mbetax(i) + R(i,j) Nbetax(j) [wrong]
+c Mbetax(i) + R(j,i) Nbetax(j) [correct]
+
+ end if
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
c
c compute flat-space components of Cx(*) parallel and perpendicular to vv(*)
c
- Ct = t
- Cx(1) = x
- Cx(2) = y
- Cx(3) = z
-
- do 530 i=1,n
- Cx_par_i = 0.0d0
- Cx_perp_i = 0.0d0
- do 520 j=1,n
- Cx_par_i = Cx_par_i
- $ + parallel(i,j)*Cx(j)
- Cx_perp_i = Cx_perp_i
- $ + perp (i,j)*Cx(j)
-520 continue
- Cx_par (i) = Cx_par_i
- Cx_perp(i) = Cx_perp_i
-530 continue
+ Cx(0) = t
+ Cx(1) = x
+ Cx(2) = y
+ Cx(3) = z
+
+ do i=1,n
+ Cx_par_i = 0.0
+ Cx_perp_i = 0.0
+ do j=1,n
+ Cx_par_i = Cx_par_i + parallel(i,j)*Cx(j)
+ Cx_perp_i = Cx_perp_i + perp (i,j)*Cx(j)
+ end do
+ Cx_par (i) = Cx_par_i
+ Cx_perp(i) = Cx_perp_i
+ end do
c
-c Lorentz-transform the Cactus coordinate to get the Model coordinates
+c Lorentz-transform and rotate the Cactus coordinate
+c to get the Model coordinates
c
- vdotCx = 0.0
- do 600 i = 1,n
- vdotCx = vdotCx + vv(i)*Cx(i)
-600 continue
- Mt = gamma * (Ct - vdotCx)
- do 610 i=1,n
- Mx(i) = gamma * (Cx_par(i) - vv(i)*Ct)
- $ + Cx_perp(i)
-610 continue
+c Boost
+ vdotCx = 0.0
+ do i = 1,n
+ vdotCx = vdotCx + vv(i)*Cx(i)
+ end do
+
+ Mx(0) = gamma * (Cx(0) - vdotCx)
+ do i=1,n
+ Mx(i) = gamma * (Cx_par(i) - vv(i)*Cx(0)) + Cx_perp(i)
+ end do
+
+c Rotation
+ do i=0,n
+ Nx(i) = 0
+ do j = 0,n
+ Nx(i) = Nx(i) + R(i,j) * Mx(j)
+ end do
+ end do
+
c
c compute the Model 4-metric and inverse 4-metric at the Model coordinates
c
- call Exact__metric_for_model(
- $ decoded_exact_model,
- $ Mx(1), Mx(2), Mx(3), Mt,
- $ Mgdd(0,0), Mgdd(0,1), Mgdd(0,2), Mgdd(0,3),
- $ Mgdd(1,1), Mgdd(2,2), Mgdd(3,3),
- $ Mgdd(1,2), Mgdd(2,3), Mgdd(1,3),
- $ Mguu(0,0), Mguu(0,1), Mguu(0,2), Mguu(0,3),
- $ Mguu(1,1), Mguu(2,2), Mguu(3,3),
- $ Mguu(1,2), Mguu(2,3), Mguu(1,3),
- $ psi, Tmunu_flag)
-
- if (Tmunu_flag) then
- write (warn_buffer, '(a,i8,a,a)')
- $ 'exact_model = ', decoded_exact_model,
- $ 'sets the stress-energy tensor',
- $ ' ==> we cannot Lorentz-boost it! :('
- call CCTK_WARN(0, warn_buffer)
- endif
+ call Exact__metric_for_model(
+ $ decoded_exact_model,
+ $ Nx(1), Nx(2), Nx(3), Nx(0),
+ $ Ngdd(0,0), Ngdd(0,1), Ngdd(0,2), Ngdd(0,3),
+ $ Ngdd(1,1), Ngdd(2,2), Ngdd(3,3),
+ $ Ngdd(1,2), Ngdd(2,3), Ngdd(1,3),
+ $ Nguu(0,0), Nguu(0,1), Nguu(0,2), Nguu(0,3),
+ $ Nguu(1,1), Nguu(2,2), Nguu(3,3),
+ $ Nguu(1,2), Nguu(2,3), Nguu(1,3),
+ $ psi, Tmunu_flag)
+
+ if (Tmunu_flag) then
+ write (warn_buffer, '(a,i8,a,a)')
+ $ 'exact_model = ', decoded_exact_model,
+ $ 'sets the stress-energy tensor',
+ $ ' ==> we cannot Lorentz-boost or rotate it!'
+ call CCTK_WARN(0, warn_buffer)
+ end if
c
c symmetrize the Model 4-metric and inverse 4-metric arrays
c (the Exact__metric_for_model() call only set the upper triangles)
c
- Mgdd(1,0) = Mgdd(0,1)
- Mgdd(2,0) = Mgdd(0,2)
- Mgdd(2,1) = Mgdd(1,2)
- Mgdd(3,0) = Mgdd(0,3)
- Mgdd(3,1) = Mgdd(1,3)
- Mgdd(3,2) = Mgdd(2,3)
-
- Mguu(1,0) = Mguu(0,1)
- Mguu(2,0) = Mguu(0,2)
- Mguu(2,1) = Mguu(1,2)
- Mguu(3,0) = Mguu(0,3)
- Mguu(3,1) = Mguu(1,3)
- Mguu(3,2) = Mguu(2,3)
+ Ngdd(1,0) = Ngdd(0,1)
+ Ngdd(2,0) = Ngdd(0,2)
+ Ngdd(2,1) = Ngdd(1,2)
+ Ngdd(3,0) = Ngdd(0,3)
+ Ngdd(3,1) = Ngdd(1,3)
+ Ngdd(3,2) = Ngdd(2,3)
+
+ Nguu(1,0) = Nguu(0,1)
+ Nguu(2,0) = Nguu(0,2)
+ Nguu(2,1) = Nguu(1,2)
+ Nguu(3,0) = Nguu(0,3)
+ Nguu(3,1) = Nguu(1,3)
+ Nguu(3,2) = Nguu(2,3)
c
c tensor-transorm (the upper triangle of) the 4-metric and inverse 4-metric
c
- do 730 Ca = 0,n
- do 720 Cb = Ca,n
- Cgdd_ab = 0.0d0
- do 710 Ma = 0,n
- do 700 Mb = 0,n
- Cgdd_ab = Cgdd_ab
- $ + Mgdd(Ma,Mb)
- $ * partial_Mx_wrt_Cx(Ma,Ca)
- $ * partial_Mx_wrt_Cx(Mb,Cb)
-700 continue
-710 continue
- Cgdd(Ca,Cb) = Cgdd_ab
-720 continue
-730 continue
-
- do 830 Ca = 0,n
- do 820 Cb = Ca,n
- Cguu_ab = 0.0d0
- do 810 Ma = 0,n
- do 800 Mb = 0,n
- Cguu_ab = Cguu_ab
- $ + Mguu(Ma,Mb)
- $ * partial_Cx_wrt_Mx(Ca,Ma)
- $ * partial_Cx_wrt_Mx(Cb,Mb)
-800 continue
-810 continue
- Cguu(Ca,Cb) = Cguu_ab
-820 continue
-830 continue
+
+c Rotations
+ do i = 0,n
+ do j = 0,n
+ Mgdd(i,j) = 0
+ Mguu(i,j) = 0
+ do k = 0,n
+ do l = 0,n
+ Mgdd(i,j) = Mgdd(i,j) + R(k,i) * R(l,j) * Ngdd(k,l)
+c The inverse of R is also its transpose. That means that the
+c transpose of the inverse, which you would use for g^ij, is just R
+c again.
+ Mguu(i,j) = Mguu(i,j) + R(k,i) * R(l,j) * Nguu(k,l)
+ end do
+ end do
+ end do
+ end do
+
+c Boost
+ do Ca = 0,n
+ do Cb = Ca,n
+ Cgdd_ab = 0.0
+ do Ma = 0,n
+ do Mb = 0,n
+ Cgdd_ab = Cgdd_ab
+ $ + Mgdd(Ma,Mb)
+ $ * partial_Mx_wrt_Cx(Ma,Ca)
+ $ * partial_Mx_wrt_Cx(Mb,Cb)
+ end do
+ end do
+ Cgdd(Ca,Cb) = Cgdd_ab
+ end do
+ end do
+
+ do Ca = 0,n
+ do Cb = Ca,n
+ Cguu_ab = 0.0
+ do Ma = 0,n
+ do Mb = 0,n
+ Cguu_ab = Cguu_ab
+ $ + Mguu(Ma,Mb)
+ $ * partial_Cx_wrt_Mx(Ca,Ma)
+ $ * partial_Cx_wrt_Mx(Cb,Mb)
+ end do
+ end do
+ Cguu(Ca,Cb) = Cguu_ab
+ end do
+ end do
c
c unpack the Cactus-coordinates 4-metric and inverse 4-metric
c into the corresponding output arguments
c
- gdtt = Cgdd(0,0)
- gdtx = Cgdd(0,1)
- gdty = Cgdd(0,2)
- gdtz = Cgdd(0,3)
- gdxx = Cgdd(1,1)
- gdxy = Cgdd(1,2)
- gdxz = Cgdd(1,3)
- gdyy = Cgdd(2,2)
- gdyz = Cgdd(2,3)
- gdzz = Cgdd(3,3)
-
- gutt = Cguu(0,0)
- gutx = Cguu(0,1)
- guty = Cguu(0,2)
- gutz = Cguu(0,3)
- guxx = Cguu(1,1)
- guxy = Cguu(1,2)
- guxz = Cguu(1,3)
- guyy = Cguu(2,2)
- guyz = Cguu(2,3)
- guzz = Cguu(3,3)
-
- return
- end
+ gdtt = Cgdd(0,0)
+ gdtx = Cgdd(0,1)
+ gdty = Cgdd(0,2)
+ gdtz = Cgdd(0,3)
+ gdxx = Cgdd(1,1)
+ gdxy = Cgdd(1,2)
+ gdxz = Cgdd(1,3)
+ gdyy = Cgdd(2,2)
+ gdyz = Cgdd(2,3)
+ gdzz = Cgdd(3,3)
+
+ gutt = Cguu(0,0)
+ gutx = Cguu(0,1)
+ guty = Cguu(0,2)
+ gutz = Cguu(0,3)
+ guxx = Cguu(1,1)
+ guxy = Cguu(1,2)
+ guxz = Cguu(1,3)
+ guyy = Cguu(2,2)
+ guyz = Cguu(2,3)
+ guzz = Cguu(3,3)
+
+ end
diff --git a/src/decode_pars.F77 b/src/decode_pars.F77
index 1b7da46..d51bb4a 100644
--- a/src/decode_pars.F77
+++ b/src/decode_pars.F77
@@ -76,6 +76,8 @@ c black hole spacetimes
decoded_exact_model = EXACT__Kerr_BoyerLindquist
elseif (CCTK_Equals(exact_model, "Kerr/Kerr-Schild") .ne. 0) then
decoded_exact_model = EXACT__Kerr_KerrSchild
+ elseif (CCTK_Equals(exact_model, "Kerr/Kerr-Schild/spherical") .ne. 0) then
+ decoded_exact_model = EXACT__Kerr_KerrSchild_spherical
elseif (CCTK_Equals(exact_model, "Schwarzschild-Lemaitre") .ne. 0) then
decoded_exact_model = EXACT__Schwarzschild_Lemaitre
elseif (CCTK_Equals(exact_model, "multi-BH") .ne. 0) then
diff --git a/src/gauge.F77 b/src/gauge.F77
index 56088fb..b10bfa1 100644
--- a/src/gauge.F77
+++ b/src/gauge.F77
@@ -19,6 +19,7 @@ C $Header$
integer i,j,k
integer nx,ny,nz
+ CCTK_REAL tt, xx, yy, zz
CCTK_REAL gxxjunk, gyyjunk, gzzjunk,
$ gxyjunk, gyzjunk, gxzjunk,
$ hxxjunk, hyyjunk, hzzjunk,
@@ -84,6 +85,11 @@ C
do j=1,ny
do i=1,nx
+ tt = cctk_time
+ xx = x(i,j,k) - cctk_time * shift_add_x
+ yy = y(i,j,k) - cctk_time * shift_add_y
+ zz = z(i,j,k) - cctk_time * shift_add_z
+
C Initialize the psi of exact
C (also to tell the models about the conformal_state)
if (conformal_state .ne. 0) then
@@ -103,7 +109,7 @@ C (also to tell the models about the conformal_state)
call Exact__Bona_Masso_data(
$ decoded_exact_model,
- $ x(i,j,k), y(i,j,k), z(i,j,k), cctk_time,
+ $ xx, yy, zz, tt,
$ gxxjunk, gyyjunk, gzzjunk,
$ gxyjunk, gyzjunk, gxzjunk,
$ hxxjunk, hyyjunk, hzzjunk,
@@ -147,6 +153,11 @@ C
do j=1,ny
do i=1,nx
+ tt = cctk_time
+ xx = x(i,j,k) - cctk_time * shift_add_x
+ yy = y(i,j,k) - cctk_time * shift_add_y
+ zz = z(i,j,k) - cctk_time * shift_add_z
+
C Initialize the psi of exact
C (also to tell the models about the conformal_state)
if (conformal_state .ne. 0) then
@@ -166,7 +177,7 @@ C (also to tell the models about the conformal_state)
call Exact__Bona_Masso_data(
$ decoded_exact_model,
- $ x(i,j,k), y(i,j,k), z(i,j,k), cctk_time,
+ $ xx, yy, zz, tt,
$ gxxjunk, gyyjunk, gzzjunk,
$ gxyjunk, gyzjunk, gxzjunk,
$ hxxjunk, hyyjunk, hzzjunk,
@@ -208,6 +219,11 @@ C
do j=1,ny
do i=1,nx
+ tt = cctk_time
+ xx = x(i,j,k) - cctk_time * shift_add_x
+ yy = y(i,j,k) - cctk_time * shift_add_y
+ zz = z(i,j,k) - cctk_time * shift_add_z
+
C Initialize the psi of exact
C (also to tell the models about the conformal_state)
if (conformal_state .ne. 0) then
@@ -227,7 +243,7 @@ C (also to tell the models about the conformal_state)
call Exact__Bona_Masso_data(
$ decoded_exact_model,
- $ x(i,j,k), y(i,j,k), z(i,j,k), cctk_time,
+ $ xx, yy, zz, tt,
$ gxxjunk, gyyjunk, gzzjunk,
$ gxyjunk, gyzjunk, gxzjunk,
$ hxxjunk, hyyjunk, hzzjunk,
diff --git a/src/include/Scalar_CalcTmunu.inc b/src/include/Scalar_CalcTmunu.inc
index 346fe09..e4ae8da 100644
--- a/src/include/Scalar_CalcTmunu.inc
+++ b/src/include/Scalar_CalcTmunu.inc
@@ -61,6 +61,8 @@ c no stress-energy tensor in this model
c no stress-energy tensor in this model
elseif (decoded_exact_model .eq. EXACT__Kerr_KerrSchild) then
c no stress-energy tensor in this model
+ elseif (decoded_exact_model .eq. EXACT__Kerr_KerrSchild_spherical) then
+c no stress-energy tensor in this model
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
diff --git a/src/include/param_defs.inc b/src/include/param_defs.inc
index 10bbefa..d2374cb 100644
--- a/src/include/param_defs.inc
+++ b/src/include/param_defs.inc
@@ -38,16 +38,17 @@ c Minkowski spacetime
#define EXACT__Minkowski_conf_wave 6
c black hole spacetimes
-#define EXACT__Schwarzschild_EF 10
-#define EXACT__Schwarzschild_PG 11
-#define EXACT__Schwarzschild_BL 12
-#define EXACT__Schwarzschild_Novikov 13
-#define EXACT__Kerr_BoyerLindquist 14
-#define EXACT__Kerr_KerrSchild 15
-#define EXACT__Schwarzschild_Lemaitre 16
-#define EXACT__multi_BH 17
-#define EXACT__Alvi 18
-#define EXACT__Thorne_fakebinary 19
+#define EXACT__Schwarzschild_EF 10
+#define EXACT__Schwarzschild_PG 11
+#define EXACT__Schwarzschild_BL 12
+#define EXACT__Schwarzschild_Novikov 13
+#define EXACT__Kerr_BoyerLindquist 14
+#define EXACT__Kerr_KerrSchild 15
+#define EXACT__Kerr_KerrSchild_spherical 16
+#define EXACT__Schwarzschild_Lemaitre 17
+#define EXACT__multi_BH 18
+#define EXACT__Alvi 19
+#define EXACT__Thorne_fakebinary 20
c cosmological spacetimes
#define EXACT__Lemaitre 50
diff --git a/src/metric.F77 b/src/metric.F77
index a93ea12..f28c948 100644
--- a/src/metric.F77
+++ b/src/metric.F77
@@ -154,6 +154,15 @@ c
$ guxx, guyy, guzz, guxy, guyz, guxz,
$ psi, Tmunu_flag)
+ elseif (decoded_exact_model .eq. EXACT__Kerr_KerrSchild_spherical) then
+ call Exact__Kerr_KerrSchild_spherical(
+ $ x, y, z, t,
+ $ gdtt, gdtx, gdty, gdtz,
+ $ gdxx, gdyy, gdzz, gdxy, gdyz, gdxz,
+ $ gutt, gutx, guty, gutz,
+ $ guxx, guyy, guzz, guxy, guyz, guxz,
+ $ psi, Tmunu_flag)
+
elseif (decoded_exact_model .eq. EXACT__Schwarzschild_Lemaitre) then
call Exact__Schwarzschild_Lemaitre(
$ x, y, z, t,
diff --git a/src/metrics/Kerr_KerrSchild.F77 b/src/metrics/Kerr_KerrSchild.F77
index f2fb45a..11b6ce1 100644
--- a/src/metrics/Kerr_KerrSchild.F77
+++ b/src/metrics/Kerr_KerrSchild.F77
@@ -38,6 +38,7 @@ c output arguments
c local variables
CCTK_REAL boostv, eps, m, a
+ integer power
c local variables
CCTK_REAL gamma, t0, z0, x0, y0, rho02, r02, r0, costheta0,
@@ -54,6 +55,7 @@ C to the J/m definition used in the code here.
boostv = Kerr_KerrSchild__boost_v
eps = Kerr_KerrSchild__epsilon
+ power = Kerr_KerrSchild__power
m = Kerr_KerrSchild__mass
a = m*Kerr_KerrSchild__spin
@@ -79,7 +81,18 @@ C Spherical auxiliary coordinate r and angle theta in BH rest frame.
r02 = 0.5d0 * (rho02 - a**2)
$ + sqrt(0.25d0 * (rho02 - a**2)**2 + a**2 * z0**2)
- r0 = (r02**2 + eps**4)**0.25d0
+ r0 = sqrt(r02)
+ if (Kerr_KerrSchild__parabolic .eq. 0) then
+C Use a power law to avoid the singularity
+ r0 = (r0**power + eps**power)**(1.0d0/power)
+ else
+ if (r0 .lt. eps) then
+ r0 = (eps + r0**2 / eps) / 2
+ end if
+ end if
+C Another idea:
+C r0 = r0 + eps * exp(-x/eps)
+
costheta0 = z0 / r0
C Coefficient H. Note this transforms as a scalar, so does not carry
diff --git a/src/metrics/Kerr_KerrSchild_spherical.F77 b/src/metrics/Kerr_KerrSchild_spherical.F77
new file mode 100644
index 0000000..417b224
--- /dev/null
+++ b/src/metrics/Kerr_KerrSchild_spherical.F77
@@ -0,0 +1,182 @@
+C Kerr-Schild form of boosted rotating black hole.
+C Program g_ab = eta_ab + H l_a l_b, g^ab = eta^ab - H l^a l^b.
+C Here eta_ab is Minkowski in Cartesian coordinates, H is a scalar,
+C and l is a null vector.
+C
+C The coordinates are distorted, such that the event horizon is
+C a coordinate sphere.
+C
+C Author: Erik Schnetter <schnetter@cct.lsu.edu>
+C This formulation was invented by Nils Dorband <dorband@cct.lsu.edu>
+C
+C $Header$
+
+#include "cctk.h"
+#include "cctk_Parameters.h"
+#include "cctk_Functions.h"
+
+ subroutine Exact__Kerr_KerrSchild_spherical (
+ $ x, y, z, t,
+ $ gdtt, gdtx, gdty, gdtz,
+ $ gdxx, gdyy, gdzz, gdxy, gdyz, gdzx,
+ $ gutt, gutx, guty, gutz,
+ $ guxx, guyy, guzz, guxy, guyz, guzx,
+ $ psi, Tmunu_flag)
+
+ implicit none
+
+ DECLARE_CCTK_PARAMETERS
+ DECLARE_CCTK_FUNCTIONS
+
+c input arguments
+ CCTK_REAL x, y, z, t
+
+c output arguments
+ CCTK_REAL gdtt, gdtx, gdty, gdtz,
+ $ gdxx, gdyy, gdzz, gdxy, gdyz, gdzx,
+ $ gutt, gutx, guty, gutz,
+ $ guxx, guyy, guzz, guxy, guyz, guzx
+ CCTK_REAL psi
+ LOGICAL Tmunu_flag
+
+c local variables
+ CCTK_REAL boostv, eps, m, a
+
+c local variables
+ CCTK_REAL t1, x1, y1, z1, rho1,
+ $ gamma, t0, z0, x0, y0, rho02, r02, r0, costheta0,
+ $ lt0, lx0, ly0, lz0, hh, lt, lx, ly, lz
+
+ CCTK_REAL gd(3,3), gdt(3,3), det, jac(3,3)
+
+ integer i, j, k, l
+
+cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
+
+C This is a vacuum spacetime with no cosmological constant
+ Tmunu_flag = .false.
+
+C Get parameters of the exact solution,
+C and convert from parameter file spin parameter J/m^2
+C to the J/m definition used in the code here.
+
+ boostv = Kerr_KerrSchild__boost_v
+ eps = Kerr_KerrSchild__epsilon
+ m = Kerr_KerrSchild__mass
+ a = m*Kerr_KerrSchild__spin
+
+C Distort the coordinates such that the event horizon is a
+C coordinate sphere
+ rho1 = sqrt (x**2 + y**2 + z**2)
+ rho1 = (rho1**4 + eps**4) ** 0.25d0
+ t1 = t
+ x1 = x - a * y / rho1
+ y1 = y + a * x / rho1
+ z1 = z
+
+C Boost factor.
+
+ gamma = 1 / sqrt(1 - boostv**2)
+
+C Lorentz transform t,x,y,z -> t0,x0,y0,z0.
+C t0 is never used, but is here for illustration, and we introduce
+C x0 and y0 also only for clarity.
+C Note that z0 = 0 means z = vt for the BH.
+
+ t0 = gamma * ((t1 - Kerr_KerrSchild__t) - boostv * (z1 - Kerr_KerrSchild__z))
+ z0 = gamma * ((z1 - Kerr_KerrSchild__z) - boostv * (t1 - Kerr_KerrSchild__t))
+ x0 = x1 - Kerr_KerrSchild__x
+ y0 = y1 - Kerr_KerrSchild__y
+
+C Spherical auxiliary coordinate r and angle theta in BH rest frame.
+
+ r0 = rho1
+ costheta0 = z0 / r0
+
+C Coefficient H. Note this transforms as a scalar, so does not carry
+C the suffix 0.
+ hh = m * r0 / (r0**2 + a**2 * costheta0**2)
+
+C Components of l_a in rest frame. Note indices down.
+ lt0 = 1.d0
+ lx0 = (r0 * x0 + a * y0) / (r0**2 + a**2)
+ ly0 = (r0 * y0 - a * x0) / (r0**2 + a**2)
+ lz0 = z0 / r0
+
+C Now boost it to coordinates x, y, z, t.
+C This is the reverse Lorentz transformation, but applied
+C to a one-form, so the sign of boostv is the same as the forward
+C Lorentz transformation applied to the coordinates.
+
+ lt = gamma * (lt0 - boostv * lz0)
+ lz = gamma * (lz0 - boostv * lt0)
+ lx = lx0
+ ly = ly0
+
+C Down metric. g_ab = flat_ab + H l_a l_b
+
+ gdtt = - 1.d0 + 2.d0 * hh * lt * lt
+ gdtx = 2.d0 * hh * lt * lx
+ gdty = 2.d0 * hh * lt * ly
+ gdtz = 2.d0 * hh * lt * lz
+
+ gd(1,1) = 1.d0 + 2.d0 * hh * lx * lx
+ gd(2,2) = 1.d0 + 2.d0 * hh * ly * ly
+ gd(3,3) = 1.d0 + 2.d0 * hh * lz * lz
+ gd(1,2) = 2.d0 * hh * lx * ly
+ gd(2,3) = 2.d0 * hh * ly * lz
+ gd(3,1) = 2.d0 * hh * lz * lx
+ gd(2,1) = gd(1,2)
+ gd(3,2) = gd(2,3)
+ gd(1,3) = gd(3,1)
+
+C Transform the tensor basis back
+ jac(1,1) = 1 + (a*x*y) / (rho1**3)
+ jac(1,2) = - a * (x**2+z**2) / (rho1**3)
+ jac(1,3) = a*y*z / (rho1**3)
+
+ jac(2,1) = a * (y**2+z**2) / (rho1**3)
+ jac(2,2) = 1 - a*x*y / (rho1**3)
+ jac(2,3) = - a*x*z / (rho1**3)
+
+ jac(3,1) = 0
+ jac(3,2) = 0
+ jac(3,3) = 1
+
+ do i = 1, 3
+ do j = 1, 3
+ gdt(i,j) = 0
+ do k = 1, 3
+ do l = 1, 3
+ gdt(i,j) = gdt(i,j) + gd(k,l) * jac(k,i) * jac(l,j)
+ end do
+ end do
+ end do
+ end do
+
+ gdxx = gdt(1,1)
+ gdyy = gdt(2,2)
+ gdzz = gdt(3,3)
+ gdxy = gdt(1,2)
+ gdyz = gdt(2,3)
+ gdzx = gdt(3,1)
+
+C Up metric. g^ab = flat^ab - H l^a l^b.
+C Notice that g^ab = g_ab and l^i = l_i and l^0 = - l_0 in flat spacetime.
+ gutt = - 1.d0 - 2.d0 * hh * lt * lt
+ gutx = 2.d0 * hh * lt * lx
+ guty = 2.d0 * hh * lt * ly
+ gutz = 2.d0 * hh * lt * lz
+
+ det = gdxx*gdyy*gdzz + 2*gdxy*gdzx*gdyz
+ . - gdxx*gdyz**2 - gdyy*gdzx**2 - gdzz*gdxy**2
+
+ guxx = (gdyy*gdzz - gdyz**2)/det
+ guyy = (gdxx*gdzz - gdzx**2)/det
+ guzz = (gdxx*gdyy - gdxy**2)/det
+
+ guxy = (gdzx*gdyz - gdzz*gdxy)/det
+ guyz = (gdxy*gdzx - gdxx*gdyz)/det
+ guzx = (gdxy*gdyz - gdyy*gdzx)/det
+
+ end
diff --git a/src/metrics/make.code.defn b/src/metrics/make.code.defn
index 12226e2..1e90de0 100644
--- a/src/metrics/make.code.defn
+++ b/src/metrics/make.code.defn
@@ -19,6 +19,7 @@ SRCS = Minkowski.F77 \
Schwarzschild_Novikov.F77 \
Kerr_BoyerLindquist.F77 \
Kerr_KerrSchild.F77 \
+ Kerr_KerrSchild_spherical.F77 \
Schwarzschild_Lemaitre.F77 \
multi_BH.F77 \
Thorne_fakebinary.F77 \
diff --git a/test/KS-tilted.par b/test/KS-tilted.par
new file mode 100644
index 0000000..445224d
--- /dev/null
+++ b/test/KS-tilted.par
@@ -0,0 +1,96 @@
+Cactus::cctk_run_title = "Tilted Kerr/Kerr-Schild data"
+Cactus::cctk_full_warnings = yes
+
+Cactus::cctk_itlast = 2
+
+ActiveThorns = "IOUtil"
+IO::out_dir = $parfile
+IO::out_fileinfo = "axis labels"
+IO::parfile_write = "no"
+
+ActiveThorns = "AEILocalInterp LocalInterp LocalReduce"
+
+ActiveThorns = "SphericalSurface"
+
+ActiveThorns = "PUGH PUGHInterp PUGHReduce PUGHSlab"
+driver::global_nsize = 49
+driver::ghost_size = 2
+
+ActiveThorns = "NaNChecker"
+
+ActiveThorns = "Boundary CartGrid3D CoordBase SymBase SymBase"
+CartGrid3D::type = "byspacing"
+CartGrid3D::domain = "full"
+CartGrid3D::dxyz = 0.125
+CartGrid3D::avoid_origin = no
+
+ActiveThorns = "ADMBase ADMCoupling ADMMacros CoordGauge SpaceMask StaticConformal TmunuBase"
+SpaceMask::use_mask = yes
+
+ActiveThorns = "Exact"
+ADMBase::initial_data = "exact"
+ADMBase::initial_lapse = "exact"
+ADMBase::initial_shift = "exact"
+Exact::exact_model = "Kerr/Kerr-Schild"
+Exact::rotation_euler_theta = 0.4 # in radians, approx. 23 degrees
+
+ActiveThorns = "LegoExcision"
+LegoExcision::fixed_excision = "sphere"
+LegoExcision::fixed_size = 1.01
+
+ActiveThorns = "Time"
+Time::dtfac = 0.25
+
+ActiveThorns = "MoL"
+MoL::ODE_Method = "RK3"
+
+ActiveThorns = "BSSN_MoL"
+BSSN_MoL::excise = yes
+BSSN_MoL::excisionType = "lego"
+
+ADMBase::evolution_method = ADM_BSSN
+ADM_BSSN::stencil_size = 2
+ADM_BSSN::advection = "upwind2"
+ADM_BSSN::bound = "newrad"
+ADM_BSSN::BSSN_MaxNumConstrainedVars = 16
+
+ActiveThorns = "ADMConstraints"
+
+ActiveThorns = "AHFinderDirect"
+AHFinderDirect::output_OpenDX_control_files = no
+AHFinderDirect::geometry_interpolator_name = "Lagrange polynomial interpolation"
+AHFinderDirect::geometry_interpolator_pars = "order=4"
+AHFinderDirect::surface_interpolator_name = "Lagrange polynomial interpolation"
+AHFinderDirect::surface_interpolator_pars = "order=4"
+
+ActiveThorns = "IOBasic"
+IOBasic::outInfo_every = 1
+IOBasic::outInfo_reductions = "norm2"
+IOBasic::outInfo_vars = "
+ ADMConstraints::ham
+ ADMBase::gxx
+"
+
+IOBasic::outScalar_every = 1
+IOBasic::outScalar_reductions = "average count maximum minimum norm1 norm2 norm_inf"
+IOBasic::outScalar_vars = "
+ ADMBase::metric
+ ADMBase::curv
+ ADMBase::lapse
+ ADMBase::shift
+ ADMConstraints::hamiltonian
+ ADMConstraints::momentum
+ SpaceMask::mask
+"
+
+ActiveThorns = "IOASCII"
+IOASCII::out1D_every = 1
+IOASCII::out1D_vars = "
+ ADMBase::metric
+ ADMBase::curv
+ ADMBase::lapse
+ ADMBase::shift
+ ADMConstraints::hamiltonian
+ ADMConstraints::momentum
+ SpaceMask::mask
+"
diff --git a/test/KS-tilted/BH_diagnostics.ah1.gp b/test/KS-tilted/BH_diagnostics.ah1.gp
new file mode 100644
index 0000000..8114c5b
--- /dev/null
+++ b/test/KS-tilted/BH_diagnostics.ah1.gp
@@ -0,0 +1,42 @@
+# apparent horizon 1/1
+#
+# column 1 = cctk_iteration
+# column 2 = cctk_time
+# column 3 = centroid_x
+# column 4 = centroid_y
+# column 5 = centroid_z
+# column 6 = min radius
+# column 7 = max radius
+# column 8 = mean radius
+# column 9 = quadrupole_xx
+# column 10 = quadrupole_xy
+# column 11 = quadrupole_xz
+# column 12 = quadrupole_yy
+# column 13 = quadrupole_yz
+# column 14 = quadrupole_zz
+# column 15 = min x
+# column 16 = max x
+# column 17 = min y
+# column 18 = max y
+# column 19 = min z
+# column 20 = max z
+# column 21 = xy-plane circumference
+# column 22 = xz-plane circumference
+# column 23 = yz-plane circumference
+# column 24 = ratio of xz/xy-plane circumferences
+# column 25 = ratio of yz/xy-plane circumferences
+# column 26 = area
+# column 27 = m_irreducible
+# column 28 = areal radius
+# column 29 = expansion Theta_(l)
+# column 30 = inner expansion Theta_(n)
+# column 31 = product of the expansions
+# column 32 = mean curvature
+# column 33 = gradient of the areal radius
+# column 34 = gradient of the expansion Theta_(l)
+# column 35 = gradient of the inner expansion Theta_(n)
+# column 36 = gradient of the product of the expansions
+# column 37 = gradient of the mean curvature
+0 0.000 -0.000000 0.000000 0.000000 1.800107386 1.897357126 1.865240773 1.199983840 -2.341261159e-08 -7.705129016e-08 1.181787313 0.04304125283 1.098188158 -1.897343169 1.897343169 -1.881558869 1.881558869 -1.813788206 1.813788206 12.40953204 11.74974772 11.61754522 0.9468324573 0.9361791549 45.23835967 0.9486772739 1.897354548 -1.081225865e-11 -1.466239844 1.657958671e-11 0.7331199219 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000
+1 0.031 -0.000000 -0.000000 0.000000 1.799995950 1.897244949 1.865125428 1.199837619 -1.223698721e-07 -3.390703490e-07 1.181642415 0.04303875551 1.098048978 -1.897244949 1.897244949 -1.881459721 1.881459721 -1.813685028 1.813685028 12.40910569 11.74919833 11.61698218 0.9468207162 0.9361659475 45.23328718 0.9486240856 1.897248171 -3.293764153e-16 -1.466281593 4.966112274e-16 0.7331407966 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000
+2 0.062 -0.000000 -0.000000 0.000000 1.799888324 1.897150818 1.865014207 1.199696765 -2.081014156e-07 -5.741339136e-07 1.181502773 0.04303642658 1.097914589 -1.897150818 1.897150818 -1.881364449 1.881364449 -1.813585228 1.813585228 12.40869291 11.74866887 11.61643983 0.9468095436 0.9361533823 45.22843886 0.9485732452 1.897146490 9.825935079e-17 -1.466319752 -1.506907866e-16 0.7331598758 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000
diff --git a/test/KS-tilted/alp_3D_diagonal.xg b/test/KS-tilted/alp_3D_diagonal.xg
new file mode 100644
index 0000000..6d025e2
--- /dev/null
+++ b/test/KS-tilted/alp_3D_diagonal.xg
@@ -0,0 +1,158 @@
+"x-label diagonal
+"y-label ADMBASE::alp
+
+
+"Time = 0.0000000000000
+-5.1961524227066 0.8491838137798
+-4.9796460717605 0.8440302314853
+-4.7631397208144 0.8385063860414
+-4.5466333698683 0.8325701064365
+-4.3301270189222 0.8261724128828
+-4.1136206679761 0.8192560464056
+-3.8971143170300 0.8117535880699
+-3.6806079660839 0.8035850231432
+-3.4641016151378 0.7946545420772
+-3.2475952641916 0.7848462727130
+-3.0310889132455 0.7740184844577
+-2.8145825622994 0.7619955561369
+-2.5980762113533 0.7485565831352
+-2.3815698604072 0.7334187813939
+-2.1650635094611 0.7162125660409
+-1.9485571585150 0.6964428409450
+-1.7320508075689 0.6734267500570
+-1.5155444566228 0.6461911061836
+-1.2990381056767 0.6133094408108
+-1.0825317547305 0.5727502701744
+-0.8660254037844 0.5231578523833
+-0.6495190528383 0.4890452737869
+-0.4330127018922 0.6319359177817
+-0.2165063509461 0.8340367852500
+0.0000000000000 0.0000000070711
+0.2165063509461 0.8340367852500
+0.4330127018922 0.6319359177817
+0.6495190528383 0.4890452737869
+0.8660254037844 0.5231578523833
+1.0825317547305 0.5727502701744
+1.2990381056767 0.6133094408108
+1.5155444566228 0.6461911061836
+1.7320508075689 0.6734267500570
+1.9485571585150 0.6964428409450
+2.1650635094611 0.7162125660409
+2.3815698604072 0.7334187813939
+2.5980762113533 0.7485565831352
+2.8145825622994 0.7619955561369
+3.0310889132455 0.7740184844577
+3.2475952641916 0.7848462727130
+3.4641016151378 0.7946545420772
+3.6806079660839 0.8035850231432
+3.8971143170300 0.8117535880699
+4.1136206679761 0.8192560464056
+4.3301270189222 0.8261724128828
+4.5466333698683 0.8325701064365
+4.7631397208144 0.8385063860414
+4.9796460717605 0.8440302314853
+5.1961524227066 0.8491838137798
+
+
+"Time = 0.0312500000000
+-5.1961524227066 0.8491838137798
+-4.9796460717605 0.8440302314853
+-4.7631397208144 0.8385063860414
+-4.5466333698683 0.8325701064365
+-4.3301270189222 0.8261724128828
+-4.1136206679761 0.8192560464056
+-3.8971143170300 0.8117535880699
+-3.6806079660839 0.8035850231432
+-3.4641016151378 0.7946545420772
+-3.2475952641916 0.7848462727130
+-3.0310889132455 0.7740184844577
+-2.8145825622994 0.7619955561369
+-2.5980762113533 0.7485565831352
+-2.3815698604072 0.7334187813939
+-2.1650635094611 0.7162125660409
+-1.9485571585150 0.6964428409450
+-1.7320508075689 0.6734267500570
+-1.5155444566228 0.6461911061836
+-1.2990381056767 0.6133094408108
+-1.0825317547305 0.5727502701744
+-0.8660254037844 0.5231578523833
+-0.6495190528383 0.4890452737869
+-0.4330127018922 0.6319359177817
+-0.2165063509461 0.8340367852500
+0.0000000000000 0.0000000070711
+0.2165063509461 0.8340367852500
+0.4330127018922 0.6319359177817
+0.6495190528383 0.4890452737869
+0.8660254037844 0.5231578523833
+1.0825317547305 0.5727502701744
+1.2990381056767 0.6133094408108
+1.5155444566228 0.6461911061836
+1.7320508075689 0.6734267500570
+1.9485571585150 0.6964428409450
+2.1650635094611 0.7162125660409
+2.3815698604072 0.7334187813939
+2.5980762113533 0.7485565831352
+2.8145825622994 0.7619955561369
+3.0310889132455 0.7740184844577
+3.2475952641916 0.7848462727130
+3.4641016151378 0.7946545420772
+3.6806079660839 0.8035850231432
+3.8971143170300 0.8117535880699
+4.1136206679761 0.8192560464056
+4.3301270189222 0.8261724128828
+4.5466333698683 0.8325701064365
+4.7631397208144 0.8385063860414
+4.9796460717605 0.8440302314853
+5.1961524227066 0.8491838137798
+
+
+"Time = 0.0625000000000
+-5.1961524227066 0.8491838137798
+-4.9796460717605 0.8440302314853
+-4.7631397208144 0.8385063860414
+-4.5466333698683 0.8325701064365
+-4.3301270189222 0.8261724128828
+-4.1136206679761 0.8192560464056
+-3.8971143170300 0.8117535880699
+-3.6806079660839 0.8035850231432
+-3.4641016151378 0.7946545420772
+-3.2475952641916 0.7848462727130
+-3.0310889132455 0.7740184844577
+-2.8145825622994 0.7619955561369
+-2.5980762113533 0.7485565831352
+-2.3815698604072 0.7334187813939
+-2.1650635094611 0.7162125660409
+-1.9485571585150 0.6964428409450
+-1.7320508075689 0.6734267500570
+-1.5155444566228 0.6461911061836
+-1.2990381056767 0.6133094408108
+-1.0825317547305 0.5727502701744
+-0.8660254037844 0.5231578523833
+-0.6495190528383 0.4890452737869
+-0.4330127018922 0.6319359177817
+-0.2165063509461 0.8340367852500
+0.0000000000000 0.0000000070711
+0.2165063509461 0.8340367852500
+0.4330127018922 0.6319359177817
+0.6495190528383 0.4890452737869
+0.8660254037844 0.5231578523833
+1.0825317547305 0.5727502701744
+1.2990381056767 0.6133094408108
+1.5155444566228 0.6461911061836
+1.7320508075689 0.6734267500570
+1.9485571585150 0.6964428409450
+2.1650635094611 0.7162125660409
+2.3815698604072 0.7334187813939
+2.5980762113533 0.7485565831352
+2.8145825622994 0.7619955561369
+3.0310889132455 0.7740184844577
+3.2475952641916 0.7848462727130
+3.4641016151378 0.7946545420772
+3.6806079660839 0.8035850231432
+3.8971143170300 0.8117535880699
+4.1136206679761 0.8192560464056
+4.3301270189222 0.8261724128828
+4.5466333698683 0.8325701064365
+4.7631397208144 0.8385063860414
+4.9796460717605 0.8440302314853
+5.1961524227066 0.8491838137798
diff --git a/test/KS-tilted/alp_average.xg b/test/KS-tilted/alp_average.xg
new file mode 100644
index 0000000..4b7153a
--- /dev/null
+++ b/test/KS-tilted/alp_average.xg
@@ -0,0 +1,6 @@
+"x-label time
+"y-label ADMBASE::alp
+"alp v time
+0.0000000000000 0.7609313476969
+0.0312500000000 0.7609313476969
+0.0625000000000 0.7609313476969
diff --git a/test/KS-tilted/alp_count.xg b/test/KS-tilted/alp_count.xg
new file mode 100644
index 0000000..3ee024b
--- /dev/null
+++ b/test/KS-tilted/alp_count.xg
@@ -0,0 +1,6 @@
+"x-label time
+"y-label ADMBASE::alp
+"alp v time
+0.0000000000000 117649.0000000000000
+0.0312500000000 117649.0000000000000
+0.0625000000000 117649.0000000000000
diff --git a/test/KS-tilted/alp_maximum.xg b/test/KS-tilted/alp_maximum.xg
new file mode 100644
index 0000000..2909907
--- /dev/null
+++ b/test/KS-tilted/alp_maximum.xg
@@ -0,0 +1,6 @@
+"x-label time
+"y-label ADMBASE::alp
+"alp v time
+0.0000000000000 0.9357463935092
+0.0312500000000 0.9357463935092
+0.0625000000000 0.9357463935092
diff --git a/test/KS-tilted/alp_minimum.xg b/test/KS-tilted/alp_minimum.xg
new file mode 100644
index 0000000..b75ae71
--- /dev/null
+++ b/test/KS-tilted/alp_minimum.xg
@@ -0,0 +1,6 @@
+"x-label time
+"y-label ADMBASE::alp
+"alp v time
+0.0000000000000 0.0000000070711
+0.0312500000000 0.0000000070711
+0.0625000000000 0.0000000070711
diff --git a/test/KS-tilted/alp_norm1.xg b/test/KS-tilted/alp_norm1.xg
new file mode 100644
index 0000000..4b7153a
--- /dev/null
+++ b/test/KS-tilted/alp_norm1.xg
@@ -0,0 +1,6 @@
+"x-label time
+"y-label ADMBASE::alp
+"alp v time
+0.0000000000000 0.7609313476969
+0.0312500000000 0.7609313476969
+0.0625000000000 0.7609313476969
diff --git a/test/KS-tilted/alp_norm2.xg b/test/KS-tilted/alp_norm2.xg
new file mode 100644
index 0000000..4cc321b
--- /dev/null
+++ b/test/KS-tilted/alp_norm2.xg
@@ -0,0 +1,6 @@
+"x-label time
+"y-label ADMBASE::alp
+"alp v time
+0.0000000000000 0.7631062272141
+0.0312500000000 0.7631062272141
+0.0625000000000 0.7631062272141
diff --git a/test/KS-tilted/alp_norm_inf.xg b/test/KS-tilted/alp_norm_inf.xg
new file mode 100644
index 0000000..2909907
--- /dev/null
+++ b/test/KS-tilted/alp_norm_inf.xg
@@ -0,0 +1,6 @@
+"x-label time
+"y-label ADMBASE::alp
+"alp v time
+0.0000000000000 0.9357463935092
+0.0312500000000 0.9357463935092
+0.0625000000000 0.9357463935092
diff --git a/test/KS-tilted/alp_x_[24][24].xg b/test/KS-tilted/alp_x_[24][24].xg
new file mode 100644
index 0000000..5648f2a
--- /dev/null
+++ b/test/KS-tilted/alp_x_[24][24].xg
@@ -0,0 +1,158 @@
+"x-label x
+"y-label ADMBASE::alp (y = 0.0000000000000, z = 0.0000000000000), (yi = 24, zi = 24)
+
+
+"Time = 0.0000000000000
+-3.0000000000000 0.7714217473947
+-2.8750000000000 0.7644252735796
+-2.7500000000000 0.7569620121645
+-2.6250000000000 0.7489800394820
+-2.5000000000000 0.7404187147278
+-2.3750000000000 0.7312065852827
+-2.2500000000000 0.7212585990011
+-2.1250000000000 0.7104723181322
+-2.0000000000000 0.6987226553341
+-1.8750000000000 0.6858543519527
+-1.7500000000000 0.6716708780667
+-1.6250000000000 0.6559174093587
+-1.5000000000000 0.6382534733129
+-1.3750000000000 0.6182063870266
+-1.2500000000000 0.5950859896699
+-1.1250000000000 0.5678127800631
+-1.0000000000000 0.5345224838248
+-0.8750000000000 0.4914568834357
+-0.7500000000000 0.4285714285714
+-0.6250000000000 0.2836543144656
+-0.5000000000000 0.0000000070711
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diff --git a/test/KS-tilted/betay_3D_diagonal.xg b/test/KS-tilted/betay_3D_diagonal.xg
new file mode 100644
index 0000000..f38ef94
--- /dev/null
+++ b/test/KS-tilted/betay_3D_diagonal.xg
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diff --git a/test/KS-tilted/betay_average.xg b/test/KS-tilted/betay_average.xg
new file mode 100644
index 0000000..58683e2
--- /dev/null
+++ b/test/KS-tilted/betay_average.xg
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diff --git a/test/KS-tilted/betay_count.xg b/test/KS-tilted/betay_count.xg
new file mode 100644
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--- /dev/null
+++ b/test/KS-tilted/betay_count.xg
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diff --git a/test/KS-tilted/betay_maximum.xg b/test/KS-tilted/betay_maximum.xg
new file mode 100644
index 0000000..49e92f2
--- /dev/null
+++ b/test/KS-tilted/betay_maximum.xg
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diff --git a/test/KS-tilted/betay_minimum.xg b/test/KS-tilted/betay_minimum.xg
new file mode 100644
index 0000000..069311c
--- /dev/null
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diff --git a/test/KS-tilted/betay_norm1.xg b/test/KS-tilted/betay_norm1.xg
new file mode 100644
index 0000000..98c636b
--- /dev/null
+++ b/test/KS-tilted/betay_norm1.xg
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diff --git a/test/KS-tilted/betay_norm2.xg b/test/KS-tilted/betay_norm2.xg
new file mode 100644
index 0000000..64fe328
--- /dev/null
+++ b/test/KS-tilted/betay_norm2.xg
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diff --git a/test/KS-tilted/betay_norm_inf.xg b/test/KS-tilted/betay_norm_inf.xg
new file mode 100644
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--- /dev/null
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diff --git a/test/KS-tilted/betay_x_[24][24].xg b/test/KS-tilted/betay_x_[24][24].xg
new file mode 100644
index 0000000..214e2db
--- /dev/null
+++ b/test/KS-tilted/betay_x_[24][24].xg
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new file mode 100644
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--- /dev/null
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new file mode 100644
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new file mode 100644
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diff --git a/test/KS-tilted/gxx_y_[24][24].xg b/test/KS-tilted/gxx_y_[24][24].xg
new file mode 100644
index 0000000..ccf9523
--- /dev/null
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diff --git a/test/KS-tilted/gxx_z_[24][24].xg b/test/KS-tilted/gxx_z_[24][24].xg
new file mode 100644
index 0000000..00a3d78
--- /dev/null
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diff --git a/test/KS-tilted/gxy_3D_diagonal.xg b/test/KS-tilted/gxy_3D_diagonal.xg
new file mode 100644
index 0000000..669c3e8
--- /dev/null
+++ b/test/KS-tilted/gxy_3D_diagonal.xg
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diff --git a/test/KS-tilted/gxy_average.xg b/test/KS-tilted/gxy_average.xg
new file mode 100644
index 0000000..95fc9a1
--- /dev/null
+++ b/test/KS-tilted/gxy_average.xg
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diff --git a/test/KS-tilted/gxy_count.xg b/test/KS-tilted/gxy_count.xg
new file mode 100644
index 0000000..a1f9fc8
--- /dev/null
+++ b/test/KS-tilted/gxy_count.xg
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diff --git a/test/KS-tilted/gxy_maximum.xg b/test/KS-tilted/gxy_maximum.xg
new file mode 100644
index 0000000..1e47b39
--- /dev/null
+++ b/test/KS-tilted/gxy_maximum.xg
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diff --git a/test/KS-tilted/gxy_minimum.xg b/test/KS-tilted/gxy_minimum.xg
new file mode 100644
index 0000000..7a0c247
--- /dev/null
+++ b/test/KS-tilted/gxy_minimum.xg
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new file mode 100644
index 0000000..623f476
--- /dev/null
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diff --git a/test/KS-tilted/gyy_3D_diagonal.xg b/test/KS-tilted/gyy_3D_diagonal.xg
new file mode 100644
index 0000000..1acc722
--- /dev/null
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new file mode 100644
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index 0000000..4d67c4e
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new file mode 100644
index 0000000..6697506
--- /dev/null
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diff --git a/test/KS-tilted/gyz_average.xg b/test/KS-tilted/gyz_average.xg
new file mode 100644
index 0000000..e68c4dd
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diff --git a/test/KS-tilted/gyz_count.xg b/test/KS-tilted/gyz_count.xg
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index 0000000..4fc01c8
--- /dev/null
+++ b/test/KS-tilted/gzz_3D_diagonal.xg
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diff --git a/test/KS-tilted/gzz_average.xg b/test/KS-tilted/gzz_average.xg
new file mode 100644
index 0000000..b36f664
--- /dev/null
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diff --git a/test/KS-tilted/gzz_count.xg b/test/KS-tilted/gzz_count.xg
new file mode 100644
index 0000000..74a588c
--- /dev/null
+++ b/test/KS-tilted/gzz_count.xg
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diff --git a/test/KS-tilted/gzz_maximum.xg b/test/KS-tilted/gzz_maximum.xg
new file mode 100644
index 0000000..0bf87eb
--- /dev/null
+++ b/test/KS-tilted/gzz_maximum.xg
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diff --git a/test/KS-tilted/gzz_minimum.xg b/test/KS-tilted/gzz_minimum.xg
new file mode 100644
index 0000000..cb70bad
--- /dev/null
+++ b/test/KS-tilted/gzz_minimum.xg
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diff --git a/test/KS-tilted/gzz_norm1.xg b/test/KS-tilted/gzz_norm1.xg
new file mode 100644
index 0000000..b36f664
--- /dev/null
+++ b/test/KS-tilted/gzz_norm1.xg
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diff --git a/test/KS-tilted/gzz_norm2.xg b/test/KS-tilted/gzz_norm2.xg
new file mode 100644
index 0000000..2e88de8
--- /dev/null
+++ b/test/KS-tilted/gzz_norm2.xg
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diff --git a/test/KS-tilted/gzz_norm_inf.xg b/test/KS-tilted/gzz_norm_inf.xg
new file mode 100644
index 0000000..0bf87eb
--- /dev/null
+++ b/test/KS-tilted/gzz_norm_inf.xg
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new file mode 100644
index 0000000..c7f79b4
--- /dev/null
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new file mode 100644
index 0000000..4a0020d
--- /dev/null
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diff --git a/test/KS-tilted/gzz_z_[24][24].xg b/test/KS-tilted/gzz_z_[24][24].xg
new file mode 100644
index 0000000..949a4a7
--- /dev/null
+++ b/test/KS-tilted/gzz_z_[24][24].xg
@@ -0,0 +1,158 @@
+"x-label z
+"y-label ADMBASE::gzz (x = 0.0000000000000, y = 0.0000000000000), (xi = 24, yi = 24)
+
+
+"Time = 0.0000000000000
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diff --git a/test/KS-tilted/h.t0.ah1.gp b/test/KS-tilted/h.t0.ah1.gp
new file mode 100644
index 0000000..1cbaa32
--- /dev/null
+++ b/test/KS-tilted/h.t0.ah1.gp
@@ -0,0 +1,2337 @@
+# N_patches = 6
+# origin = 0 0 0
+
+### +z patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = dsigma = dnu
+# dpy = drho = dmu
+#
+# dpx dpy gridfn global_x global_y global_z
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+-40 -45 1.83376544527667 -0.9357221052 -1.115150181 1.115150181
+-35 -45 1.82859830236920 -0.8113721186 -1.158759474 1.158759474
+-30 -45 1.82423606133886 -0.6894964216 -1.194242834 1.194242834
+-25 -45 1.82064232687980 -0.5701261575 -1.222639490 1.222639490
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+-15 -45 1.81559135102026 -0.3379846540 -1.261375901 1.261375901
+-10 -45 1.81405826743836 -0.2244425999 -1.272877236 1.272877236
+-5 -45 1.81314904171338 -0.1119543117 -1.279643638 1.279643638
+0 -45 1.81284758700942 0.000000000 -1.281876822 1.281876822
+5 -45 1.81314849716270 0.1119542780 -1.279643253 1.279643253
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+25 -45 1.82064052843107 0.5701255944 -1.222638283 1.222638283
+30 -45 1.82423434484690 0.6894957728 -1.194241710 1.194241710
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+45 -45 1.83975585166274 1.062183536 -1.062183536 1.062183536
+
+-45 -40 1.83943163549241 -1.118595906 -0.9386134125 1.118595906
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+-30 -40 1.82159710192381 -0.7368027775 -1.070842038 1.276179846
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+45 -40 1.83943327069281 1.118596901 -0.9386142469 1.118596901
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+-45 -35 1.83977561684829 -1.165842396 -0.8163316339 1.165842396
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+-45 -30 1.84068605736832 -1.205011884 -0.6957139356 1.205011884
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+-45 -25 1.84207605487965 -1.237033159 -0.5768380354 1.237033159
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+
+
+### +x patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = drho = dnu
+# dpy = dsigma = dphi
+#
+# dpx dpy gridfn global_x global_y global_z
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+
+
+### +y patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = 90 - dsigma = 90 - dphi
+# dpy = drho = dmu
+#
+# dpx dpy gridfn global_x global_y global_z
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+
+
+### -x patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = drho = dnu
+# dpy = 180 - dsigma = 180 - dphi
+#
+# dpx dpy gridfn global_x global_y global_z
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+-60 -15 1.86771102758115 -1.575619743 -0.4221860377 0.9096844827
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+-60 -35 1.86102670175535 -1.378113424 -0.9649654080 0.7956541563
+-60 -40 1.86034113842480 -1.303323257 -1.093618064 0.7524740330
+-60 -45 1.86015200426918 -1.217755338 -1.217755338 0.7030713720
+
+-55 45 1.89460683903530 -1.200588244 1.200588244 0.8406609384
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+-55 25 1.88425093041820 -1.441878608 0.6723590369 1.009614270
+-55 20 1.88112715560478 -1.476693443 0.5374724583 1.033991880
+-55 15 1.87794413884694 -1.502553726 0.4026080573 1.052099445
+-55 10 1.87476179537585 -1.519941897 0.2680067655 1.064274774
+-55 5 1.87163284010132 -1.529229766 0.1337902685 1.070778210
+-55 -2.84217e-14 1.86860490598726 -1.530671529 -4.923015109e-16 1.071787743
+-55 -5 1.86572270851754 -1.524400855 -0.1333677935 1.067396970
+-55 -10 1.86303001718460 -1.510430490 -0.2663296479 1.057614815
+-55 -15 1.86057150182880 -1.488653780 -0.3988835783 1.042366599
+-55 -20 1.85839414851374 -1.458847928 -0.5309772221 1.021496316
+-55 -25 1.85654864404054 -1.420680086 -0.6624740039 0.9947709057
+-55 -30 1.85508986727219 -1.373717124 -0.7931159515 0.9618870858
+-55 -35 1.85407698976357 -1.317441800 -0.9224826795 0.9224826795
+-55 -40 1.85357220709429 -1.251277717 -1.049946671 0.8761540900
+-55 -45 1.85363738992384 -1.174626425 -1.174626425 0.8224822774
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+-50 45 1.89165941565116 -1.150356685 1.150356685 0.9652638702
+-50 40 1.88871476400700 -1.217088696 1.021258676 1.021258676
+-50 35 1.88546089714111 -1.272804587 0.8912273664 1.068009859
+-50 30 1.88201519184050 -1.318507729 0.7612407920 1.106359349
+-50 25 1.87847206712427 -1.355130254 0.6319076152 1.137089296
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+-50 15 1.87137763352637 -1.404281000 0.3762759599 1.178331669
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+-50 5 1.86461443619308 -1.425180367 0.1246871256 1.195868320
+-50 -2.84217e-14 1.86145472041064 -1.425957045 -4.586227642e-16 1.196520030
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+-50 -10 1.85574702713962 -1.408791046 -0.2484078715 1.182116047
+-50 -15 1.85326954744186 -1.390692700 -0.3726349858 1.166929731
+-50 -20 1.85109691206599 -1.365923250 -0.4971554054 1.146145695
+-50 -25 1.84927767288620 -1.334069410 -0.6220867824 1.119417150
+-50 -30 1.84786867491173 -1.294585261 -0.7474291492 1.086286015
+-50 -35 1.84693555020959 -1.246797557 -0.8730170479 1.046187370
+-50 -40 1.84655246025862 -1.189919287 -0.9984608351 0.9984608351
+-50 -45 1.84679986082886 -1.123076675 -1.123076675 0.9423732234
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+-45 45 1.88751077761889 -1.089754856 1.089754856 1.089754856
+-45 40 1.88374495769631 -1.145543742 0.9612253312 1.145543742
+-45 35 1.87981577708320 -1.191215336 0.8340979578 1.191215336
+-45 30 1.87583724143790 -1.228023736 0.7089998344 1.228023736
+-45 25 1.87189069549560 -1.257054970 0.5861743593 1.257054970
+-45 20 1.86803359697539 -1.279212742 0.4655953614 1.279212742
+-45 15 1.86430639505819 -1.295220512 0.3470532902 1.295220512
+-45 10 1.86073817335099 -1.305631305 0.2302180260 1.305631305
+-45 5 1.85735126840538 -1.310839693 0.1146836129 1.310839693
+-45 -2.84217e-14 1.85416505312897 -1.311092683 -4.216795677e-16 1.311092683
+-45 -5 1.85119903127132 -1.306497705 -0.1143037382 1.306497705
+-45 -10 1.84847551191332 -1.297026916 -0.2287008401 1.297026916
+-45 -15 1.84602206288444 -1.282517534 -0.3436495376 1.282517534
+-45 -20 1.84387385378613 -1.262668365 -0.4595737008 1.262668365
+-45 -25 1.84207602290336 -1.237033138 -0.5768380254 1.237033138
+-45 -30 1.84068600083746 -1.205011847 -0.6957139143 1.205011847
+-45 -35 1.83977551187410 -1.165842329 -0.8163315873 1.165842329
+-45 -40 1.83943149920647 -1.118595824 -0.9386133429 1.118595824
+-45 -45 1.83975578203722 -1.062183496 -1.062183496 1.062183496
+
+
+### -y patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = 90 + dsigma = 90 + dphi
+# dpy = drho = dmu
+#
+# dpx dpy gridfn global_x global_y global_z
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+-40 -135 1.88644237061642 -0.9626017498 -1.147184094 -1.147184094
+-35 -135 1.88551357726984 -0.8366261435 -1.194825959 -1.194825959
+-30 -135 1.88472421571696 -0.7123587950 -1.233841626 -1.233841626
+-25 -135 1.88406967763545 -0.5899881542 -1.265233680 -1.265233680
+-20 -135 1.88354420409838 -0.4694612805 -1.289834267 -1.289834267
+-15 -135 1.88314218207208 -0.3505596998 -1.308306611 -1.308306611
+-10 -135 1.88285874601072 -0.2329548724 -1.321152732 -1.321152732
+-5 -135 1.88268993443207 -0.1162481687 -1.328722648 -1.328722648
+-2.84217e-14 -135 1.88263321892693 -4.281538801e-16 -1.331222716 -1.331222716
+5 -135 1.88268782099461 0.1162480382 -1.328721157 -1.328721157
+10 -135 1.88285473542847 0.2329543762 -1.321149918 -1.321149918
+15 -135 1.88313665726493 0.3505586713 -1.308302772 -1.308302772
+20 -135 1.88353770984178 0.4694596618 -1.289829820 -1.289829820
+25 -135 1.88406292652003 0.5899860401 -1.265229146 -1.265229146
+30 -135 1.88471805904222 0.7123564680 -1.233837596 -1.233837596
+35 -135 1.88550887972671 0.8366240592 -1.194822983 -1.194822983
+40 -135 1.88643987260009 0.9626004751 -1.147182574 -1.147182574
+45 -135 1.88751075299976 1.089754841 -1.089754841 -1.089754841
+
+-45 -130 1.89165790449777 -1.150355766 -1.150355766 -0.9652630991
+-40 -130 1.89096210137467 -1.022473848 -1.218536881 -1.022473848
+-35 -130 1.89034243585690 -0.8935347921 -1.276099932 -1.070774982
+-30 -130 1.88980478322878 -0.7643915396 -1.323964983 -1.110938529
+-25 -130 1.88935113183774 -0.6355672724 -1.362978414 -1.143674685
+-20 -130 1.88898139480191 -0.5073301700 -1.393878186 -1.169602672
+-15 -130 1.88869496622747 -0.3797579380 -1.417275919 -1.189235701
+-10 -130 1.88849109911467 -0.2527909502 -1.433648720 -1.202974112
+-5 -130 1.88836875454348 -0.1262755814 -1.443336500 -1.211103125
+-2.84217e-14 -130 1.88832720686785 -4.652435721e-16 -1.446542564 -1.213793332
+5 -130 1.88836625395553 0.1262754142 -1.443334589 -1.211101521
+10 -130 1.88848635737889 0.2527903155 -1.433645120 -1.202971092
+15 -130 1.88868849957266 0.3797566378 -1.417271067 -1.189231629
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+25 -130 1.88934360393348 0.6355647401 -1.362972984 -1.143670128
+30 -130 1.88979821682242 0.7643888836 -1.323960383 -1.110934669
+35 -130 1.89033772635186 0.8935325660 -1.276096753 -1.070772315
+40 -130 1.89096015350858 1.022472794 -1.218535626 -1.022472794
+45 -130 1.89165938331284 1.150356665 -1.150356665 -0.9652638537
+
+-45 -125 1.89460459945053 -1.200586824 -1.200586824 -0.8406599447
+-40 -125 1.89423576544553 -1.072980339 -1.278728174 -0.8953751070
+-35 -125 1.89390000532194 -0.9422963346 -1.345738632 -0.9422963346
+-30 -125 1.89360312542778 -0.8095817195 -1.402236671 -0.9818566874
+-25 -125 1.89334810272057 -0.6756051895 -1.448840004 -1.014488693
+-20 -125 1.89313721532204 -0.5409039522 -1.486121395 -1.040593403
+-15 -125 1.89297169433927 -0.4058297799 -1.514577358 -1.060518483
+-10 -125 1.89285256060860 -0.2705929327 -1.534608780 -1.074544636
+-5 -125 1.89278032603330 -0.1353019580 -1.546508457 -1.082876879
+-2.84217e-14 -125 1.89275526560689 -4.986641499e-16 -1.550454345 -1.085639820
+5 -125 1.89277758204360 0.1353017619 -1.546506215 -1.082875309
+10 -125 1.89284743535574 0.2705922000 -1.534604624 -1.074541726
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+
+-45 -120 1.89644553201115 -1.241515029 -1.241515029 -0.7167890361
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+-35 -120 1.89619349962281 -0.9831998285 -1.404154875 -0.8106891953
+-30 -120 1.89608386539040 -0.8479544828 -1.468700247 -0.8479544828
+-25 -120 1.89598781022740 -0.7099594266 -1.522512904 -0.8790232348
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+-15 -120 1.89584205516635 -0.4285449052 -1.599351360 -0.9233859380
+-10 -120 1.89579469492119 -0.2861773871 -1.622992613 -0.9370352219
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+-2.84217e-14 -120 1.89575449875052 -5.280340047e-16 -1.641771555 -0.9478772494
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+-45 -115 1.89728200418783 -1.274106324 -1.274106324 -0.5941255363
+-40 -115 1.89727233341561 -1.148469599 -1.368692771 -0.6382319208
+-35 -115 1.89726255455023 -1.016586124 -1.451835446 -0.6770019870
+-30 -115 1.89725297208058 -0.8796097927 -1.523528852 -0.7104331710
+-25 -115 1.89724356581870 -0.7385620500 -1.583851428 -0.7385620500
+-20 -115 1.89723463895460 -0.5943378020 -1.632929691 -0.7614476200
+-15 -115 1.89722667441198 -0.4477183101 -1.670907481 -0.7791569544
+-10 -115 1.89722033960163 -0.2993893518 -1.697921388 -0.7917537460
+-5 -115 1.89721570796556 -0.1499626956 -1.714081455 -0.7992893090
+-2.84217e-14 -115 1.89721319278040 -5.530202217e-16 -1.719459090 -0.8017969417
+5 -115 1.89721315605047 0.1499624939 -1.714079149 -0.7992882339
+10 -115 1.89721566250507 0.2993886137 -1.697917202 -0.7917517942
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+-45 -110 1.89721132442112 -1.299193390 -1.299193390 -0.4728677223
+-40 -110 1.89718984243162 -1.174685105 -1.399935195 -0.5095347407
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+-15 -110 1.89709829628343 -0.4632123759 -1.728732121 -0.6292070352
+-10 -110 1.89708702655547 -0.3101063081 -1.758700267 -0.6401145482
+-5 -110 1.89707956231208 -0.1554391483 -1.776677595 -0.6466577606
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+-45 -105 1.89632089943209 -1.317462480 -1.317462480 -0.3530130075
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+-45 -100 1.89468535264276 -1.329451153 -1.329451153 -0.2344181078
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+-10 -100 1.89225519771519 -0.3237419108 -1.836031613 -0.3237419108
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+-45 -95 1.89236611384767 -1.335551685 -1.335551685 -0.1168456320
+-40 -95 1.89150862090393 -1.213116874 -1.445736393 -0.1264855449
+-35 -95 1.89067895796674 -1.081674668 -1.544791520 -0.1351517455
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+-10 -95 1.88774242676650 -0.3265930482 -1.852201217 -0.1620466090
+-5 -95 1.88752023653201 -0.1638869530 -1.873236444 -0.1638869530
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+
+
+### -z patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = dsigma = dnu
+# dpy = 180 - drho = 180 - dmu
+#
+# dpx dpy gridfn global_x global_y global_z
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+145 -25 1.86448105465313 0.9990212286 -0.6653045335 -1.426750176
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+180 -25 1.85170737802799 -5.397556946e-16 -0.7825653534 -1.678216816
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+135 -30 1.87583729394692 1.228023770 -0.7089998543 -1.228023770
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+175 -30 1.86035961656969 0.1405517654 -0.9275213076 -1.606514030
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+135 -35 1.87981585032521 1.191215382 -0.8340979903 -1.191215382
+140 -35 1.87748494108659 1.063491919 -0.8874572589 -1.267420315
+145 -35 1.87537432353856 0.9330790148 -0.9330790148 -1.332574935
+150 -35 1.87351553046848 0.8009935684 -0.9714410205 -1.387361557
+155 -35 1.87192811603303 0.6679618754 -1.003011493 -1.432448865
+160 -35 1.87062314221819 0.5344712694 -1.028218180 -1.468447744
+165 -35 1.86960614275534 0.4008204938 -1.047428166 -1.495882448
+170 -35 1.86887955483129 0.2671658692 -1.060935512 -1.515172937
+175 -35 1.86844403678587 0.1335623227 -1.068953866 -1.526624334
+180 -35 1.86829949666394 -4.922210480e-16 -1.071612567 -1.530421352
+185 -35 1.86844567679152 -0.1335624399 -1.068954805 -1.526625674
+190 -35 1.86888257796053 -0.2671663014 -1.060937228 -1.515175388
+195 -35 1.86961008169822 -0.4008213383 -1.047430373 -1.495885599
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+225 -35 1.87981224974724 -1.191213101 -0.8340963927 -1.191213101
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+135 -40 1.88374502872585 1.145543785 -0.9612253674 -1.145543785
+140 -40 1.88208990800866 1.017676509 -1.017676509 -1.212819636
+145 -40 1.88061932172357 0.8889388307 -1.065267373 -1.269536219
+150 -40 1.87934607369258 0.7601611825 -1.104790284 -1.316637790
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+160 -40 1.87740393690894 0.5042207727 -1.162434245 -1.385335187
+165 -40 1.87673216495132 0.3773525900 -1.181703203 -1.408299038
+170 -40 1.87625585841444 0.2511531569 -1.195180230 -1.424360332
+175 -40 1.87597201171479 0.1254466088 -1.203152488 -1.433861300
+180 -40 1.87587834345051 -4.621764375e-16 -1.205791356 -1.437006181
+185 -40 1.87597396162055 -0.1254467392 -1.203153739 -1.433862790
+190 -40 1.87625952685031 -0.2511536479 -1.195182566 -1.424363117
+195 -40 1.87673711367524 -0.3773535850 -1.181706319 -1.408302752
+200 -40 1.87740955294443 -0.5042222810 -1.162437722 -1.385339331
+205 -40 1.87827993768292 -0.6318429839 -1.136972995 -1.354991652
+210 -40 1.87935074552887 -0.7601630721 -1.104793030 -1.316641063
+215 -40 1.88062240111902 -0.8889402863 -1.065269118 -1.269538298
+220 -40 1.88209046695398 -1.017676811 -1.017676811 -1.212819996
+225 -40 1.88374265482225 -1.145542341 -0.9612241561 -1.145542341
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+135 -45 1.88751084682239 1.089754896 -1.089754896 -1.089754896
+140 -45 1.88643998048724 0.9626005302 -1.147182640 -1.147182640
+145 -45 1.88550896105550 0.8366240953 -1.194823034 -1.194823034
+150 -45 1.88471811138177 0.7123564877 -1.233837630 -1.233837630
+155 -45 1.88406295090977 0.5899860477 -1.265229162 -1.265229162
+160 -45 1.88353771675094 0.4694596636 -1.289829825 -1.289829825
+165 -45 1.88313665874498 0.3505586716 -1.308302773 -1.308302773
+170 -45 1.88285473343017 0.2329543759 -1.321149917 -1.321149917
+175 -45 1.88268781969723 0.1162480381 -1.328721156 -1.328721156
+180 -45 1.88263321807441 -4.281538799e-16 -1.331222715 -1.331222715
+185 -45 1.88268993295953 -0.1162481686 -1.328722647 -1.328722647
+190 -45 1.88285874329149 -0.2329548720 -1.321152731 -1.321152731
+195 -45 1.88314218215819 -0.3505596998 -1.308306611 -1.308306611
+200 -45 1.88354420704359 -0.4694612812 -1.289834269 -1.289834269
+205 -45 1.88406969709948 -0.5899881603 -1.265233693 -1.265233693
+210 -45 1.88472426366907 -0.7123588131 -1.233841657 -1.233841657
+215 -45 1.88551365738672 -0.8366261791 -1.194826010 -1.194826010
+220 -45 1.88644246087498 -0.9626017958 -1.147184148 -1.147184148
+225 -45 1.88751037172145 -1.089754621 -1.089754621 -1.089754621
+
+
diff --git a/test/KS-tilted/h.t1.ah1.gp b/test/KS-tilted/h.t1.ah1.gp
new file mode 100644
index 0000000..5272109
--- /dev/null
+++ b/test/KS-tilted/h.t1.ah1.gp
@@ -0,0 +1,2337 @@
+# N_patches = 6
+# origin = 0 0 0
+
+### +z patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = dsigma = dnu
+# dpy = drho = dmu
+#
+# dpx dpy gridfn global_x global_y global_z
+-45 -45 1.83963191932975 -1.062111984 -1.062111984 1.062111984
+-40 -45 1.83364194772965 -0.9356590876 -1.115075079 1.115075079
+-35 -45 1.82847565375891 -0.8113176978 -1.158681753 1.158681753
+-30 -45 1.82411442209835 -0.6894504463 -1.194163202 1.194163202
+-25 -45 1.82052172480133 -0.5700883915 -1.222558501 1.222558501
+-20 -45 1.81765479889428 -0.4530387699 -1.244713791 1.244713791
+-15 -45 1.81547257914480 -0.3379625438 -1.261293385 1.261293385
+-10 -45 1.81394019335102 -0.2244279913 -1.272794387 1.272794387
+-5 -45 1.81303148374545 -0.1119470530 -1.279560670 1.279560670
+0 -45 1.81273034567639 0.000000000 -1.281793920 1.281793920
+5 -45 1.81303135718677 0.1119470451 -1.279560581 1.279560581
+10 -45 1.81393995953738 0.2244279623 -1.272794223 1.272794223
+15 -45 1.81547227307698 0.3379624869 -1.261293172 1.261293172
+20 -45 1.81765446183886 0.4530386859 -1.244713560 1.244713560
+25 -45 1.82052140431247 0.5700882912 -1.222558286 1.222558286
+30 -45 1.82411416753412 0.6894503500 -1.194163036 1.194163036
+35 -45 1.82847551526371 0.8113176364 -1.158681665 1.158681665
+40 -45 1.83364197979893 0.9356591040 -1.115075099 1.115075099
+45 -45 1.83963215216258 1.062112118 -1.062112118 1.062112118
+
+-45 -40 1.83930861576802 -1.118521096 -0.9385506388 1.118521096
+-40 -40 1.83255078331976 -0.9908899015 -0.9908899015 1.180896600
+-35 -40 1.82659640511950 -0.8634030576 -1.034666363 1.233067356
+-30 -40 1.82147634657758 -0.7367539341 -1.070771051 1.276095247
+-25 -40 1.81719248756265 -0.6112935035 -1.099995131 1.310923149
+-20 -40 1.81373034334890 -0.4871197387 -1.123009396 1.338350483
+-15 -40 1.81106862717844 -0.3641496905 -1.140357499 1.359025147
+-10 -40 1.80918570113442 -0.2421752333 -1.152456352 1.373443998
+-5 -40 1.80806368272765 -0.1209055658 -1.159599559 1.381956941
+0 -40 1.80769095647809 0.000000000 -1.161961349 1.384771612
+5 -40 1.80806351570135 0.1209055546 -1.159599452 1.381956813
+10 -40 1.80918538529401 0.2421751910 -1.152456151 1.373443758
+15 -40 1.81106819533453 0.3641496037 -1.140357227 1.359024823
+20 -40 1.81372985239803 0.4871196068 -1.123009092 1.338350120
+25 -40 1.81719202502262 0.6112933479 -1.099994851 1.310922815
+30 -40 1.82147603097907 0.7367538065 -1.070770865 1.276095026
+35 -40 1.82659632458824 0.8634030195 -1.034666318 1.233067301
+40 -40 1.83255098981702 0.9908900131 -0.9908900131 1.180896733
+45 -40 1.83930913462317 1.118521411 -0.9385509035 1.118521411
+
+-45 -35 1.83965375521098 -1.165765174 -0.8162775624 1.165765174
+-40 -35 1.83228327598407 -1.037887663 -0.8660911510 1.236906351
+-35 -35 1.82566394549250 -0.9083459735 -0.9083459735 1.297252491
+-30 -35 1.81987582493766 -0.7780607139 -0.9436281684 1.347640688
+-25 -35 1.81496288469352 -0.6476349182 -0.9724885358 1.388857564
+-20 -35 1.81094472373425 -0.5174200530 -0.9954149746 1.421599912
+-15 -35 1.80782616325567 -0.3875756283 -1.012816550 1.446451937
+-10 -35 1.80560443336966 -0.2581203677 -1.025015154 1.463873349
+-5 -35 1.80427431495124 -0.1289752668 -1.032241784 1.474194046
+0 -35 1.80383142533935 0.000000000 -1.034635201 1.477612200
+5 -35 1.80427410498633 0.1289752518 -1.032241663 1.474193874
+10 -35 1.80560403952655 0.2581203114 -1.025014930 1.463873029
+15 -35 1.80782563317912 0.3875755147 -1.012816253 1.446451513
+20 -35 1.81094415101108 0.5174198893 -0.9954146598 1.421599462
+25 -35 1.81496238376283 0.6476347395 -0.9724882674 1.388857181
+30 -35 1.81987551824422 0.7780605828 -0.9436280094 1.347640461
+35 -35 1.82566400218583 0.9083460017 -0.9083460017 1.297252532
+40 -35 1.83228374611417 1.037887929 -0.8660913732 1.236906668
+45 -35 1.83965454621749 1.165765675 -0.8162779134 1.165765675
+
+-45 -30 1.84056538226631 -1.204932884 -0.6956683247 1.204932884
+-40 -30 1.83274975659767 -1.077398225 -0.7413138227 1.283993205
+-35 -30 1.82561272472819 -0.9466028220 -0.7805134397 1.351888933
+-30 -30 1.81927823182646 -0.8136059593 -0.8136059593 1.409206859
+-25 -30 1.81383145857356 -0.6791956865 -0.8409336745 1.456539850
+-20 -30 1.80932794736910 -0.5439320702 -0.8628159601 1.494441081
+-15 -30 1.80580203060942 -0.4081918417 -0.8795311811 1.523392693
+-10 -30 1.80327357112336 -0.2722109732 -0.8913047681 1.543785143
+-5 -30 1.80175317842717 -0.1361239987 -0.8983018386 1.555904425
+0 -30 1.80124581575259 0.000000000 -0.9006229079 1.559924635
+5 -30 1.80175291801170 0.1361239790 -0.8983017088 1.555904200
+10 -30 1.80327309142715 0.2722109008 -0.8913045310 1.543784733
+15 -30 1.80580140891866 0.4081917012 -0.8795308783 1.523392168
+20 -30 1.80932729174225 0.5439318731 -0.8628156475 1.494440539
+25 -30 1.81383089661357 0.6791954760 -0.8409334140 1.456539399
+30 -30 1.81927794669923 0.8136058318 -0.8136058318 1.409206638
+35 -30 1.82561292855118 0.9466029277 -0.7805135268 1.351889084
+40 -30 1.83275043527676 1.077398624 -0.7413140972 1.283993681
+45 -30 1.84056638591116 1.204933541 -0.6956687041 1.204933541
+
+-45 -25 1.84195647488741 -1.236952856 -0.5768005895 1.236952856
+-40 -25 1.83386554173420 -1.110087775 -0.6169022267 1.322951095
+-35 -25 1.82637144783298 -0.9786014415 -0.6517058465 1.397587698
+-30 -25 1.81963386703553 -0.8436238035 -0.6813684191 1.461199290
+-25 -25 1.81377443125974 -0.7060690501 -0.7060690501 1.514169964
+-20 -25 1.80888290430466 -0.5666602683 -0.7259880006 1.556886292
+-15 -25 1.80502315933361 -0.4259596017 -0.7412906251 1.589702876
+-10 -25 1.80223888194156 -0.2844008781 -0.7521157960 1.612917530
+-5 -25 1.80055800198805 -0.1423225258 -0.7585678082 1.626753914
+0 -25 1.79999594987243 0.000000000 -0.7607111595 1.631350346
+5 -25 1.80055766651125 0.1423224993 -0.7585676668 1.626753611
+10 -25 1.80223826577723 0.2844007809 -0.7521155389 1.612916978
+15 -25 1.80502236308323 0.4259594138 -0.7412902981 1.589702174
+20 -25 1.80888206056165 0.5666600039 -0.7259876620 1.556885565
+25 -25 1.81377372186203 0.7060687739 -0.7060687739 1.514169372
+30 -25 1.81963352025576 0.8436236428 -0.6813682893 1.461199012
+35 -25 1.82637168866806 0.9786015705 -0.6517059325 1.397587882
+40 -25 1.83386630208356 1.110088236 -0.6169024825 1.322951643
+45 -25 1.84195763734030 1.236953637 -0.5768009535 1.236953637
+
+-45 -20 1.84375519193873 -1.262587107 -0.4595441251 1.262587107
+-40 -20 1.83555413731704 -1.136522059 -0.4929810294 1.354454246
+-35 -20 1.82786852060427 -1.004717413 -0.5222554915 1.434885170
+-30 -20 1.82088393644863 -0.8683266758 -0.5474061076 1.503985920
+-25 -20 1.81475127931718 -0.7283432497 -0.5684986266 1.561937140
+-20 -20 1.80958939915342 -0.5856113178 -0.5856113178 1.608953872
+-15 -20 1.80548895758859 -0.4408442258 -0.5988231376 1.645253049
+-10 -20 1.80251585333551 -0.2946472822 -0.6082043707 1.671027775
+-5 -20 1.80071474660896 -0.1475433989 -0.6138098731 1.686428766
+0 -20 1.80011141911070 0.000000000 -0.6156743656 1.691551417
+5 -20 1.80071429641592 0.1475433620 -0.6138097197 1.686428345
+10 -20 1.80251502864631 0.2946471474 -0.6082040924 1.671027010
+15 -20 1.80548790059607 0.4408439677 -0.5988227870 1.645252086
+20 -20 1.80958829340993 0.5856109599 -0.5856109599 1.608952889
+25 -20 1.81475034471664 0.7283428746 -0.5684983338 1.561936335
+30 -20 1.82088348386664 0.8683264599 -0.5474059716 1.503985546
+35 -20 1.82786869248605 1.004717507 -0.5222555406 1.434885305
+40 -20 1.83555491820062 1.136522542 -0.4929812391 1.354454823
+45 -20 1.84375637711068 1.262587918 -0.4595444205 1.262587918
+
+-45 -15 1.84590403111975 -1.282435532 -0.3436275652 1.282435532
+-40 -15 1.83774904202973 -1.157157090 -0.3695142939 1.379046119
+-35 -15 1.83003549936707 -1.025259108 -0.3923370360 1.464221752
+-30 -15 1.82296503799890 -0.8878905693 -0.4120714473 1.537871578
+-25 -15 1.81670886421140 -0.7460897344 -0.4287172606 1.599994599
+-20 -15 1.81140784780501 -0.6007862448 -0.4422894346 1.650646642
+-15 -15 1.80717372780410 -0.4528105221 -0.4528105221 1.689911875
+-10 -15 1.80409075665384 -0.3029084941 -0.4603044074 1.717879436
+-5 -15 1.80221770258461 -0.1517600846 -0.4647915566 1.734625704
+0 -15 1.80158931793302 0.000000000 -0.4662856269 1.740201651
+5 -15 1.80221710928362 0.1517600346 -0.4647914036 1.734625133
+10 -15 1.80408968190182 0.3029083136 -0.4603041332 1.717878412
+15 -15 1.80717238569548 0.4528101858 -0.4528101858 1.689910620
+20 -15 1.81140646511958 0.6007857862 -0.4422890970 1.650645382
+25 -15 1.81670773967533 0.7460892726 -0.4287169953 1.599993608
+30 -15 1.82296443018217 0.8878902732 -0.4120713099 1.537871065
+35 -15 1.83003554210121 1.025259132 -0.3923370452 1.464221786
+40 -15 1.83774970325085 1.157157506 -0.3695144268 1.379046615
+45 -15 1.84590507339711 1.282436256 -0.3436277592 1.282436256
+
+-45 -10 1.84835779185455 -1.296944315 -0.2286862753 1.296944315
+-40 -10 1.84039341946794 -1.172335756 -0.2463526577 1.397135349
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+
+
+### +x patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = drho = dnu
+# dpy = dsigma = dphi
+#
+# dpx dpy gridfn global_x global_y global_z
+45 -45 1.83963200235974 1.062112032 -1.062112032 1.062112032
+45 -40 1.83930900068703 1.118521330 -0.9385508352 1.118521330
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+
+
+### +y patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = 90 - dsigma = 90 - dphi
+# dpy = drho = dmu
+#
+# dpx dpy gridfn global_x global_y global_z
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+
+
+### -x patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = drho = dnu
+# dpy = 180 - dsigma = 180 - dphi
+#
+# dpx dpy gridfn global_x global_y global_z
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+-60 45 1.89632115879258 -1.241433607 1.241433607 0.7167420274
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+-55 45 1.89447878029664 -1.200507094 1.200507094 0.8406041171
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+-50 45 1.89153102905972 -1.150278611 1.150278611 0.9651983579
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+-50 -45 1.84667510153349 -1.123000806 -1.123000806 0.9423095620
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+-45 45 1.88738289871747 -1.089681025 1.089681025 1.089681025
+-45 40 1.88361707232698 -1.145465972 0.9611600746 1.145465972
+-45 35 1.87968867589340 -1.191134793 0.8340415614 1.191134793
+-45 30 1.87571142173908 -1.227941367 0.7089522790 1.227941367
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+-45 15 1.86418518184349 -1.295136299 0.3470307255 1.295136299
+-45 10 1.86061825938303 -1.305547165 0.2302031897 1.305547165
+-45 5 1.85723239055343 -1.310755794 0.1146762727 1.310755794
+-45 -2.84217e-14 1.85404690283758 -1.311009138 -4.216526976e-16 1.311009138
+-45 -5 1.85108127217894 -1.306414596 -0.1142964670 1.306414596
+-45 -10 1.84835779211613 -1.296944316 -0.2286862753 1.296944316
+-45 -15 1.84590402914492 -1.282435531 -0.3436275648 1.282435531
+-45 -20 1.84375518029822 -1.262587099 -0.4595441222 1.262587099
+-45 -25 1.84195644276682 -1.236952834 -0.5768005794 1.236952834
+-45 -30 1.84056532574500 -1.204932847 -0.6956683034 1.204932847
+-45 -35 1.83965365023296 -1.165765107 -0.8162775158 1.165765107
+-45 -40 1.83930847956883 -1.118521013 -0.9385505693 1.118521013
+-45 -45 1.83963178683818 -1.062111907 -1.062111907 1.062111907
+
+
+### -y patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = 90 + dsigma = 90 + dphi
+# dpy = drho = dmu
+#
+# dpx dpy gridfn global_x global_y global_z
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+-35 -135 1.88538596242418 -0.8365695192 -1.194745091 -1.194745091
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+-5 -135 1.88256909641992 -0.1162407075 -1.328637366 -1.328637366
+-2.84217e-14 -135 1.88251325192330 -4.281265969e-16 -1.331137886 -1.331137886
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+-45 -130 1.89153121703593 -1.150278725 -1.150278725 -0.9651984538
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+-10 -130 1.88836899017785 -0.2527746049 -1.433556021 -1.202896328
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+-2.84217e-14 -130 1.88820752545372 -4.652140851e-16 -1.446450882 -1.213716402
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+-45 -125 1.89447887192483 -1.200507152 -1.200507152 -0.8406041578
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+-45 -120 1.89632112978089 -1.241433588 -1.241433588 -0.7167420165
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+-45 -115 1.89715904882925 -1.274023754 -1.274023754 -0.5940870333
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+-25 -115 1.89712035199585 -0.7385140852 -1.583748567 -0.7385140852
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+-15 -115 1.89710823887082 -0.4476903610 -1.670803173 -0.7791083150
+-10 -115 1.89710450846597 -0.2993710731 -1.697817724 -0.7917054070
+-5 -115 1.89710223778259 -0.1499537265 -1.713978937 -0.7992415045
+-2.84217e-14 -115 1.89710158788086 -5.529876899e-16 -1.719357942 -0.8017497754
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+-45 -110 1.89708971888481 -1.299110115 -1.299110115 -0.4728374129
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+-45 -105 1.89620036064922 -1.317378736 -1.317378736 -0.3529905683
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+-45 -100 1.89456545177549 -1.329367022 -1.329367022 -0.2344032732
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+
+
+### -z patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = dsigma = dnu
+# dpy = 180 - drho = 180 - dmu
+#
+# dpx dpy gridfn global_x global_y global_z
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+135 -35 1.87968874903699 1.191134840 -0.8340415938 -1.191134840
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+180 -35 1.86818260010353 -4.921902505e-16 -1.071545518 -1.530325596
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+135 -45 1.88738296770757 1.089681064 -1.089681064 -1.089681064
+140 -45 1.88631379784351 0.9625361425 -1.147105906 -1.147105906
+145 -45 1.88538466248148 0.8365689424 -1.194744268 -1.194744268
+150 -45 1.88459561019496 0.7123101866 -1.233757434 -1.233757434
+155 -45 1.88394195371382 0.5899481580 -1.265147908 -1.265147908
+160 -45 1.88341779089682 0.4694297728 -1.289747701 -1.289747701
+165 -45 1.88301733970591 0.3505364595 -1.308219877 -1.308219877
+170 -45 1.88273557778703 0.2329396335 -1.321066309 -1.321066309
+175 -45 1.88256843153428 0.1162406664 -1.328636897 -1.328636897
+180 -45 1.88251325107206 -4.281265967e-16 -1.331137886 -1.331137886
+185 -45 1.88256909495520 -0.1162407074 -1.328637365 -1.328637365
+190 -45 1.88273680366637 -0.2329397852 -1.321067169 -1.321067169
+195 -45 1.88301898337630 -0.3505367655 -1.308221019 -1.308221019
+200 -45 1.88341967983061 -0.4694302436 -1.289748994 -1.289748994
+205 -45 1.88394388774091 -0.5899487636 -1.265149206 -1.265149206
+210 -45 1.88459736460389 -0.7123108497 -1.233758583 -1.233758583
+215 -45 1.88538604244203 -0.8365695547 -1.194745142 -1.194745142
+220 -45 1.88631472079056 -0.9625366134 -1.147106467 -1.147106467
+225 -45 1.88738333966652 -1.089681279 -1.089681279 -1.089681279
+
+
diff --git a/test/KS-tilted/h.t2.ah1.gp b/test/KS-tilted/h.t2.ah1.gp
new file mode 100644
index 0000000..e90c5bd
--- /dev/null
+++ b/test/KS-tilted/h.t2.ah1.gp
@@ -0,0 +1,2337 @@
+# N_patches = 6
+# origin = 0 0 0
+
+### +z patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = dsigma = dnu
+# dpy = drho = dmu
+#
+# dpx dpy gridfn global_x global_y global_z
+-45 -45 1.83951245719592 -1.062043012 -1.062043012 1.062043012
+-40 -45 1.83352303858681 -0.9355984114 -1.115002768 1.115002768
+-35 -45 1.82835760060501 -0.8112653162 -1.158606944 1.158606944
+-30 -45 1.82399734918616 -0.6894061969 -1.194086560 1.194086560
+-25 -45 1.82040563611223 -0.5700520389 -1.222480542 1.222480542
+-20 -45 1.81753961965833 -0.4530100623 -1.244634917 1.244634917
+-15 -45 1.81535818556651 -0.3379412487 -1.261213910 1.261213910
+-10 -45 1.81382643169364 -0.2244139162 -1.272714563 1.272714563
+-5 -45 1.81291818137728 -0.1119400570 -1.279480706 1.279480706
+0 -45 1.81261731629151 0.000000000 -1.281713996 1.281713996
+5 -45 1.81291840180820 0.1119400706 -1.279480862 1.279480862
+10 -45 1.81382686631158 0.2244139700 -1.272714868 1.272714868
+15 -45 1.81535882401949 0.3379413676 -1.261214354 1.261214354
+20 -45 1.81754042867544 0.4530102639 -1.244635471 1.244635471
+25 -45 1.82040657067291 0.5700523315 -1.222481170 1.222481170
+30 -45 1.82399834686231 0.6894065739 -1.194087213 1.194087213
+35 -45 1.82835857423116 0.8112657482 -1.158607561 1.158607561
+40 -45 1.83352387666527 0.9355988391 -1.115003278 1.115003278
+45 -45 1.83951299270630 1.062043322 -1.062043322 1.062043322
+
+-45 -40 1.83919002101130 -1.118448976 -0.9384901230 1.118448976
+-40 -40 1.83243266749214 -0.9908260343 -0.9908260343 1.180820486
+-35 -40 1.82647912933612 -0.8633476232 -1.034599933 1.232988187
+-30 -40 1.82136007163756 -0.7367069031 -1.070702698 1.276013786
+-25 -40 1.81707722998183 -0.6112547315 -1.099925362 1.310840002
+-20 -40 1.81361602097456 -0.4870890347 -1.122938611 1.338266124
+-15 -40 1.81095509416918 -0.3641268626 -1.140286012 1.358939951
+-10 -40 1.80907277244590 -0.2421601168 -1.152384416 1.373358268
+-5 -40 1.80795114953747 -0.1208980407 -1.159527386 1.381870928
+0 -40 1.80757859445894 0.000000000 -1.161889124 1.384685538
+5 -40 1.80795108798321 0.1208980366 -1.159527347 1.381870881
+10 -40 1.80907265197801 0.2421601007 -1.152384339 1.373358176
+15 -40 1.81095491063430 0.3641268257 -1.140285897 1.358939814
+20 -40 1.81361578128868 0.4870889704 -1.122938463 1.338265947
+25 -40 1.81707696406021 0.6112546421 -1.099925201 1.310839810
+30 -40 1.82135982770643 0.7367068044 -1.070702554 1.276013615
+35 -40 1.82647890755464 0.8633475184 -1.034599808 1.232988037
+40 -40 1.83243241171011 0.9908258960 -0.9908258960 1.180820321
+45 -40 1.83918962836784 1.118448737 -0.9384899226 1.118448737
+
+-45 -35 1.83953620867581 -1.165690686 -0.8162254055 1.165690686
+-40 -35 1.83216621675755 -1.037821355 -0.8660358189 1.236827329
+-35 -35 1.82554778052207 -0.9082881765 -0.9082881765 1.297169949
+-30 -35 1.81976074278861 -0.7780115122 -0.9435684969 1.347555468
+-25 -35 1.81484890628848 -0.6475942472 -0.9724274642 1.388770345
+-20 -35 1.81083174979705 -0.5173877742 -0.9953528767 1.421511227
+-15 -35 1.80771401508941 -0.3875515852 -1.012753720 1.446362206
+-10 -35 1.80549288291309 -0.2581044210 -1.024951828 1.463782910
+-5 -35 1.80416310537465 -0.1289673172 -1.032178160 1.474103181
+0 -35 1.80372028319575 0.000000000 -1.034571452 1.477521157
+5 -35 1.80416274643540 0.1289672916 -1.032177954 1.474102888
+10 -35 1.80549219217781 0.2581043222 -1.024951436 1.463782350
+15 -35 1.80771302329585 0.3875513725 -1.012753164 1.446361413
+20 -35 1.81083053896646 0.5173874283 -0.9953522111 1.421510276
+25 -35 1.81484758008587 0.6475937739 -0.9724267536 1.388769330
+30 -35 1.81975940757169 0.7780109414 -0.9435678046 1.347554479
+35 -35 1.82554657770554 0.9082875780 -0.9082875780 1.297169094
+40 -35 1.83216515406141 1.037820753 -0.8660353166 1.236826611
+45 -35 1.83953513886421 1.165690008 -0.8162249308 1.165690008
+
+-45 -30 1.84044892355400 -1.204856644 -0.6956243075 1.204856644
+-40 -30 1.83263386779596 -1.077330099 -0.7412669478 1.283912016
+-35 -30 1.82549785012178 -0.9465432581 -0.7804643267 1.351803867
+-30 -30 1.81916458101088 -0.8135551331 -0.8135551331 1.409118825
+-25 -30 1.81371905062500 -0.6791535949 -0.8408815596 1.456449584
+-20 -30 1.80921665827100 -0.5438986137 -0.8627628896 1.494349160
+-15 -30 1.80569163897729 -0.4081668883 -0.8794774139 1.523299565
+-10 -30 1.80316379481500 -0.2721944020 -0.8912505089 1.543691164
+-5 -30 1.80164370109693 -0.1361157276 -0.8982472564 1.555809886
+0 -30 1.80113630349701 0.000000000 -0.9005681517 1.559829795
+5 -30 1.80164303759770 0.1361156775 -0.8982469256 1.555809313
+10 -30 1.80316252367503 0.2721942102 -0.8912498806 1.543690075
+15 -30 1.80568985667699 0.4081664854 -0.8794765458 1.523298061
+20 -30 1.80921450952409 0.5438979677 -0.8627618649 1.494347385
+25 -30 1.81371670909980 0.6791527181 -0.8408804740 1.456447704
+30 -30 1.81916227719898 0.8135541028 -0.8135541028 1.409117041
+35 -30 1.82549583573069 0.9465422137 -0.7804634655 1.351802376
+40 -30 1.83263215677698 1.077329093 -0.7412662557 1.283910817
+45 -30 1.84044738293918 1.204855635 -0.6956237252 1.204855635
+
+-45 -25 1.84184103264373 -1.236875331 -0.5767644392 1.236875331
+-40 -25 1.83375081204196 -1.110018327 -0.6168636323 1.322868328
+-35 -25 1.82625790711150 -0.9785406044 -0.6516653317 1.397500814
+-30 -25 1.81952174187427 -0.8435718197 -0.6813264334 1.461109252
+-25 -25 1.81366373405331 -0.7060259577 -0.7060259577 1.514077552
+-20 -25 1.80877348100494 -0.5666259897 -0.7259440840 1.556792112
+-15 -25 1.80491473874680 -0.4259340160 -0.7412460987 1.589607388
+-10 -25 1.80213111868684 -0.2843838726 -0.7520708240 1.612821087
+-5 -25 1.80045051013686 -0.1423140293 -0.7585225223 1.626656798
+0 -25 1.79988832436417 0.000000000 -0.7606656750 1.631252804
+5 -25 1.80044952119770 0.1423139511 -0.7585221056 1.626655905
+10 -25 1.80212922984840 0.2843835746 -0.7520700357 1.612819396
+15 -25 1.80491211479868 0.4259333968 -0.7412450211 1.589605077
+20 -25 1.80877034710324 0.5666250080 -0.7259428262 1.556789415
+25 -25 1.81366038258152 0.7060246530 -0.7060246530 1.514074754
+30 -25 1.81951851819572 0.8435703252 -0.6813252263 1.461106663
+35 -25 1.82625514791409 0.9785391260 -0.6516643471 1.397498702
+40 -25 1.83374854806538 1.110016956 -0.6168628707 1.322866695
+45 -25 1.84183923035931 1.236874121 -0.5767638749 1.236874121
+
+-45 -20 1.84364060312021 -1.262508637 -0.4595155645 1.262508637
+-40 -20 1.83544044749958 -1.136451665 -0.4929504953 1.354370355
+-35 -20 1.82775623434242 -1.004655693 -0.5222234092 1.434797025
+-30 -20 1.82077329540435 -0.8682739143 -0.5473728460 1.503894534
+-25 -20 1.81464228758175 -0.7282995063 -0.5684644833 1.561843332
+-20 -20 1.80948186982187 -0.5855765196 -0.5855765196 1.608858265
+-15 -20 1.80538256481087 -0.4408182480 -0.5987878505 1.645156098
+-10 -20 1.80241018191708 -0.2946300087 -0.6081687150 1.670929812
+-5 -20 1.80060933277871 -0.1475347617 -0.6137739407 1.686330043
+0 -20 1.80000578510007 0.000000000 -0.6156382366 1.691452154
+5 -20 1.80060799108734 0.1475346518 -0.6137734834 1.686328786
+10 -20 1.80240763330297 0.2946295921 -0.6081678551 1.670927449
+15 -20 1.80537906628387 0.4408173937 -0.5987866901 1.645152910
+20 -20 1.80947775900171 0.5855751893 -0.5855751893 1.608854610
+25 -20 1.81463796469762 0.7282977714 -0.5684631291 1.561839611
+30 -20 1.82076926231331 0.8682719910 -0.5473716335 1.503891203
+35 -20 1.82775281847558 1.004653815 -0.5222224333 1.434794343
+40 -20 1.83543780081399 1.136450026 -0.4929497845 1.354368402
+45 -20 1.84363866558441 1.262507311 -0.4595150816 1.262507311
+
+-45 -15 1.84579006152510 -1.282356352 -0.3436063490 1.282356352
+-40 -15 1.83763617835140 -1.157086024 -0.3694916005 1.378961426
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+
+
+### +x patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = drho = dnu
+# dpy = dsigma = dphi
+#
+# dpx dpy gridfn global_x global_y global_z
+45 -45 1.83951284314107 1.062043235 -1.062043235 1.062043235
+45 -40 1.83918949446211 1.118448655 -0.9384898543 1.118448655
+45 -35 1.83953503839020 1.165689944 -0.8162248862 1.165689944
+45 -30 1.84044732538544 1.204855597 -0.6956237034 1.204855597
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+
+
+### +y patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = 90 - dsigma = 90 - dphi
+# dpy = drho = dmu
+#
+# dpx dpy gridfn global_x global_y global_z
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+
+
+### -x patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = drho = dnu
+# dpy = 180 - dsigma = 180 - dphi
+#
+# dpx dpy gridfn global_x global_y global_z
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+-65 45 1.89703761137099 -1.273942204 1.273942204 0.5940490057
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+-60 45 1.89619831541874 -1.241353188 1.241353188 0.7166955970
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+-55 45 1.89435499491989 -1.200428653 1.200428653 0.8405491920
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+-50 45 1.89140692910343 -1.150203143 1.150203143 0.9651350329
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+-50 -45 1.84655487308214 -1.122927692 -1.122927692 0.9422482126
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+-45 45 1.88725931900735 -1.089609676 1.089609676 1.089609676
+-45 40 1.88349362011197 -1.145390898 0.9610970802 1.145390898
+-45 35 1.87956609475554 -1.191057115 0.8339871706 1.191057115
+-45 30 1.87559015861411 -1.227861982 0.7089064459 1.227861982
+-45 25 1.87164666399837 -1.256891093 0.5860979419 1.256891093
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+-45 15 1.86406840251161 -1.295055167 0.3470089862 1.295055167
+-45 10 1.86050269714630 -1.305466078 0.2301888919 1.305466078
+-45 5 1.85711777964928 -1.310674907 0.1146691959 1.310674907
+-45 -2.84217e-14 1.85393294112320 -1.310928555 -4.216267801e-16 1.310928555
+-45 -5 1.85096763724532 -1.306334397 -0.1142894505 1.306334397
+-45 -10 1.84824415228020 -1.296864577 -0.2286722153 1.296864577
+-45 -15 1.84579005938559 -1.282356351 -0.3436063486 1.282356351
+-45 -20 1.84364059167316 -1.262508630 -0.4595155617 1.262508630
+-45 -25 1.84184100036950 -1.236875310 -0.5767644291 1.236875310
+-45 -30 1.84044886703198 -1.204856607 -0.6956242861 1.204856607
+-45 -35 1.83953610370763 -1.165690619 -0.8162253589 1.165690619
+-45 -40 1.83918988491296 -1.118448893 -0.9384900535 1.118448893
+-45 -45 1.83951232479542 -1.062042936 -1.062042936 1.062042936
+
+
+### -y patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = 90 + dsigma = 90 + dphi
+# dpy = drho = dmu
+#
+# dpx dpy gridfn global_x global_y global_z
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+-35 -135 1.88526294959409 -0.8365149369 -1.194667140 -1.194667140
+-30 -135 1.88447508616399 -0.7122646328 -1.233678533 -1.233678533
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+-10 -135 1.88261941431942 -0.2329252613 -1.320984800 -1.320984800
+-5 -135 1.88245271342620 -0.1162335213 -1.328555228 -1.328555228
+-2.84217e-14 -135 1.88239763776097 -4.281003036e-16 -1.331056135 -1.331056135
+5 -135 1.88245329351877 0.1162335571 -1.328555637 -1.328555637
+10 -135 1.88262057496460 0.2329254049 -1.320985614 -1.320985614
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+40 -135 1.88619167436881 0.9624738261 -1.147031640 -1.147031640
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+-45 -130 1.89140875792148 -1.150204255 -1.150204255 -0.9651359661
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+-10 -130 1.88825142482903 -0.2527588677 -1.433466771 -1.202821439
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+45 -130 1.89140689696688 1.150203123 -1.150203123 -0.9651350165
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+-45 -125 1.89435728670216 -1.200430105 -1.200430105 -0.8405502089
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+-10 -125 1.89261501528787 -0.2705589744 -1.534416193 -1.074409785
+-5 -125 1.89254596016899 -0.1352852048 -1.546316967 -1.082742797
+-2.84217e-14 -125 1.89252341277987 -4.986030661e-16 -1.550264422 -1.085506835
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+-45 -120 1.89620080811769 -1.241354819 -1.241354819 -0.7166965392
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+-45 -115 1.89704013669630 -1.273943900 -1.273943900 -0.5940497965
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+-15 -115 1.89699435315887 -0.4476634856 -1.670702873 -0.7790615442
+-10 -115 1.89699315087042 -0.2993535004 -1.697718065 -0.7916589349
+-5 -115 1.89699312719641 -0.1499451021 -1.713880359 -0.7991955366
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+-45 -110 1.89697213915322 -1.299029598 -1.299029598 -0.4728081069
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+-10 -110 1.89686660269314 -0.3100702766 -1.758495922 -0.6400401728
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+-45 -105 1.89608384389920 -1.317297786 -1.317297786 -0.3529688780
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+35 -45 1.82835853742444 0.8112657319 -1.158607538 1.158607538
+40 -45 1.83352383389987 0.9355988173 -1.115003252 1.115003252
+45 -45 1.83951294176552 1.062043292 -1.062043292 1.062043292
+
+
+### -z patch
+# N_rho = 19
+# N_sigma = 19
+# ghosted_gfn=-6
+# dpx = dsigma = dnu
+# dpy = 180 - drho = 180 - dmu
+#
+# dpx dpy gridfn global_x global_y global_z
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diff --git a/test/KS-tilted/ham_3D_diagonal.xg b/test/KS-tilted/ham_3D_diagonal.xg
new file mode 100644
index 0000000..7063be3
--- /dev/null
+++ b/test/KS-tilted/ham_3D_diagonal.xg
@@ -0,0 +1,158 @@
+"x-label diagonal
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+
+
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diff --git a/test/KS-tilted/ham_average.xg b/test/KS-tilted/ham_average.xg
new file mode 100644
index 0000000..8258ae7
--- /dev/null
+++ b/test/KS-tilted/ham_average.xg
@@ -0,0 +1,6 @@
+"x-label time
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diff --git a/test/KS-tilted/ham_count.xg b/test/KS-tilted/ham_count.xg
new file mode 100644
index 0000000..d175bdc
--- /dev/null
+++ b/test/KS-tilted/ham_count.xg
@@ -0,0 +1,6 @@
+"x-label time
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+"ham v time
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+0.0312500000000 117649.0000000000000
+0.0625000000000 117649.0000000000000
diff --git a/test/KS-tilted/ham_maximum.xg b/test/KS-tilted/ham_maximum.xg
new file mode 100644
index 0000000..dad14db
--- /dev/null
+++ b/test/KS-tilted/ham_maximum.xg
@@ -0,0 +1,6 @@
+"x-label time
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+"ham v time
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diff --git a/test/KS-tilted/ham_minimum.xg b/test/KS-tilted/ham_minimum.xg
new file mode 100644
index 0000000..fd57eb0
--- /dev/null
+++ b/test/KS-tilted/ham_minimum.xg
@@ -0,0 +1,6 @@
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diff --git a/test/KS-tilted/ham_norm1.xg b/test/KS-tilted/ham_norm1.xg
new file mode 100644
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new file mode 100644
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diff --git a/test/KS-tilted/kxy_3D_diagonal.xg b/test/KS-tilted/kxy_3D_diagonal.xg
new file mode 100644
index 0000000..47b7916
--- /dev/null
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index 0000000..bb737ae
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diff --git a/test/KS-tilted/kxy_maximum.xg b/test/KS-tilted/kxy_maximum.xg
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diff --git a/test/KS-tilted/kxy_norm1.xg b/test/KS-tilted/kxy_norm1.xg
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diff --git a/test/KS-tilted/kxy_norm2.xg b/test/KS-tilted/kxy_norm2.xg
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new file mode 100644
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--- /dev/null
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new file mode 100644
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new file mode 100644
index 0000000..51a8886
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new file mode 100644
index 0000000..a102630
--- /dev/null
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diff --git a/test/KS-tilted/momy_3D_diagonal.xg b/test/KS-tilted/momy_3D_diagonal.xg
new file mode 100644
index 0000000..052e304
--- /dev/null
+++ b/test/KS-tilted/momy_3D_diagonal.xg
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diff --git a/test/KS-tilted/momy_average.xg b/test/KS-tilted/momy_average.xg
new file mode 100644
index 0000000..662fdb7
--- /dev/null
+++ b/test/KS-tilted/momy_average.xg
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diff --git a/test/KS-tilted/momy_count.xg b/test/KS-tilted/momy_count.xg
new file mode 100644
index 0000000..1badabc
--- /dev/null
+++ b/test/KS-tilted/momy_count.xg
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diff --git a/test/KS-tilted/momy_maximum.xg b/test/KS-tilted/momy_maximum.xg
new file mode 100644
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--- /dev/null
+++ b/test/KS-tilted/momy_maximum.xg
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diff --git a/test/KS-tilted/momy_minimum.xg b/test/KS-tilted/momy_minimum.xg
new file mode 100644
index 0000000..6cff74b
--- /dev/null
+++ b/test/KS-tilted/momy_minimum.xg
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diff --git a/test/KS-tilted/momy_norm1.xg b/test/KS-tilted/momy_norm1.xg
new file mode 100644
index 0000000..35de6ba
--- /dev/null
+++ b/test/KS-tilted/momy_norm1.xg
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diff --git a/test/KS-tilted/momy_norm2.xg b/test/KS-tilted/momy_norm2.xg
new file mode 100644
index 0000000..58e63fb
--- /dev/null
+++ b/test/KS-tilted/momy_norm2.xg
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diff --git a/test/KS-tilted/momy_norm_inf.xg b/test/KS-tilted/momy_norm_inf.xg
new file mode 100644
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+++ b/test/KS-tilted/momy_norm_inf.xg
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diff --git a/test/KS-tilted/momy_x_[24][24].xg b/test/KS-tilted/momy_x_[24][24].xg
new file mode 100644
index 0000000..f45f283
--- /dev/null
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