From 9e84f6fafad9b03f5dfdbe9f75cdca7b115d3cd3 Mon Sep 17 00:00:00 2001 From: jthorn Date: Fri, 21 Nov 2003 11:11:32 +0000 Subject: revise semantics of min_horizon_radius_points_for_mask so it now tests against the angular minimum of r_inner, not r_min (= the angular minimum of r_horizon) like it did before ... docs update will follow shortly git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinAnalysis/AHFinderDirect/trunk@1216 f88db872-0e4f-0410-b76b-b9085cfa78c5 --- param.ccl | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) (limited to 'param.ccl') diff --git a/param.ccl b/param.ccl index ffb3d3f..aa31186 100644 --- a/param.ccl +++ b/param.ccl @@ -536,16 +536,24 @@ boolean mask_is_noshrink \ # # So... This parameter may be used to specify that the mask not be set # for a given horizon (just as if that horizon wasn't found) on any grid -# where the ratio -# BH_diagnostics.min_radius / max(Delta_x,Delta_y,Delta_z) -# (where Delta_[xyz] are the *LOCAL* grid spacings on the current grid) -# is too small (in particular, < this parameter). +# where the inner mask radius r_inner is < this many grid spacings. +# More precisely, we skip masking for any horizon where +# r_inner,min < min_horizon_radius_points_for_mask * Delta_x_current,max +# where +# r_inner,min = the minimum over all angles of the inner mask radius +# r_inner +# Delta_x_current,max = the maximum of the x,y,and z grid spacings +# in the *current* Cactus grid +# +# Note that since r_inner can be negative (if mask_radius_offset < 0 ), +# the default setting for this parameter is effectively -infinity, to +# excise any horizon. # real min_horizon_radius_points_for_mask \ - "only set mask if min horizon radius >= this number of local grid spacings" + "only set mask if min r_inner >= this number of local grid spacings" { -0.0:* :: "any real number >= 0.0" -} 0.0 +*:* :: "any real number" +} -1.0e10 # # This thorn supports two types of mask grid functions: -- cgit v1.2.3