diff options
Diffstat (limited to 'param.ccl')
-rw-r--r-- | param.ccl | 22 |
1 files changed, 15 insertions, 7 deletions
@@ -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: |