From 5e06dfcb323c010170a0c37e4e84fa0cce678fcf Mon Sep 17 00:00:00 2001
From: oan <oan@opencascade.com>
Date: Sat, 19 Oct 2019 16:28:55 +0300
Subject: [PATCH] 0028247: Effect of minSize parameter of
 BRepMesh_IncrementalMesh seems to be too strong Updated description of
 MinSize parameter of IMeshTools_Parameters

---
 src/IMeshTools/IMeshTools_Parameters.hxx |  3 +-
 tests/bugs/mesh/bug28247                 | 43 +++++++++++-------------
 2 files changed, 21 insertions(+), 25 deletions(-)

diff --git a/src/IMeshTools/IMeshTools_Parameters.hxx b/src/IMeshTools/IMeshTools_Parameters.hxx
index 66d1cb555e..c0526becdb 100644
--- a/src/IMeshTools/IMeshTools_Parameters.hxx
+++ b/src/IMeshTools/IMeshTools_Parameters.hxx
@@ -58,7 +58,8 @@ struct IMeshTools_Parameters {
   //! Linear deflection used to tessellate the face interior
   Standard_Real                                    DeflectionInterior;
   
-  //! Minimal allowed size of mesh element
+  //! Minimum size parameter limiting size of triangle's edges to prevent 
+  //! sinking into amplification in case of distorted curves and surfaces.
   Standard_Real                                    MinSize;
 
   //! Switches on/off multi-thread computation
diff --git a/tests/bugs/mesh/bug28247 b/tests/bugs/mesh/bug28247
index c73a9fb5e4..408b30c595 100644
--- a/tests/bugs/mesh/bug28247
+++ b/tests/bugs/mesh/bug28247
@@ -6,40 +6,35 @@ puts ""
 # Effect of minSize parameter of BRepMesh_IncrementalMesh seems to be too strong
 ################################################################################
 
-restore [locate_data_file bug28247_face.brep] f
-whatis f
-tolerance f
+restore [locate_data_file bug28247_face.brep] result
+whatis result
+tolerance result
 
 vinit
+vdefaults -autoTriang 0
 vsetdispmode 1
-vdisplay f
+
+tclean result
+incmesh result 0.59
+vdisplay result -redisplay
 vfit
 
-tclean f
-incmesh f 0.59
-trinfo f
-vdisplay f
-vfit
+checktrinfo result -tri 1235 
 checkview -screenshot -3d -path ${imagedir}/${test_image}-1.png
 
-tclean f
-incmesh f 0.59 -a 11.45
-set tri_info_1 [trinfo f]
-regexp { +([-0-9.+eE]+) +triangles} $tri_info_1 full tri_1
-regexp { +([-0-9.+eE]+) +nodes} $tri_info_1 full nod_1
-vdisplay f
+tclean result
+incmesh result 0.59 -a 11.45
+vdisplay result -redisplay
 vfit
+
+checktrinfo result -tri 6438
 checkview -screenshot -3d -path ${imagedir}/${test_image}-2.png
 
-tclean f
-incmesh f 0.59 -a 11.45 -min 0.035
-set tri_info_2 [trinfo f]
-regexp { +([-0-9.+eE]+) +triangles} $tri_info_2 full tri_2
-regexp { +([-0-9.+eE]+) +nodes} $tri_info_2 full nod_2
-vdisplay f
+tclean result
+incmesh result 0.59 -a 11.45 -min 0.035
+vdisplay result -redisplay
 vfit
+
+checktrinfo result -tri 7079
 checkview -screenshot -3d -path ${imagedir}/${test_image}-3.png
 
-if { ${tri_1} > ${tri_2} } {
-   puts "Error: Effect of minSize parameter of BRepMesh_IncrementalMesh seems to be too strong"
-}