0027845: BRepMesh produces invalid result on spline cavity

Adding test case for the problem.
The issue has been fixed by a patch for #26106.

tests/bugs/mesh/bug23513

@@ -0,0 +1,22 @@
+puts "=========="
+puts "0023513: BRepMesh doesn't stop until out-of-memory"
+puts "=========="
+puts ""
+
+restore [locate_data_file bug23513_infface.brep] result
+
+vinit
+vsetdispmode 1
+vdisplay result
+vfit
+ 
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png
+
+checktrinfo result -tri 323648 -nod 161865 -defl 0.00096399964870812682
+
+set log [tricheck result]
+if { [llength $log] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}

tests/bugs/mesh/bug26928

@@ -1,96 +1,34 @@
-puts "TODO CR26928 All: Error: Edges are meshed too coarsly"
-puts "REQUIRED CR26928 All: Error : Colors are not equal in default coordinate and in the near coordinates too"
-
 puts "========="
-puts "CR26928"
+puts "0026928: Edges are meshed too coarsly"
 puts "========="
 puts ""
-###############################
-# Edges are meshed too coarsly
-###############################
 
 restore [locate_data_file bug27356_comp.brep] c
-
+tclean c
-set x 168
-set y 298
 
 vinit
 vdisplay c
-vviewparams -scale 17.2151 -proj 0.68553 -0.268225 -0.676834 -up -0.664339 0.149845 -0.732257 -at 33.3169 24.0699 29.5546
+vviewparams -scale 44.578446 -proj 8.964134e-4 0.055037 -0.998484 -up -0.951475 0.307306 0.016085 -at 44.487383 37.608231 -3.232527 -eye 44.517406 37.608231 -3.232527
 vsetdispmode c 1
 checkview -screenshot -3d -path ${imagedir}/${test_image}-vdisplay.png
-if { [checkcolor $x $y 1 0 0] == 1 } {
-  puts "" 
-  puts "vdisplay.png" 
-  puts "Error: Edges are meshed too coarsly" 
-  puts "" 
-} else {
-  puts "" 
-  puts "vdisplay.png" 
-  puts "OK: Edges are meshed good" 
-  puts "" 
-}
 
+tclean c
+vdefaults -autoTriang 0
 incmesh c 0.715 -a 11.459
 vdisplay -redisplay c
-vviewparams -scale 17.2151 -proj 0.68553 -0.268225 -0.676834 -up -0.664339 0.149845 -0.732257 -at 33.3169 24.0699 29.5546
 checkview -screenshot -3d -path ${imagedir}/${test_image}-0715.png
-if { [checkcolor $x $y 1 0 0] == 1 } {
-  puts "" 
-  puts "0715.png" 
-  puts "Error: Edges are meshed too coarsly" 
-  puts "" 
-} else {
-  puts "" 
-  puts "0715.png" 
-  puts "OK: Edges are meshed good" 
-  puts "" 
-}
 
+tclean c
 incmesh c 0.5 -a 11.459
 vdisplay -redisplay c
-vviewparams -scale 17.2151 -proj 0.68553 -0.268225 -0.676834 -up -0.664339 0.149845 -0.732257 -at 33.3169 24.0699 29.5546
 checkview -screenshot -3d -path ${imagedir}/${test_image}-05.png
-if { [checkcolor $x $y 1 0 0] == 1 } {
-  puts "" 
-  puts "05.png" 
-  puts "Error: Edges are meshed too coarsly" 
-  puts "" 
-} else {
-  puts "" 
-  puts "05.png" 
-  puts "OK: Edges are meshed good" 
-  puts "" 
-}
 
+tclean c
 incmesh c 0.3 -a 11.459
 vdisplay -redisplay c
-vviewparams -scale 17.2151 -proj 0.68553 -0.268225 -0.676834 -up -0.664339 0.149845 -0.732257 -at 33.3169 24.0699 29.5546
 checkview -screenshot -3d -path ${imagedir}/${test_image}-03.png
-if { [checkcolor $x $y 1 0 0] == 1 } {
-  puts "" 
-  puts "03.png" 
-  puts "Error: Edges are meshed too coarsly" 
-  puts "" 
-} else {
-  puts "" 
-  puts "03.png" 
-  puts "OK: Edges are meshed good" 
-  puts "" 
-}
 
+tclean c
 incmesh c 0.1 -a 11.459
 vdisplay -redisplay c
-vviewparams -scale 17.2151 -proj 0.68553 -0.268225 -0.676834 -up -0.664339 0.149845 -0.732257 -at 33.3169 24.0699 29.5546
 checkview -screenshot -3d -path ${imagedir}/${test_image}-01.png
-if { [checkcolor $x $y 1 0 0] == 1 } {
-  puts "" 
-  puts "01.png" 
-  puts "Error: Edges are meshed too coarsly" 
-  puts "" 
-} else {
-  puts "" 
-  puts "01.png" 
-  puts "OK: Edges are meshed good" 
-  puts "" 
-}

tests/bugs/mesh/bug27158

@@ -0,0 +1,19 @@
+puts "========"
+puts "0027158: BRepMesh manage vertex tolerance in parametric space in improper way"
+puts "========"
+puts ""
+
+set BugNumber OCC27158
+
+restore [locate_data_file bug27158_ZoneB_25.brep] result
+
+tclean result
+
+checkview -display result -3d -path ${imagedir}/${test_image}.png
+
+set log [tricheck result]
+if { [llength $log] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}

tests/bugs/mesh/bug27693

@@ -0,0 +1,21 @@
+puts "======="
+puts "0027693: BRepMesh: fine edge tessellation leads to excess number of triangles along the whole U or V stripes"
+puts "======="
+puts ""
+
+pload XDE
+
+stepread [locate_data_file bug27693_cornetta-step.stp] a *
+renamevar a_1 a
+
+explode a f
+copy a_4 f
+don f
+incmesh f 0.01 -a 90
+isos f 0
+triangles f
+
+checktrinfo f -tri 2220 -nod 1232 -defl 0.0093553610383019445
+smallview +X+Y
+fit
+checkview -screenshot -2d -path ${imagedir}/${test_image}.png

tests/bugs/mesh/bug27845

@@ -0,0 +1,24 @@
+puts "=========="
+puts "0027845: BRepMesh produces invalid result on spline cavity"
+puts "=========="
+puts ""
+
+restore [locate_data_file bug27845_shape.brep] result
+tclean result
+incmesh result 10 -a 180
+
+vinit
+vsetdispmode 1
+vdefaults -autoTriang 0
+vdisplay result
+vfit 
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png
+
+checktrinfo result -tri 3006 -nod 4360 -defl 10
+
+set log [tricheck result]
+if { [llength $log] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}

tests/bugs/mesh/bug29205

@@ -0,0 +1,24 @@
+puts "=========="
+puts "0029205: BRepMesh skips some edges and generates invalid triangulation for the face"
+puts "=========="
+puts ""
+
+restore [locate_data_file bug29205_face.brep] result
+incmesh result 0.4
+
+vinit
+vsetdispmode 1
+vdefaults -autoTriang 0
+vdisplay result
+vviewparams -scale 67.9853 -proj 0.680425 -0.732509 -0.0212714 -up -0.0316277 -0.0583539 0.997795 -at 10.7708 -10.3962 6.25 -eye 18.2017 -18.3959 6.01769
+ 
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png
+
+checktrinfo result -tri 8 -nod 10 -defl 6.8481042509220045e-05
+
+set log [tricheck result]
+if { [llength $log] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}

tests/bugs/mesh/bug29685

@@ -0,0 +1,21 @@
+puts "======="
+puts "0029685: Meshing - BRepMesh does not respect requested deflection"
+puts "======="
+puts ""
+
+restore [locate_data_file bug29685_shape_to_render.brep] result
+vinit
+vsetdispmode 1
+vdisplay result
+vviewparams -scale 17.5502 -proj 0.57735 -0.57735 0.57735 -up -0.408248 0.408248 0.816497 -at 5.1597 115.661 188.336 -eye 43.2805 77.5402 226.457
+
+set log [tricheck result]
+if { [llength $log] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}
+
+checktrinfo result -tri 148 -nod 103 -defl 0.27179801813852145
+
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png

tests/bugs/mesh/bug29751

@@ -0,0 +1,29 @@
+puts "======="
+puts "0029751: Incremental mesh produces different meshes for windows and linux (debian 8)"
+puts "======="
+puts ""
+
+psphere sp 10
+pcylinder b1 2 10
+ttranslate b1 0 0 -10
+bcut result sp b1
+trotate result 0 0 0 1 0 0 45
+incmesh result 0.1
+
+vinit
+vdefaults -autoTriang 0
+vdisplay result
+vsetinteriorstyle 1
+vsetdispmode 1
+vfit
+
+set log [tricheck result]
+if { [llength $log] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}
+
+checktrinfo result -tri 1013 -nod 578 -defl 0.1
+
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png

tests/bugs/mesh/bug29962

@@ -0,0 +1,39 @@
+puts "======="
+puts "0029962: Master version of BRepMesh does not respect obvious details despite of specified deflection"
+puts "======="
+puts ""
+
+bsplinesurf s 4 5 0 5 1 1 2 1 3 1 4 5 4 5 0 5 1 1 2 1 3 1 4 5 0 0 0 1 10 0 0 1 20 0 0 1 30 0 0 1 40 0 0 1 50 0 0 1 60 0 0 1 70 0 0 1 0 10 0 1 10 10 999 1 20 10 0 1 30 10 0 1 40 10 0 1 50 10 0 1 60 10 0 1 70 10 0 1 0 20 0 1 10 20 0 1 20 20 0 1 30 20 0 1 40 20 0 1 50 20 0 1 60 20 0 1 70 20 0 1 0 30 0 1 10 30 0 1 20 30 0 1 30 30 0 1 40 30 0 1 50 30 0 1 60 30 0 1 70 30 0 1 0 40 0 1 10 40 0 1 20 40 0 1 30 40 0 1 40 40 0 1 50 40 0 1 60 40 0 1 70 40 0 1 0 50 0 1 10 50 0 1 20 50 0 1 30 50 0 1 40 50 0 1 50 50 0 1 60 50 0 1 70 50 0 1 0 60 0 1 10 60 0 1 20 60 0 1 30 60 0 1 40 60 0 1 50 60 0 1 60 60 999 1 70 60 0 1 0 70 0 1 10 70 0 1 20 70 0 1 30 70 0 1 40 70 0 1 50 70 0 1 60 70 0 1 70 70 0 1
+mkface result s
+
+incmesh result 100
+
+set log1 [tricheck result]
+if { [llength $log1] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}
+
+checktrinfo result -tri 2 -nod 4 -defl 0.0
+
+tclean result
+incmesh result 0.01
+
+set log2 [tricheck result]
+if { [llength $log2] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}
+
+checktrinfo result -tri 78186 -nod 39096 -defl 0.035123046705520911
+
+don result
+isos result 0
+triangles result
+
+smallview
+fit
+
+checkview -screenshot -2d -path ${imagedir}/${test_image}.png

tests/perf/mesh/bug23795

@@ -0,0 +1,19 @@
+puts "========="
+puts "0023795: Performance regression of meshing"
+puts "========="
+puts ""
+
+restore [locate_data_file bug23795_s.brep] result
+
+dchrono t restart
+incmesh result 0.1
+dchrono t stop counter MeshBug23795
+
+checktrinfo result -tri 10992 -nod 11016 -defl 0.1
+
+vinit
+vdefaults -autoTriang 0
+vsetdispmode 1
+vdisplay result
+vfit
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png

tests/perf/mesh/bug26889_1

@@ -0,0 +1,29 @@
+puts "========="
+puts "0026889: Very poor mesh result from shape"
+puts "========="
+puts ""
+
+pload XDE
+
+stepread [locate_data_file bug26889_export.step] a *
+
+dchrono t restart
+incmesh a_1 0.01 1
+dchrono t stop counter incmesh
+
+checktrinfo a_1 -tri 743149 -nod 372395 -defl 0.081028355715069861
+
+set log [tricheck a_1]
+if { [llength $log] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}
+
+
+vinit
+vdefaults -autoTriang 0
+vsetdispmode 1
+vdisplay a_1
+vfit
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png

tests/perf/mesh/bug26889_2

@@ -1,25 +1,28 @@
 puts "========="
-puts "CR26889"
+puts "0026889: Very poor mesh result from shape"
 puts "========="
 puts ""
-###############################################
-# Very poor mesh result from shape
-###############################################
 
 pload XDE
 
 stepread [locate_data_file bug26889_export.step] a *
 
-dlog reset
-dlog on
-
 dchrono t restart
 incmesh a_1 0.1 1
 dchrono t stop counter incmesh
 
-checktrinfo a_1 -tri -nod
+checktrinfo a_1 -tri 182273 -nod 91484 -defl 0.11671770612283024
+
+set log [tricheck a_1]
+if { [llength $log] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}
+
 
 vinit
+vdefaults -autoTriang 0
 vsetdispmode 1
 vdisplay a_1
 vfit

tests/perf/mesh/bug26889_3

@@ -0,0 +1,29 @@
+puts "========="
+puts "0026889: Very poor mesh result from shape"
+puts "========="
+puts ""
+
+pload XDE
+
+stepread [locate_data_file bug26889_export.step] a *
+
+dchrono t restart
+incmesh a_1 1.0 1
+dchrono t stop counter incmesh
+
+checktrinfo a_1 -tri 73119 -nod 36828 -defl 1.0
+
+set log [tricheck a_1]
+if { [llength $log] != 0 } {
+  puts "Error : Invalid mesh"
+} else {
+  puts "Mesh is OK"
+}
+
+
+vinit
+vdefaults -autoTriang 0
+vsetdispmode 1
+vdisplay a_1
+vfit
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png

tests/perf/mesh/bug26965

@@ -0,0 +1,19 @@
+puts "=========="
+puts "0026965: BRepMesh_IncrementalMesh hangs, and consumes infinite memory"
+puts "=========="
+puts ""
+
+restore [locate_data_file bug26965_mesh_hang.brep] a
+tclean a
+vinit
+vsetdispmode 1
+
+dchrono h restart
+vdisplay a
+dchrono h stop counter DisplayBug26965
+dchrono h 
+
+vfit
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png
+
+checktrinfo a -tri 217070 -nod 108740 -defl 0.098772787476728782