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0032982: [Regression to 7.3.0] Mesh - Meshing the shape takes too long and visualization is bad

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New formula to calculate number of points along V axis of a cone depending on ratio of its size along V and U.
This commit is contained in:
oan 2022-08-26 18:54:33 +03:00 committed by smoskvin
parent 8da2801496
commit dfb5aebd35
7 changed files with 50 additions and 7 deletions
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9
src/BRepMesh/BRepMesh_ConeRangeSplitter.cxx
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@ -41,10 +41,13 @@ std::pair<Standard_Real, Standard_Real> BRepMesh_ConeRangeSplitter::GetSplitStep
const Standard_Real aDiffU = aRangeU.second - aRangeU.first;
const Standard_Real aDiffV = aRangeV.second - aRangeV.first;
Standard_Integer nbU = (Standard_Integer) (aDiffU / Du);
Standard_Integer nbV = (Standard_Integer) (nbU * (aDiffV) / (aDiffU * aRadius));
const Standard_Real aScale = (Du * aRadius);
const Standard_Real aRatio = Max(1., Log(aDiffV / aScale));
const Standard_Integer nbU = (Standard_Integer)(aDiffU / Du);
const Standard_Integer nbV = (Standard_Integer)(aDiffV / aScale / aRatio);
Du = aDiffU / (nbU + 1);
Dv = aDiffV / (nbV + 1);
Dv = aDiffV / (nbV + static_cast<Standard_Integer>(aRatio));
theStepsNb.first = nbU;
theStepsNb.second = nbV;

2
tests/bugs/mesh/bug25042
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@ -14,7 +14,7 @@ vviewparams -scale 1.81755 -proj 0.88572 0.104526 0.452299 -up -0.0339444 0.9862
checkview -screenshot -3d -path ${imagedir}/${test_image}.png
checktrinfo result -tri 957 -nod 558 -defl 1.1088499641289298 -tol_abs_defl 1e-6
checktrinfo result -tri 509 -nod 327 -defl 1.5916215272983552 -tol_abs_defl 1e-6
set log [tricheck result]
if { [llength $log] != 0 } {

2
tests/bugs/mesh/bug25287
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@ -11,7 +11,7 @@ renamevar a_1 result
incmesh result 0.0001 -a 30 -force_face_def -parallel
checktrinfo result -tri 13854 -nod 9190 -defl 0.00028360162213471898 -tol_abs_defl 1e-6
checktrinfo result -tri 12512 -nod 8519 -defl 0.00031502118964205414 -tol_abs_defl 1e-6
vinit
vsetdispmode 1

2
tests/bugs/mesh/bug32692_1
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@ -8,4 +8,4 @@ puts "REQUIRED ALL: Meshing statuses: SelfIntersectingWire Failure"
restore [locate_data_file bug32692.brep] s
incmesh s 0.01 -parallel
checktrinfo s -nod 7511 -tri 7625 -empty 9 -face 309
checktrinfo s -nod 7427 -tri 7457 -empty 9 -face 309

2
tests/bugs/mesh/bug32767
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@ -6,4 +6,4 @@ puts ""
restore [locate_data_file bug32767.brep] s
tclean s
incmesh s 0.01
checktrinfo s -tri 3220 -nod 1770 -defl 0.018398669654253779 -tol_abs_defl 1e-6
checktrinfo s -tri 1512 -nod 909 -defl 0.035378595363471328 -tol_abs_defl 1e-6

19
tests/bugs/mesh/bug32982_1 Normal file
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@ -0,0 +1,19 @@
puts "========="
puts "OCC32982: Mesh - Meshing the shape takes too long and visualization is bad"
puts "========="
puts ""
restore [locate_data_file bug32982.brep] result
incmesh result 5.58
checktrinfo result -nod 4036 -tri 7450
vinit
vdefaults -autoTriang 0
vdisplay result
vsetdispmode 1
vfit
vpan -5 198
vzoom 150
checkview -screenshot -3d -path ${imagedir}/${test_image}.png

21
tests/bugs/mesh/bug32982_2 Normal file
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@ -0,0 +1,21 @@
puts "========="
puts "OCC32982: Mesh - Meshing the shape takes too long and visualization is bad"
puts "========="
puts ""
restore [locate_data_file bug32982.brep] result
tscale result 9.7978019714355504 25.567642604431001 42.7875250671255 0.001
incmesh result 0.00558
checktrinfo result -nod 4036 -tri 7450
vinit
vdefaults -autoTriang 0
vdisplay result
vsetdispmode 1
vfit
vpan -5 198
vzoom 150
checkview -screenshot -3d -path ${imagedir}/${test_image}.png