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occt/tests/bugs/modalg_2/bug20964_2
nbv 3306fdd954 0029807: [Regression to 7.0.0] Impossible to cut cone from prism
The algorithm has been improved for the cases when the intersection line goes through the cone apex.

<!break>

1. All special points are put to the ALine forcefully (if they are true intersection point). Currently this step has not been implemented yet.

2. Now the tolerance of IntPatch_Point (put into ALine) is computed in order to cover the distance between it and the correspond ALine.

3. Test cases have been created.

4. Procedure of trimming IntAna_Curve has been improved.

5. Criterion when the discriminant of IntAna_Curve can be considered to be equal to 0 has been improved.

6. Methods IntAna_Curve::FindParameter(...) (and IntPatch_ALine::FindParameter(...)) currently returns list of all parameters corresponding the given point (IntAna_Curve can be self-interfered curve). Before the fix, this method always returned only one (randomly chosen) parameter.

7. Interfaces of the following methods have been changed: IntAna_Curve::FindParameter(...), IntPatch_ALine::FindParameter(...), IntPatch_ALine::ChangeVertex(...), IntPatch_SpecialPoints::AddPointOnUorVIso(...), IntPatch_SpecialPoints::AddSingularPole(...), IntPatch_WLineTool::ExtendTwoWLines().

8. Following methods have been added: IntAna_Quadric::SpecialPoints(...), IntPatch_ALineToWLine::GetSectionRadius(...), IntPatch_SpecialPoints::ProcessSphere(...), IntPatch_SpecialPoints::ProcessCone(...), IntPatch_SpecialPoints::GetTangentToIntLineForCone(...).

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1) tests/boolean/volumemaker/C5
   tests/boolean/volumemaker/C6
   tests/boolean/volumemaker/E7

They are real IMPROVEMENTS. In the FIX (in compare with MASTER), section result between pairs of faces f2&f6 (C5), f3&f7 (C6) and f1&f5 (E7) is closed. Separated test cases have been created in order to focus on the problem with section. Bug #28503 has been fixed.

Correction in test cases.
2018-07-06 15:52:48 +03:00

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puts "============"
puts "OCC20964: Wrong result of cut operation for given shapes"
puts "============"
puts ""
restore [locate_data_file OCC20964_revsolid.brep] b1
restore [locate_data_file OCC20964_sphere.brep] b2
bclearobjects
bcleartools
baddobjects b1
baddtools b2
bfillds
# COMMON
bbop result 0
checkprops result -s 5158.93
checkshape result
set NbShapesRef "
Number of shapes in .*
VERTEX : 8
EDGE : 12
WIRE : 6
FACE : 5
SHELL : 1
SOLID : 1
COMPSOLID : 0
COMPOUND : 1
SHAPE : 34
"
checknbshapes result -ref $NbShapesRef
checkmaxtol result -ref 0.013928665225777443
checkview -display result -2d -path ${imagedir}/${test_image}_axo.png
vdisplay result
vsetdispmode 1
vviewparams -scale 15.9695 -proj 0.0161244 -0.535424 0.84443 -up -0.773936 0.528029 0.349583 -at 117.532 248.227 -4.41145e-007 -eye 118.783 206.661 65.5549
if { [string compare "" [tricheck result] ] } {
puts "Error in triangulation"
}
checkview -screenshot -3d -path ${imagedir}/${test_image}_shade.png