OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-03 17:56:21 +03:00
Code Packages Releases Activity

0033570: Modeling Algorithms - Incorrect result of cutting spheres

Browse Source 
The reason of current problem lies inside projection algorithm
Function_SetUVBounds() for projection of circle onto sphere produces shifted bounds.
Incorrect checking of placement on summit of the sphere was fixed.
This commit is contained in:
akaftasev 2024-07-08 16:49:52 +01:00 committed by dpasukhi
parent f39f9838e4
commit c6065f5da9
2 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/ProjLib/ProjLib_ComputeApprox.cxx
View File

@ -655,7 +655,7 @@ static void Function_SetUVBounds(Standard_Real& myU1,
// si P1.Z() vaut +/- R on est sur le sommet : pas significatif.
gp_Pnt pp = P1.Transformed(Trsf);
if ( Abs( Abs(pp.Z()) - R) < Tol) {
if ( Abs(pp.X() * pp.X() + pp.Y() * pp.Y() + pp.Z() * pp.Z() - R * R) < Tol) {
gp_Pnt Center = Circle.Location();
Standard_Real U,V;
ElSLib::SphereParameters(gp_Ax3(gp::XOY()),1,Center, U, V);

14
tests/bugs/modalg_8/bug33570 Normal file
View File

@ -0,0 +1,14 @@
puts "================================"
puts "0033570: Modeling Algorithms - Incorrect result of cutting spheres"
puts "================================"
puts ""
psphere s1 4
psphere s2 1
ttranslate s1 0 5.5 18
ttranslate s2 0 4.5 14
bcut result s1 s2
checknbshapes result -vertex 4 -edge 7 -wire 2 -face 2
checkview -display result -2d -path ${imagedir}/${test_image}.png