ForkMaster/netgen
1
0
Fork 0
mirror of https://github.com/NGSolve/netgen.git synced 2024-12-25 05:20:34 +05:00
Code Issues Packages Projects Releases Wiki Activity

add tolerance to occ-edge projection

Browse Source
This commit is contained in:
Christopher Lackner 2024-01-10 16:31:05 +01:00
parent 54287bbfbb
commit 48eb4fed07
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
libsrc/occ/occ_edge.cpp
View File

@ -61,7 +61,12 @@ namespace netgen
void OCCEdge::ProjectPoint(Point<3>& p, EdgePointGeomInfo* gi) const
{
auto pnt = ng2occ(p);
GeomAPI_ProjectPointOnCurve proj(pnt, curve, s0, s1);
// extend the projection parameter range, else projection might fail
// for an endpoint
// see discussion here: https://forum.ngsolve.org/t/how-to-apply-occidentification-correctly/2555
// I do not see a better way using occ tolerances?
double eps = 1e-7 * (s1-s0);
GeomAPI_ProjectPointOnCurve proj(pnt, curve, s0-eps, s1+eps);
pnt = proj.NearestPoint();
if(gi)
gi->dist = (proj.LowerDistanceParameter() - s0)/(s1-s0);