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add method to project points on mesh

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This commit is contained in:
wmayer
2019-06-26 16:57:14 +02:00
parent db257df76c
commit 929210fd1d
3 changed files with 88 additions and 0 deletions
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30
src/Mod/MeshPart/App/CurveProjector.cpp
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@@ -844,6 +844,36 @@ void MeshProjection::projectToMesh (const TopoDS_Shape &aShape, float fMaxDist,
}
}
void MeshProjection::projectOnMesh(const std::vector<Base::Vector3f>& pointsIn,
const Base::Vector3f& dir,
float tolerance,
std::vector<Base::Vector3f>& pointsOut) const
{
// calculate the average edge length and create a grid
MeshAlgorithm clAlg(_rcMesh);
float fAvgLen = clAlg.GetAverageEdgeLength();
MeshFacetGrid cGrid(_rcMesh, 5.0f*fAvgLen);
Base::SequencerLauncher seq( "Project points on mesh", pointsIn.size() );
for (auto it : pointsIn) {
Base::Vector3f result;
unsigned long index;
if (clAlg.NearestFacetOnRay(it, dir, cGrid, result, index)) {
MeshCore::MeshGeomFacet geomFacet = _rcMesh.GetFacet(index);
if (tolerance > 0 && geomFacet.IntersectPlaneWithLine(it, dir, result)) {
if (geomFacet.IsPointOfFace(result, tolerance))
pointsOut.push_back(result);
}
else {
pointsOut.push_back(result);
}
}
seq.next();
}
}
void MeshProjection::projectParallelToMesh (const TopoDS_Shape &aShape, const Base::Vector3f& dir, std::vector<PolyLine>& rPolyLines) const
{
// calculate the average edge length and create a grid