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generate minumum number of points from an edge

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wmayer
2019-05-19 19:07:45 +02:00
parent 3cbc456759
commit 4cfd4b0248
3 changed files with 17 additions and 3 deletions
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17
src/Mod/MeshPart/App/CurveProjector.cpp
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@@ -30,6 +30,7 @@
# include <BndLib_Add3dCurve.hxx>
# include <BRepAdaptor_Curve.hxx>
# include <GCPnts_UniformDeflection.hxx>
# include <GCPnts_UniformAbscissa.hxx>
# include <gp_Pln.hxx>
# include <TopExp_Explorer.hxx>
# include <TopoDS.hxx>
@@ -688,7 +689,7 @@ MeshProjection::~MeshProjection()
{
}
void MeshProjection::discretize(const TopoDS_Edge& aEdge, std::vector<Base::Vector3f>& polyline) const
void MeshProjection::discretize(const TopoDS_Edge& aEdge, std::vector<Base::Vector3f>& polyline, std::size_t minPoints) const
{
BRepAdaptor_Curve clCurve(aEdge);
@@ -703,6 +704,18 @@ void MeshProjection::discretize(const TopoDS_Edge& aEdge, std::vector<Base::Vect
polyline.push_back( Base::Vector3f( (float)gpPt.X(), (float)gpPt.Y(), (float)gpPt.Z() ) );
}
}
if (polyline.size() < minPoints) {
GCPnts_UniformAbscissa clAbsc(clCurve, static_cast<Standard_Integer>(minPoints), fFirst, fLast);
if (clAbsc.IsDone() == Standard_True) {
polyline.clear();
Standard_Integer nNbPoints = clAbsc.NbPoints();
for (Standard_Integer i = 1; i <= nNbPoints; i++) {
gp_Pnt gpPt = clCurve.Value(clAbsc.Parameter(i));
polyline.push_back( Base::Vector3f( (float)gpPt.X(), (float)gpPt.Y(), (float)gpPt.Z() ) );
}
}
}
}
void MeshProjection::splitMeshByShape ( const TopoDS_Shape &aShape, float fMaxDist ) const
@@ -765,7 +778,7 @@ void MeshProjection::projectParallelToMesh (const TopoDS_Shape &aShape, const Ba
for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
const TopoDS_Edge& aEdge = TopoDS::Edge(Ex.Current());
std::vector<Base::Vector3f> points;
discretize(aEdge, points);
discretize(aEdge, points, 5);
typedef std::pair<Base::Vector3f, unsigned long> HitPoint;
std::vector<HitPoint> hitPoints;

2
src/Mod/MeshPart/App/CurveProjector.h
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@@ -180,7 +180,7 @@ public:
/// Destruction
~MeshProjection();
void discretize(const TopoDS_Edge& aEdge, std::vector<Base::Vector3f>& polyline) const;
void discretize(const TopoDS_Edge& aEdge, std::vector<Base::Vector3f>& polyline, std::size_t minPoints=2) const;
/**
* Searches all edges that intersect with the projected curve \a aShape. Therefore \a aShape must
* contain shapes of type TopoDS_Edge, other shape types are ignored. A possible solution is

1
src/Mod/MeshPart/App/PreCompiled.h
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@@ -147,6 +147,7 @@
#include <GCE2d_MakeSegment.hxx>
#include <GCPnts_TangentialDeflection.hxx>
#include <GCPnts_UniformDeflection.hxx>
#include <GCPnts_UniformAbscissa.hxx>
#include <Geom_Axis2Placement.hxx>
#include <Geom_CartesianPoint.hxx>
#include <Geom_Line.hxx>