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+ Get exact point on data model when picking in 3d view

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This commit is contained in:
wmayer
2013-11-21 12:50:49 +01:00
parent f5a4c28f3d
commit 1333cb8734
8 changed files with 91 additions and 11 deletions
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46
src/Mod/Part/Gui/ViewProviderExt.cpp
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@@ -27,6 +27,8 @@
# include <sstream>
# include <Poly_Polygon3D.hxx>
# include <BRepBndLib.hxx>
# include <BRepBuilderAPI_MakeVertex.hxx>
# include <BRepExtrema_DistShapeShape.hxx>
# include <BRepMesh.hxx>
# include <BRepMesh_IncrementalMesh.hxx>
# include <BRep_Tool.hxx>
@@ -51,6 +53,7 @@
# include <TopoDS_Wire.hxx>
# include <TopoDS_Face.hxx>
# include <TopoDS_Shape.hxx>
# include <TopoDS_Vertex.hxx>
# include <TopoDS_Iterator.hxx>
# include <TopExp_Explorer.hxx>
# include <TopExp.hxx>
@@ -472,6 +475,49 @@ SoDetail* ViewProviderPartExt::getDetail(const char* subelement) const
return detail;
}
std::vector<Base::Vector3d> ViewProviderPartExt::getPickedPoints(const SoPickedPoint* pp) const
{
try {
std::vector<Base::Vector3d> pts;
std::string element = this->getElement(pp->getDetail());
const Part::TopoShape& shape = static_cast<Part::Feature*>(getObject())->Shape.getShape();
TopoDS_Shape subShape = shape.getSubShape(element.c_str());
// get the point of the vertex directly
if (subShape.ShapeType() == TopAbs_VERTEX) {
const TopoDS_Vertex& v = TopoDS::Vertex(subShape);
gp_Pnt p = BRep_Tool::Pnt(v);
pts.push_back(Base::Vector3d(p.X(),p.Y(),p.Z()));
}
// get the nearest point on the edge
else if (subShape.ShapeType() == TopAbs_EDGE) {
const SbVec3f& vec = pp->getPoint();
BRepBuilderAPI_MakeVertex mkVert(gp_Pnt(vec[0],vec[1],vec[2]));
BRepExtrema_DistShapeShape distSS(subShape, mkVert.Vertex(), 0.1);
if (distSS.NbSolution() > 0) {
gp_Pnt p = distSS.PointOnShape1(1);
pts.push_back(Base::Vector3d(p.X(),p.Y(),p.Z()));
}
}
// get the nearest point on the face
else if (subShape.ShapeType() == TopAbs_FACE) {
const SbVec3f& vec = pp->getPoint();
BRepBuilderAPI_MakeVertex mkVert(gp_Pnt(vec[0],vec[1],vec[2]));
BRepExtrema_DistShapeShape distSS(subShape, mkVert.Vertex(), 0.1);
if (distSS.NbSolution() > 0) {
gp_Pnt p = distSS.PointOnShape1(1);
pts.push_back(Base::Vector3d(p.X(),p.Y(),p.Z()));
}
}
return pts;
}
catch (...) {
return ViewProvider::getPickedPoints(pp);
}
}
std::vector<Base::Vector3d> ViewProviderPartExt::getSelectionShape(const char* Element) const
{
return std::vector<Base::Vector3d>();