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+ support of circle and arcs as external geometries

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git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5353 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
This commit is contained in:
wmayer 2011-12-28 16:13:43 +00:00
parent 93665fa95a
commit 0ab5a83903
1 changed files with 73 additions and 1 deletions
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74
src/Mod/Sketcher/App/SketchObject.cpp
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@ -26,12 +26,16 @@
# include <TopoDS_Shape.hxx>
# include <TopoDS_Face.hxx>
# include <TopoDS.hxx>
# include <TopExp_Explorer.hxx>
# include <gp_Pln.hxx>
# include <gp_Ax3.hxx>
# include <gp_Circ.hxx>
# include <BRepAdaptor_Surface.hxx>
# include <BRepAdaptor_Curve.hxx>
# include <Geom_Plane.hxx>
# include <GeomAPI_ProjectPointOnSurf.hxx>
# include <BRepOffsetAPI_NormalProjection.hxx>
# include <BRepBuilderAPI_MakeFace.hxx>
#endif
#include <Base/Writer.h>
@ -1096,6 +1100,12 @@ void SketchObject::rebuildExternalGeometry(void)
Rot.multVec(dX,dX);
Base::Placement invPlm = Plm.inverse();
Base::Matrix4D invMat = invPlm.toMatrix();
gp_Trsf mov;
mov.SetValues(invMat[0][0],invMat[0][1],invMat[0][2],invMat[0][3],
invMat[1][0],invMat[1][1],invMat[1][2],invMat[1][3],
invMat[2][0],invMat[2][1],invMat[2][2],invMat[2][3],
0.00001,0.00001);
gp_Ax3 sketchAx3(gp_Pnt(Pos.x,Pos.y,Pos.z),
gp_Dir(dN.x,dN.y,dN.z),
@ -1103,6 +1113,8 @@ void SketchObject::rebuildExternalGeometry(void)
gp_Pln sketchPlane(sketchAx3);
Handle(Geom_Plane) gPlane = new Geom_Plane(sketchPlane);
BRepBuilderAPI_MakeFace mkFace(sketchPlane);
TopoDS_Shape aProjFace = mkFace.Shape();
for (std::vector<Part::Geometry *>::iterator it=ExternalGeo.begin(); it != ExternalGeo.end(); ++it)
if (*it) delete *it;
@ -1172,7 +1184,67 @@ void SketchObject::rebuildExternalGeometry(void)
ExternalGeo.push_back(line);
}
else {
throw Base::Exception("Not yet supported geometry for external geometry");
try {
BRepOffsetAPI_NormalProjection mkProj(aProjFace);
mkProj.Add(edge);
mkProj.Build();
const TopoDS_Shape& projShape = mkProj.Projection();
if (!projShape.IsNull()) {
TopExp_Explorer xp;
for (xp.Init(projShape, TopAbs_EDGE); xp.More(); xp.Next()) {
TopoDS_Edge edge = TopoDS::Edge(xp.Current());
TopLoc_Location loc(mov);
edge.Location(loc);
BRepAdaptor_Curve curve(edge);
if (curve.GetType() == GeomAbs_Line) {
gp_Pnt P1 = curve.Value(curve.FirstParameter());
gp_Pnt P2 = curve.Value(curve.LastParameter());
Base::Vector3d p1(P1.X(),P1.Y(),P1.Z());
Base::Vector3d p2(P2.X(),P2.Y(),P2.Z());
if (Base::Distance(p1,p2) < Precision::Confusion()) {
std::string msg = SubElement + " perpendicular to the sketch plane cannot be used as external geometry";
throw Base::Exception(msg.c_str());
}
Part::GeomLineSegment* line = new Part::GeomLineSegment();
line->setPoints(p1,p2);
line->Construction = true;
ExternalGeo.push_back(line);
}
else if (curve.GetType() == GeomAbs_Circle) {
gp_Circ c = curve.Circle();
gp_Pnt p = c.Location();
gp_Pnt P1 = curve.Value(curve.FirstParameter());
gp_Pnt P2 = curve.Value(curve.LastParameter());
if (P1.SquareDistance(P2) < Precision::Confusion()) {
Part::GeomCircle* circle = new Part::GeomCircle();
circle->setRadius(c.Radius());
circle->setCenter(Base::Vector3d(p.X(),p.Y(),p.Z()));
circle->Construction = true;
ExternalGeo.push_back(circle);
}
else {
Part::GeomArcOfCircle* arc = new Part::GeomArcOfCircle();
arc->setRadius(c.Radius());
arc->setCenter(Base::Vector3d(p.X(),p.Y(),p.Z()));
arc->setRange(curve.FirstParameter(), curve.LastParameter());
arc->Construction = true;
ExternalGeo.push_back(arc);
}
}
else {
throw Base::Exception("Not yet supported geometry for external geometry");
}
}
}
}
catch (...) {
}
}
}
break;