kindred/create
1
1
Fork 0
Code Issues 37 Pull Requests Actions Packages Projects 9 Releases 2 Wiki Activity

First draft of makeThread

Browse Source
This commit is contained in:
wmayer
2012-06-15 13:04:07 +02:00
parent 8fac2f41f8
commit a6261ed84b
4 changed files with 92 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

63
src/Mod/Part/App/TopoShape.cpp
View File

@@ -105,6 +105,7 @@
# include <TopExp.hxx>
# include <TopExp_Explorer.hxx>
# include <TopTools_ListIteratorOfListOfShape.hxx>
# include <Geom2d_Ellipse.hxx>
# include <Geom_BezierCurve.hxx>
# include <Geom_BezierSurface.hxx>
# include <Geom_BSplineCurve.hxx>
@@ -1560,6 +1561,68 @@ TopoDS_Shape TopoShape::makeHelix(Standard_Real pitch, Standard_Real height,
return wire;
}
TopoDS_Shape TopoShape::makeThread(Standard_Real pitch,
Standard_Real depth,
Standard_Real height,
Standard_Real radius) const
{
if (pitch < Precision::Confusion())
Standard_Failure::Raise("Pitch of thread too small");
if (depth < Precision::Confusion())
Standard_Failure::Raise("Depth of thread too small");
if (height < Precision::Confusion())
Standard_Failure::Raise("Height of thread too small");
if (radius < Precision::Confusion())
Standard_Failure::Raise("Radius of thread too small");
//Threading : Create Surfaces
gp_Ax2 cylAx2(gp_Pnt(0.0,0.0,0.0) , gp::DZ());
Handle(Geom_CylindricalSurface) aCyl1 = new Geom_CylindricalSurface(cylAx2 , radius);
Handle(Geom_CylindricalSurface) aCyl2 = new Geom_CylindricalSurface(cylAx2 , radius+depth);
//Threading : Define 2D Curves
gp_Pnt2d aPnt(2. * M_PI , height / 2.);
gp_Dir2d aDir(2. * M_PI , height / 4.);
gp_Ax2d aAx2d(aPnt , aDir);
Standard_Real aMajor = 2. * M_PI;
Standard_Real aMinor = pitch;
Handle(Geom2d_Ellipse) anEllipse1 = new Geom2d_Ellipse(aAx2d , aMajor , aMinor);
Handle(Geom2d_Ellipse) anEllipse2 = new Geom2d_Ellipse(aAx2d , aMajor , aMinor / 4);
Handle(Geom2d_TrimmedCurve) aArc1 = new Geom2d_TrimmedCurve(anEllipse1 , 0 , M_PI);
Handle(Geom2d_TrimmedCurve) aArc2 = new Geom2d_TrimmedCurve(anEllipse2 , 0 , M_PI);
gp_Pnt2d anEllipsePnt1 = anEllipse1->Value(0);
gp_Pnt2d anEllipsePnt2 = anEllipse1->Value(M_PI);
Handle(Geom2d_TrimmedCurve) aSegment = GCE2d_MakeSegment(anEllipsePnt1 , anEllipsePnt2);
//Threading : Build Edges and Wires
TopoDS_Edge aEdge1OnSurf1 = BRepBuilderAPI_MakeEdge(aArc1 , aCyl1);
TopoDS_Edge aEdge2OnSurf1 = BRepBuilderAPI_MakeEdge(aSegment , aCyl1);
TopoDS_Edge aEdge1OnSurf2 = BRepBuilderAPI_MakeEdge(aArc2 , aCyl2);
TopoDS_Edge aEdge2OnSurf2 = BRepBuilderAPI_MakeEdge(aSegment , aCyl2);
TopoDS_Wire threadingWire1 = BRepBuilderAPI_MakeWire(aEdge1OnSurf1 , aEdge2OnSurf1);
TopoDS_Wire threadingWire2 = BRepBuilderAPI_MakeWire(aEdge1OnSurf2 , aEdge2OnSurf2);
BRepLib::BuildCurves3d(threadingWire1);
BRepLib::BuildCurves3d(threadingWire2);
BRepOffsetAPI_ThruSections aTool(Standard_True);
aTool.AddWire(threadingWire1);
aTool.AddWire(threadingWire2);
aTool.CheckCompatibility(Standard_False);
return aTool.Shape();
}
TopoDS_Shape TopoShape::makeLoft(const TopTools_ListOfShape& profiles,
Standard_Boolean isSolid,
Standard_Boolean isRuled) const