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0000542: request for 'Draft Angle' option for extrusion

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git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5359 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
This commit is contained in:
wmayer
2011-12-29 18:20:59 +00:00
parent fe0767a4b4
commit 60ba9cf5db
6 changed files with 122 additions and 8 deletions
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85
src/Mod/Part/App/FeatureExtrusion.cpp
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@@ -23,10 +23,23 @@
#include "PreCompiled.h"
#ifndef _PreComp_
# include <cmath>
# include <gp_Trsf.hxx>
# include <BRepOffsetAPI_MakeOffset.hxx>
# include <BRepBuilderAPI_MakeFace.hxx>
# include <BRepBuilderAPI_Transform.hxx>
# include <BRepOffsetAPI_ThruSections.hxx>
# include <BRepPrimAPI_MakePrism.hxx>
# include <Precision.hxx>
# include <ShapeFix_Wire.hxx>
# include <TopoDS.hxx>
# include <TopExp_Explorer.hxx>
#endif
#include "FeatureExtrusion.h"
#include <Base/Tools.h>
#include <Base/Exception.h>
using namespace Part;
@@ -38,12 +51,16 @@ Extrusion::Extrusion()
{
ADD_PROPERTY(Base,(0));
ADD_PROPERTY(Dir,(Base::Vector3f(0.0f,0.0f,1.0f)));
ADD_PROPERTY(Solid,(false));
ADD_PROPERTY(TaperAngle,(0.0f));
}
short Extrusion::mustExecute() const
{
if (Base.isTouched() ||
Dir.isTouched() )
Dir.isTouched() ||
Solid.isTouched() ||
TaperAngle.isTouched())
return 1;
return 0;
}
@@ -59,13 +76,69 @@ App::DocumentObjectExecReturn *Extrusion::execute(void)
Base::Vector3f v = Dir.getValue();
gp_Vec vec(v.x,v.y,v.z);
float taperAngle = TaperAngle.getValue();
bool makeSolid = Solid.getValue();
try {
// Now, let's get the TopoDS_Shape
TopoDS_Shape swept = base->Shape.getShape().makePrism(vec);
if (swept.IsNull())
return new App::DocumentObjectExecReturn("Resulting shape is null");
this->Shape.setValue(swept);
if (std::fabs(taperAngle) >= Precision::Confusion()) {
#if defined(__GNUC__) && defined (FC_OS_LINUX)
Base::SignalException se;
#endif
double distance = std::tan(Base::toRadians(taperAngle)) * vec.Magnitude();
const TopoDS_Shape& shape = base->Shape.getValue();
bool isWire = (shape.ShapeType() == TopAbs_WIRE);
if (!isWire)
return new App::DocumentObjectExecReturn("Only wires supported");
std::list<TopoDS_Wire> wire_list;
BRepOffsetAPI_MakeOffset mkOffset;
#if 1 //OCC_HEX_VERSION < 0x060502
// The input wire may have erorrs in its topology
// and thus may cause a crash in the Perfrom() method
// See also:
// http://www.opencascade.org/org/forum/thread_17640/
// http://www.opencascade.org/org/forum/thread_12012/
ShapeFix_Wire aFix;
aFix.Load(TopoDS::Wire(shape));
aFix.FixReorder();
aFix.FixConnected();
aFix.FixClosed();
mkOffset.AddWire(aFix.Wire());
wire_list.push_back(aFix.Wire());
#else
mkOffset.AddWire(TopoDS::Wire(shape));
#endif
mkOffset.Perform(distance);
gp_Trsf mat;
mat.SetTranslation(vec);
BRepBuilderAPI_Transform mkTransform(mkOffset.Shape(),mat);
wire_list.push_back(TopoDS::Wire(mkTransform.Shape()));
BRepOffsetAPI_ThruSections mkGenerator(makeSolid ? Standard_True : Standard_False, Standard_False);
for (std::list<TopoDS_Wire>::const_iterator it = wire_list.begin(); it != wire_list.end(); ++it) {
const TopoDS_Wire &wire = *it;
mkGenerator.AddWire(wire);
}
mkGenerator.Build();
this->Shape.setValue(mkGenerator.Shape());
}
else {
// Now, let's get the TopoDS_Shape
TopoDS_Shape myShape = base->Shape.getValue();
if (myShape.IsNull())
Standard_Failure::Raise("Cannot extrude empty shape");
if (makeSolid && myShape.ShapeType() == TopAbs_WIRE) {
BRepBuilderAPI_MakeFace mkFace(TopoDS::Wire(myShape));
myShape = mkFace.Face();
}
BRepPrimAPI_MakePrism mkPrism(myShape, vec);
TopoDS_Shape swept = mkPrism.Shape();
if (swept.IsNull())
return new App::DocumentObjectExecReturn("Resulting shape is null");
this->Shape.setValue(swept);
}
return App::DocumentObject::StdReturn;
}
catch (Standard_Failure) {