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Implementation of 2.6.3/2.6.4 improvements

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ema 2014-11-25 15:50:47 +03:00
parent e957479789
commit e7cf13445b
2 changed files with 83 additions and 1 deletions
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80
src/OCC2VTK/OCC2VTK_Tools.cxx
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@ -35,6 +35,12 @@
#include <TopoDS.hxx> #include <TopoDS.hxx>
#include <TopTools_ListOfShape.hxx> #include <TopTools_ListOfShape.hxx>
#include <TopExp.hxx>
#include <vtkAppendPolyData.h>
#include <vtkPolyData.h>
#include <BRepBuilderAPI_Copy.hxx>
#define MAX2(X, Y) (Abs(X) > Abs(Y) ? Abs(X) : Abs(Y)) #define MAX2(X, Y) (Abs(X) > Abs(Y) ? Abs(X) : Abs(Y))
#define MAX3(X, Y, Z) (MAX2(MAX2(X,Y), Z)) #define MAX3(X, Y, Z) (MAX2(MAX2(X,Y), Z))
@ -159,4 +165,78 @@ namespace GEOM
} }
} }
} }
vtkPolyData* GetData(const TopoDS_Shape& theShape, float theDeflection)
{
BRepBuilderAPI_Copy aCopy(theShape);
if(!aCopy.IsDone())
{
return 0;
}
TopoDS_Shape aShape = aCopy.Shape();
try
{
GEOM_VertexSource* myVertexSource = GEOM_VertexSource::New();
GEOM_EdgeSource* myIsolatedEdgeSource = GEOM_EdgeSource::New();
GEOM_EdgeSource* myOneFaceEdgeSource = GEOM_EdgeSource::New();
GEOM_EdgeSource* mySharedEdgeSource = GEOM_EdgeSource::New();
GEOM_WireframeFace* myWireframeFaceSource = GEOM_WireframeFace::New();
GEOM_ShadingFace* myShadingFaceSource = GEOM_ShadingFace::New();
vtkAppendPolyData* myAppendFilter = vtkAppendPolyData::New();
myAppendFilter->AddInputConnection( myVertexSource->GetOutputPort() );
myAppendFilter->AddInputConnection( myIsolatedEdgeSource->GetOutputPort() );
myAppendFilter->AddInputConnection( myOneFaceEdgeSource->GetOutputPort() );
myAppendFilter->AddInputConnection( mySharedEdgeSource->GetOutputPort() );
myAppendFilter->AddInputConnection( myShadingFaceSource->GetOutputPort() );
bool anIsVector = false;
// Is shape triangulated?
bool wasMeshed = true;
TopExp_Explorer ex;
TopLoc_Location aLoc;
for (ex.Init(aShape, TopAbs_FACE); ex.More(); ex.Next())
{
const TopoDS_Face& aFace = TopoDS::Face(ex.Current());
Handle(Poly_Triangulation) aPoly = BRep_Tool::Triangulation(aFace,aLoc);
if(aPoly.IsNull())
{
wasMeshed = false;
break;
}
}
GEOM::MeshShape( aShape, theDeflection );
TopExp_Explorer aVertexExp( aShape, TopAbs_VERTEX );
for( ; aVertexExp.More(); aVertexExp.Next() )
{
const TopoDS_Vertex& aVertex = TopoDS::Vertex( aVertexExp.Current() );
myVertexSource->AddVertex( aVertex );
}
TopTools_IndexedDataMapOfShapeListOfShape anEdgeMap;
TopExp::MapShapesAndAncestors( aShape, TopAbs_EDGE, TopAbs_FACE, anEdgeMap );
GEOM::SetShape( aShape,
anEdgeMap,
anIsVector,
0,
myIsolatedEdgeSource,
myOneFaceEdgeSource,
mySharedEdgeSource,
myWireframeFaceSource,
myShadingFaceSource );
myAppendFilter->Update();
return myAppendFilter->GetOutput();
}
catch(Standard_Failure)
{
return 0;
}
}
} }

4
src/OCC2VTK/OCC2VTK_Tools.h
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@ -29,7 +29,7 @@ class GEOM_VertexSource;
class GEOM_EdgeSource; class GEOM_EdgeSource;
class GEOM_WireframeFace; class GEOM_WireframeFace;
class GEOM_ShadingFace; class GEOM_ShadingFace;
class vtkPolyData;
namespace GEOM namespace GEOM
{ {
// moved from GEOM_AssemblyBuilder // moved from GEOM_AssemblyBuilder
@ -47,6 +47,8 @@ namespace GEOM
GEOM_EdgeSource* theSharedEdgeSource, GEOM_EdgeSource* theSharedEdgeSource,
GEOM_WireframeFace* theWireframeFaceSource, GEOM_WireframeFace* theWireframeFaceSource,
GEOM_ShadingFace* theShadingFaceSource); GEOM_ShadingFace* theShadingFaceSource);
OCC2VTK_EXPORT vtkPolyData* GetData(const TopoDS_Shape& theShape, float theDeflection);
} }
#endif // OCC2VTK_TOOLS_H #endif // OCC2VTK_TOOLS_H