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support face colors when writing in OpenInventor format

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This commit is contained in:
wmayer
2019-01-12 15:06:25 +01:00
parent 94c28e9fc8
commit 4f10d2fac9
4 changed files with 40 additions and 10 deletions
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22
src/Mod/Part/App/TopoShape.cpp
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@@ -184,7 +184,7 @@
#include <Base/Exception.h>
#include <Base/Tools.h>
#include <Base/Console.h>
#include <App/Material.h>
#include "TopoShape.h"
#include "CrossSection.h"
@@ -826,13 +826,22 @@ void TopoShape::exportStl(const char *filename, double deflection) const
writer.Write(this->_Shape,encodeFilename(filename).c_str());
}
void TopoShape::exportFaceSet(double dev, double ca, std::ostream& str) const
void TopoShape::exportFaceSet(double dev, double ca,
const std::vector<App::Color>& colors,
std::ostream& str) const
{
Base::InventorBuilder builder(str);
TopExp_Explorer ex;
BRepMesh_IncrementalMesh MESH(this->_Shape,dev);
std::size_t numFaces = 0;
for (ex.Init(this->_Shape, TopAbs_FACE); ex.More(); ex.Next()) {
numFaces++;
}
bool supportFaceColors = (numFaces == colors.size());
std::size_t index=0;
BRepMesh_IncrementalMesh MESH(this->_Shape,dev);
for (ex.Init(this->_Shape, TopAbs_FACE); ex.More(); ex.Next(), index++) {
// get the shape and mesh it
const TopoDS_Face& aFace = TopoDS::Face(ex.Current());
Standard_Integer nbNodesInFace,nbTriInFace;
@@ -898,6 +907,11 @@ void TopoShape::exportFaceSet(double dev, double ca, std::ostream& str) const
builder.beginSeparator();
builder.addShapeHints((float)ca);
if (supportFaceColors) {
App::Color c = colors[index];
builder.addMaterial(c.r, c.g, c.b, c.a);
}
builder.beginPoints();
builder.addPoints(vertices);
builder.endPoints();