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colors from python-occ

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This commit is contained in:
Joachim Schoeberl 2021-07-27 20:59:41 +02:00
parent 411a850d41
commit 42c6601aae
4 changed files with 61 additions and 6 deletions
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9
libsrc/occ/occgenmesh.cpp
View File

@ -410,7 +410,14 @@ namespace netgen
}
else
{
mesh.GetFaceDescriptor(facenr).SetSurfColour({0.0,1.0,0.0});
auto it = OCCGeometry::global_shape_cols.find(face.TShape());
if (it != OCCGeometry::global_shape_cols.end())
{
Vec<3> col = it->second;
mesh.GetFaceDescriptor(facenr).SetSurfColour(col);
}
else
mesh.GetFaceDescriptor(facenr).SetSurfColour({0.0,1.0,0.0});
}
if(geom.fnames.Size()>=facenr)

1
libsrc/occ/occgeom.cpp
View File

@ -42,6 +42,7 @@ namespace netgen
{
std::map<Handle(TopoDS_TShape), string> OCCGeometry::global_shape_names;
std::map<Handle(TopoDS_TShape), Vec<3>> OCCGeometry::global_shape_cols;
OCCGeometry::OCCGeometry(const TopoDS_Shape& _shape)

1
libsrc/occ/occgeom.hpp
View File

@ -210,6 +210,7 @@ namespace netgen
public:
static std::map<Handle(TopoDS_TShape), string> global_shape_names;
static std::map<Handle(TopoDS_TShape), Vec<3>> global_shape_cols;
TopoDS_Shape shape;
TopTools_IndexedMapOfShape fmap, emap, vmap, somap, shmap, wmap;

56
libsrc/occ/python_occ.cpp
View File

@ -314,6 +314,18 @@ DLL_HEADER void ExportNgOCC(py::module &m)
return shape;
})
.def_property("col", [](const TopoDS_Shape & self) {
auto it = OCCGeometry::global_shape_cols.find(self.TShape());
Vec<3> col(0.2, 0.2, 0.2);
if (it != OCCGeometry::global_shape_cols.end())
col = it->second;
return std::vector<double> ( { col(0), col(1), col(2) } );
}, [](const TopoDS_Shape & self, std::vector<double> c) {
Vec<3> col(c[0], c[1], c[2]);
OCCGeometry::global_shape_cols[self.TShape()] = col;
})
.def("__add__", [] (const TopoDS_Shape & shape1, const TopoDS_Shape & shape2) {
return BRepAlgoAPI_Fuse(shape1, shape2).Shape();
})
@ -355,7 +367,38 @@ DLL_HEADER void ExportNgOCC(py::module &m)
})
.def("__sub__", [] (const TopoDS_Shape & shape1, const TopoDS_Shape & shape2) {
return BRepAlgoAPI_Cut(shape1, shape2).Shape();
// return BRepAlgoAPI_Cut(shape1, shape2).Shape();
BRepAlgoAPI_Cut builder(shape1, shape2);
#ifdef OCC_HAVE_HISTORY
Handle(BRepTools_History) history = builder.History ();
for (auto s : { shape1, shape2 })
for (TopExp_Explorer e(s, TopAbs_FACE); e.More(); e.Next())
{
const string & name = OCCGeometry::global_shape_names[e.Current().TShape()];
for (auto s : history->Modified(e.Current()))
OCCGeometry::global_shape_names[s.TShape()] = name;
auto it = OCCGeometry::global_shape_cols.find(e.Current().TShape());
if (it != OCCGeometry::global_shape_cols.end())
for (auto s : history->Modified(e.Current()))
OCCGeometry::global_shape_cols[s.TShape()] = it->second;
}
/*
for (TopExp_Explorer e(shape2, TopAbs_FACE); e.More(); e.Next())
{
auto it = OCCGeometry::global_shape_cols[e.Current().TShape()];
if (it != OCCGeometry::global_shape_cols.end())
for (auto s : history->Modified(e.Current()))
OCCGeometry::global_shape_cols[s.TShape()] = it->second;
}
*/
#endif // OCC_HAVE_HISTORY
return builder.Shape();
})
;
@ -376,8 +419,12 @@ DLL_HEADER void ExportNgOCC(py::module &m)
{
BOPAlgo_Builder builder;
for (auto & s : shapes)
for (TopExp_Explorer e(s, TopAbs_SOLID); e.More(); e.Next())
builder.AddArgument(e.Current());
{
for (TopExp_Explorer e(s, TopAbs_SOLID); e.More(); e.Next())
builder.AddArgument(e.Current());
if (s.ShapeType() == TopAbs_FACE)
builder.AddArgument(s);
}
builder.Perform();
@ -388,8 +435,7 @@ DLL_HEADER void ExportNgOCC(py::module &m)
for (TopExp_Explorer e(s, TopAbs_SOLID); e.More(); e.Next())
{
auto name = OCCGeometry::global_shape_names[e.Current().TShape()];
TopTools_ListOfShape modlist = history->Modified(e.Current());
for (auto mods : modlist)
for (auto mods : history->Modified(e.Current()))
OCCGeometry::global_shape_names[mods.TShape()] = name;
}
#endif // OCC_HAVE_HISTORY