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GLTF Export - Edge and Vertex support Open-Cascade-SAS#243
Added functionality to export TopoDS_Vertex and TopoDS_Edge to GLTF format
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Jan 17, 2025
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| // Copyright (c) 2025 OPEN CASCADE SAS | ||
| // | ||
| // This file is part of Open CASCADE Technology software library. | ||
| // | ||
| // This library is free software; you can redistribute it and/or modify it under | ||
| // the terms of the GNU Lesser General Public License version 2.1 as published | ||
| // by the Free Software Foundation, with special exception defined in the file | ||
| // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | ||
| // distribution for complete text of the license and disclaimer of any warranty. | ||
| // | ||
| // Alternatively, this file may be used under the terms of Open CASCADE | ||
| // commercial license or contractual agreement. | ||
|
|
||
| #include <RWMesh_EdgeIterator.hxx> | ||
|
|
||
| #include <BRep_Tool.hxx> | ||
| #include <TopExp.hxx> | ||
| #include <TopoDS.hxx> | ||
| #include <XCAFDoc_ShapeTool.hxx> | ||
| #include <XCAFPrs.hxx> | ||
|
|
||
| // ======================================================================= | ||
| // function : RWMesh_EdgeIterator | ||
| // purpose : | ||
| // ======================================================================= | ||
| RWMesh_EdgeIterator::RWMesh_EdgeIterator(const TDF_Label& theLabel, | ||
| const TopLoc_Location& theLocation, | ||
| const Standard_Boolean theToMapColors, | ||
| const XCAFPrs_Style& theStyle) | ||
| : RWMesh_ShapeIterator(theLabel, theLocation, TopAbs_EDGE, theToMapColors, theStyle) | ||
| { | ||
| Next(); | ||
| } | ||
|
|
||
| // ======================================================================= | ||
| // function : RWMesh_EdgeIterator | ||
| // purpose : | ||
| // ======================================================================= | ||
| RWMesh_EdgeIterator::RWMesh_EdgeIterator(const TopoDS_Shape& theShape, | ||
| const XCAFPrs_Style& theStyle) | ||
| : RWMesh_ShapeIterator(theShape, TopAbs_EDGE, theStyle) | ||
| { | ||
| Next(); | ||
| } | ||
|
|
||
| // ======================================================================= | ||
| // function : Next | ||
| // purpose : | ||
| // ======================================================================= | ||
| void RWMesh_EdgeIterator::Next() | ||
| { | ||
| for (; myIter.More(); myIter.Next()) | ||
| { | ||
| myEdge = TopoDS::Edge(myIter.Current()); | ||
| myPolygon3D = BRep_Tool::Polygon3D(myEdge, myLocation); | ||
| myTrsf = myLocation.Transformation(); | ||
| if (myPolygon3D.IsNull() || myPolygon3D->NbNodes() == 0) | ||
| { | ||
| resetEdge(); | ||
| continue; | ||
| } | ||
|
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| initEdge(); | ||
| myIter.Next(); | ||
| return; | ||
| } | ||
|
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| resetEdge(); | ||
| } | ||
|
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| // ======================================================================= | ||
| // function : initEdge | ||
| // purpose : | ||
| // ======================================================================= | ||
| void RWMesh_EdgeIterator::initEdge() | ||
| { | ||
| initShape(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| // Copyright (c) 2025 OPEN CASCADE SAS | ||
| // | ||
| // This file is part of Open CASCADE Technology software library. | ||
| // | ||
| // This library is free software; you can redistribute it and/or modify it under | ||
| // the terms of the GNU Lesser General Public License version 2.1 as published | ||
| // by the Free Software Foundation, with special exception defined in the file | ||
| // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | ||
| // distribution for complete text of the license and disclaimer of any warranty. | ||
| // | ||
| // Alternatively, this file may be used under the terms of Open CASCADE | ||
| // commercial license or contractual agreement. | ||
|
|
||
| #ifndef _RWMesh_EdgeIterator_HeaderFile | ||
| #define _RWMesh_EdgeIterator_HeaderFile | ||
|
|
||
| #include <NCollection_DataMap.hxx> | ||
| #include <Poly_Polygon3D.hxx> | ||
| #include <RWMesh_ShapeIterator.hxx> | ||
| #include <TopExp_Explorer.hxx> | ||
| #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx> | ||
| #include <TopoDS_Edge.hxx> | ||
| #include <XCAFPrs_Style.hxx> | ||
| #include <gp_Trsf.hxx> | ||
|
|
||
| #include <algorithm> | ||
|
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| class TDF_Label; | ||
|
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| //! Auxiliary class to iterate through edges. | ||
| //! Provides functionality to iterate through the edges of a shape. | ||
| //! It inherits from `RWMesh_ShapeIterator` and implements | ||
| //! methods to access and manipulate edge data. | ||
| class RWMesh_EdgeIterator : public RWMesh_ShapeIterator | ||
| { | ||
| public: | ||
| //! Main constructor. | ||
| //! @param[in] theLabel The label of the shape. | ||
| //! @param[in] theLocation The location of the shape. | ||
| //! @param[in] theToMapColors Flag to indicate if colors should be mapped. | ||
| //! @param[in] theStyle The style of the shape. | ||
| Standard_EXPORT RWMesh_EdgeIterator(const TDF_Label& theLabel, | ||
| const TopLoc_Location& theLocation, | ||
| const Standard_Boolean theToMapColors = false, | ||
| const XCAFPrs_Style& theStyle = XCAFPrs_Style()); | ||
|
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| //! Auxiliary constructor. | ||
| //! @param[in] theShape The shape to iterate. | ||
| //! @param[in] theStyle The style of the shape. | ||
| Standard_EXPORT RWMesh_EdgeIterator(const TopoDS_Shape& theShape, | ||
| const XCAFPrs_Style& theStyle = XCAFPrs_Style()); | ||
|
|
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| //! Return true if iterator points to the valid triangulation. | ||
| bool More() const Standard_OVERRIDE { return !myPolygon3D.IsNull(); } | ||
|
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| //! Find next value. | ||
| Standard_EXPORT void Next() Standard_OVERRIDE; | ||
|
|
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| //! Return current edge. | ||
| const TopoDS_Edge& Edge() const { return myEdge; } | ||
|
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| //! Return current edge. | ||
| const TopoDS_Shape& Shape() const Standard_OVERRIDE { return myEdge; } | ||
|
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| //! Return current edge data. | ||
| const Handle(Poly_Polygon3D)& Polygon3D() const { return myPolygon3D; } | ||
|
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| //! Return true if geometry data is defined. | ||
| bool IsEmpty() const Standard_OVERRIDE | ||
| { | ||
| return myPolygon3D.IsNull() || myPolygon3D->NbNodes() < 1; | ||
| } | ||
|
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| public: | ||
| //! Lower element index in current triangulation. | ||
| Standard_Integer ElemLower() const Standard_OVERRIDE { return 1; } | ||
|
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| //! Upper element index in current triangulation. | ||
| Standard_Integer ElemUpper() const Standard_OVERRIDE { return myPolygon3D->NbNodes(); } | ||
|
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| public: | ||
| //! Return number of nodes for the current edge. | ||
| Standard_Integer NbNodes() const Standard_OVERRIDE | ||
| { | ||
| return !myPolygon3D.IsNull() ? myPolygon3D->NbNodes() : 0; | ||
| } | ||
|
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| //! Lower node index in current triangulation. | ||
| Standard_Integer NodeLower() const Standard_OVERRIDE { return 1; } | ||
|
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| //! Upper node index in current triangulation. | ||
| Standard_Integer NodeUpper() const Standard_OVERRIDE { return myPolygon3D->NbNodes(); } | ||
|
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| public: | ||
| //! Return the node with specified index with applied transformation. | ||
| gp_Pnt node(const Standard_Integer theNode) const Standard_OVERRIDE | ||
| { | ||
| return myPolygon3D->Nodes().Value(theNode); | ||
| } | ||
|
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| private: | ||
| //! Reset information for current edge. | ||
| void resetEdge() | ||
| { | ||
| myPolygon3D.Nullify(); | ||
| myEdge.Nullify(); | ||
| resetShape(); | ||
| } | ||
|
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| //! Initialize edge properties. | ||
| void initEdge(); | ||
|
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| private: | ||
| TopoDS_Edge myEdge; //!< current edge | ||
| Handle(Poly_Polygon3D) myPolygon3D; //!< geometry of current edge | ||
| }; | ||
|
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| #endif // _RWMesh_EdgeIterator_HeaderFile |
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