0031124: Configuration - linker errors when building with CLang on Windows
[occt.git] / src / RWObj / RWObj_TriangulationReader.hxx
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4151c94d 1// Author: Kirill Gavrilov
2// Copyright (c) 2019 OPEN CASCADE SAS
3//
4// This file is part of Open CASCADE Technology software library.
5//
6// This library is free software; you can redistribute it and/or modify it under
7// the terms of the GNU Lesser General Public License version 2.1 as published
8// by the Free Software Foundation, with special exception defined in the file
9// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
10// distribution for complete text of the license and disclaimer of any warranty.
11//
12// Alternatively, this file may be used under the terms of Open CASCADE
13// commercial license or contractual agreement.
14
15#ifndef _RWObj_TriangulationReader_HeaderFile
16#define _RWObj_TriangulationReader_HeaderFile
17
18#include <RWObj_Reader.hxx>
19
20#include <Poly_Triangulation.hxx>
21#include <TopoDS_Compound.hxx>
22
23//! Interface to store shape attributes into document.
24class RWObj_IShapeReceiver
25{
26public:
27 //! @param theShape shape to register
28 //! @param theName shape name
29 //! @param theMaterial shape material
30 //! @param theIsRootShape indicates that this is a root object (free shape)
31 virtual void BindNamedShape (const TopoDS_Shape& theShape,
32 const TCollection_AsciiString& theName,
33 const RWObj_Material* theMaterial,
34 const Standard_Boolean theIsRootShape) = 0;
35};
36
37//! RWObj_Reader implementation dumping OBJ file into Poly_Triangulation.
38class RWObj_TriangulationReader : public RWObj_Reader
39{
40 DEFINE_STANDARD_RTTIEXT(RWObj_TriangulationReader, RWObj_Reader)
41public:
42
43 //! Constructor.
44 RWObj_TriangulationReader() : myShapeReceiver (NULL), myToCreateShapes (Standard_True) {}
45
46 //! Set flag to create shapes.
47 void SetCreateShapes (Standard_Boolean theToCreateShapes) { myToCreateShapes = theToCreateShapes; }
48
49 //! Set shape receiver callback.
50 void SetShapeReceiver (RWObj_IShapeReceiver* theReceiver) { myShapeReceiver = theReceiver; }
51
52 //! Create Poly_Triangulation from collected data
53 Standard_EXPORT virtual Handle(Poly_Triangulation) GetTriangulation();
54
55 //! Return result shape.
56 Standard_EXPORT TopoDS_Shape ResultShape();
57
58protected:
59
60 //! Flush active sub-mesh.
61 Standard_EXPORT virtual Standard_Boolean addMesh (const RWObj_SubMesh& theMesh,
62 const RWObj_SubMeshReason theReason) Standard_OVERRIDE;
63
64 //! Retrieve sub-mesh node position.
65 virtual gp_Pnt getNode (Standard_Integer theIndex) const Standard_OVERRIDE
66 {
67 return myNodes.Value (theIndex - 1);
68 }
69
70 //! Add new node.
71 virtual Standard_Integer addNode (const gp_Pnt& thePnt) Standard_OVERRIDE
72 {
73 myNodes.Append (thePnt);
74 return myNodes.Size();
75 }
76
77 //! Ignore normal.
78 virtual void setNodeNormal (const Standard_Integer theIndex,
79 const Graphic3d_Vec3& theNormal) Standard_OVERRIDE
80 {
81 myNormals.SetValue (theIndex - 1, theNormal);
82 }
83
84 //! Ignore texture coordinates.
85 virtual void setNodeUV (const Standard_Integer theIndex,
86 const Graphic3d_Vec2& theUV) Standard_OVERRIDE
87 {
88 myNodesUV.SetValue (theIndex - 1, theUV);
89 }
90
91 //! Add element.
92 virtual void addElement (Standard_Integer theN1, Standard_Integer theN2, Standard_Integer theN3, Standard_Integer theN4) Standard_OVERRIDE
93 {
94 myTriangles.Append (Poly_Triangle (theN1, theN2, theN3));
95 if (theN4 != -1)
96 {
97 myTriangles.Append (Poly_Triangle (theN1, theN3, theN4));
98 }
99 }
100
101protected:
102
103 //! Add sub-shape into specified shape
104 Standard_EXPORT Standard_Boolean addSubShape (TopoDS_Shape& theParent,
105 const TopoDS_Shape& theSubShape,
106 const Standard_Boolean theToExpandCompound);
107
108protected:
109
110 NCollection_Vector<gp_Pnt> myNodes; //!< nodes of currently filled triangulation
111 NCollection_Vector<Graphic3d_Vec3> myNormals; //!< normals of currently filled triangulation
112 NCollection_Vector<Graphic3d_Vec2> myNodesUV; //!< UVs of currently filled triangulation
113 NCollection_Vector<Poly_Triangle> myTriangles; //!< indexes of currently filled triangulation
114
115 RWObj_IShapeReceiver* myShapeReceiver; //!< optional shape receiver
116 TopoDS_Compound myResultShape; //!< result shape as Compound of objects
117 TopoDS_Compound myLastObjectShape; //!< Compound containing current object groups
118 TopoDS_Shape myLastGroupShape; //!< current group shape - either a single Face or Compound of Faces
119 TCollection_AsciiString myLastGroupName; //!< current group name
d9dd0754 120 TCollection_AsciiString myLastFaceMaterial;//!< last face material name
4151c94d 121 Standard_Boolean myToCreateShapes; //!< create a single triangulation
122
123};
124
125#endif // _RWObj_TriangulationReader_HeaderFile