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0001 // Created on: 2001-01-04
0002 // Copyright (c) 2001-2014 OPEN CASCADE SAS
0003 //
0004 // This file is part of Open CASCADE Technology software library.
0005 //
0006 // This library is free software; you can redistribute it and/or modify it under
0007 // the terms of the GNU Lesser General Public License version 2.1 as published
0008 // by the Free Software Foundation, with special exception defined in the file
0009 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0010 // distribution for complete text of the license and disclaimer of any warranty.
0011 //
0012 // Alternatively, this file may be used under the terms of Open CASCADE
0013 // commercial license or contractual agreement.
0014 
0015 #ifndef _Graphic3d_ArrayOfTriangleStrips_HeaderFile
0016 #define _Graphic3d_ArrayOfTriangleStrips_HeaderFile
0017 
0018 #include <Graphic3d_ArrayOfPrimitives.hxx>
0019 
0020 //! Contains triangles strip array definition.
0021 class Graphic3d_ArrayOfTriangleStrips : public Graphic3d_ArrayOfPrimitives
0022 {
0023   DEFINE_STANDARD_RTTIEXT(Graphic3d_ArrayOfTriangleStrips, Graphic3d_ArrayOfPrimitives)
0024 public:
0025 
0026   //! Creates an array of triangle strips (Graphic3d_TOPA_TRIANGLESTRIPS), a polygon can be filled as:
0027   //! 1) Creating a single strip defined with his vertexes, i.e:
0028   //! @code
0029   //!   myArray = Graphic3d_ArrayOfTriangleStrips (7);
0030   //!   myArray->AddVertex (x1, y1, z1);
0031   //!   ....
0032   //!   myArray->AddVertex (x7, y7, z7);
0033   //! @endcode
0034   //! 2) Creating separate strips defined with a predefined number of strips and the number of vertex per strip, i.e:
0035   //! @code
0036   //!   myArray = Graphic3d_ArrayOfTriangleStrips (8, 2);
0037   //!   myArray->AddBound (4);
0038   //!   myArray->AddVertex (x1, y1, z1);
0039   //!   ....
0040   //!   myArray->AddVertex (x4, y4, z4);
0041   //!   myArray->AddBound (4);
0042   //!   myArray->AddVertex (x5, y5, z5);
0043   //!   ....
0044   //!   myArray->AddVertex (x8, y8, z8);
0045   //! @endcode
0046   //! @param theMaxVertexs defines the maximum allowed vertex number in the array
0047   //! @param theMaxStrips  defines the maximum allowed strip  number in the array;
0048   //!                      the number of triangle really drawn is: VertexNumber() - 2 * Min(1, BoundNumber())
0049   //! @param theArrayFlags array flags
0050   Graphic3d_ArrayOfTriangleStrips (Standard_Integer theMaxVertexs,
0051                                    Standard_Integer theMaxStrips,
0052                                    Graphic3d_ArrayFlags theArrayFlags)
0053   : Graphic3d_ArrayOfPrimitives (Graphic3d_TOPA_TRIANGLESTRIPS, theMaxVertexs, theMaxStrips, 0, theArrayFlags) {}
0054 
0055   //! Creates an array of triangle strips (Graphic3d_TOPA_TRIANGLESTRIPS).
0056   //! @param theMaxVertexs defines the maximum allowed vertex number in the array
0057   //! @param theMaxStrips  defines the maximum allowed strip  number in the array;
0058   //!                      the number of triangle really drawn is: VertexNumber() - 2 * Min(1, BoundNumber())
0059   //! @param theHasVNormals when TRUE, AddVertex(Point,Normal), AddVertex(Point,Normal,Color) or AddVertex(Point,Normal,Texel) should be used to specify vertex normal;
0060   //!                       vertex normals should be specified coherent to triangle orientation (defined by order of vertexes within triangle) for proper rendering
0061   //! @param theHasVColors  when TRUE, AddVertex(Point,Color) or AddVertex(Point,Normal,Color) should be used to specify vertex color
0062   //! @param theHasBColors  when TRUE, AddBound(number,Color) should be used to specify sub-group color
0063   //! @param theHasVTexels  when TRUE, AddVertex(Point,Texel) or AddVertex(Point,Normal,Texel) should be used to specify vertex UV coordinates
0064   Graphic3d_ArrayOfTriangleStrips (Standard_Integer theMaxVertexs,
0065                                    Standard_Integer theMaxStrips   = 0,
0066                                    Standard_Boolean theHasVNormals = Standard_False,
0067                                    Standard_Boolean theHasVColors  = Standard_False,
0068                                    Standard_Boolean theHasBColors  = Standard_False,
0069                                    Standard_Boolean theHasVTexels  = Standard_False)
0070   : Graphic3d_ArrayOfPrimitives (Graphic3d_TOPA_TRIANGLESTRIPS, theMaxVertexs, theMaxStrips, 0,
0071                                  (theHasVNormals ? Graphic3d_ArrayFlags_VertexNormal : Graphic3d_ArrayFlags_None)
0072                                | (theHasVColors  ? Graphic3d_ArrayFlags_VertexColor  : Graphic3d_ArrayFlags_None)
0073                                | (theHasVTexels  ? Graphic3d_ArrayFlags_VertexTexel  : Graphic3d_ArrayFlags_None)
0074                                | (theHasBColors  ? Graphic3d_ArrayFlags_BoundColor   : Graphic3d_ArrayFlags_None)) {}
0075 
0076 };
0077 
0078 DEFINE_STANDARD_HANDLE(Graphic3d_ArrayOfTriangleStrips, Graphic3d_ArrayOfPrimitives)
0079 
0080 #endif // _Graphic3d_ArrayOfTriangleStrips_HeaderFile