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1 | // Created on: 2009-12-10 |
2 | // Created by: Paul SUPRYATKIN |
3 | // Copyright (c) 2009-2014 OPEN CASCADE SAS |
4 | // |
5 | // This file is part of Open CASCADE Technology software library. |
6 | // |
7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
12 | // |
13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
15 | |
16 | #ifndef _AIS_Triangulation_HeaderFile |
17 | #define _AIS_Triangulation_HeaderFile |
18 | |
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19 | #include <TColStd_HArray1OfInteger.hxx> |
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20 | #include <AIS_InteractiveObject.hxx> |
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21 | |
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22 | class Poly_Triangulation; |
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23 | |
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24 | DEFINE_STANDARD_HANDLE(AIS_Triangulation, AIS_InteractiveObject) |
25 | |
26 | //! Interactive object that draws data from Poly_Triangulation, optionally with colors associated |
27 | //! with each triangulation vertex. For maximum efficiency colors are represented as 32-bit integers |
28 | //! instead of classic Quantity_Color values. |
29 | //! Interactive selection of triangles and vertices is not yet implemented. |
30 | class AIS_Triangulation : public AIS_InteractiveObject |
31 | { |
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32 | DEFINE_STANDARD_RTTIEXT(AIS_Triangulation, AIS_InteractiveObject) |
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33 | public: |
34 | |
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35 | //! Constructs the Triangulation display object |
36 | Standard_EXPORT AIS_Triangulation(const Handle(Poly_Triangulation)& aTriangulation); |
37 | |
38 | |
39 | //! Set the color for each node. |
40 | //! Each 32-bit color is Alpha << 24 + Blue << 16 + Green << 8 + Red |
41 | //! Order of color components is essential for further usage by OpenGL |
42 | Standard_EXPORT void SetColors (const Handle(TColStd_HArray1OfInteger)& aColor); |
43 | |
44 | |
45 | //! Get the color for each node. |
46 | //! Each 32-bit color is Alpha << 24 + Blue << 16 + Green << 8 + Red |
47 | Standard_EXPORT Handle(TColStd_HArray1OfInteger) GetColors() const; |
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48 | |
49 | //! Returns true if triangulation has vertex colors. |
50 | Standard_Boolean HasVertexColors() const |
51 | { |
52 | return (myFlagColor == 1); |
53 | } |
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54 | |
55 | Standard_EXPORT void SetTriangulation (const Handle(Poly_Triangulation)& aTriangulation); |
56 | |
57 | //! Returns Poly_Triangulation . |
58 | Standard_EXPORT Handle(Poly_Triangulation) GetTriangulation() const; |
59 | |
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60 | //! Sets the value aValue for transparency in the reconstructed compound shape. |
61 | Standard_EXPORT virtual void SetTransparency (const Standard_Real aValue = 0.6) Standard_OVERRIDE; |
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62 | |
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63 | //! Removes the setting for transparency in the reconstructed compound shape. |
64 | Standard_EXPORT virtual void UnsetTransparency() Standard_OVERRIDE; |
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65 | |
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66 | protected: |
67 | |
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68 | Standard_EXPORT void updatePresentation(); |
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69 | |
70 | |
71 | |
72 | private: |
73 | |
74 | |
75 | Standard_EXPORT virtual void Compute (const Handle(PrsMgr_PresentationManager3d)& aPresentationManager, const Handle(Prs3d_Presentation)& aPresentation, const Standard_Integer aMode = 0) Standard_OVERRIDE; |
76 | |
77 | Standard_EXPORT virtual void ComputeSelection (const Handle(SelectMgr_Selection)& aSelection, const Standard_Integer aMode) Standard_OVERRIDE; |
78 | |
79 | //! Attenuates 32-bit color by a given attenuation factor (0...1): |
80 | //! aColor = Alpha << 24 + Blue << 16 + Green << 8 + Red |
81 | //! All color components are multiplied by aComponent, the result is then packed again as 32-bit integer. |
82 | //! Color attenuation is applied to the vertex colors in order to have correct visual result |
83 | //! after glColorMaterial(GL_AMBIENT_AND_DIFFUSE). Without it, colors look unnatural and flat. |
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84 | Standard_EXPORT Graphic3d_Vec4ub attenuateColor (const Standard_Integer theColor, const Standard_Real theComponent); |
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85 | |
86 | Handle(Poly_Triangulation) myTriangulation; |
87 | Handle(TColStd_HArray1OfInteger) myColor; |
88 | Standard_Integer myFlagColor; |
89 | Standard_Integer myNbNodes; |
90 | Standard_Integer myNbTriangles; |
91 | |
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92 | }; |
93 | |
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94 | #endif // _AIS_Triangulation_HeaderFile |