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1 | // Created on: 1993-09-23 |
2 | // Created by: Jean Louis FRENKEL |
3 | // Copyright (c) 1993-1999 Matra Datavision |
4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
5 | // |
6 | // This file is part of Open CASCADE Technology software library. |
7 | // |
8 | // This library is free software; you can redistribute it and/or modify it under |
9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
10 | // by the Free Software Foundation, with special exception defined in the file |
11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | // distribution for complete text of the license and disclaimer of any warranty. |
13 | // |
14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
16 | |
17 | #ifndef _StdPrs_ShadedShape_HeaderFile |
18 | #define _StdPrs_ShadedShape_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <Prs3d_Root.hxx> |
25 | #include <Prs3d_Drawer.hxx> |
26 | #include <StdPrs_Volume.hxx> |
27 | #include <Standard_Boolean.hxx> |
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28 | |
29 | class Graphic3d_ArrayOfSegments; |
30 | class Graphic3d_ArrayOfTriangles; |
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31 | class Prs3d_Presentation; |
32 | class TopoDS_Shape; |
33 | class gp_Pnt2d; |
34 | class BRep_Builder; |
35 | class TopoDS_Compound; |
36 | |
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37 | //! Auxiliary procedures to prepare Shaded presentation of specified shape. |
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38 | class StdPrs_ShadedShape : public Prs3d_Root |
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39 | { |
40 | public: |
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41 | |
42 | //! Shades <theShape>. |
43 | //! @param theVolumeType defines the way how to interpret input shapes - as Closed volumes (to activate back-face |
44 | //! culling and capping plane algorithms), as Open volumes (shells or solids with holes) |
45 | //! or to perform Autodetection (would split input shape into two groups) |
46 | Standard_EXPORT static void Add (const Handle(Prs3d_Presentation)& thePresentation, const TopoDS_Shape& theShape, const Handle(Prs3d_Drawer)& theDrawer, const StdPrs_Volume theVolume = StdPrs_Volume_Autodetection); |
47 | |
48 | //! Shades <theShape> with texture coordinates. |
49 | //! @param theVolumeType defines the way how to interpret input shapes - as Closed volumes (to activate back-face |
50 | //! culling and capping plane algorithms), as Open volumes (shells or solids with holes) |
51 | //! or to perform Autodetection (would split input shape into two groups) |
52 | Standard_EXPORT static void Add (const Handle(Prs3d_Presentation)& thePresentation, const TopoDS_Shape& theShape, const Handle(Prs3d_Drawer)& theDrawer, const Standard_Boolean theHasTexels, const gp_Pnt2d& theUVOrigin, const gp_Pnt2d& theUVRepeat, const gp_Pnt2d& theUVScale, const StdPrs_Volume theVolume = StdPrs_Volume_Autodetection); |
53 | |
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54 | //! Searches closed and unclosed subshapes in shape structure and puts them |
55 | //! into two compounds for separate processing of closed and unclosed sub-shapes |
56 | Standard_EXPORT static void ExploreSolids (const TopoDS_Shape& theShape, const BRep_Builder& theBuilder, TopoDS_Compound& theClosed, TopoDS_Compound& theOpened, const Standard_Boolean theIgnore1DSubShape); |
57 | |
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58 | //! Computes wireframe presentation for free wires and vertices |
59 | Standard_EXPORT static void AddWireframeForFreeElements (const Handle(Prs3d_Presentation)& thePrs, |
60 | const TopoDS_Shape& theShape, |
61 | const Handle(Prs3d_Drawer)& theDrawer); |
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62 | |
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63 | //! Computes special wireframe presentation for faces without triangulation. |
64 | Standard_EXPORT static void AddWireframeForFacesWithoutTriangles (const Handle(Prs3d_Presentation)& thePrs, |
65 | const TopoDS_Shape& theShape, |
66 | const Handle(Prs3d_Drawer)& theDrawer); |
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67 | |
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68 | public: |
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69 | |
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70 | //! Create primitive array with triangles for specified shape. |
71 | //! @param theShape [in] the shape with precomputed triangulation |
72 | static Handle(Graphic3d_ArrayOfTriangles) FillTriangles (const TopoDS_Shape& theShape) |
73 | { |
74 | gp_Pnt2d aDummy; |
75 | return FillTriangles (theShape, Standard_False, aDummy, aDummy, aDummy); |
76 | } |
77 | |
78 | //! Create primitive array of triangles for specified shape. |
79 | //! @param theShape the shape with precomputed triangulation |
80 | //! @param theHasTexels define UV coordinates in primitive array |
81 | //! @param theUVOrigin origin for UV coordinates |
82 | //! @param theUVRepeat repeat parameters for UV coordinates |
83 | //! @param theUVScale scale coefficients for UV coordinates |
84 | //! @return triangles array or NULL if specified face does not have computed triangulation |
85 | Standard_EXPORT static Handle(Graphic3d_ArrayOfTriangles) FillTriangles (const TopoDS_Shape& theShape, |
86 | const Standard_Boolean theHasTexels, |
87 | const gp_Pnt2d& theUVOrigin, |
88 | const gp_Pnt2d& theUVRepeat, |
89 | const gp_Pnt2d& theUVScale); |
90 | |
91 | //! Define primitive array of boundary segments for specified shape. |
92 | //! @param theShape segments array or NULL if specified face does not have computed triangulation |
93 | Standard_EXPORT static Handle(Graphic3d_ArrayOfSegments) FillFaceBoundaries (const TopoDS_Shape& theShape); |
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94 | |
95 | }; |
96 | |
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97 | #endif // _StdPrs_ShadedShape_HeaderFile |