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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 | |
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20 | #include <GeomAbs_Shape.hxx> |
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21 | #include <Prs3d_Root.hxx> |
22 | #include <Prs3d_Drawer.hxx> |
23 | #include <StdPrs_Volume.hxx> |
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24 | |
25 | class Graphic3d_ArrayOfSegments; |
26 | class Graphic3d_ArrayOfTriangles; |
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27 | class TopoDS_Shape; |
28 | class gp_Pnt2d; |
29 | class BRep_Builder; |
30 | class TopoDS_Compound; |
31 | |
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32 | //! Auxiliary procedures to prepare Shaded presentation of specified shape. |
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33 | class StdPrs_ShadedShape : public Prs3d_Root |
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34 | { |
35 | public: |
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36 | |
37 | //! Shades <theShape>. |
38 | //! @param theVolumeType defines the way how to interpret input shapes - as Closed volumes (to activate back-face |
39 | //! culling and capping plane algorithms), as Open volumes (shells or solids with holes) |
40 | //! or to perform Autodetection (would split input shape into two groups) |
41 | 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); |
42 | |
43 | //! Shades <theShape> with texture coordinates. |
44 | //! @param theVolumeType defines the way how to interpret input shapes - as Closed volumes (to activate back-face |
45 | //! culling and capping plane algorithms), as Open volumes (shells or solids with holes) |
46 | //! or to perform Autodetection (would split input shape into two groups) |
47 | 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); |
48 | |
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49 | //! Searches closed and unclosed subshapes in shape structure and puts them |
50 | //! into two compounds for separate processing of closed and unclosed sub-shapes |
51 | Standard_EXPORT static void ExploreSolids (const TopoDS_Shape& theShape, const BRep_Builder& theBuilder, TopoDS_Compound& theClosed, TopoDS_Compound& theOpened, const Standard_Boolean theIgnore1DSubShape); |
52 | |
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53 | //! Computes wireframe presentation for free wires and vertices |
54 | Standard_EXPORT static void AddWireframeForFreeElements (const Handle(Prs3d_Presentation)& thePrs, |
55 | const TopoDS_Shape& theShape, |
56 | const Handle(Prs3d_Drawer)& theDrawer); |
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57 | |
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58 | //! Computes special wireframe presentation for faces without triangulation. |
59 | Standard_EXPORT static void AddWireframeForFacesWithoutTriangles (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 | public: |
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64 | |
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65 | //! Create primitive array with triangles for specified shape. |
66 | //! @param theShape [in] the shape with precomputed triangulation |
67 | static Handle(Graphic3d_ArrayOfTriangles) FillTriangles (const TopoDS_Shape& theShape) |
68 | { |
69 | gp_Pnt2d aDummy; |
70 | return FillTriangles (theShape, Standard_False, aDummy, aDummy, aDummy); |
71 | } |
72 | |
73 | //! Create primitive array of triangles for specified shape. |
74 | //! @param theShape the shape with precomputed triangulation |
75 | //! @param theHasTexels define UV coordinates in primitive array |
76 | //! @param theUVOrigin origin for UV coordinates |
77 | //! @param theUVRepeat repeat parameters for UV coordinates |
78 | //! @param theUVScale scale coefficients for UV coordinates |
79 | //! @return triangles array or NULL if specified face does not have computed triangulation |
80 | Standard_EXPORT static Handle(Graphic3d_ArrayOfTriangles) FillTriangles (const TopoDS_Shape& theShape, |
81 | const Standard_Boolean theHasTexels, |
82 | const gp_Pnt2d& theUVOrigin, |
83 | const gp_Pnt2d& theUVRepeat, |
84 | const gp_Pnt2d& theUVScale); |
85 | |
86 | //! Define primitive array of boundary segments for specified shape. |
87 | //! @param theShape segments array or NULL if specified face does not have computed triangulation |
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88 | //! @param theUpperContinuity the most edge continuity class to be included to result (edges with more continuity will be ignored) |
89 | Standard_EXPORT static Handle(Graphic3d_ArrayOfSegments) FillFaceBoundaries (const TopoDS_Shape& theShape, |
90 | GeomAbs_Shape theUpperContinuity = GeomAbs_CN); |
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91 | |
92 | }; |
93 | |
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94 | #endif // _StdPrs_ShadedShape_HeaderFile |