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1 | // Created on: 2016-02-04 |
2 | // Created by: Anastasia BORISOVA |
3 | // Copyright (c) 2016 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 | |
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16 | #include <Prs3d_ToolSphere.hxx> |
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17 | |
18 | #include <Graphic3d_ArrayOfTriangles.hxx> |
19 | #include <Poly_Array1OfTriangle.hxx> |
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20 | #include <Prs3d_ToolQuadric.hxx> |
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21 | |
22 | //======================================================================= |
23 | //function : Constructor |
24 | //purpose : |
25 | //======================================================================= |
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26 | Prs3d_ToolSphere::Prs3d_ToolSphere (const Standard_Real theRadius, |
27 | const Standard_Integer theNbSlices, |
28 | const Standard_Integer theNbStacks) |
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29 | : myRadius (theRadius) |
30 | { |
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31 | mySlicesNb = theNbSlices; |
32 | myStacksNb = theNbStacks; |
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33 | } |
34 | |
35 | //======================================================================= |
36 | //function : Vertex |
37 | //purpose : |
38 | //======================================================================= |
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39 | gp_Pnt Prs3d_ToolSphere::Vertex (const Standard_Real theU, const Standard_Real theV) |
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40 | { |
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41 | const Standard_Real aU = theU * M_PI * 2.0; |
42 | const Standard_Real aV = theV * M_PI; |
43 | return gp_Pnt (myRadius * Cos (aU) * Sin (aV), |
44 | -myRadius * Sin (aU) * Sin (aV), |
45 | myRadius * Cos (aV)); |
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46 | } |
47 | |
48 | //======================================================================= |
49 | //function : Add |
50 | //purpose : |
51 | //======================================================================= |
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52 | gp_Dir Prs3d_ToolSphere::Normal (const Standard_Real theU, const Standard_Real theV) |
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53 | { |
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54 | const Standard_Real aU = theU * M_PI * 2.0; |
55 | const Standard_Real aV = theV * M_PI; |
56 | return gp_Dir (Cos (aU) * Sin (aV), |
57 | -Sin (aU) * Sin (aV), |
58 | Cos (aV)); |
59 | } |
60 | |
61 | //======================================================================= |
62 | //function : Perform |
63 | //purpose : |
64 | //======================================================================= |
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65 | Handle(Graphic3d_ArrayOfTriangles) Prs3d_ToolSphere::Create (const Standard_Real theRadius, |
66 | const Standard_Integer theNbSlices, |
67 | const Standard_Integer theNbStacks, |
68 | const gp_Trsf& theTrsf) |
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69 | { |
70 | Handle(Graphic3d_ArrayOfTriangles) anArray; |
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71 | Prs3d_ToolSphere aTool (theRadius, theNbSlices, theNbStacks); |
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72 | aTool.FillArray (anArray, theTrsf); |
73 | return anArray; |
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74 | } |