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1 | // Created by: GG |
2 | // Copyright (c) 1991-1999 Matra Datavision |
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3 | // Copyright (c) 1999-2013 OPEN CASCADE SAS |
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4 | // |
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5 | // This file is part of Open CASCADE Technology software library. |
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6 | // |
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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 |
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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. |
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12 | // |
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13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
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15 | |
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16 | #include <V3d_Plane.hxx> |
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17 | #include <Graphic3d_Group.hxx> |
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18 | #include <Graphic3d_AspectFillArea3d.hxx> |
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19 | #include <Graphic3d_ArrayOfQuadrangles.hxx> |
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20 | #include <gp_Pln.hxx> |
21 | |
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22 | IMPLEMENT_STANDARD_RTTIEXT(V3d_Plane,Standard_Transient) |
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23 | |
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24 | // ======================================================================= |
25 | // function : V3d_Plane |
26 | // purpose : |
27 | // ======================================================================= |
28 | V3d_Plane::V3d_Plane (const Standard_Real theA, |
29 | const Standard_Real theB, |
30 | const Standard_Real theC, |
31 | const Standard_Real theD) |
32 | : myGraphicStructure(), |
33 | myPlane (new Graphic3d_ClipPlane (gp_Pln (theA, theB, theC, theD))) |
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34 | { |
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35 | } |
36 | |
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37 | // ======================================================================= |
38 | // function : V3d_Plane |
39 | // purpose : |
40 | // ======================================================================= |
41 | void V3d_Plane::SetPlane (const Standard_Real theA, |
42 | const Standard_Real theB, |
43 | const Standard_Real theC, |
44 | const Standard_Real theD) |
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45 | { |
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46 | myPlane->SetEquation (gp_Pln (theA, theB, theC, theD)); |
47 | if (IsDisplayed()) |
48 | { |
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49 | Update(); |
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50 | } |
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51 | } |
52 | |
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53 | // ======================================================================= |
54 | // function : Display |
55 | // purpose : |
56 | // ======================================================================= |
57 | void V3d_Plane::Display (const Handle(V3d_View)& theView, |
58 | const Quantity_Color& theColor) |
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59 | { |
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60 | Handle(V3d_Viewer) aViewer = theView->Viewer(); |
61 | if (!myGraphicStructure.IsNull()) |
62 | { |
63 | myGraphicStructure->Clear(); |
64 | } |
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65 | |
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66 | myGraphicStructure = new Graphic3d_Structure (aViewer->StructureManager()); |
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67 | Handle(Graphic3d_Group) aGroup = myGraphicStructure->NewGroup(); |
68 | Handle(Graphic3d_AspectFillArea3d) anAsp = new Graphic3d_AspectFillArea3d(); |
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69 | Graphic3d_MaterialAspect aPlastic (Graphic3d_NOM_PLASTIC); |
70 | aPlastic.SetColor (theColor); |
71 | aPlastic.SetTransparency (0.5); |
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72 | anAsp->SetFrontMaterial (aPlastic); |
73 | anAsp->SetInteriorStyle (Aspect_IS_HATCH); |
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74 | anAsp->SetHatchStyle (new Graphic3d_HatchStyle (Aspect_HS_GRID_DIAGONAL_WIDE)); |
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75 | aGroup->SetGroupPrimitivesAspect (anAsp); |
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76 | |
77 | const Standard_ShortReal aSize = (Standard_ShortReal)(0.5*aViewer->DefaultViewSize()); |
78 | const Standard_ShortReal anOffset = aSize/5000.0f; |
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79 | |
80 | Handle(Graphic3d_ArrayOfQuadrangles) aPrims = new Graphic3d_ArrayOfQuadrangles(4); |
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81 | aPrims->AddVertex (-aSize,-aSize, anOffset); |
82 | aPrims->AddVertex (-aSize, aSize, anOffset); |
83 | aPrims->AddVertex ( aSize, aSize, anOffset); |
84 | aPrims->AddVertex ( aSize,-aSize, anOffset); |
85 | aGroup->AddPrimitiveArray(aPrims); |
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86 | |
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87 | myGraphicStructure->SetDisplayPriority (0); |
88 | myGraphicStructure->Display(); |
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89 | Update(); |
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90 | } |
91 | |
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92 | // ======================================================================= |
93 | // function : Erase |
94 | // purpose : |
95 | // ======================================================================= |
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96 | void V3d_Plane::Erase() |
97 | { |
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98 | if (!myGraphicStructure.IsNull()) |
99 | { |
100 | myGraphicStructure->Erase(); |
101 | } |
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102 | } |
103 | |
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104 | // ======================================================================= |
105 | // function : Plane |
106 | // purpose : |
107 | // ======================================================================= |
108 | void V3d_Plane::Plane (Standard_Real& theA, Standard_Real& theB, Standard_Real& theC, Standard_Real& theD) const |
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109 | { |
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110 | const Graphic3d_ClipPlane::Equation& anEquation = myPlane->GetEquation(); |
111 | theA = anEquation[0]; |
112 | theB = anEquation[1]; |
113 | theC = anEquation[2]; |
114 | theD = anEquation[3]; |
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115 | } |
116 | |
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117 | // ======================================================================= |
118 | // function : IsDisplayed |
119 | // purpose : |
120 | // ======================================================================= |
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121 | Standard_Boolean V3d_Plane::IsDisplayed() const |
122 | { |
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123 | if (myGraphicStructure.IsNull()) |
124 | { |
125 | return Standard_False; |
126 | } |
127 | |
128 | return myGraphicStructure->IsDisplayed(); |
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129 | } |
130 | |
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131 | // ======================================================================= |
132 | // function : Update |
133 | // purpose : |
134 | // ======================================================================= |
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135 | void V3d_Plane::Update() |
136 | { |
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137 | if (myGraphicStructure.IsNull()) |
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138 | { |
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139 | return; |
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140 | } |
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141 | |
142 | const gp_Pln aGeomPln = myPlane->ToPlane(); |
143 | gp_Trsf aTransform; |
144 | aTransform.SetTransformation (aGeomPln.Position()); |
145 | aTransform.Invert(); |
146 | myGraphicStructure->SetTransformation (new Geom_Transformation (aTransform)); |
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147 | } |