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1 | // Created on: 1996-12-05 |
2 | // Created by: Arnaud BOUZY/Odile Olivier |
3 | // Copyright (c) 1996-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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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 |
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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. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
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17 | #include <AIS_AngleDimension.hxx> |
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18 | |
19 | #include <AIS.hxx> |
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20 | #include <BRepBuilderAPI_MakeFace.hxx> |
21 | #include <BRepAdaptor_Curve.hxx> |
22 | #include <BRepAdaptor_Surface.hxx> |
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23 | #include <BRepLib_MakeVertex.hxx> |
24 | #include <BRep_Tool.hxx> |
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25 | #include <ElCLib.hxx> |
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26 | #include <GCPnts_UniformAbscissa.hxx> |
27 | #include <GC_MakeArcOfCircle.hxx> |
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28 | #include <gce_MakeLin2d.hxx> |
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29 | #include <gce_MakeLin.hxx> |
30 | #include <gce_MakeCirc.hxx> |
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31 | #include <gce_MakeCone.hxx> |
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32 | #include <gce_MakePln.hxx> |
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33 | #include <gce_MakeDir.hxx> |
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34 | #include <Geom_Circle.hxx> |
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35 | #include <Geom_TrimmedCurve.hxx> |
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36 | #include <Geom_ConicalSurface.hxx> |
37 | #include <Geom_SurfaceOfRevolution.hxx> |
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38 | #include <Geom_OffsetSurface.hxx> |
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39 | #include <Graphic3d_ArrayOfSegments.hxx> |
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40 | #include <Graphic3d_Group.hxx> |
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41 | #include <Graphic3d_ArrayOfPolylines.hxx> |
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42 | #include <IntAna2d_AnaIntersection.hxx> |
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43 | #include <ProjLib.hxx> |
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44 | #include <Prs3d_Root.hxx> |
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45 | #include <Prs3d_ShadingAspect.hxx> |
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46 | #include <PrsMgr_PresentationManager3d.hxx> |
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47 | #include <Select3D_SensitiveGroup.hxx> |
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48 | #include <Select3D_SensitiveSegment.hxx> |
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49 | #include <SelectMgr_Selection.hxx> |
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50 | #include <Standard_ProgramError.hxx> |
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51 | #include <UnitsAPI.hxx> |
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52 | #include <Geom_Line.hxx> |
53 | #include <Geom_Plane.hxx> |
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54 | |
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55 | |
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56 | IMPLEMENT_STANDARD_RTTIEXT(AIS_AngleDimension,AIS_Dimension) |
57 | |
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58 | namespace |
59 | { |
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60 | static const TCollection_ExtendedString THE_EMPTY_LABEL_STRING; |
61 | static const Standard_Real THE_EMPTY_LABEL_WIDTH = 0.0; |
62 | static const Standard_ExtCharacter THE_DEGREE_SYMBOL (0x00B0); |
63 | static const Standard_Real THE_3D_TEXT_MARGIN = 0.1; |
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64 | } |
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65 | |
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66 | //======================================================================= |
67 | //function : Constructor |
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68 | //purpose : |
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69 | //======================================================================= |
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70 | AIS_AngleDimension::AIS_AngleDimension (const TopoDS_Edge& theFirstEdge, |
71 | const TopoDS_Edge& theSecondEdge) |
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72 | : AIS_Dimension (AIS_KOD_PLANEANGLE) |
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73 | { |
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74 | Init(); |
75 | SetMeasuredGeometry (theFirstEdge, theSecondEdge); |
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76 | } |
77 | |
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78 | //======================================================================= |
79 | //function : Constructor |
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80 | //purpose : |
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81 | //======================================================================= |
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82 | AIS_AngleDimension::AIS_AngleDimension (const gp_Pnt& theFirstPoint, |
83 | const gp_Pnt& theSecondPoint, |
84 | const gp_Pnt& theThirdPoint) |
85 | : AIS_Dimension (AIS_KOD_PLANEANGLE) |
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86 | { |
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87 | Init(); |
88 | SetMeasuredGeometry (theFirstPoint, theSecondPoint, theThirdPoint); |
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89 | } |
90 | |
91 | //======================================================================= |
92 | //function : Constructor |
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93 | //purpose : |
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94 | //======================================================================= |
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95 | AIS_AngleDimension::AIS_AngleDimension (const TopoDS_Vertex& theFirstVertex, |
96 | const TopoDS_Vertex& theSecondVertex, |
97 | const TopoDS_Vertex& theThirdVertex) |
98 | : AIS_Dimension (AIS_KOD_PLANEANGLE) |
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99 | { |
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100 | Init(); |
101 | SetMeasuredGeometry (theFirstVertex, theSecondVertex, theThirdVertex); |
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102 | } |
103 | |
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104 | //======================================================================= |
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105 | //function : Constructor |
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106 | //purpose : |
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107 | //======================================================================= |
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108 | AIS_AngleDimension::AIS_AngleDimension (const TopoDS_Face& theCone) |
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109 | : AIS_Dimension (AIS_KOD_PLANEANGLE) |
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110 | { |
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111 | Init(); |
112 | SetMeasuredGeometry (theCone); |
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113 | } |
114 | |
115 | //======================================================================= |
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116 | //function : Constructor |
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117 | //purpose : |
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118 | //======================================================================= |
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119 | AIS_AngleDimension::AIS_AngleDimension (const TopoDS_Face& theFirstFace, |
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120 | const TopoDS_Face& theSecondFace) |
121 | : AIS_Dimension (AIS_KOD_PLANEANGLE) |
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122 | { |
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123 | Init(); |
124 | SetMeasuredGeometry (theFirstFace, theSecondFace); |
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125 | } |
126 | |
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127 | //======================================================================= |
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128 | //function : Constructor |
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129 | //purpose : |
130 | //======================================================================= |
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131 | AIS_AngleDimension::AIS_AngleDimension (const TopoDS_Face& theFirstFace, |
132 | const TopoDS_Face& theSecondFace, |
133 | const gp_Pnt& thePoint) |
134 | : AIS_Dimension (AIS_KOD_PLANEANGLE) |
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135 | { |
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136 | Init(); |
137 | SetMeasuredGeometry (theFirstFace, theSecondFace, thePoint); |
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138 | } |
139 | |
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140 | //======================================================================= |
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141 | //function : SetMeasuredGeometry |
142 | //purpose : |
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143 | //======================================================================= |
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144 | void AIS_AngleDimension::SetMeasuredGeometry (const TopoDS_Edge& theFirstEdge, |
145 | const TopoDS_Edge& theSecondEdge) |
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146 | { |
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147 | gp_Pln aComputedPlane; |
148 | |
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149 | myFirstShape = theFirstEdge; |
150 | mySecondShape = theSecondEdge; |
151 | myThirdShape = TopoDS_Shape(); |
152 | myGeometryType = GeometryType_Edges; |
153 | myIsGeometryValid = InitTwoEdgesAngle (aComputedPlane); |
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154 | |
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155 | if (myIsGeometryValid && !myIsPlaneCustom) |
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156 | { |
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157 | myPlane = aComputedPlane; |
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158 | } |
159 | |
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160 | SetToUpdate(); |
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161 | } |
162 | |
163 | //======================================================================= |
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164 | //function : SetMeasuredGeometry |
165 | //purpose : |
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166 | //======================================================================= |
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167 | void AIS_AngleDimension::SetMeasuredGeometry (const gp_Pnt& theFirstPoint, |
168 | const gp_Pnt& theSecondPoint, |
169 | const gp_Pnt& theThirdPoint) |
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170 | { |
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171 | myFirstPoint = theFirstPoint; |
172 | myCenterPoint = theSecondPoint; |
173 | mySecondPoint = theThirdPoint; |
174 | myFirstShape = BRepLib_MakeVertex (myFirstPoint); |
175 | mySecondShape = BRepLib_MakeVertex (myCenterPoint); |
176 | myThirdShape = BRepLib_MakeVertex (mySecondPoint); |
177 | myGeometryType = GeometryType_Points; |
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178 | myIsGeometryValid = IsValidPoints (myFirstPoint, myCenterPoint, mySecondPoint); |
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179 | |
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180 | if (myIsGeometryValid && !myIsPlaneCustom) |
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181 | { |
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182 | ComputePlane(); |
183 | } |
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184 | |
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185 | SetToUpdate(); |
186 | } |
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187 | |
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188 | //======================================================================= |
189 | //function : SetMeasuredGeometry |
190 | //purpose : |
191 | //======================================================================= |
192 | void AIS_AngleDimension::SetMeasuredGeometry (const TopoDS_Vertex& theFirstVertex, |
193 | const TopoDS_Vertex& theSecondVertex, |
194 | const TopoDS_Vertex& theThirdVertex) |
195 | { |
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196 | myFirstShape = theFirstVertex; |
197 | mySecondShape = theSecondVertex; |
198 | myThirdShape = theThirdVertex; |
199 | myFirstPoint = BRep_Tool::Pnt (theFirstVertex); |
200 | myCenterPoint = BRep_Tool::Pnt (theSecondVertex); |
201 | mySecondPoint = BRep_Tool::Pnt (theThirdVertex); |
202 | myGeometryType = GeometryType_Points; |
203 | myIsGeometryValid = IsValidPoints (myFirstPoint, myCenterPoint, mySecondPoint); |
204 | |
205 | if (myIsGeometryValid && !myIsPlaneCustom) |
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206 | { |
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207 | ComputePlane(); |
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208 | } |
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209 | |
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210 | SetToUpdate(); |
211 | } |
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212 | |
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213 | //======================================================================= |
214 | //function : SetMeasuredGeometry |
215 | //purpose : |
216 | //======================================================================= |
217 | void AIS_AngleDimension::SetMeasuredGeometry (const TopoDS_Face& theCone) |
218 | { |
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219 | myFirstShape = theCone; |
220 | mySecondShape = TopoDS_Shape(); |
221 | myThirdShape = TopoDS_Shape(); |
222 | myGeometryType = GeometryType_Face; |
223 | myIsGeometryValid = InitConeAngle(); |
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224 | |
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225 | if (myIsGeometryValid && !myIsPlaneCustom) |
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226 | { |
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227 | ComputePlane(); |
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228 | } |
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229 | |
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230 | SetToUpdate(); |
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231 | } |
232 | |
233 | //======================================================================= |
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234 | //function : SetMeasuredGeometry |
235 | //purpose : |
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236 | //======================================================================= |
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237 | void AIS_AngleDimension::SetMeasuredGeometry (const TopoDS_Face& theFirstFace, |
238 | const TopoDS_Face& theSecondFace) |
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239 | { |
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240 | myFirstShape = theFirstFace; |
241 | mySecondShape = theSecondFace; |
242 | myThirdShape = TopoDS_Shape(); |
243 | myGeometryType = GeometryType_Faces; |
244 | myIsGeometryValid = InitTwoFacesAngle(); |
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245 | |
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246 | if (myIsGeometryValid && !myIsPlaneCustom) |
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247 | { |
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248 | ComputePlane(); |
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249 | } |
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250 | |
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251 | SetToUpdate(); |
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252 | } |
253 | |
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254 | //======================================================================= |
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255 | //function : SetMeasuredGeometry |
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256 | //purpose : |
257 | //======================================================================= |
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258 | void AIS_AngleDimension::SetMeasuredGeometry (const TopoDS_Face& theFirstFace, |
259 | const TopoDS_Face& theSecondFace, |
260 | const gp_Pnt& thePoint) |
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261 | { |
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262 | myFirstShape = theFirstFace; |
263 | mySecondShape = theSecondFace; |
264 | myThirdShape = TopoDS_Shape(); |
265 | myGeometryType = GeometryType_Faces; |
266 | myIsGeometryValid = InitTwoFacesAngle (thePoint); |
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267 | |
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268 | if (myIsGeometryValid && !myIsPlaneCustom) |
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269 | { |
270 | ComputePlane(); |
271 | } |
272 | |
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273 | SetToUpdate(); |
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274 | } |
275 | |
276 | //======================================================================= |
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277 | //function : Init |
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278 | //purpose : |
279 | //======================================================================= |
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280 | void AIS_AngleDimension::Init() |
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281 | { |
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282 | SetSpecialSymbol (THE_DEGREE_SYMBOL); |
283 | SetDisplaySpecialSymbol (AIS_DSS_After); |
284 | SetFlyout (15.0); |
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285 | } |
286 | |
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287 | //======================================================================= |
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288 | //function: GetCenterOnArc |
289 | //purpose : |
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290 | //======================================================================= |
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291 | gp_Pnt AIS_AngleDimension::GetCenterOnArc (const gp_Pnt& theFirstAttach, |
292 | const gp_Pnt& theSecondAttach, |
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293 | const gp_Pnt& theCenter) const |
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294 | { |
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295 | // construct plane where the circle and the arc are located |
296 | gce_MakePln aConstructPlane (theFirstAttach, theSecondAttach, theCenter); |
297 | if (!aConstructPlane.IsDone()) |
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298 | { |
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299 | return gp::Origin(); |
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300 | } |
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301 | |
302 | gp_Pln aPlane = aConstructPlane.Value(); |
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303 | |
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304 | Standard_Real aRadius = theFirstAttach.Distance (theCenter); |
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305 | |
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306 | // construct circle forming the arc |
307 | gce_MakeCirc aConstructCircle (theCenter, aPlane, aRadius); |
308 | if (!aConstructCircle.IsDone()) |
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309 | { |
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310 | return gp::Origin(); |
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311 | } |
312 | |
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313 | gp_Circ aCircle = aConstructCircle.Value(); |
314 | |
315 | // compute angle parameters of arc end-points on circle |
316 | Standard_Real aParamBeg = ElCLib::Parameter (aCircle, theFirstAttach); |
317 | Standard_Real aParamEnd = ElCLib::Parameter (aCircle, theSecondAttach); |
318 | ElCLib::AdjustPeriodic (0.0, M_PI * 2, Precision::PConfusion(), aParamBeg, aParamEnd); |
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319 | |
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320 | return ElCLib::Value ((aParamBeg + aParamEnd) * 0.5, aCircle); |
321 | } |
322 | |
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323 | //======================================================================= |
324 | //function : GetNormalForMinAngle |
325 | //purpose : |
326 | //======================================================================= |
327 | gp_Dir AIS_AngleDimension::GetNormalForMinAngle() const |
328 | { |
329 | const gp_Dir& aNormal = myPlane.Axis().Direction(); |
330 | gp_Dir aFirst (gp_Vec (myCenterPoint, myFirstPoint) ); |
331 | gp_Dir aSecond (gp_Vec (myCenterPoint, mySecondPoint) ); |
332 | |
333 | return aFirst.AngleWithRef (aSecond, aNormal) < 0.0 |
334 | ? aNormal.Reversed() |
335 | : aNormal; |
336 | } |
337 | |
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338 | //======================================================================= |
339 | //function : DrawArc |
340 | //purpose : draws the arc between two attach points |
341 | //======================================================================= |
342 | void AIS_AngleDimension::DrawArc (const Handle(Prs3d_Presentation)& thePresentation, |
343 | const gp_Pnt& theFirstAttach, |
344 | const gp_Pnt& theSecondAttach, |
345 | const gp_Pnt& theCenter, |
346 | const Standard_Real theRadius, |
347 | const Standard_Integer theMode) |
348 | { |
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349 | gp_Pln aPlane (myCenterPoint, GetNormalForMinAngle()); |
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350 | |
351 | // construct circle forming the arc |
352 | gce_MakeCirc aConstructCircle (theCenter, aPlane, theRadius); |
353 | if (!aConstructCircle.IsDone()) |
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354 | { |
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355 | return; |
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356 | } |
357 | |
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358 | gp_Circ aCircle = aConstructCircle.Value(); |
359 | |
360 | // construct the arc |
361 | GC_MakeArcOfCircle aConstructArc (aCircle, theFirstAttach, theSecondAttach, Standard_True); |
362 | if (!aConstructArc.IsDone()) |
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363 | { |
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364 | return; |
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365 | } |
366 | |
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367 | // generate points with specified deflection |
368 | const Handle(Geom_TrimmedCurve)& anArcCurve = aConstructArc.Value(); |
369 | |
370 | GeomAdaptor_Curve anArcAdaptor (anArcCurve, anArcCurve->FirstParameter(), anArcCurve->LastParameter()); |
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371 | |
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372 | // compute number of discretization elements in old-fanshioned way |
373 | gp_Vec aCenterToFirstVec (theCenter, theFirstAttach); |
374 | gp_Vec aCenterToSecondVec (theCenter, theSecondAttach); |
375 | const Standard_Real anAngle = aCenterToFirstVec.Angle (aCenterToSecondVec); |
376 | const Standard_Integer aNbPoints = Max (4, Standard_Integer (50.0 * anAngle / M_PI)); |
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377 | |
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378 | GCPnts_UniformAbscissa aMakePnts (anArcAdaptor, aNbPoints); |
379 | if (!aMakePnts.IsDone()) |
380 | { |
381 | return; |
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382 | } |
383 | |
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384 | // init data arrays for graphical and selection primitives |
385 | Handle(Graphic3d_ArrayOfPolylines) aPrimSegments = new Graphic3d_ArrayOfPolylines (aNbPoints); |
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386 | |
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387 | SelectionGeometry::Curve& aSensitiveCurve = mySelectionGeom.NewCurve(); |
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388 | |
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389 | // load data into arrays |
390 | for (Standard_Integer aPntIt = 1; aPntIt <= aMakePnts.NbPoints(); ++aPntIt) |
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391 | { |
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392 | gp_Pnt aPnt = anArcAdaptor.Value (aMakePnts.Parameter (aPntIt)); |
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393 | |
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394 | aPrimSegments->AddVertex (aPnt); |
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395 | |
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396 | aSensitiveCurve.Append (aPnt); |
a6eb515f |
397 | } |
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398 | |
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399 | // add display presentation |
400 | if (!myDrawer->DimensionAspect()->IsText3d() && theMode == ComputeMode_All) |
401 | { |
402 | Prs3d_Root::CurrentGroup (thePresentation)->SetStencilTestOptions (Standard_True); |
403 | } |
404 | Handle(Graphic3d_AspectLine3d) aDimensionLineStyle = myDrawer->DimensionAspect()->LineAspect()->Aspect(); |
405 | Prs3d_Root::CurrentGroup (thePresentation)->SetPrimitivesAspect (aDimensionLineStyle); |
406 | Prs3d_Root::CurrentGroup (thePresentation)->AddPrimitiveArray (aPrimSegments); |
407 | if (!myDrawer->DimensionAspect()->IsText3d() && theMode == ComputeMode_All) |
408 | { |
409 | Prs3d_Root::CurrentGroup (thePresentation)->SetStencilTestOptions (Standard_False); |
410 | } |
7fd59977 |
411 | } |
a6eb515f |
412 | |
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413 | //======================================================================= |
60bf98ae |
414 | //function: DrawArcWithText |
a6eb515f |
415 | //purpose : |
7fd59977 |
416 | //======================================================================= |
60bf98ae |
417 | void AIS_AngleDimension::DrawArcWithText (const Handle(Prs3d_Presentation)& thePresentation, |
a6eb515f |
418 | const gp_Pnt& theFirstAttach, |
419 | const gp_Pnt& theSecondAttach, |
60bf98ae |
420 | const gp_Pnt& theCenter, |
a6eb515f |
421 | const TCollection_ExtendedString& theText, |
fe83e1ea |
422 | const Standard_Real theTextWidth, |
423 | const Standard_Integer theMode, |
d7bffd44 |
424 | const Standard_Integer theLabelPosition) |
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425 | { |
4d147bf2 |
426 | gp_Pln aPlane (myCenterPoint, GetNormalForMinAngle()); |
427 | |
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428 | Standard_Real aRadius = theFirstAttach.Distance (myCenterPoint); |
a6eb515f |
429 | |
fe83e1ea |
430 | // construct circle forming the arc |
60bf98ae |
431 | gce_MakeCirc aConstructCircle (theCenter, aPlane, aRadius); |
fe83e1ea |
432 | if (!aConstructCircle.IsDone()) |
433 | { |
434 | return; |
435 | } |
a6eb515f |
436 | |
fe83e1ea |
437 | gp_Circ aCircle = aConstructCircle.Value(); |
a6eb515f |
438 | |
fe83e1ea |
439 | // compute angle parameters of arc end-points on circle |
440 | Standard_Real aParamBeg = ElCLib::Parameter (aCircle, theFirstAttach); |
441 | Standard_Real aParamEnd = ElCLib::Parameter (aCircle, theSecondAttach); |
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442 | ElCLib::AdjustPeriodic (0.0, M_PI * 2, Precision::PConfusion(), aParamBeg, aParamEnd); |
a6eb515f |
443 | |
fe83e1ea |
444 | // middle point of arc parameter on circle |
445 | Standard_Real aParamMid = (aParamBeg + aParamEnd) * 0.5; |
a6eb515f |
446 | |
fe83e1ea |
447 | // add text graphical primitives |
448 | if (theMode == ComputeMode_All || theMode == ComputeMode_Text) |
449 | { |
450 | gp_Pnt aTextPos = ElCLib::Value (aParamMid, aCircle); |
60bf98ae |
451 | gp_Dir aTextDir = gce_MakeDir (theFirstAttach, theSecondAttach); |
fe83e1ea |
452 | |
453 | // Drawing text |
7c65581d |
454 | drawText (thePresentation, |
fe83e1ea |
455 | aTextPos, |
456 | aTextDir, |
457 | theText, |
458 | theLabelPosition); |
459 | } |
a6eb515f |
460 | |
fe83e1ea |
461 | if (theMode != ComputeMode_All && theMode != ComputeMode_Line) |
462 | { |
463 | return; |
464 | } |
a6eb515f |
465 | |
fe83e1ea |
466 | Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect(); |
a6eb515f |
467 | |
fe83e1ea |
468 | Standard_Boolean isLineBreak = aDimensionAspect->TextVerticalPosition() == Prs3d_DTVP_Center |
469 | && aDimensionAspect->IsText3d(); |
a6eb515f |
470 | |
fe83e1ea |
471 | if (isLineBreak) |
a6eb515f |
472 | { |
fe83e1ea |
473 | // compute gap for label as parameteric size of sector on circle segment |
4d147bf2 |
474 | Standard_Real aSectorOfText = theTextWidth / aRadius; |
475 | Standard_Real aTextBegin = aParamMid - aSectorOfText * 0.5; |
476 | Standard_Real aTextEnd = aParamMid + aSectorOfText * 0.5; |
477 | gp_Pnt aTextPntBeg = ElCLib::Value (aTextBegin, aCircle); |
478 | gp_Pnt aTextPntEnd = ElCLib::Value (aTextEnd, aCircle); |
fe83e1ea |
479 | |
480 | // Drawing arcs |
4d147bf2 |
481 | if (aTextBegin > aParamBeg) |
482 | { |
483 | DrawArc (thePresentation, theFirstAttach, aTextPntBeg, theCenter, aRadius, theMode); |
484 | } |
485 | if (aTextEnd < aParamEnd) |
486 | { |
487 | DrawArc (thePresentation, aTextPntEnd, theSecondAttach, theCenter, aRadius, theMode); |
488 | } |
fe83e1ea |
489 | } |
490 | else |
491 | { |
60bf98ae |
492 | DrawArc (thePresentation, theFirstAttach, theSecondAttach, theCenter, aRadius, theMode); |
7fd59977 |
493 | } |
a6eb515f |
494 | } |
7fd59977 |
495 | |
a6eb515f |
496 | //======================================================================= |
60bf98ae |
497 | //function : CheckPlane |
498 | //purpose : |
a6eb515f |
499 | //======================================================================= |
60bf98ae |
500 | Standard_Boolean AIS_AngleDimension::CheckPlane (const gp_Pln& thePlane)const |
a6eb515f |
501 | { |
60bf98ae |
502 | if (!thePlane.Contains (myFirstPoint, Precision::Confusion()) && |
503 | !thePlane.Contains (mySecondPoint, Precision::Confusion()) && |
504 | !thePlane.Contains (myCenterPoint, Precision::Confusion())) |
fe83e1ea |
505 | { |
60bf98ae |
506 | return Standard_False; |
fe83e1ea |
507 | } |
508 | |
60bf98ae |
509 | return Standard_True; |
510 | } |
a6eb515f |
511 | |
60bf98ae |
512 | //======================================================================= |
513 | //function : ComputePlane |
514 | //purpose : |
515 | //======================================================================= |
516 | void AIS_AngleDimension::ComputePlane() |
517 | { |
91b16a64 |
518 | if (!myIsGeometryValid) |
a6eb515f |
519 | { |
fe83e1ea |
520 | return; |
7fd59977 |
521 | } |
7fd59977 |
522 | |
4d147bf2 |
523 | // Compute working plane so that Y axis is codirectional |
524 | // with Y axis of text coordinate system (necessary for text alignment) |
525 | gp_Vec aFirstVec = gp_Vec (myCenterPoint, myFirstPoint); |
526 | gp_Vec aSecondVec = gp_Vec (myCenterPoint, mySecondPoint); |
527 | gp_Vec aDirectionN = aSecondVec ^ aFirstVec; |
528 | gp_Vec aDirectionY = aFirstVec + aSecondVec; |
529 | gp_Vec aDirectionX = aDirectionY ^ aDirectionN; |
fe83e1ea |
530 | |
60bf98ae |
531 | myPlane = gp_Pln (gp_Ax3 (myCenterPoint, gp_Dir (aDirectionN), gp_Dir (aDirectionX))); |
532 | } |
7fd59977 |
533 | |
60bf98ae |
534 | //======================================================================= |
535 | //function : GetModelUnits |
536 | //purpose : |
537 | //======================================================================= |
538 | const TCollection_AsciiString& AIS_AngleDimension::GetModelUnits() const |
539 | { |
540 | return myDrawer->DimAngleModelUnits(); |
541 | } |
fe83e1ea |
542 | |
60bf98ae |
543 | //======================================================================= |
544 | //function : GetDisplayUnits |
545 | //purpose : |
546 | //======================================================================= |
547 | const TCollection_AsciiString& AIS_AngleDimension::GetDisplayUnits() const |
548 | { |
549 | return myDrawer->DimAngleDisplayUnits(); |
550 | } |
fe83e1ea |
551 | |
60bf98ae |
552 | //======================================================================= |
553 | //function : SetModelUnits |
554 | //purpose : |
555 | //======================================================================= |
556 | void AIS_AngleDimension::SetModelUnits (const TCollection_AsciiString& theUnits) |
557 | { |
558 | myDrawer->SetDimAngleModelUnits (theUnits); |
559 | } |
fe83e1ea |
560 | |
60bf98ae |
561 | //======================================================================= |
562 | //function : SetDisplayUnits |
563 | //purpose : |
564 | //======================================================================= |
565 | void AIS_AngleDimension::SetDisplayUnits (const TCollection_AsciiString& theUnits) |
566 | { |
567 | myDrawer->SetDimAngleDisplayUnits (theUnits); |
568 | } |
569 | |
570 | //======================================================================= |
571 | //function : ComputeValue |
572 | //purpose : |
573 | //======================================================================= |
574 | Standard_Real AIS_AngleDimension::ComputeValue() const |
575 | { |
576 | if (!IsValid()) |
a6eb515f |
577 | { |
60bf98ae |
578 | return 0.0; |
7fd59977 |
579 | } |
60bf98ae |
580 | |
581 | gp_Vec aVec1 (myCenterPoint, myFirstPoint); |
582 | gp_Vec aVec2 (myCenterPoint, mySecondPoint); |
583 | |
4d147bf2 |
584 | Standard_Real anAngle = aVec1.AngleWithRef (aVec2, GetNormalForMinAngle()); |
60bf98ae |
585 | |
af203d54 |
586 | return anAngle > 0.0 ? anAngle : (2.0 * M_PI + anAngle); |
7fd59977 |
587 | } |
588 | |
7fd59977 |
589 | //======================================================================= |
a6eb515f |
590 | //function : Compute |
591 | //purpose : Having three gp_Pnt points compute presentation |
7fd59977 |
592 | //======================================================================= |
a6eb515f |
593 | void AIS_AngleDimension::Compute (const Handle(PrsMgr_PresentationManager3d)& /*thePM*/, |
594 | const Handle(Prs3d_Presentation)& thePresentation, |
595 | const Standard_Integer theMode) |
596 | { |
597 | thePresentation->Clear(); |
fe83e1ea |
598 | mySelectionGeom.Clear (theMode); |
7fd59977 |
599 | |
60bf98ae |
600 | if (!IsValid()) |
a6eb515f |
601 | { |
a6eb515f |
602 | return; |
60bf98ae |
603 | } |
7fd59977 |
604 | |
a6eb515f |
605 | // Parameters for presentation |
606 | Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect(); |
d7bffd44 |
607 | |
60bf98ae |
608 | Prs3d_Root::CurrentGroup(thePresentation)->SetPrimitivesAspect (aDimensionAspect->LineAspect()->Aspect()); |
d7bffd44 |
609 | |
a6eb515f |
610 | Quantity_Length anArrowLength = aDimensionAspect->ArrowAspect()->Length(); |
d7bffd44 |
611 | |
60bf98ae |
612 | // prepare label string and compute its geometrical width |
613 | Standard_Real aLabelWidth; |
614 | TCollection_ExtendedString aLabelString = GetValueString (aLabelWidth); |
d7bffd44 |
615 | |
fe83e1ea |
616 | // add margins to label width |
617 | if (aDimensionAspect->IsText3d()) |
618 | { |
60bf98ae |
619 | aLabelWidth += aDimensionAspect->TextAspect()->Height() * THE_3D_TEXT_MARGIN * 2.0; |
d7bffd44 |
620 | } |
621 | |
af203d54 |
622 | // Get parameters from aspect or adjust it according with custom text position |
623 | Standard_Real anExtensionSize = aDimensionAspect->ExtensionSize(); |
624 | Prs3d_DimensionTextHorizontalPosition aHorisontalTextPos = aDimensionAspect->TextHorizontalPosition(); |
7fd59977 |
625 | |
af203d54 |
626 | if (IsTextPositionCustom()) |
d7bffd44 |
627 | { |
91b16a64 |
628 | AdjustParameters (myFixedTextPosition,anExtensionSize, aHorisontalTextPos, myFlyout); |
af203d54 |
629 | } |
fe83e1ea |
630 | |
af203d54 |
631 | // Handle user-defined and automatic arrow placement |
632 | Standard_Boolean isArrowsExternal = Standard_False; |
633 | Standard_Integer aLabelPosition = LabelPosition_None; |
fe83e1ea |
634 | |
af203d54 |
635 | FitTextAlignment (aHorisontalTextPos, aLabelPosition, isArrowsExternal); |
d7bffd44 |
636 | |
af203d54 |
637 | gp_Pnt aFirstAttach = myCenterPoint.Translated (gp_Vec(myCenterPoint, myFirstPoint).Normalized() * GetFlyout()); |
638 | gp_Pnt aSecondAttach = myCenterPoint.Translated (gp_Vec(myCenterPoint, mySecondPoint).Normalized() * GetFlyout()); |
7fd59977 |
639 | |
a6eb515f |
640 | //Arrows positions and directions |
4d147bf2 |
641 | gp_Vec aWorkingPlaneDir (GetNormalForMinAngle()); |
d7bffd44 |
642 | |
4d147bf2 |
643 | gp_Dir aFirstExtensionDir = aWorkingPlaneDir.Reversed() ^ gp_Vec (myCenterPoint, aFirstAttach); |
644 | gp_Dir aSecondExtensionDir = aWorkingPlaneDir ^ gp_Vec (myCenterPoint, aSecondAttach); |
7fd59977 |
645 | |
d7bffd44 |
646 | gp_Vec aFirstArrowVec = gp_Vec (aFirstExtensionDir) * anArrowLength; |
647 | gp_Vec aSecondArrowVec = gp_Vec (aSecondExtensionDir) * anArrowLength; |
7fd59977 |
648 | |
d7bffd44 |
649 | if (isArrowsExternal) |
a6eb515f |
650 | { |
651 | aFirstArrowVec.Reverse(); |
652 | aSecondArrowVec.Reverse(); |
d7bffd44 |
653 | } |
654 | |
4d147bf2 |
655 | gp_Pnt aFirstArrowBegin (0.0, 0.0, 0.0); |
656 | gp_Pnt aFirstArrowEnd (0.0, 0.0, 0.0); |
657 | gp_Pnt aSecondArrowBegin (0.0, 0.0, 0.0); |
658 | gp_Pnt aSecondArrowEnd (0.0, 0.0, 0.0); |
659 | |
d7bffd44 |
660 | aFirstArrowBegin = aFirstAttach; |
661 | aSecondArrowBegin = aSecondAttach; |
662 | aFirstArrowEnd = aFirstAttach.Translated (-aFirstArrowVec); |
663 | aSecondArrowEnd = aSecondAttach.Translated (-aSecondArrowVec); |
664 | |
d7bffd44 |
665 | // Group1: stenciling text and the angle dimension arc |
666 | Prs3d_Root::NewGroup (thePresentation); |
667 | |
d7bffd44 |
668 | Standard_Integer aHPosition = aLabelPosition & LabelPosition_HMask; |
669 | |
670 | // draw text label |
671 | switch (aHPosition) |
b8ddfc2f |
672 | { |
d7bffd44 |
673 | case LabelPosition_HCenter : |
a6eb515f |
674 | { |
d7bffd44 |
675 | Standard_Boolean isLineBreak = aDimensionAspect->TextVerticalPosition() == Prs3d_DTVP_Center |
676 | && aDimensionAspect->IsText3d(); |
677 | |
678 | if (isLineBreak) |
679 | { |
60bf98ae |
680 | DrawArcWithText (thePresentation, |
d7bffd44 |
681 | aFirstAttach, |
682 | aSecondAttach, |
60bf98ae |
683 | myCenterPoint, |
684 | aLabelString, |
685 | aLabelWidth, |
fe83e1ea |
686 | theMode, |
d7bffd44 |
687 | aLabelPosition); |
688 | break; |
689 | } |
690 | |
fe83e1ea |
691 | // compute text primitives |
692 | if (theMode == ComputeMode_All || theMode == ComputeMode_Text) |
d7bffd44 |
693 | { |
60bf98ae |
694 | gp_Vec aDimensionDir (aFirstAttach, aSecondAttach); |
af203d54 |
695 | gp_Pnt aTextPos = IsTextPositionCustom() ? myFixedTextPosition |
696 | : GetCenterOnArc (aFirstAttach, aSecondAttach, myCenterPoint); |
60bf98ae |
697 | gp_Dir aTextDir = aDimensionDir; |
fe83e1ea |
698 | |
7c65581d |
699 | drawText (thePresentation, |
fe83e1ea |
700 | aTextPos, |
701 | aTextDir, |
60bf98ae |
702 | aLabelString, |
fe83e1ea |
703 | aLabelPosition); |
d7bffd44 |
704 | } |
705 | |
fe83e1ea |
706 | if (theMode == ComputeMode_All || theMode == ComputeMode_Line) |
707 | { |
60bf98ae |
708 | DrawArc (thePresentation, |
fe83e1ea |
709 | isArrowsExternal ? aFirstAttach : aFirstArrowEnd, |
710 | isArrowsExternal ? aSecondAttach : aSecondArrowEnd, |
60bf98ae |
711 | myCenterPoint, |
fe83e1ea |
712 | Abs (GetFlyout()), |
713 | theMode); |
714 | } |
a6eb515f |
715 | } |
d7bffd44 |
716 | break; |
717 | |
718 | case LabelPosition_Left : |
a6eb515f |
719 | { |
60bf98ae |
720 | DrawExtension (thePresentation, |
d7bffd44 |
721 | anExtensionSize, |
722 | isArrowsExternal ? aFirstArrowEnd : aFirstAttach, |
723 | aFirstExtensionDir, |
60bf98ae |
724 | aLabelString, |
725 | aLabelWidth, |
fe83e1ea |
726 | theMode, |
d7bffd44 |
727 | aLabelPosition); |
a6eb515f |
728 | } |
d7bffd44 |
729 | break; |
730 | |
731 | case LabelPosition_Right : |
a6eb515f |
732 | { |
60bf98ae |
733 | DrawExtension (thePresentation, |
d7bffd44 |
734 | anExtensionSize, |
735 | isArrowsExternal ? aSecondArrowEnd : aSecondAttach, |
736 | aSecondExtensionDir, |
60bf98ae |
737 | aLabelString, |
738 | aLabelWidth, |
fe83e1ea |
739 | theMode, |
d7bffd44 |
740 | aLabelPosition); |
a6eb515f |
741 | } |
d7bffd44 |
742 | break; |
743 | } |
744 | |
745 | // dimension arc without text |
fe83e1ea |
746 | if ((theMode == ComputeMode_All || theMode == ComputeMode_Line) && aHPosition != LabelPosition_HCenter) |
d7bffd44 |
747 | { |
748 | Prs3d_Root::NewGroup (thePresentation); |
749 | |
60bf98ae |
750 | DrawArc (thePresentation, |
d7bffd44 |
751 | isArrowsExternal ? aFirstAttach : aFirstArrowEnd, |
752 | isArrowsExternal ? aSecondAttach : aSecondArrowEnd, |
60bf98ae |
753 | myCenterPoint, |
d7bffd44 |
754 | Abs(GetFlyout ()), |
fe83e1ea |
755 | theMode); |
d7bffd44 |
756 | } |
7fd59977 |
757 | |
d7bffd44 |
758 | // arrows and arrow extensions |
fe83e1ea |
759 | if (theMode == ComputeMode_All || theMode == ComputeMode_Line) |
d7bffd44 |
760 | { |
761 | Prs3d_Root::NewGroup (thePresentation); |
762 | |
60bf98ae |
763 | DrawArrow (thePresentation, aFirstArrowBegin, gp_Dir (aFirstArrowVec)); |
764 | DrawArrow (thePresentation, aSecondArrowBegin, gp_Dir (aSecondArrowVec)); |
d7bffd44 |
765 | } |
766 | |
fe83e1ea |
767 | if ((theMode == ComputeMode_All || theMode == ComputeMode_Line) && isArrowsExternal) |
d7bffd44 |
768 | { |
769 | Prs3d_Root::NewGroup (thePresentation); |
770 | |
771 | if (aHPosition != LabelPosition_Left) |
772 | { |
60bf98ae |
773 | DrawExtension (thePresentation, |
af203d54 |
774 | aDimensionAspect->ArrowTailSize(), |
d7bffd44 |
775 | aFirstArrowEnd, |
776 | aFirstExtensionDir, |
fe83e1ea |
777 | THE_EMPTY_LABEL_STRING, |
778 | THE_EMPTY_LABEL_WIDTH, |
779 | theMode, |
d7bffd44 |
780 | LabelPosition_None); |
781 | } |
782 | |
783 | if (aHPosition != LabelPosition_Right) |
a6eb515f |
784 | { |
60bf98ae |
785 | DrawExtension (thePresentation, |
af203d54 |
786 | aDimensionAspect->ArrowTailSize(), |
d7bffd44 |
787 | aSecondArrowEnd, |
788 | aSecondExtensionDir, |
fe83e1ea |
789 | THE_EMPTY_LABEL_STRING, |
790 | THE_EMPTY_LABEL_WIDTH, |
791 | theMode, |
d7bffd44 |
792 | LabelPosition_None); |
a6eb515f |
793 | } |
794 | } |
7fd59977 |
795 | |
d7bffd44 |
796 | // flyouts |
60bf98ae |
797 | if (theMode == ComputeMode_All) |
a6eb515f |
798 | { |
d7bffd44 |
799 | Prs3d_Root::NewGroup (thePresentation); |
800 | |
801 | Handle(Graphic3d_ArrayOfSegments) aPrimSegments = new Graphic3d_ArrayOfSegments (4); |
60bf98ae |
802 | aPrimSegments->AddVertex (myCenterPoint); |
a6eb515f |
803 | aPrimSegments->AddVertex (aFirstAttach); |
60bf98ae |
804 | aPrimSegments->AddVertex (myCenterPoint); |
a6eb515f |
805 | aPrimSegments->AddVertex (aSecondAttach); |
d7bffd44 |
806 | |
807 | Handle(Graphic3d_AspectLine3d) aFlyoutStyle = myDrawer->DimensionAspect()->LineAspect()->Aspect(); |
808 | Prs3d_Root::CurrentGroup (thePresentation)->SetPrimitivesAspect (aFlyoutStyle); |
a6eb515f |
809 | Prs3d_Root::CurrentGroup (thePresentation)->AddPrimitiveArray (aPrimSegments); |
7fd59977 |
810 | } |
811 | |
91b16a64 |
812 | mySelectionGeom.IsComputed = Standard_True; |
7fd59977 |
813 | } |
62b6361a |
814 | |
815 | //======================================================================= |
60bf98ae |
816 | //function : ComputeFlyoutSelection |
62b6361a |
817 | //purpose : computes selection for flyouts |
818 | //======================================================================= |
60bf98ae |
819 | void AIS_AngleDimension::ComputeFlyoutSelection (const Handle(SelectMgr_Selection)& theSelection, |
fe83e1ea |
820 | const Handle(SelectMgr_EntityOwner)& theOwner) |
62b6361a |
821 | { |
60bf98ae |
822 | gp_Pnt aFirstAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, myFirstPoint).Normalized() * GetFlyout()); |
823 | gp_Pnt aSecondAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, mySecondPoint).Normalized() * GetFlyout()); |
824 | |
825 | Handle(Select3D_SensitiveGroup) aSensitiveEntity = new Select3D_SensitiveGroup (theOwner); |
826 | aSensitiveEntity->Add (new Select3D_SensitiveSegment (theOwner, myCenterPoint, aFirstAttach)); |
827 | aSensitiveEntity->Add (new Select3D_SensitiveSegment (theOwner, myCenterPoint, aSecondAttach)); |
828 | |
829 | theSelection->Add (aSensitiveEntity); |
830 | } |
831 | |
832 | //======================================================================= |
833 | //function : InitTwoEdgesAngle |
834 | //purpose : |
835 | //======================================================================= |
836 | Standard_Boolean AIS_AngleDimension::InitTwoEdgesAngle (gp_Pln& theComputedPlane) |
837 | { |
838 | TopoDS_Edge aFirstEdge = TopoDS::Edge (myFirstShape); |
839 | TopoDS_Edge aSecondEdge = TopoDS::Edge (mySecondShape); |
840 | |
841 | BRepAdaptor_Curve aMakeFirstLine (aFirstEdge); |
842 | BRepAdaptor_Curve aMakeSecondLine (aSecondEdge); |
843 | |
844 | if (aMakeFirstLine.GetType() != GeomAbs_Line || aMakeSecondLine.GetType() != GeomAbs_Line) |
fe83e1ea |
845 | { |
60bf98ae |
846 | return Standard_False; |
fe83e1ea |
847 | } |
848 | |
60bf98ae |
849 | Handle(Geom_Line) aFirstLine = new Geom_Line (aMakeFirstLine.Line()); |
850 | Handle(Geom_Line) aSecondLine = new Geom_Line (aMakeSecondLine.Line()); |
fe83e1ea |
851 | |
60bf98ae |
852 | gp_Lin aFirstLin = aFirstLine->Lin(); |
853 | gp_Lin aSecondLin = aSecondLine->Lin(); |
fe83e1ea |
854 | |
4d147bf2 |
855 | Standard_Boolean isParallelLines = aFirstLin.Direction().IsParallel (aSecondLin.Direction(), Precision::Angular()); |
60bf98ae |
856 | |
4d147bf2 |
857 | theComputedPlane = isParallelLines ? gp_Pln(gp::XOY()) |
858 | : gp_Pln (aSecondLin.Location(), gp_Vec (aFirstLin.Direction()) ^ gp_Vec (aSecondLin.Direction())); |
60bf98ae |
859 | |
4d147bf2 |
860 | // Compute geometry for this plane and edges |
60bf98ae |
861 | Standard_Boolean isInfinite1,isInfinite2; |
862 | gp_Pnt aFirstPoint1, aLastPoint1, aFirstPoint2, aLastPoint2; |
aa00364d |
863 | Handle(Geom_Curve) aFirstCurve = aFirstLine, aSecondCurve = aSecondLine; |
60bf98ae |
864 | if (!AIS::ComputeGeometry (aFirstEdge, aSecondEdge, |
aa00364d |
865 | aFirstCurve, aSecondCurve, |
60bf98ae |
866 | aFirstPoint1, aLastPoint1, |
867 | aFirstPoint2, aLastPoint2, |
868 | isInfinite1, isInfinite2)) |
869 | { |
870 | return Standard_False; |
871 | } |
872 | |
4d147bf2 |
873 | Standard_Boolean isSameLines = aFirstLin.Direction().IsEqual (aSecondLin.Direction(), Precision::Angular()) |
874 | && aFirstLin.Location().IsEqual (aSecondLin.Location(),Precision::Confusion()); |
875 | |
876 | // It can be the same gp_Lin geometry but the different begin and end parameters |
877 | Standard_Boolean isSameEdges = |
878 | (aFirstPoint1.IsEqual (aFirstPoint2, Precision::Confusion()) && aLastPoint1.IsEqual (aLastPoint2, Precision::Confusion())) |
879 | || (aFirstPoint1.IsEqual (aLastPoint2, Precision::Confusion()) && aLastPoint1.IsEqual (aFirstPoint2, Precision::Confusion())); |
60bf98ae |
880 | |
4d147bf2 |
881 | if (isParallelLines) |
882 | { |
883 | // Zero angle, it could not handle this geometry |
884 | if (isSameLines && isSameEdges) |
60bf98ae |
885 | { |
4d147bf2 |
886 | return Standard_False; |
60bf98ae |
887 | } |
888 | |
4d147bf2 |
889 | // Handle the case of Pi angle |
890 | const Standard_Real aParam11 = ElCLib::Parameter (aFirstLin, aFirstPoint1); |
891 | const Standard_Real aParam12 = ElCLib::Parameter (aFirstLin, aLastPoint1); |
892 | const Standard_Real aParam21 = ElCLib::Parameter (aFirstLin, aFirstPoint2); |
893 | const Standard_Real aParam22 = ElCLib::Parameter (aFirstLin, aLastPoint2); |
894 | myCenterPoint = ElCLib::Value ( (Min (aParam11, aParam12) + Max (aParam21, aParam22)) * 0.5, aFirstLin); |
895 | myFirstPoint = myCenterPoint.Translated (gp_Vec (aFirstLin.Direction()) * Abs (GetFlyout())); |
896 | mySecondPoint = myCenterPoint.XYZ() + (aFirstLin.Direction().IsEqual (aSecondLin.Direction(), Precision::Angular()) |
897 | ? aFirstLin.Direction().Reversed().XYZ() * Abs (GetFlyout()) |
898 | : aSecondLin.Direction().XYZ() * Abs (GetFlyout())); |
60bf98ae |
899 | } |
900 | else |
901 | { |
902 | // Find intersection |
903 | gp_Lin2d aFirstLin2d = ProjLib::Project (theComputedPlane, aFirstLin); |
904 | gp_Lin2d aSecondLin2d = ProjLib::Project (theComputedPlane, aSecondLin); |
905 | |
906 | IntAna2d_AnaIntersection anInt2d (aFirstLin2d, aSecondLin2d); |
907 | gp_Pnt2d anIntersectPoint; |
908 | if (!anInt2d.IsDone() || anInt2d.IsEmpty()) |
909 | { |
910 | return Standard_False; |
911 | } |
912 | |
913 | anIntersectPoint = gp_Pnt2d (anInt2d.Point(1).Value()); |
914 | myCenterPoint = ElCLib::To3d (theComputedPlane.Position().Ax2(), anIntersectPoint); |
915 | |
916 | if (isInfinite1 || isInfinite2) |
917 | { |
918 | myFirstPoint = myCenterPoint.Translated (gp_Vec (aFirstLin.Direction()) * Abs (GetFlyout())); |
919 | mySecondPoint = myCenterPoint.Translated (gp_Vec (aSecondLin.Direction()) * Abs (GetFlyout())); |
920 | |
921 | return IsValidPoints (myFirstPoint, myCenterPoint, mySecondPoint); |
922 | } |
923 | |
924 | // | |
925 | // | <- dimension should be here |
926 | // *---- |
927 | myFirstPoint = myCenterPoint.Distance (aFirstPoint1) > myCenterPoint.Distance (aLastPoint1) |
928 | ? aFirstPoint1 |
929 | : aLastPoint1; |
930 | |
931 | mySecondPoint = myCenterPoint.Distance (aFirstPoint2) > myCenterPoint.Distance (aLastPoint2) |
932 | ? aFirstPoint2 |
933 | : aLastPoint2; |
934 | } |
935 | |
936 | return IsValidPoints (myFirstPoint, myCenterPoint, mySecondPoint); |
937 | } |
938 | |
939 | //======================================================================= |
940 | //function : InitTwoFacesAngle |
941 | //purpose : initialization of angle dimension between two faces |
942 | //======================================================================= |
943 | Standard_Boolean AIS_AngleDimension::InitTwoFacesAngle() |
944 | { |
945 | TopoDS_Face aFirstFace = TopoDS::Face (myFirstShape); |
946 | TopoDS_Face aSecondFace = TopoDS::Face (mySecondShape); |
947 | |
948 | gp_Dir aFirstDir, aSecondDir; |
51740958 |
949 | gp_Pln aFirstPln, aSecondPln; |
60bf98ae |
950 | Handle(Geom_Surface) aFirstBasisSurf, aSecondBasisSurf; |
951 | AIS_KindOfSurface aFirstSurfType, aSecondSurfType; |
952 | Standard_Real aFirstOffset, aSecondOffset; |
953 | |
51740958 |
954 | AIS::GetPlaneFromFace (aFirstFace, aFirstPln, |
60bf98ae |
955 | aFirstBasisSurf,aFirstSurfType,aFirstOffset); |
956 | |
51740958 |
957 | AIS::GetPlaneFromFace (aSecondFace, aSecondPln, |
60bf98ae |
958 | aSecondBasisSurf, aSecondSurfType, aSecondOffset); |
959 | |
960 | if (aFirstSurfType == AIS_KOS_Plane && aSecondSurfType == AIS_KOS_Plane) |
961 | { |
962 | //Planar faces angle |
963 | Handle(Geom_Plane) aFirstPlane = Handle(Geom_Plane)::DownCast (aFirstBasisSurf); |
964 | Handle(Geom_Plane) aSecondPlane = Handle(Geom_Plane)::DownCast (aSecondBasisSurf); |
965 | return AIS::InitAngleBetweenPlanarFaces (aFirstFace, |
966 | aSecondFace, |
967 | myCenterPoint, |
968 | myFirstPoint, |
969 | mySecondPoint) |
970 | && IsValidPoints (myFirstPoint, |
971 | myCenterPoint, |
972 | mySecondPoint); |
973 | } |
974 | else |
975 | { |
976 | // Curvilinear faces angle |
977 | return AIS::InitAngleBetweenCurvilinearFaces (aFirstFace, |
978 | aSecondFace, |
979 | aFirstSurfType, |
980 | aSecondSurfType, |
981 | myCenterPoint, |
982 | myFirstPoint, |
983 | mySecondPoint) |
984 | && IsValidPoints (myFirstPoint, |
985 | myCenterPoint, |
986 | mySecondPoint); |
987 | } |
988 | } |
989 | |
990 | //======================================================================= |
991 | //function : InitTwoFacesAngle |
992 | //purpose : initialization of angle dimension between two faces |
993 | //======================================================================= |
994 | Standard_Boolean AIS_AngleDimension::InitTwoFacesAngle (const gp_Pnt thePointOnFirstFace) |
995 | { |
996 | TopoDS_Face aFirstFace = TopoDS::Face (myFirstShape); |
997 | TopoDS_Face aSecondFace = TopoDS::Face (mySecondShape); |
998 | |
999 | gp_Dir aFirstDir, aSecondDir; |
51740958 |
1000 | gp_Pln aFirstPln, aSecondPln; |
60bf98ae |
1001 | Handle(Geom_Surface) aFirstBasisSurf, aSecondBasisSurf; |
1002 | AIS_KindOfSurface aFirstSurfType, aSecondSurfType; |
1003 | Standard_Real aFirstOffset, aSecondOffset; |
1004 | |
51740958 |
1005 | AIS::GetPlaneFromFace (aFirstFace, aFirstPln, |
60bf98ae |
1006 | aFirstBasisSurf,aFirstSurfType,aFirstOffset); |
1007 | |
51740958 |
1008 | AIS::GetPlaneFromFace (aSecondFace, aSecondPln, |
60bf98ae |
1009 | aSecondBasisSurf, aSecondSurfType, aSecondOffset); |
1010 | |
1011 | myFirstPoint = thePointOnFirstFace; |
1012 | if (aFirstSurfType == AIS_KOS_Plane && aSecondSurfType == AIS_KOS_Plane) |
1013 | { |
1014 | //Planar faces angle |
1015 | Handle(Geom_Plane) aFirstPlane = Handle(Geom_Plane)::DownCast (aFirstBasisSurf); |
1016 | Handle(Geom_Plane) aSecondPlane = Handle(Geom_Plane)::DownCast (aSecondBasisSurf); |
1017 | return AIS::InitAngleBetweenPlanarFaces (aFirstFace, |
1018 | aSecondFace, |
1019 | myCenterPoint, |
1020 | myFirstPoint, |
1021 | mySecondPoint, |
1022 | Standard_True) |
1023 | && IsValidPoints (myFirstPoint, |
1024 | myCenterPoint, |
1025 | mySecondPoint); |
1026 | } |
1027 | else |
1028 | { |
1029 | // Curvilinear faces angle |
1030 | return AIS::InitAngleBetweenCurvilinearFaces (aFirstFace, |
1031 | aSecondFace, |
1032 | aFirstSurfType, |
1033 | aSecondSurfType, |
1034 | myCenterPoint, |
1035 | myFirstPoint, |
1036 | mySecondPoint, |
1037 | Standard_True) |
1038 | && IsValidPoints (myFirstPoint, |
1039 | myCenterPoint, |
1040 | mySecondPoint); |
1041 | } |
1042 | } |
1043 | |
1044 | //======================================================================= |
1045 | //function : InitConeAngle |
1046 | //purpose : initialization of the cone angle |
1047 | //======================================================================= |
1048 | Standard_Boolean AIS_AngleDimension::InitConeAngle() |
1049 | { |
1050 | if (myFirstShape.IsNull()) |
1051 | { |
1052 | return Standard_False; |
1053 | } |
1054 | |
1055 | TopoDS_Face aConeShape = TopoDS::Face (myFirstShape); |
1056 | gp_Pln aPln; |
1057 | gp_Cone aCone; |
1058 | gp_Circ aCircle; |
1059 | // A surface from the Face |
1060 | Handle(Geom_Surface) aSurf; |
1061 | Handle(Geom_OffsetSurface) aOffsetSurf; |
1062 | Handle(Geom_ConicalSurface) aConicalSurf; |
1063 | Handle(Geom_SurfaceOfRevolution) aRevSurf; |
1064 | Handle(Geom_Line) aLine; |
1065 | BRepAdaptor_Surface aConeAdaptor (aConeShape); |
1066 | TopoDS_Face aFace; |
1067 | AIS_KindOfSurface aSurfType; |
1068 | Standard_Real anOffset = 0.; |
1069 | Handle(Standard_Type) aType; |
1070 | |
1071 | Standard_Real aMaxV = aConeAdaptor.FirstVParameter(); |
1072 | Standard_Real aMinV = aConeAdaptor.LastVParameter(); |
1073 | |
1074 | AIS::GetPlaneFromFace (aConeShape, aPln, aSurf, aSurfType, anOffset); |
1075 | |
1076 | if (aSurfType == AIS_KOS_Revolution) |
1077 | { |
1078 | // Surface of revolution |
1079 | aRevSurf = Handle(Geom_SurfaceOfRevolution)::DownCast(aSurf); |
1080 | gp_Lin aLin (aRevSurf->Axis()); |
1081 | Handle(Geom_Curve) aBasisCurve = aRevSurf->BasisCurve(); |
1082 | //Must be a part of line (basis curve should be linear) |
1083 | if (aBasisCurve ->DynamicType() != STANDARD_TYPE(Geom_Line)) |
1084 | return Standard_False; |
1085 | |
1086 | gp_Pnt aFirst1 = aConeAdaptor.Value (0., aMinV); |
1087 | gp_Pnt aLast1 = aConeAdaptor.Value (0., aMaxV); |
1088 | gp_Vec aVec1 (aFirst1, aLast1); |
1089 | |
1090 | //Projection <aFirst> on <aLin> |
1091 | gp_Pnt aFirst2 = ElCLib::Value (ElCLib::Parameter (aLin, aFirst1), aLin); |
1092 | // Projection <aLast> on <aLin> |
1093 | gp_Pnt aLast2 = ElCLib::Value (ElCLib::Parameter (aLin, aLast1), aLin); |
1094 | |
1095 | gp_Vec aVec2 (aFirst2, aLast2); |
1096 | |
1097 | // Check if two parts of revolution are parallel (it's a cylinder) or normal (it's a circle). |
1098 | if (aVec1.IsParallel (aVec2, Precision::Angular()) |
1099 | || aVec1.IsNormal (aVec2,Precision::Angular())) |
1100 | return Standard_False; |
1101 | |
1102 | gce_MakeCone aMkCone (aRevSurf->Axis(), aFirst1, aLast1); |
1103 | aCone = aMkCone.Value(); |
1104 | myCenterPoint = aCone.Apex(); |
1105 | } |
1106 | else |
1107 | { |
1108 | aType = aSurf->DynamicType(); |
1109 | if (aType == STANDARD_TYPE(Geom_OffsetSurface) || anOffset > 0.01) |
1110 | { |
1111 | // Offset surface |
1112 | aOffsetSurf = new Geom_OffsetSurface (aSurf, anOffset); |
1113 | aSurf = aOffsetSurf->Surface(); |
1114 | BRepBuilderAPI_MakeFace aMkFace(aSurf, Precision::Confusion()); |
1115 | aMkFace.Build(); |
1116 | if (!aMkFace.IsDone()) |
1117 | return Standard_False; |
1118 | aConeAdaptor.Initialize (aMkFace.Face()); |
1119 | } |
1120 | aCone = aConeAdaptor.Cone(); |
1121 | aConicalSurf = Handle(Geom_ConicalSurface)::DownCast (aSurf); |
1122 | myCenterPoint = aConicalSurf->Apex(); |
1123 | } |
1124 | |
1125 | // A circle where the angle is drawn |
1126 | Handle(Geom_Curve) aCurve; |
1127 | Standard_Real aMidV = ( aMinV + aMaxV ) / 2.5; |
1128 | aCurve = aSurf->VIso (aMidV); |
1129 | aCircle = Handle(Geom_Circle)::DownCast (aCurve)->Circ(); |
1130 | |
1131 | aCurve = aSurf->VIso(aMaxV); |
1132 | gp_Circ aCircVmax = Handle(Geom_Circle)::DownCast(aCurve)->Circ(); |
1133 | aCurve = aSurf->VIso(aMinV); |
1134 | gp_Circ aCircVmin = Handle(Geom_Circle)::DownCast(aCurve)->Circ(); |
1135 | |
1136 | if (aCircVmax.Radius() < aCircVmin.Radius()) |
1137 | { |
1138 | gp_Circ aTmpCirc = aCircVmax; |
1139 | aCircVmax = aCircVmin; |
1140 | aCircVmin = aTmpCirc; |
1141 | } |
1142 | |
1143 | myFirstPoint = ElCLib::Value (0, aCircle); |
1144 | mySecondPoint = ElCLib::Value (M_PI, aCircle); |
1145 | return Standard_True; |
1146 | } |
1147 | |
1148 | //======================================================================= |
1149 | //function : IsValidPoints |
1150 | //purpose : |
1151 | //======================================================================= |
1152 | Standard_Boolean AIS_AngleDimension::IsValidPoints (const gp_Pnt& theFirstPoint, |
1153 | const gp_Pnt& theCenterPoint, |
1154 | const gp_Pnt& theSecondPoint) const |
1155 | { |
1156 | return theFirstPoint.Distance (theCenterPoint) > Precision::Confusion() |
1157 | && theSecondPoint.Distance (theCenterPoint) > Precision::Confusion() |
1158 | && gp_Vec (theCenterPoint, theFirstPoint).Angle ( |
1159 | gp_Vec (theCenterPoint, theSecondPoint)) > Precision::Angular(); |
d7bffd44 |
1160 | } |
af203d54 |
1161 | |
1162 | //======================================================================= |
1163 | //function : GetTextPosition |
1164 | //purpose : |
1165 | //======================================================================= |
1166 | const gp_Pnt AIS_AngleDimension::GetTextPosition() const |
1167 | { |
1168 | if (!IsValid()) |
1169 | { |
1170 | return gp::Origin(); |
1171 | } |
1172 | |
1173 | if (IsTextPositionCustom()) |
1174 | { |
1175 | return myFixedTextPosition; |
1176 | } |
1177 | |
1178 | // Counts text position according to the dimension parameters |
1179 | gp_Pnt aTextPosition (gp::Origin()); |
1180 | |
1181 | Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect(); |
1182 | |
1183 | // Prepare label string and compute its geometrical width |
1184 | Standard_Real aLabelWidth; |
1185 | TCollection_ExtendedString aLabelString = GetValueString (aLabelWidth); |
1186 | |
1187 | gp_Pnt aFirstAttach = myCenterPoint.Translated (gp_Vec(myCenterPoint, myFirstPoint).Normalized() * GetFlyout()); |
1188 | gp_Pnt aSecondAttach = myCenterPoint.Translated (gp_Vec(myCenterPoint, mySecondPoint).Normalized() * GetFlyout()); |
1189 | |
1190 | // Handle user-defined and automatic arrow placement |
1191 | Standard_Boolean isArrowsExternal = Standard_False; |
1192 | Standard_Integer aLabelPosition = LabelPosition_None; |
1193 | FitTextAlignment (aDimensionAspect->TextHorizontalPosition(), |
1194 | aLabelPosition, isArrowsExternal); |
1195 | |
1196 | // Get text position |
1197 | switch (aLabelPosition & LabelPosition_HMask) |
1198 | { |
1199 | case LabelPosition_HCenter: |
1200 | { |
1201 | aTextPosition = GetCenterOnArc (aFirstAttach, aSecondAttach, myCenterPoint); |
1202 | } |
1203 | break; |
1204 | case LabelPosition_Left: |
1205 | { |
1206 | gp_Dir aPlaneNormal = gp_Vec (aFirstAttach, aSecondAttach) ^ gp_Vec (myCenterPoint, aFirstAttach); |
1207 | gp_Dir anExtensionDir = aPlaneNormal ^ gp_Vec (myCenterPoint, aFirstAttach); |
1208 | Standard_Real anExtensionSize = aDimensionAspect->ExtensionSize(); |
1209 | Standard_Real anOffset = isArrowsExternal |
1210 | ? anExtensionSize + aDimensionAspect->ArrowAspect()->Length() |
1211 | : anExtensionSize; |
1212 | gp_Vec anExtensionVec = gp_Vec (anExtensionDir) * -anOffset; |
1213 | aTextPosition = aFirstAttach.Translated (anExtensionVec); |
1214 | } |
1215 | break; |
1216 | case LabelPosition_Right: |
1217 | { |
1218 | gp_Dir aPlaneNormal = gp_Vec (aFirstAttach, aSecondAttach) ^ gp_Vec (myCenterPoint, aFirstAttach); |
1219 | gp_Dir anExtensionDir = aPlaneNormal ^ gp_Vec (myCenterPoint, aSecondAttach); |
1220 | Standard_Real anExtensionSize = aDimensionAspect->ExtensionSize(); |
1221 | Standard_Real anOffset = isArrowsExternal |
1222 | ? anExtensionSize + aDimensionAspect->ArrowAspect()->Length() |
1223 | : anExtensionSize; |
1224 | gp_Vec anExtensionVec = gp_Vec (anExtensionDir) * anOffset; |
1225 | aTextPosition = aSecondAttach.Translated (anExtensionVec); |
1226 | } |
1227 | break; |
1228 | } |
1229 | |
1230 | return aTextPosition; |
1231 | } |
1232 | |
1233 | //======================================================================= |
1234 | //function : SetTextPosition |
1235 | //purpose : |
1236 | //======================================================================= |
1237 | void AIS_AngleDimension::SetTextPosition (const gp_Pnt& theTextPos) |
1238 | { |
1239 | if (!IsValid()) |
1240 | { |
1241 | return; |
1242 | } |
1243 | |
1244 | // The text position point for angle dimension should belong to the working plane. |
1245 | if (!GetPlane().Contains (theTextPos, Precision::Confusion())) |
1246 | { |
1247 | Standard_ProgramError::Raise ("The text position point for angle dimension doesn't belong to the working plane."); |
1248 | } |
1249 | |
1250 | myIsTextPositionFixed = Standard_True; |
1251 | myFixedTextPosition = theTextPos; |
1252 | } |
1253 | |
1254 | //======================================================================= |
91b16a64 |
1255 | //function : AdjustParameters |
af203d54 |
1256 | //purpose : |
1257 | //======================================================================= |
1258 | void AIS_AngleDimension::AdjustParameters (const gp_Pnt& theTextPos, |
1259 | Standard_Real& theExtensionSize, |
91b16a64 |
1260 | Prs3d_DimensionTextHorizontalPosition& theAlignment, |
1261 | Standard_Real& theFlyout) const |
af203d54 |
1262 | { |
1263 | Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect(); |
1264 | Standard_Real anArrowLength = aDimensionAspect->ArrowAspect()->Length(); |
1265 | |
af203d54 |
1266 | // Build circle with radius that is equal to distance from text position to the center point. |
1267 | Standard_Real aRadius = gp_Vec (myCenterPoint, theTextPos).Magnitude(); |
1268 | |
1269 | // Set attach points in positive direction of the flyout. |
1270 | gp_Pnt aFirstAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, myFirstPoint).Normalized() * aRadius); |
1271 | gp_Pnt aSecondAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, mySecondPoint).Normalized() * aRadius); |
1272 | |
1273 | gce_MakeCirc aConstructCircle (myCenterPoint, GetPlane(), aRadius); |
1274 | if (!aConstructCircle.IsDone()) |
1275 | { |
1276 | return; |
1277 | } |
1278 | gp_Circ aCircle = aConstructCircle.Value(); |
1279 | |
1280 | // Default values |
1281 | theExtensionSize = aDimensionAspect->ArrowAspect()->Length(); |
1282 | theAlignment = Prs3d_DTHP_Center; |
1283 | |
1284 | Standard_Real aParamBeg = ElCLib::Parameter (aCircle, aFirstAttach); |
1285 | Standard_Real aParamEnd = ElCLib::Parameter (aCircle, aSecondAttach); |
1286 | if (aParamEnd < aParamBeg) |
1287 | { |
1288 | Standard_Real aParam = aParamEnd; |
1289 | aParamEnd = aParamBeg; |
1290 | aParamBeg = aParam; |
1291 | } |
1292 | |
1293 | ElCLib::AdjustPeriodic (0.0, M_PI * 2, Precision::PConfusion(), aParamBeg, aParamEnd); |
1294 | Standard_Real aTextPar = ElCLib::Parameter (aCircle , theTextPos); |
1295 | |
1296 | // Horizontal center |
1297 | if (aTextPar > aParamBeg && aTextPar < aParamEnd) |
1298 | { |
91b16a64 |
1299 | theFlyout = aRadius; |
af203d54 |
1300 | return; |
1301 | } |
1302 | |
1303 | aParamBeg += M_PI; |
1304 | aParamEnd += M_PI; |
1305 | ElCLib::AdjustPeriodic (0.0, M_PI * 2, Precision::PConfusion(), aParamBeg, aParamEnd); |
1306 | |
1307 | if (aTextPar > aParamBeg && aTextPar < aParamEnd) |
1308 | { |
91b16a64 |
1309 | theFlyout = -aRadius; |
af203d54 |
1310 | return; |
1311 | } |
1312 | |
1313 | // Text on the extensions |
1314 | gp_Lin aFirstLine = gce_MakeLin (myCenterPoint, myFirstPoint); |
1315 | gp_Lin aSecondLine = gce_MakeLin (myCenterPoint, mySecondPoint); |
1316 | gp_Pnt aFirstTextProj = AIS::Nearest (aFirstLine, theTextPos); |
1317 | gp_Pnt aSecondTextProj = AIS::Nearest (aSecondLine, theTextPos); |
1318 | Standard_Real aFirstDist = aFirstTextProj.Distance (theTextPos); |
1319 | Standard_Real aSecondDist = aSecondTextProj.Distance (theTextPos); |
1320 | |
1321 | if (aFirstDist <= aSecondDist) |
1322 | { |
1323 | aRadius = myCenterPoint.Distance (aFirstTextProj); |
1324 | Standard_Real aNewExtensionSize = aFirstDist - anArrowLength; |
1325 | theExtensionSize = aNewExtensionSize < 0.0 ? 0.0 : aNewExtensionSize; |
1326 | |
1327 | theAlignment = Prs3d_DTHP_Left; |
1328 | |
1329 | gp_Vec aPosFlyoutDir = gp_Vec (myCenterPoint, myFirstPoint).Normalized().Scaled (aRadius); |
1330 | |
91b16a64 |
1331 | theFlyout = aFirstTextProj.Distance (myCenterPoint.Translated (aPosFlyoutDir)) > Precision::Confusion() |
af203d54 |
1332 | ? -aRadius : aRadius; |
1333 | } |
1334 | else |
1335 | { |
1336 | aRadius = myCenterPoint.Distance (aSecondTextProj); |
1337 | |
1338 | Standard_Real aNewExtensionSize = aSecondDist - anArrowLength; |
1339 | |
1340 | theExtensionSize = aNewExtensionSize < 0.0 ? 0.0 : aNewExtensionSize; |
1341 | |
1342 | theAlignment = Prs3d_DTHP_Right; |
1343 | |
1344 | gp_Vec aPosFlyoutDir = gp_Vec (myCenterPoint, mySecondPoint).Normalized().Scaled (aRadius); |
1345 | |
91b16a64 |
1346 | theFlyout = aSecondTextProj.Distance (myCenterPoint.Translated (aPosFlyoutDir)) > Precision::Confusion() |
af203d54 |
1347 | ? -aRadius : aRadius; |
1348 | } |
1349 | } |
1350 | |
1351 | //======================================================================= |
1352 | //function : FitTextAlignment |
1353 | //purpose : |
1354 | //======================================================================= |
1355 | void AIS_AngleDimension::FitTextAlignment (const Prs3d_DimensionTextHorizontalPosition& theHorizontalTextPos, |
1356 | Standard_Integer& theLabelPosition, |
1357 | Standard_Boolean& theIsArrowsExternal) const |
1358 | { |
1359 | Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect(); |
1360 | |
1361 | Quantity_Length anArrowLength = aDimensionAspect->ArrowAspect()->Length(); |
1362 | |
1363 | // Prepare label string and compute its geometrical width |
1364 | Standard_Real aLabelWidth; |
1365 | TCollection_ExtendedString aLabelString = GetValueString (aLabelWidth); |
1366 | |
1367 | // add margins to label width |
1368 | if (aDimensionAspect->IsText3d()) |
1369 | { |
1370 | aLabelWidth += aDimensionAspect->TextAspect()->Height() * THE_3D_TEXT_MARGIN * 2.0; |
1371 | } |
1372 | |
1373 | gp_Pnt aFirstAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, myFirstPoint).Normalized() * GetFlyout()); |
1374 | gp_Pnt aSecondAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, mySecondPoint).Normalized() * GetFlyout()); |
1375 | |
1376 | // Handle user-defined and automatic arrow placement |
1377 | switch (aDimensionAspect->ArrowOrientation()) |
1378 | { |
1379 | case Prs3d_DAO_External: theIsArrowsExternal = true; break; |
1380 | case Prs3d_DAO_Internal: theIsArrowsExternal = false; break; |
1381 | case Prs3d_DAO_Fit: |
1382 | { |
1383 | gp_Vec anAttachVector (aFirstAttach, aSecondAttach); |
1384 | Standard_Real aDimensionWidth = anAttachVector.Magnitude(); |
1385 | |
1386 | // Add margin to ensure a small tail between text and arrow |
1387 | Standard_Real anArrowMargin = aDimensionAspect->IsText3d() |
1388 | ? aDimensionAspect->TextAspect()->Height() * THE_3D_TEXT_MARGIN |
1389 | : 0.0; |
1390 | |
1391 | Standard_Real anArrowsWidth = (anArrowLength + anArrowMargin) * 2.0; |
1392 | |
1393 | theIsArrowsExternal = aDimensionWidth < aLabelWidth + anArrowsWidth; |
1394 | break; |
1395 | } |
1396 | } |
1397 | |
1398 | // Handle user-defined and automatic text placement |
1399 | switch (theHorizontalTextPos) |
1400 | { |
1401 | case Prs3d_DTHP_Left : theLabelPosition |= LabelPosition_Left; break; |
1402 | case Prs3d_DTHP_Right : theLabelPosition |= LabelPosition_Right; break; |
1403 | case Prs3d_DTHP_Center: theLabelPosition |= LabelPosition_HCenter; break; |
1404 | case Prs3d_DTHP_Fit: |
1405 | { |
1406 | gp_Vec anAttachVector (aFirstAttach, aSecondAttach); |
1407 | Standard_Real aDimensionWidth = anAttachVector.Magnitude(); |
1408 | Standard_Real anArrowsWidth = anArrowLength * 2.0; |
1409 | Standard_Real aContentWidth = theIsArrowsExternal ? aLabelWidth : aLabelWidth + anArrowsWidth; |
1410 | |
1411 | theLabelPosition |= aDimensionWidth < aContentWidth ? LabelPosition_Left : LabelPosition_HCenter; |
1412 | break; |
1413 | } |
1414 | } |
1415 | |
1416 | switch (aDimensionAspect->TextVerticalPosition()) |
1417 | { |
1418 | case Prs3d_DTVP_Above : theLabelPosition |= LabelPosition_Above; break; |
1419 | case Prs3d_DTVP_Below : theLabelPosition |= LabelPosition_Below; break; |
1420 | case Prs3d_DTVP_Center : theLabelPosition |= LabelPosition_VCenter; break; |
1421 | } |
1422 | } |