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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 | SetType (AIS_TOA_Interior); |
283 | SetArrowsVisibility (AIS_TOAV_Both); |
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284 | SetSpecialSymbol (THE_DEGREE_SYMBOL); |
285 | SetDisplaySpecialSymbol (AIS_DSS_After); |
286 | SetFlyout (15.0); |
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287 | } |
288 | |
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289 | //======================================================================= |
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290 | //function: GetCenterOnArc |
291 | //purpose : |
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292 | //======================================================================= |
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293 | gp_Pnt AIS_AngleDimension::GetCenterOnArc (const gp_Pnt& theFirstAttach, |
294 | const gp_Pnt& theSecondAttach, |
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295 | const gp_Pnt& theCenter) const |
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296 | { |
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297 | // construct plane where the circle and the arc are located |
298 | gce_MakePln aConstructPlane (theFirstAttach, theSecondAttach, theCenter); |
299 | if (!aConstructPlane.IsDone()) |
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300 | { |
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301 | return gp::Origin(); |
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302 | } |
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303 | |
304 | gp_Pln aPlane = aConstructPlane.Value(); |
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305 | // to have an exterior angle presentation, a plane for further constructed circle should be reversed |
306 | if (myType == AIS_TOA_Exterior) |
307 | { |
308 | gp_Ax1 anAxis = aPlane.Axis(); |
309 | gp_Dir aDir = anAxis.Direction(); |
310 | aDir.Reverse(); |
311 | aPlane.SetAxis(gp_Ax1(anAxis.Location(), aDir)); |
312 | } |
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313 | |
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314 | Standard_Real aRadius = theFirstAttach.Distance (theCenter); |
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315 | |
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316 | // construct circle forming the arc |
317 | gce_MakeCirc aConstructCircle (theCenter, aPlane, aRadius); |
318 | if (!aConstructCircle.IsDone()) |
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319 | { |
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320 | return gp::Origin(); |
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321 | } |
322 | |
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323 | gp_Circ aCircle = aConstructCircle.Value(); |
324 | |
325 | // compute angle parameters of arc end-points on circle |
326 | Standard_Real aParamBeg = ElCLib::Parameter (aCircle, theFirstAttach); |
327 | Standard_Real aParamEnd = ElCLib::Parameter (aCircle, theSecondAttach); |
328 | ElCLib::AdjustPeriodic (0.0, M_PI * 2, Precision::PConfusion(), aParamBeg, aParamEnd); |
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329 | |
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330 | return ElCLib::Value ((aParamBeg + aParamEnd) * 0.5, aCircle); |
331 | } |
332 | |
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333 | //======================================================================= |
334 | //function : GetNormalForMinAngle |
335 | //purpose : |
336 | //======================================================================= |
337 | gp_Dir AIS_AngleDimension::GetNormalForMinAngle() const |
338 | { |
339 | const gp_Dir& aNormal = myPlane.Axis().Direction(); |
340 | gp_Dir aFirst (gp_Vec (myCenterPoint, myFirstPoint) ); |
341 | gp_Dir aSecond (gp_Vec (myCenterPoint, mySecondPoint) ); |
342 | |
343 | return aFirst.AngleWithRef (aSecond, aNormal) < 0.0 |
344 | ? aNormal.Reversed() |
345 | : aNormal; |
346 | } |
347 | |
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348 | //======================================================================= |
349 | //function : DrawArc |
350 | //purpose : draws the arc between two attach points |
351 | //======================================================================= |
352 | void AIS_AngleDimension::DrawArc (const Handle(Prs3d_Presentation)& thePresentation, |
353 | const gp_Pnt& theFirstAttach, |
354 | const gp_Pnt& theSecondAttach, |
355 | const gp_Pnt& theCenter, |
356 | const Standard_Real theRadius, |
357 | const Standard_Integer theMode) |
358 | { |
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359 | gp_Pln aPlane (myCenterPoint, GetNormalForMinAngle()); |
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360 | |
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361 | // to have an exterior angle presentation, a plane for further constructed circle should be reversed |
362 | if (myType == AIS_TOA_Exterior) |
363 | { |
364 | gp_Ax1 anAxis = aPlane.Axis(); |
365 | gp_Dir aDir = anAxis.Direction(); |
366 | aDir.Reverse(); |
367 | aPlane.SetAxis(gp_Ax1(anAxis.Location(), aDir)); |
368 | } |
369 | |
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370 | // construct circle forming the arc |
371 | gce_MakeCirc aConstructCircle (theCenter, aPlane, theRadius); |
372 | if (!aConstructCircle.IsDone()) |
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373 | { |
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374 | return; |
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375 | } |
376 | |
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377 | gp_Circ aCircle = aConstructCircle.Value(); |
378 | |
379 | // construct the arc |
380 | GC_MakeArcOfCircle aConstructArc (aCircle, theFirstAttach, theSecondAttach, Standard_True); |
381 | if (!aConstructArc.IsDone()) |
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382 | { |
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383 | return; |
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384 | } |
385 | |
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386 | // generate points with specified deflection |
387 | const Handle(Geom_TrimmedCurve)& anArcCurve = aConstructArc.Value(); |
388 | |
389 | GeomAdaptor_Curve anArcAdaptor (anArcCurve, anArcCurve->FirstParameter(), anArcCurve->LastParameter()); |
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390 | |
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391 | // compute number of discretization elements in old-fanshioned way |
392 | gp_Vec aCenterToFirstVec (theCenter, theFirstAttach); |
393 | gp_Vec aCenterToSecondVec (theCenter, theSecondAttach); |
ee905e84 |
394 | Standard_Real anAngle = aCenterToFirstVec.Angle (aCenterToSecondVec); |
395 | if (myType == AIS_TOA_Exterior) |
396 | anAngle = 2.0 * M_PI - anAngle; |
397 | // it sets 50 points on PI, and a part of points if angle is less |
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398 | const Standard_Integer aNbPoints = Max (4, Standard_Integer (50.0 * anAngle / M_PI)); |
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399 | |
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400 | GCPnts_UniformAbscissa aMakePnts (anArcAdaptor, aNbPoints); |
401 | if (!aMakePnts.IsDone()) |
402 | { |
403 | return; |
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404 | } |
405 | |
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406 | // init data arrays for graphical and selection primitives |
407 | Handle(Graphic3d_ArrayOfPolylines) aPrimSegments = new Graphic3d_ArrayOfPolylines (aNbPoints); |
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408 | |
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409 | SelectionGeometry::Curve& aSensitiveCurve = mySelectionGeom.NewCurve(); |
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410 | |
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411 | // load data into arrays |
412 | for (Standard_Integer aPntIt = 1; aPntIt <= aMakePnts.NbPoints(); ++aPntIt) |
a6eb515f |
413 | { |
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414 | gp_Pnt aPnt = anArcAdaptor.Value (aMakePnts.Parameter (aPntIt)); |
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415 | |
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416 | aPrimSegments->AddVertex (aPnt); |
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417 | |
60bf98ae |
418 | aSensitiveCurve.Append (aPnt); |
a6eb515f |
419 | } |
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420 | |
60bf98ae |
421 | // add display presentation |
422 | if (!myDrawer->DimensionAspect()->IsText3d() && theMode == ComputeMode_All) |
423 | { |
424 | Prs3d_Root::CurrentGroup (thePresentation)->SetStencilTestOptions (Standard_True); |
425 | } |
426 | Handle(Graphic3d_AspectLine3d) aDimensionLineStyle = myDrawer->DimensionAspect()->LineAspect()->Aspect(); |
427 | Prs3d_Root::CurrentGroup (thePresentation)->SetPrimitivesAspect (aDimensionLineStyle); |
428 | Prs3d_Root::CurrentGroup (thePresentation)->AddPrimitiveArray (aPrimSegments); |
429 | if (!myDrawer->DimensionAspect()->IsText3d() && theMode == ComputeMode_All) |
430 | { |
431 | Prs3d_Root::CurrentGroup (thePresentation)->SetStencilTestOptions (Standard_False); |
432 | } |
7fd59977 |
433 | } |
a6eb515f |
434 | |
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435 | //======================================================================= |
60bf98ae |
436 | //function: DrawArcWithText |
a6eb515f |
437 | //purpose : |
7fd59977 |
438 | //======================================================================= |
60bf98ae |
439 | void AIS_AngleDimension::DrawArcWithText (const Handle(Prs3d_Presentation)& thePresentation, |
a6eb515f |
440 | const gp_Pnt& theFirstAttach, |
441 | const gp_Pnt& theSecondAttach, |
60bf98ae |
442 | const gp_Pnt& theCenter, |
a6eb515f |
443 | const TCollection_ExtendedString& theText, |
fe83e1ea |
444 | const Standard_Real theTextWidth, |
445 | const Standard_Integer theMode, |
d7bffd44 |
446 | const Standard_Integer theLabelPosition) |
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447 | { |
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448 | gp_Pln aPlane (myCenterPoint, GetNormalForMinAngle()); |
449 | |
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450 | Standard_Real aRadius = theFirstAttach.Distance (myCenterPoint); |
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451 | |
fe83e1ea |
452 | // construct circle forming the arc |
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453 | gce_MakeCirc aConstructCircle (theCenter, aPlane, aRadius); |
fe83e1ea |
454 | if (!aConstructCircle.IsDone()) |
455 | { |
456 | return; |
457 | } |
a6eb515f |
458 | |
fe83e1ea |
459 | gp_Circ aCircle = aConstructCircle.Value(); |
a6eb515f |
460 | |
fe83e1ea |
461 | // compute angle parameters of arc end-points on circle |
462 | Standard_Real aParamBeg = ElCLib::Parameter (aCircle, theFirstAttach); |
463 | Standard_Real aParamEnd = ElCLib::Parameter (aCircle, theSecondAttach); |
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464 | ElCLib::AdjustPeriodic (0.0, M_PI * 2, Precision::PConfusion(), aParamBeg, aParamEnd); |
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465 | |
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466 | // middle point of arc parameter on circle |
467 | Standard_Real aParamMid = (aParamBeg + aParamEnd) * 0.5; |
a6eb515f |
468 | |
fe83e1ea |
469 | // add text graphical primitives |
470 | if (theMode == ComputeMode_All || theMode == ComputeMode_Text) |
471 | { |
472 | gp_Pnt aTextPos = ElCLib::Value (aParamMid, aCircle); |
60bf98ae |
473 | gp_Dir aTextDir = gce_MakeDir (theFirstAttach, theSecondAttach); |
fe83e1ea |
474 | |
475 | // Drawing text |
7c65581d |
476 | drawText (thePresentation, |
fe83e1ea |
477 | aTextPos, |
478 | aTextDir, |
479 | theText, |
480 | theLabelPosition); |
481 | } |
a6eb515f |
482 | |
fe83e1ea |
483 | if (theMode != ComputeMode_All && theMode != ComputeMode_Line) |
484 | { |
485 | return; |
486 | } |
a6eb515f |
487 | |
fe83e1ea |
488 | Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect(); |
a6eb515f |
489 | |
fe83e1ea |
490 | Standard_Boolean isLineBreak = aDimensionAspect->TextVerticalPosition() == Prs3d_DTVP_Center |
491 | && aDimensionAspect->IsText3d(); |
a6eb515f |
492 | |
fe83e1ea |
493 | if (isLineBreak) |
a6eb515f |
494 | { |
fe83e1ea |
495 | // compute gap for label as parameteric size of sector on circle segment |
4d147bf2 |
496 | Standard_Real aSectorOfText = theTextWidth / aRadius; |
497 | Standard_Real aTextBegin = aParamMid - aSectorOfText * 0.5; |
498 | Standard_Real aTextEnd = aParamMid + aSectorOfText * 0.5; |
499 | gp_Pnt aTextPntBeg = ElCLib::Value (aTextBegin, aCircle); |
500 | gp_Pnt aTextPntEnd = ElCLib::Value (aTextEnd, aCircle); |
fe83e1ea |
501 | |
502 | // Drawing arcs |
4d147bf2 |
503 | if (aTextBegin > aParamBeg) |
504 | { |
505 | DrawArc (thePresentation, theFirstAttach, aTextPntBeg, theCenter, aRadius, theMode); |
506 | } |
507 | if (aTextEnd < aParamEnd) |
508 | { |
509 | DrawArc (thePresentation, aTextPntEnd, theSecondAttach, theCenter, aRadius, theMode); |
510 | } |
fe83e1ea |
511 | } |
512 | else |
513 | { |
60bf98ae |
514 | DrawArc (thePresentation, theFirstAttach, theSecondAttach, theCenter, aRadius, theMode); |
7fd59977 |
515 | } |
a6eb515f |
516 | } |
7fd59977 |
517 | |
a6eb515f |
518 | //======================================================================= |
60bf98ae |
519 | //function : CheckPlane |
520 | //purpose : |
a6eb515f |
521 | //======================================================================= |
60bf98ae |
522 | Standard_Boolean AIS_AngleDimension::CheckPlane (const gp_Pln& thePlane)const |
a6eb515f |
523 | { |
60bf98ae |
524 | if (!thePlane.Contains (myFirstPoint, Precision::Confusion()) && |
525 | !thePlane.Contains (mySecondPoint, Precision::Confusion()) && |
526 | !thePlane.Contains (myCenterPoint, Precision::Confusion())) |
fe83e1ea |
527 | { |
60bf98ae |
528 | return Standard_False; |
fe83e1ea |
529 | } |
530 | |
60bf98ae |
531 | return Standard_True; |
532 | } |
a6eb515f |
533 | |
60bf98ae |
534 | //======================================================================= |
535 | //function : ComputePlane |
536 | //purpose : |
537 | //======================================================================= |
538 | void AIS_AngleDimension::ComputePlane() |
539 | { |
91b16a64 |
540 | if (!myIsGeometryValid) |
a6eb515f |
541 | { |
fe83e1ea |
542 | return; |
7fd59977 |
543 | } |
7fd59977 |
544 | |
4d147bf2 |
545 | // Compute working plane so that Y axis is codirectional |
546 | // with Y axis of text coordinate system (necessary for text alignment) |
547 | gp_Vec aFirstVec = gp_Vec (myCenterPoint, myFirstPoint); |
548 | gp_Vec aSecondVec = gp_Vec (myCenterPoint, mySecondPoint); |
549 | gp_Vec aDirectionN = aSecondVec ^ aFirstVec; |
550 | gp_Vec aDirectionY = aFirstVec + aSecondVec; |
551 | gp_Vec aDirectionX = aDirectionY ^ aDirectionN; |
fe83e1ea |
552 | |
60bf98ae |
553 | myPlane = gp_Pln (gp_Ax3 (myCenterPoint, gp_Dir (aDirectionN), gp_Dir (aDirectionX))); |
554 | } |
7fd59977 |
555 | |
60bf98ae |
556 | //======================================================================= |
557 | //function : GetModelUnits |
558 | //purpose : |
559 | //======================================================================= |
560 | const TCollection_AsciiString& AIS_AngleDimension::GetModelUnits() const |
561 | { |
562 | return myDrawer->DimAngleModelUnits(); |
563 | } |
fe83e1ea |
564 | |
60bf98ae |
565 | //======================================================================= |
566 | //function : GetDisplayUnits |
567 | //purpose : |
568 | //======================================================================= |
569 | const TCollection_AsciiString& AIS_AngleDimension::GetDisplayUnits() const |
570 | { |
571 | return myDrawer->DimAngleDisplayUnits(); |
572 | } |
fe83e1ea |
573 | |
60bf98ae |
574 | //======================================================================= |
575 | //function : SetModelUnits |
576 | //purpose : |
577 | //======================================================================= |
578 | void AIS_AngleDimension::SetModelUnits (const TCollection_AsciiString& theUnits) |
579 | { |
580 | myDrawer->SetDimAngleModelUnits (theUnits); |
581 | } |
fe83e1ea |
582 | |
60bf98ae |
583 | //======================================================================= |
584 | //function : SetDisplayUnits |
585 | //purpose : |
586 | //======================================================================= |
587 | void AIS_AngleDimension::SetDisplayUnits (const TCollection_AsciiString& theUnits) |
588 | { |
589 | myDrawer->SetDimAngleDisplayUnits (theUnits); |
590 | } |
591 | |
592 | //======================================================================= |
593 | //function : ComputeValue |
594 | //purpose : |
595 | //======================================================================= |
596 | Standard_Real AIS_AngleDimension::ComputeValue() const |
597 | { |
598 | if (!IsValid()) |
a6eb515f |
599 | { |
60bf98ae |
600 | return 0.0; |
7fd59977 |
601 | } |
60bf98ae |
602 | |
603 | gp_Vec aVec1 (myCenterPoint, myFirstPoint); |
604 | gp_Vec aVec2 (myCenterPoint, mySecondPoint); |
605 | |
4d147bf2 |
606 | Standard_Real anAngle = aVec1.AngleWithRef (aVec2, GetNormalForMinAngle()); |
60bf98ae |
607 | |
af203d54 |
608 | return anAngle > 0.0 ? anAngle : (2.0 * M_PI + anAngle); |
7fd59977 |
609 | } |
610 | |
7fd59977 |
611 | //======================================================================= |
a6eb515f |
612 | //function : Compute |
613 | //purpose : Having three gp_Pnt points compute presentation |
7fd59977 |
614 | //======================================================================= |
a6eb515f |
615 | void AIS_AngleDimension::Compute (const Handle(PrsMgr_PresentationManager3d)& /*thePM*/, |
616 | const Handle(Prs3d_Presentation)& thePresentation, |
617 | const Standard_Integer theMode) |
618 | { |
fe83e1ea |
619 | mySelectionGeom.Clear (theMode); |
7fd59977 |
620 | |
60bf98ae |
621 | if (!IsValid()) |
a6eb515f |
622 | { |
a6eb515f |
623 | return; |
60bf98ae |
624 | } |
7fd59977 |
625 | |
a6eb515f |
626 | // Parameters for presentation |
627 | Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect(); |
d7bffd44 |
628 | |
60bf98ae |
629 | Prs3d_Root::CurrentGroup(thePresentation)->SetPrimitivesAspect (aDimensionAspect->LineAspect()->Aspect()); |
d7bffd44 |
630 | |
a6eb515f |
631 | Quantity_Length anArrowLength = aDimensionAspect->ArrowAspect()->Length(); |
d7bffd44 |
632 | |
60bf98ae |
633 | // prepare label string and compute its geometrical width |
634 | Standard_Real aLabelWidth; |
635 | TCollection_ExtendedString aLabelString = GetValueString (aLabelWidth); |
d7bffd44 |
636 | |
fe83e1ea |
637 | // add margins to label width |
638 | if (aDimensionAspect->IsText3d()) |
639 | { |
60bf98ae |
640 | aLabelWidth += aDimensionAspect->TextAspect()->Height() * THE_3D_TEXT_MARGIN * 2.0; |
d7bffd44 |
641 | } |
642 | |
af203d54 |
643 | // Get parameters from aspect or adjust it according with custom text position |
644 | Standard_Real anExtensionSize = aDimensionAspect->ExtensionSize(); |
645 | Prs3d_DimensionTextHorizontalPosition aHorisontalTextPos = aDimensionAspect->TextHorizontalPosition(); |
7fd59977 |
646 | |
af203d54 |
647 | if (IsTextPositionCustom()) |
d7bffd44 |
648 | { |
91b16a64 |
649 | AdjustParameters (myFixedTextPosition,anExtensionSize, aHorisontalTextPos, myFlyout); |
af203d54 |
650 | } |
fe83e1ea |
651 | |
af203d54 |
652 | // Handle user-defined and automatic arrow placement |
653 | Standard_Boolean isArrowsExternal = Standard_False; |
654 | Standard_Integer aLabelPosition = LabelPosition_None; |
fe83e1ea |
655 | |
af203d54 |
656 | FitTextAlignment (aHorisontalTextPos, aLabelPosition, isArrowsExternal); |
d7bffd44 |
657 | |
af203d54 |
658 | gp_Pnt aFirstAttach = myCenterPoint.Translated (gp_Vec(myCenterPoint, myFirstPoint).Normalized() * GetFlyout()); |
659 | gp_Pnt aSecondAttach = myCenterPoint.Translated (gp_Vec(myCenterPoint, mySecondPoint).Normalized() * GetFlyout()); |
7fd59977 |
660 | |
a6eb515f |
661 | //Arrows positions and directions |
4d147bf2 |
662 | gp_Vec aWorkingPlaneDir (GetNormalForMinAngle()); |
d7bffd44 |
663 | |
4d147bf2 |
664 | gp_Dir aFirstExtensionDir = aWorkingPlaneDir.Reversed() ^ gp_Vec (myCenterPoint, aFirstAttach); |
665 | gp_Dir aSecondExtensionDir = aWorkingPlaneDir ^ gp_Vec (myCenterPoint, aSecondAttach); |
7fd59977 |
666 | |
d7bffd44 |
667 | gp_Vec aFirstArrowVec = gp_Vec (aFirstExtensionDir) * anArrowLength; |
668 | gp_Vec aSecondArrowVec = gp_Vec (aSecondExtensionDir) * anArrowLength; |
7fd59977 |
669 | |
d7bffd44 |
670 | if (isArrowsExternal) |
a6eb515f |
671 | { |
672 | aFirstArrowVec.Reverse(); |
673 | aSecondArrowVec.Reverse(); |
d7bffd44 |
674 | } |
675 | |
4d147bf2 |
676 | gp_Pnt aFirstArrowBegin (0.0, 0.0, 0.0); |
677 | gp_Pnt aFirstArrowEnd (0.0, 0.0, 0.0); |
678 | gp_Pnt aSecondArrowBegin (0.0, 0.0, 0.0); |
679 | gp_Pnt aSecondArrowEnd (0.0, 0.0, 0.0); |
680 | |
d7bffd44 |
681 | aFirstArrowBegin = aFirstAttach; |
682 | aSecondArrowBegin = aSecondAttach; |
683 | aFirstArrowEnd = aFirstAttach.Translated (-aFirstArrowVec); |
684 | aSecondArrowEnd = aSecondAttach.Translated (-aSecondArrowVec); |
685 | |
d7bffd44 |
686 | // Group1: stenciling text and the angle dimension arc |
687 | Prs3d_Root::NewGroup (thePresentation); |
688 | |
d7bffd44 |
689 | Standard_Integer aHPosition = aLabelPosition & LabelPosition_HMask; |
690 | |
691 | // draw text label |
692 | switch (aHPosition) |
b8ddfc2f |
693 | { |
d7bffd44 |
694 | case LabelPosition_HCenter : |
a6eb515f |
695 | { |
d7bffd44 |
696 | Standard_Boolean isLineBreak = aDimensionAspect->TextVerticalPosition() == Prs3d_DTVP_Center |
697 | && aDimensionAspect->IsText3d(); |
698 | |
699 | if (isLineBreak) |
700 | { |
60bf98ae |
701 | DrawArcWithText (thePresentation, |
d7bffd44 |
702 | aFirstAttach, |
703 | aSecondAttach, |
60bf98ae |
704 | myCenterPoint, |
705 | aLabelString, |
706 | aLabelWidth, |
fe83e1ea |
707 | theMode, |
d7bffd44 |
708 | aLabelPosition); |
709 | break; |
710 | } |
711 | |
fe83e1ea |
712 | // compute text primitives |
713 | if (theMode == ComputeMode_All || theMode == ComputeMode_Text) |
d7bffd44 |
714 | { |
60bf98ae |
715 | gp_Vec aDimensionDir (aFirstAttach, aSecondAttach); |
af203d54 |
716 | gp_Pnt aTextPos = IsTextPositionCustom() ? myFixedTextPosition |
717 | : GetCenterOnArc (aFirstAttach, aSecondAttach, myCenterPoint); |
60bf98ae |
718 | gp_Dir aTextDir = aDimensionDir; |
fe83e1ea |
719 | |
7c65581d |
720 | drawText (thePresentation, |
fe83e1ea |
721 | aTextPos, |
722 | aTextDir, |
60bf98ae |
723 | aLabelString, |
fe83e1ea |
724 | aLabelPosition); |
d7bffd44 |
725 | } |
726 | |
fe83e1ea |
727 | if (theMode == ComputeMode_All || theMode == ComputeMode_Line) |
728 | { |
60bf98ae |
729 | DrawArc (thePresentation, |
ee905e84 |
730 | (isArrowsExternal || !isArrowVisible(AIS_TOAV_First)) ? aFirstAttach : aFirstArrowEnd, |
731 | (isArrowsExternal || !isArrowVisible(AIS_TOAV_Second)) ? aSecondAttach : aSecondArrowEnd, |
60bf98ae |
732 | myCenterPoint, |
fe83e1ea |
733 | Abs (GetFlyout()), |
734 | theMode); |
735 | } |
a6eb515f |
736 | } |
d7bffd44 |
737 | break; |
738 | |
739 | case LabelPosition_Left : |
a6eb515f |
740 | { |
60bf98ae |
741 | DrawExtension (thePresentation, |
d7bffd44 |
742 | anExtensionSize, |
ee905e84 |
743 | (isArrowsExternal && isArrowVisible(AIS_TOAV_First)) ? aFirstArrowEnd : aFirstAttach, |
d7bffd44 |
744 | aFirstExtensionDir, |
60bf98ae |
745 | aLabelString, |
746 | aLabelWidth, |
fe83e1ea |
747 | theMode, |
d7bffd44 |
748 | aLabelPosition); |
a6eb515f |
749 | } |
d7bffd44 |
750 | break; |
751 | |
752 | case LabelPosition_Right : |
a6eb515f |
753 | { |
60bf98ae |
754 | DrawExtension (thePresentation, |
d7bffd44 |
755 | anExtensionSize, |
ee905e84 |
756 | (isArrowsExternal && isArrowVisible(AIS_TOAV_Second)) ? aSecondArrowEnd : aSecondAttach, |
d7bffd44 |
757 | aSecondExtensionDir, |
60bf98ae |
758 | aLabelString, |
759 | aLabelWidth, |
fe83e1ea |
760 | theMode, |
d7bffd44 |
761 | aLabelPosition); |
a6eb515f |
762 | } |
d7bffd44 |
763 | break; |
764 | } |
765 | |
766 | // dimension arc without text |
fe83e1ea |
767 | if ((theMode == ComputeMode_All || theMode == ComputeMode_Line) && aHPosition != LabelPosition_HCenter) |
d7bffd44 |
768 | { |
769 | Prs3d_Root::NewGroup (thePresentation); |
770 | |
60bf98ae |
771 | DrawArc (thePresentation, |
ee905e84 |
772 | (isArrowsExternal || !isArrowVisible(AIS_TOAV_First)) ? aFirstAttach : aFirstArrowEnd, |
773 | (isArrowsExternal || !isArrowVisible(AIS_TOAV_Second)) ? aSecondAttach : aSecondArrowEnd, |
60bf98ae |
774 | myCenterPoint, |
d7bffd44 |
775 | Abs(GetFlyout ()), |
fe83e1ea |
776 | theMode); |
d7bffd44 |
777 | } |
7fd59977 |
778 | |
d7bffd44 |
779 | // arrows and arrow extensions |
fe83e1ea |
780 | if (theMode == ComputeMode_All || theMode == ComputeMode_Line) |
d7bffd44 |
781 | { |
782 | Prs3d_Root::NewGroup (thePresentation); |
783 | |
ee905e84 |
784 | if (isArrowVisible(AIS_TOAV_First)) |
785 | DrawArrow (thePresentation, aFirstArrowBegin, gp_Dir (aFirstArrowVec)); |
786 | if (isArrowVisible(AIS_TOAV_Second)) |
787 | DrawArrow (thePresentation, aSecondArrowBegin, gp_Dir (aSecondArrowVec)); |
d7bffd44 |
788 | } |
789 | |
fe83e1ea |
790 | if ((theMode == ComputeMode_All || theMode == ComputeMode_Line) && isArrowsExternal) |
d7bffd44 |
791 | { |
792 | Prs3d_Root::NewGroup (thePresentation); |
793 | |
ee905e84 |
794 | if (aHPosition != LabelPosition_Left && isArrowVisible(AIS_TOAV_First)) |
d7bffd44 |
795 | { |
60bf98ae |
796 | DrawExtension (thePresentation, |
af203d54 |
797 | aDimensionAspect->ArrowTailSize(), |
d7bffd44 |
798 | aFirstArrowEnd, |
799 | aFirstExtensionDir, |
fe83e1ea |
800 | THE_EMPTY_LABEL_STRING, |
801 | THE_EMPTY_LABEL_WIDTH, |
802 | theMode, |
d7bffd44 |
803 | LabelPosition_None); |
804 | } |
805 | |
ee905e84 |
806 | if (aHPosition != LabelPosition_Right && isArrowVisible(AIS_TOAV_Second)) |
a6eb515f |
807 | { |
60bf98ae |
808 | DrawExtension (thePresentation, |
af203d54 |
809 | aDimensionAspect->ArrowTailSize(), |
d7bffd44 |
810 | aSecondArrowEnd, |
811 | aSecondExtensionDir, |
fe83e1ea |
812 | THE_EMPTY_LABEL_STRING, |
813 | THE_EMPTY_LABEL_WIDTH, |
814 | theMode, |
d7bffd44 |
815 | LabelPosition_None); |
a6eb515f |
816 | } |
817 | } |
7fd59977 |
818 | |
d7bffd44 |
819 | // flyouts |
60bf98ae |
820 | if (theMode == ComputeMode_All) |
a6eb515f |
821 | { |
d7bffd44 |
822 | Prs3d_Root::NewGroup (thePresentation); |
823 | |
824 | Handle(Graphic3d_ArrayOfSegments) aPrimSegments = new Graphic3d_ArrayOfSegments (4); |
60bf98ae |
825 | aPrimSegments->AddVertex (myCenterPoint); |
a6eb515f |
826 | aPrimSegments->AddVertex (aFirstAttach); |
60bf98ae |
827 | aPrimSegments->AddVertex (myCenterPoint); |
a6eb515f |
828 | aPrimSegments->AddVertex (aSecondAttach); |
d7bffd44 |
829 | |
830 | Handle(Graphic3d_AspectLine3d) aFlyoutStyle = myDrawer->DimensionAspect()->LineAspect()->Aspect(); |
831 | Prs3d_Root::CurrentGroup (thePresentation)->SetPrimitivesAspect (aFlyoutStyle); |
a6eb515f |
832 | Prs3d_Root::CurrentGroup (thePresentation)->AddPrimitiveArray (aPrimSegments); |
7fd59977 |
833 | } |
834 | |
91b16a64 |
835 | mySelectionGeom.IsComputed = Standard_True; |
7fd59977 |
836 | } |
62b6361a |
837 | |
838 | //======================================================================= |
60bf98ae |
839 | //function : ComputeFlyoutSelection |
62b6361a |
840 | //purpose : computes selection for flyouts |
841 | //======================================================================= |
60bf98ae |
842 | void AIS_AngleDimension::ComputeFlyoutSelection (const Handle(SelectMgr_Selection)& theSelection, |
fe83e1ea |
843 | const Handle(SelectMgr_EntityOwner)& theOwner) |
62b6361a |
844 | { |
60bf98ae |
845 | gp_Pnt aFirstAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, myFirstPoint).Normalized() * GetFlyout()); |
846 | gp_Pnt aSecondAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, mySecondPoint).Normalized() * GetFlyout()); |
847 | |
848 | Handle(Select3D_SensitiveGroup) aSensitiveEntity = new Select3D_SensitiveGroup (theOwner); |
849 | aSensitiveEntity->Add (new Select3D_SensitiveSegment (theOwner, myCenterPoint, aFirstAttach)); |
850 | aSensitiveEntity->Add (new Select3D_SensitiveSegment (theOwner, myCenterPoint, aSecondAttach)); |
851 | |
852 | theSelection->Add (aSensitiveEntity); |
853 | } |
854 | |
855 | //======================================================================= |
856 | //function : InitTwoEdgesAngle |
857 | //purpose : |
858 | //======================================================================= |
859 | Standard_Boolean AIS_AngleDimension::InitTwoEdgesAngle (gp_Pln& theComputedPlane) |
860 | { |
861 | TopoDS_Edge aFirstEdge = TopoDS::Edge (myFirstShape); |
862 | TopoDS_Edge aSecondEdge = TopoDS::Edge (mySecondShape); |
863 | |
864 | BRepAdaptor_Curve aMakeFirstLine (aFirstEdge); |
865 | BRepAdaptor_Curve aMakeSecondLine (aSecondEdge); |
866 | |
867 | if (aMakeFirstLine.GetType() != GeomAbs_Line || aMakeSecondLine.GetType() != GeomAbs_Line) |
fe83e1ea |
868 | { |
60bf98ae |
869 | return Standard_False; |
fe83e1ea |
870 | } |
871 | |
60bf98ae |
872 | Handle(Geom_Line) aFirstLine = new Geom_Line (aMakeFirstLine.Line()); |
873 | Handle(Geom_Line) aSecondLine = new Geom_Line (aMakeSecondLine.Line()); |
fe83e1ea |
874 | |
60bf98ae |
875 | gp_Lin aFirstLin = aFirstLine->Lin(); |
876 | gp_Lin aSecondLin = aSecondLine->Lin(); |
fe83e1ea |
877 | |
4d147bf2 |
878 | Standard_Boolean isParallelLines = aFirstLin.Direction().IsParallel (aSecondLin.Direction(), Precision::Angular()); |
60bf98ae |
879 | |
4d147bf2 |
880 | theComputedPlane = isParallelLines ? gp_Pln(gp::XOY()) |
881 | : gp_Pln (aSecondLin.Location(), gp_Vec (aFirstLin.Direction()) ^ gp_Vec (aSecondLin.Direction())); |
60bf98ae |
882 | |
4d147bf2 |
883 | // Compute geometry for this plane and edges |
60bf98ae |
884 | Standard_Boolean isInfinite1,isInfinite2; |
885 | gp_Pnt aFirstPoint1, aLastPoint1, aFirstPoint2, aLastPoint2; |
aa00364d |
886 | Handle(Geom_Curve) aFirstCurve = aFirstLine, aSecondCurve = aSecondLine; |
60bf98ae |
887 | if (!AIS::ComputeGeometry (aFirstEdge, aSecondEdge, |
aa00364d |
888 | aFirstCurve, aSecondCurve, |
60bf98ae |
889 | aFirstPoint1, aLastPoint1, |
890 | aFirstPoint2, aLastPoint2, |
891 | isInfinite1, isInfinite2)) |
892 | { |
893 | return Standard_False; |
894 | } |
895 | |
4d147bf2 |
896 | Standard_Boolean isSameLines = aFirstLin.Direction().IsEqual (aSecondLin.Direction(), Precision::Angular()) |
897 | && aFirstLin.Location().IsEqual (aSecondLin.Location(),Precision::Confusion()); |
898 | |
899 | // It can be the same gp_Lin geometry but the different begin and end parameters |
900 | Standard_Boolean isSameEdges = |
901 | (aFirstPoint1.IsEqual (aFirstPoint2, Precision::Confusion()) && aLastPoint1.IsEqual (aLastPoint2, Precision::Confusion())) |
902 | || (aFirstPoint1.IsEqual (aLastPoint2, Precision::Confusion()) && aLastPoint1.IsEqual (aFirstPoint2, Precision::Confusion())); |
60bf98ae |
903 | |
4d147bf2 |
904 | if (isParallelLines) |
905 | { |
906 | // Zero angle, it could not handle this geometry |
907 | if (isSameLines && isSameEdges) |
60bf98ae |
908 | { |
4d147bf2 |
909 | return Standard_False; |
60bf98ae |
910 | } |
911 | |
4d147bf2 |
912 | // Handle the case of Pi angle |
913 | const Standard_Real aParam11 = ElCLib::Parameter (aFirstLin, aFirstPoint1); |
914 | const Standard_Real aParam12 = ElCLib::Parameter (aFirstLin, aLastPoint1); |
915 | const Standard_Real aParam21 = ElCLib::Parameter (aFirstLin, aFirstPoint2); |
916 | const Standard_Real aParam22 = ElCLib::Parameter (aFirstLin, aLastPoint2); |
917 | myCenterPoint = ElCLib::Value ( (Min (aParam11, aParam12) + Max (aParam21, aParam22)) * 0.5, aFirstLin); |
918 | myFirstPoint = myCenterPoint.Translated (gp_Vec (aFirstLin.Direction()) * Abs (GetFlyout())); |
919 | mySecondPoint = myCenterPoint.XYZ() + (aFirstLin.Direction().IsEqual (aSecondLin.Direction(), Precision::Angular()) |
920 | ? aFirstLin.Direction().Reversed().XYZ() * Abs (GetFlyout()) |
921 | : aSecondLin.Direction().XYZ() * Abs (GetFlyout())); |
60bf98ae |
922 | } |
923 | else |
924 | { |
925 | // Find intersection |
926 | gp_Lin2d aFirstLin2d = ProjLib::Project (theComputedPlane, aFirstLin); |
927 | gp_Lin2d aSecondLin2d = ProjLib::Project (theComputedPlane, aSecondLin); |
928 | |
929 | IntAna2d_AnaIntersection anInt2d (aFirstLin2d, aSecondLin2d); |
930 | gp_Pnt2d anIntersectPoint; |
931 | if (!anInt2d.IsDone() || anInt2d.IsEmpty()) |
932 | { |
933 | return Standard_False; |
934 | } |
935 | |
936 | anIntersectPoint = gp_Pnt2d (anInt2d.Point(1).Value()); |
937 | myCenterPoint = ElCLib::To3d (theComputedPlane.Position().Ax2(), anIntersectPoint); |
938 | |
939 | if (isInfinite1 || isInfinite2) |
940 | { |
941 | myFirstPoint = myCenterPoint.Translated (gp_Vec (aFirstLin.Direction()) * Abs (GetFlyout())); |
942 | mySecondPoint = myCenterPoint.Translated (gp_Vec (aSecondLin.Direction()) * Abs (GetFlyout())); |
943 | |
944 | return IsValidPoints (myFirstPoint, myCenterPoint, mySecondPoint); |
945 | } |
946 | |
947 | // | |
948 | // | <- dimension should be here |
949 | // *---- |
950 | myFirstPoint = myCenterPoint.Distance (aFirstPoint1) > myCenterPoint.Distance (aLastPoint1) |
951 | ? aFirstPoint1 |
952 | : aLastPoint1; |
953 | |
954 | mySecondPoint = myCenterPoint.Distance (aFirstPoint2) > myCenterPoint.Distance (aLastPoint2) |
955 | ? aFirstPoint2 |
956 | : aLastPoint2; |
957 | } |
958 | |
959 | return IsValidPoints (myFirstPoint, myCenterPoint, mySecondPoint); |
960 | } |
961 | |
962 | //======================================================================= |
963 | //function : InitTwoFacesAngle |
964 | //purpose : initialization of angle dimension between two faces |
965 | //======================================================================= |
966 | Standard_Boolean AIS_AngleDimension::InitTwoFacesAngle() |
967 | { |
968 | TopoDS_Face aFirstFace = TopoDS::Face (myFirstShape); |
969 | TopoDS_Face aSecondFace = TopoDS::Face (mySecondShape); |
970 | |
971 | gp_Dir aFirstDir, aSecondDir; |
51740958 |
972 | gp_Pln aFirstPln, aSecondPln; |
60bf98ae |
973 | Handle(Geom_Surface) aFirstBasisSurf, aSecondBasisSurf; |
974 | AIS_KindOfSurface aFirstSurfType, aSecondSurfType; |
975 | Standard_Real aFirstOffset, aSecondOffset; |
976 | |
51740958 |
977 | AIS::GetPlaneFromFace (aFirstFace, aFirstPln, |
60bf98ae |
978 | aFirstBasisSurf,aFirstSurfType,aFirstOffset); |
979 | |
51740958 |
980 | AIS::GetPlaneFromFace (aSecondFace, aSecondPln, |
60bf98ae |
981 | aSecondBasisSurf, aSecondSurfType, aSecondOffset); |
982 | |
983 | if (aFirstSurfType == AIS_KOS_Plane && aSecondSurfType == AIS_KOS_Plane) |
984 | { |
985 | //Planar faces angle |
986 | Handle(Geom_Plane) aFirstPlane = Handle(Geom_Plane)::DownCast (aFirstBasisSurf); |
987 | Handle(Geom_Plane) aSecondPlane = Handle(Geom_Plane)::DownCast (aSecondBasisSurf); |
988 | return AIS::InitAngleBetweenPlanarFaces (aFirstFace, |
989 | aSecondFace, |
990 | myCenterPoint, |
991 | myFirstPoint, |
992 | mySecondPoint) |
993 | && IsValidPoints (myFirstPoint, |
994 | myCenterPoint, |
995 | mySecondPoint); |
996 | } |
997 | else |
998 | { |
999 | // Curvilinear faces angle |
1000 | return AIS::InitAngleBetweenCurvilinearFaces (aFirstFace, |
1001 | aSecondFace, |
1002 | aFirstSurfType, |
1003 | aSecondSurfType, |
1004 | myCenterPoint, |
1005 | myFirstPoint, |
1006 | mySecondPoint) |
1007 | && IsValidPoints (myFirstPoint, |
1008 | myCenterPoint, |
1009 | mySecondPoint); |
1010 | } |
1011 | } |
1012 | |
1013 | //======================================================================= |
1014 | //function : InitTwoFacesAngle |
1015 | //purpose : initialization of angle dimension between two faces |
1016 | //======================================================================= |
1017 | Standard_Boolean AIS_AngleDimension::InitTwoFacesAngle (const gp_Pnt thePointOnFirstFace) |
1018 | { |
1019 | TopoDS_Face aFirstFace = TopoDS::Face (myFirstShape); |
1020 | TopoDS_Face aSecondFace = TopoDS::Face (mySecondShape); |
1021 | |
1022 | gp_Dir aFirstDir, aSecondDir; |
51740958 |
1023 | gp_Pln aFirstPln, aSecondPln; |
60bf98ae |
1024 | Handle(Geom_Surface) aFirstBasisSurf, aSecondBasisSurf; |
1025 | AIS_KindOfSurface aFirstSurfType, aSecondSurfType; |
1026 | Standard_Real aFirstOffset, aSecondOffset; |
1027 | |
51740958 |
1028 | AIS::GetPlaneFromFace (aFirstFace, aFirstPln, |
60bf98ae |
1029 | aFirstBasisSurf,aFirstSurfType,aFirstOffset); |
1030 | |
51740958 |
1031 | AIS::GetPlaneFromFace (aSecondFace, aSecondPln, |
60bf98ae |
1032 | aSecondBasisSurf, aSecondSurfType, aSecondOffset); |
1033 | |
1034 | myFirstPoint = thePointOnFirstFace; |
1035 | if (aFirstSurfType == AIS_KOS_Plane && aSecondSurfType == AIS_KOS_Plane) |
1036 | { |
1037 | //Planar faces angle |
1038 | Handle(Geom_Plane) aFirstPlane = Handle(Geom_Plane)::DownCast (aFirstBasisSurf); |
1039 | Handle(Geom_Plane) aSecondPlane = Handle(Geom_Plane)::DownCast (aSecondBasisSurf); |
1040 | return AIS::InitAngleBetweenPlanarFaces (aFirstFace, |
1041 | aSecondFace, |
1042 | myCenterPoint, |
1043 | myFirstPoint, |
1044 | mySecondPoint, |
1045 | Standard_True) |
1046 | && IsValidPoints (myFirstPoint, |
1047 | myCenterPoint, |
1048 | mySecondPoint); |
1049 | } |
1050 | else |
1051 | { |
1052 | // Curvilinear faces angle |
1053 | return AIS::InitAngleBetweenCurvilinearFaces (aFirstFace, |
1054 | aSecondFace, |
1055 | aFirstSurfType, |
1056 | aSecondSurfType, |
1057 | myCenterPoint, |
1058 | myFirstPoint, |
1059 | mySecondPoint, |
1060 | Standard_True) |
1061 | && IsValidPoints (myFirstPoint, |
1062 | myCenterPoint, |
1063 | mySecondPoint); |
1064 | } |
1065 | } |
1066 | |
1067 | //======================================================================= |
1068 | //function : InitConeAngle |
1069 | //purpose : initialization of the cone angle |
1070 | //======================================================================= |
1071 | Standard_Boolean AIS_AngleDimension::InitConeAngle() |
1072 | { |
1073 | if (myFirstShape.IsNull()) |
1074 | { |
1075 | return Standard_False; |
1076 | } |
1077 | |
1078 | TopoDS_Face aConeShape = TopoDS::Face (myFirstShape); |
1079 | gp_Pln aPln; |
1080 | gp_Cone aCone; |
1081 | gp_Circ aCircle; |
1082 | // A surface from the Face |
1083 | Handle(Geom_Surface) aSurf; |
1084 | Handle(Geom_OffsetSurface) aOffsetSurf; |
1085 | Handle(Geom_ConicalSurface) aConicalSurf; |
1086 | Handle(Geom_SurfaceOfRevolution) aRevSurf; |
1087 | Handle(Geom_Line) aLine; |
1088 | BRepAdaptor_Surface aConeAdaptor (aConeShape); |
1089 | TopoDS_Face aFace; |
1090 | AIS_KindOfSurface aSurfType; |
1091 | Standard_Real anOffset = 0.; |
1092 | Handle(Standard_Type) aType; |
1093 | |
1094 | Standard_Real aMaxV = aConeAdaptor.FirstVParameter(); |
1095 | Standard_Real aMinV = aConeAdaptor.LastVParameter(); |
1096 | |
1097 | AIS::GetPlaneFromFace (aConeShape, aPln, aSurf, aSurfType, anOffset); |
1098 | |
1099 | if (aSurfType == AIS_KOS_Revolution) |
1100 | { |
1101 | // Surface of revolution |
1102 | aRevSurf = Handle(Geom_SurfaceOfRevolution)::DownCast(aSurf); |
1103 | gp_Lin aLin (aRevSurf->Axis()); |
1104 | Handle(Geom_Curve) aBasisCurve = aRevSurf->BasisCurve(); |
1105 | //Must be a part of line (basis curve should be linear) |
1106 | if (aBasisCurve ->DynamicType() != STANDARD_TYPE(Geom_Line)) |
1107 | return Standard_False; |
1108 | |
1109 | gp_Pnt aFirst1 = aConeAdaptor.Value (0., aMinV); |
1110 | gp_Pnt aLast1 = aConeAdaptor.Value (0., aMaxV); |
1111 | gp_Vec aVec1 (aFirst1, aLast1); |
1112 | |
1113 | //Projection <aFirst> on <aLin> |
1114 | gp_Pnt aFirst2 = ElCLib::Value (ElCLib::Parameter (aLin, aFirst1), aLin); |
1115 | // Projection <aLast> on <aLin> |
1116 | gp_Pnt aLast2 = ElCLib::Value (ElCLib::Parameter (aLin, aLast1), aLin); |
1117 | |
1118 | gp_Vec aVec2 (aFirst2, aLast2); |
1119 | |
1120 | // Check if two parts of revolution are parallel (it's a cylinder) or normal (it's a circle). |
1121 | if (aVec1.IsParallel (aVec2, Precision::Angular()) |
1122 | || aVec1.IsNormal (aVec2,Precision::Angular())) |
1123 | return Standard_False; |
1124 | |
1125 | gce_MakeCone aMkCone (aRevSurf->Axis(), aFirst1, aLast1); |
1126 | aCone = aMkCone.Value(); |
1127 | myCenterPoint = aCone.Apex(); |
1128 | } |
1129 | else |
1130 | { |
1131 | aType = aSurf->DynamicType(); |
1132 | if (aType == STANDARD_TYPE(Geom_OffsetSurface) || anOffset > 0.01) |
1133 | { |
1134 | // Offset surface |
1135 | aOffsetSurf = new Geom_OffsetSurface (aSurf, anOffset); |
1136 | aSurf = aOffsetSurf->Surface(); |
1137 | BRepBuilderAPI_MakeFace aMkFace(aSurf, Precision::Confusion()); |
1138 | aMkFace.Build(); |
1139 | if (!aMkFace.IsDone()) |
1140 | return Standard_False; |
1141 | aConeAdaptor.Initialize (aMkFace.Face()); |
1142 | } |
1143 | aCone = aConeAdaptor.Cone(); |
1144 | aConicalSurf = Handle(Geom_ConicalSurface)::DownCast (aSurf); |
1145 | myCenterPoint = aConicalSurf->Apex(); |
1146 | } |
1147 | |
1148 | // A circle where the angle is drawn |
1149 | Handle(Geom_Curve) aCurve; |
1150 | Standard_Real aMidV = ( aMinV + aMaxV ) / 2.5; |
1151 | aCurve = aSurf->VIso (aMidV); |
1152 | aCircle = Handle(Geom_Circle)::DownCast (aCurve)->Circ(); |
1153 | |
1154 | aCurve = aSurf->VIso(aMaxV); |
1155 | gp_Circ aCircVmax = Handle(Geom_Circle)::DownCast(aCurve)->Circ(); |
1156 | aCurve = aSurf->VIso(aMinV); |
1157 | gp_Circ aCircVmin = Handle(Geom_Circle)::DownCast(aCurve)->Circ(); |
1158 | |
1159 | if (aCircVmax.Radius() < aCircVmin.Radius()) |
1160 | { |
1161 | gp_Circ aTmpCirc = aCircVmax; |
1162 | aCircVmax = aCircVmin; |
1163 | aCircVmin = aTmpCirc; |
1164 | } |
1165 | |
1166 | myFirstPoint = ElCLib::Value (0, aCircle); |
1167 | mySecondPoint = ElCLib::Value (M_PI, aCircle); |
1168 | return Standard_True; |
1169 | } |
1170 | |
1171 | //======================================================================= |
1172 | //function : IsValidPoints |
1173 | //purpose : |
1174 | //======================================================================= |
1175 | Standard_Boolean AIS_AngleDimension::IsValidPoints (const gp_Pnt& theFirstPoint, |
1176 | const gp_Pnt& theCenterPoint, |
1177 | const gp_Pnt& theSecondPoint) const |
1178 | { |
1179 | return theFirstPoint.Distance (theCenterPoint) > Precision::Confusion() |
1180 | && theSecondPoint.Distance (theCenterPoint) > Precision::Confusion() |
1181 | && gp_Vec (theCenterPoint, theFirstPoint).Angle ( |
1182 | gp_Vec (theCenterPoint, theSecondPoint)) > Precision::Angular(); |
d7bffd44 |
1183 | } |
af203d54 |
1184 | |
ee905e84 |
1185 | //======================================================================= |
1186 | //function : isArrowVisible |
1187 | //purpose : compares given and internal arrows types, returns true if the the type should be shown |
1188 | //======================================================================= |
1189 | Standard_Boolean AIS_AngleDimension::isArrowVisible(const AIS_TypeOfAngleArrowVisibility& theArrowType) const |
1190 | { |
1191 | switch (theArrowType) |
1192 | { |
1193 | case AIS_TOAV_Both: |
1194 | return myArrowsVisibility == AIS_TOAV_Both; |
1195 | case AIS_TOAV_First: |
1196 | return myArrowsVisibility == AIS_TOAV_Both || myArrowsVisibility == AIS_TOAV_First; |
1197 | case AIS_TOAV_Second: |
1198 | return myArrowsVisibility == AIS_TOAV_Both || myArrowsVisibility == AIS_TOAV_Second; |
1199 | case AIS_TOAV_None: |
1200 | return false; |
1201 | } |
1202 | return false; |
1203 | } |
1204 | |
af203d54 |
1205 | //======================================================================= |
1206 | //function : GetTextPosition |
1207 | //purpose : |
1208 | //======================================================================= |
1209 | const gp_Pnt AIS_AngleDimension::GetTextPosition() const |
1210 | { |
1211 | if (!IsValid()) |
1212 | { |
1213 | return gp::Origin(); |
1214 | } |
1215 | |
1216 | if (IsTextPositionCustom()) |
1217 | { |
1218 | return myFixedTextPosition; |
1219 | } |
1220 | |
1221 | // Counts text position according to the dimension parameters |
1222 | gp_Pnt aTextPosition (gp::Origin()); |
1223 | |
1224 | Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect(); |
1225 | |
1226 | // Prepare label string and compute its geometrical width |
1227 | Standard_Real aLabelWidth; |
1228 | TCollection_ExtendedString aLabelString = GetValueString (aLabelWidth); |
1229 | |
1230 | gp_Pnt aFirstAttach = myCenterPoint.Translated (gp_Vec(myCenterPoint, myFirstPoint).Normalized() * GetFlyout()); |
1231 | gp_Pnt aSecondAttach = myCenterPoint.Translated (gp_Vec(myCenterPoint, mySecondPoint).Normalized() * GetFlyout()); |
1232 | |
1233 | // Handle user-defined and automatic arrow placement |
1234 | Standard_Boolean isArrowsExternal = Standard_False; |
1235 | Standard_Integer aLabelPosition = LabelPosition_None; |
1236 | FitTextAlignment (aDimensionAspect->TextHorizontalPosition(), |
1237 | aLabelPosition, isArrowsExternal); |
1238 | |
1239 | // Get text position |
1240 | switch (aLabelPosition & LabelPosition_HMask) |
1241 | { |
1242 | case LabelPosition_HCenter: |
1243 | { |
1244 | aTextPosition = GetCenterOnArc (aFirstAttach, aSecondAttach, myCenterPoint); |
1245 | } |
1246 | break; |
1247 | case LabelPosition_Left: |
1248 | { |
1249 | gp_Dir aPlaneNormal = gp_Vec (aFirstAttach, aSecondAttach) ^ gp_Vec (myCenterPoint, aFirstAttach); |
1250 | gp_Dir anExtensionDir = aPlaneNormal ^ gp_Vec (myCenterPoint, aFirstAttach); |
1251 | Standard_Real anExtensionSize = aDimensionAspect->ExtensionSize(); |
1252 | Standard_Real anOffset = isArrowsExternal |
1253 | ? anExtensionSize + aDimensionAspect->ArrowAspect()->Length() |
1254 | : anExtensionSize; |
1255 | gp_Vec anExtensionVec = gp_Vec (anExtensionDir) * -anOffset; |
1256 | aTextPosition = aFirstAttach.Translated (anExtensionVec); |
1257 | } |
1258 | break; |
1259 | case LabelPosition_Right: |
1260 | { |
1261 | gp_Dir aPlaneNormal = gp_Vec (aFirstAttach, aSecondAttach) ^ gp_Vec (myCenterPoint, aFirstAttach); |
1262 | gp_Dir anExtensionDir = aPlaneNormal ^ gp_Vec (myCenterPoint, aSecondAttach); |
1263 | Standard_Real anExtensionSize = aDimensionAspect->ExtensionSize(); |
1264 | Standard_Real anOffset = isArrowsExternal |
1265 | ? anExtensionSize + aDimensionAspect->ArrowAspect()->Length() |
1266 | : anExtensionSize; |
1267 | gp_Vec anExtensionVec = gp_Vec (anExtensionDir) * anOffset; |
1268 | aTextPosition = aSecondAttach.Translated (anExtensionVec); |
1269 | } |
1270 | break; |
1271 | } |
1272 | |
1273 | return aTextPosition; |
1274 | } |
1275 | |
1276 | //======================================================================= |
1277 | //function : SetTextPosition |
1278 | //purpose : |
1279 | //======================================================================= |
1280 | void AIS_AngleDimension::SetTextPosition (const gp_Pnt& theTextPos) |
1281 | { |
1282 | if (!IsValid()) |
1283 | { |
1284 | return; |
1285 | } |
1286 | |
1287 | // The text position point for angle dimension should belong to the working plane. |
1288 | if (!GetPlane().Contains (theTextPos, Precision::Confusion())) |
1289 | { |
1290 | Standard_ProgramError::Raise ("The text position point for angle dimension doesn't belong to the working plane."); |
1291 | } |
1292 | |
1293 | myIsTextPositionFixed = Standard_True; |
1294 | myFixedTextPosition = theTextPos; |
1295 | } |
1296 | |
1297 | //======================================================================= |
91b16a64 |
1298 | //function : AdjustParameters |
af203d54 |
1299 | //purpose : |
1300 | //======================================================================= |
1301 | void AIS_AngleDimension::AdjustParameters (const gp_Pnt& theTextPos, |
1302 | Standard_Real& theExtensionSize, |
91b16a64 |
1303 | Prs3d_DimensionTextHorizontalPosition& theAlignment, |
1304 | Standard_Real& theFlyout) const |
af203d54 |
1305 | { |
1306 | Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect(); |
1307 | Standard_Real anArrowLength = aDimensionAspect->ArrowAspect()->Length(); |
1308 | |
af203d54 |
1309 | // Build circle with radius that is equal to distance from text position to the center point. |
1310 | Standard_Real aRadius = gp_Vec (myCenterPoint, theTextPos).Magnitude(); |
1311 | |
1312 | // Set attach points in positive direction of the flyout. |
1313 | gp_Pnt aFirstAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, myFirstPoint).Normalized() * aRadius); |
1314 | gp_Pnt aSecondAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, mySecondPoint).Normalized() * aRadius); |
1315 | |
1316 | gce_MakeCirc aConstructCircle (myCenterPoint, GetPlane(), aRadius); |
1317 | if (!aConstructCircle.IsDone()) |
1318 | { |
1319 | return; |
1320 | } |
1321 | gp_Circ aCircle = aConstructCircle.Value(); |
1322 | |
1323 | // Default values |
1324 | theExtensionSize = aDimensionAspect->ArrowAspect()->Length(); |
1325 | theAlignment = Prs3d_DTHP_Center; |
1326 | |
1327 | Standard_Real aParamBeg = ElCLib::Parameter (aCircle, aFirstAttach); |
1328 | Standard_Real aParamEnd = ElCLib::Parameter (aCircle, aSecondAttach); |
1329 | if (aParamEnd < aParamBeg) |
1330 | { |
1331 | Standard_Real aParam = aParamEnd; |
1332 | aParamEnd = aParamBeg; |
1333 | aParamBeg = aParam; |
1334 | } |
1335 | |
1336 | ElCLib::AdjustPeriodic (0.0, M_PI * 2, Precision::PConfusion(), aParamBeg, aParamEnd); |
1337 | Standard_Real aTextPar = ElCLib::Parameter (aCircle , theTextPos); |
1338 | |
1339 | // Horizontal center |
1340 | if (aTextPar > aParamBeg && aTextPar < aParamEnd) |
1341 | { |
91b16a64 |
1342 | theFlyout = aRadius; |
af203d54 |
1343 | return; |
1344 | } |
1345 | |
1346 | aParamBeg += M_PI; |
1347 | aParamEnd += M_PI; |
1348 | ElCLib::AdjustPeriodic (0.0, M_PI * 2, Precision::PConfusion(), aParamBeg, aParamEnd); |
1349 | |
1350 | if (aTextPar > aParamBeg && aTextPar < aParamEnd) |
1351 | { |
91b16a64 |
1352 | theFlyout = -aRadius; |
af203d54 |
1353 | return; |
1354 | } |
1355 | |
1356 | // Text on the extensions |
1357 | gp_Lin aFirstLine = gce_MakeLin (myCenterPoint, myFirstPoint); |
1358 | gp_Lin aSecondLine = gce_MakeLin (myCenterPoint, mySecondPoint); |
1359 | gp_Pnt aFirstTextProj = AIS::Nearest (aFirstLine, theTextPos); |
1360 | gp_Pnt aSecondTextProj = AIS::Nearest (aSecondLine, theTextPos); |
1361 | Standard_Real aFirstDist = aFirstTextProj.Distance (theTextPos); |
1362 | Standard_Real aSecondDist = aSecondTextProj.Distance (theTextPos); |
1363 | |
1364 | if (aFirstDist <= aSecondDist) |
1365 | { |
1366 | aRadius = myCenterPoint.Distance (aFirstTextProj); |
1367 | Standard_Real aNewExtensionSize = aFirstDist - anArrowLength; |
1368 | theExtensionSize = aNewExtensionSize < 0.0 ? 0.0 : aNewExtensionSize; |
1369 | |
1370 | theAlignment = Prs3d_DTHP_Left; |
1371 | |
1372 | gp_Vec aPosFlyoutDir = gp_Vec (myCenterPoint, myFirstPoint).Normalized().Scaled (aRadius); |
1373 | |
91b16a64 |
1374 | theFlyout = aFirstTextProj.Distance (myCenterPoint.Translated (aPosFlyoutDir)) > Precision::Confusion() |
af203d54 |
1375 | ? -aRadius : aRadius; |
1376 | } |
1377 | else |
1378 | { |
1379 | aRadius = myCenterPoint.Distance (aSecondTextProj); |
1380 | |
1381 | Standard_Real aNewExtensionSize = aSecondDist - anArrowLength; |
1382 | |
1383 | theExtensionSize = aNewExtensionSize < 0.0 ? 0.0 : aNewExtensionSize; |
1384 | |
1385 | theAlignment = Prs3d_DTHP_Right; |
1386 | |
1387 | gp_Vec aPosFlyoutDir = gp_Vec (myCenterPoint, mySecondPoint).Normalized().Scaled (aRadius); |
1388 | |
91b16a64 |
1389 | theFlyout = aSecondTextProj.Distance (myCenterPoint.Translated (aPosFlyoutDir)) > Precision::Confusion() |
af203d54 |
1390 | ? -aRadius : aRadius; |
1391 | } |
1392 | } |
1393 | |
1394 | //======================================================================= |
1395 | //function : FitTextAlignment |
1396 | //purpose : |
1397 | //======================================================================= |
1398 | void AIS_AngleDimension::FitTextAlignment (const Prs3d_DimensionTextHorizontalPosition& theHorizontalTextPos, |
1399 | Standard_Integer& theLabelPosition, |
1400 | Standard_Boolean& theIsArrowsExternal) const |
1401 | { |
1402 | Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect(); |
1403 | |
1404 | Quantity_Length anArrowLength = aDimensionAspect->ArrowAspect()->Length(); |
1405 | |
1406 | // Prepare label string and compute its geometrical width |
1407 | Standard_Real aLabelWidth; |
1408 | TCollection_ExtendedString aLabelString = GetValueString (aLabelWidth); |
1409 | |
1410 | // add margins to label width |
1411 | if (aDimensionAspect->IsText3d()) |
1412 | { |
1413 | aLabelWidth += aDimensionAspect->TextAspect()->Height() * THE_3D_TEXT_MARGIN * 2.0; |
1414 | } |
1415 | |
1416 | gp_Pnt aFirstAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, myFirstPoint).Normalized() * GetFlyout()); |
1417 | gp_Pnt aSecondAttach = myCenterPoint.Translated (gp_Vec (myCenterPoint, mySecondPoint).Normalized() * GetFlyout()); |
1418 | |
1419 | // Handle user-defined and automatic arrow placement |
1420 | switch (aDimensionAspect->ArrowOrientation()) |
1421 | { |
1422 | case Prs3d_DAO_External: theIsArrowsExternal = true; break; |
1423 | case Prs3d_DAO_Internal: theIsArrowsExternal = false; break; |
1424 | case Prs3d_DAO_Fit: |
1425 | { |
1426 | gp_Vec anAttachVector (aFirstAttach, aSecondAttach); |
1427 | Standard_Real aDimensionWidth = anAttachVector.Magnitude(); |
1428 | |
1429 | // Add margin to ensure a small tail between text and arrow |
1430 | Standard_Real anArrowMargin = aDimensionAspect->IsText3d() |
1431 | ? aDimensionAspect->TextAspect()->Height() * THE_3D_TEXT_MARGIN |
1432 | : 0.0; |
1433 | |
1434 | Standard_Real anArrowsWidth = (anArrowLength + anArrowMargin) * 2.0; |
1435 | |
1436 | theIsArrowsExternal = aDimensionWidth < aLabelWidth + anArrowsWidth; |
1437 | break; |
1438 | } |
1439 | } |
1440 | |
1441 | // Handle user-defined and automatic text placement |
1442 | switch (theHorizontalTextPos) |
1443 | { |
1444 | case Prs3d_DTHP_Left : theLabelPosition |= LabelPosition_Left; break; |
1445 | case Prs3d_DTHP_Right : theLabelPosition |= LabelPosition_Right; break; |
1446 | case Prs3d_DTHP_Center: theLabelPosition |= LabelPosition_HCenter; break; |
1447 | case Prs3d_DTHP_Fit: |
1448 | { |
1449 | gp_Vec anAttachVector (aFirstAttach, aSecondAttach); |
1450 | Standard_Real aDimensionWidth = anAttachVector.Magnitude(); |
1451 | Standard_Real anArrowsWidth = anArrowLength * 2.0; |
1452 | Standard_Real aContentWidth = theIsArrowsExternal ? aLabelWidth : aLabelWidth + anArrowsWidth; |
1453 | |
1454 | theLabelPosition |= aDimensionWidth < aContentWidth ? LabelPosition_Left : LabelPosition_HCenter; |
1455 | break; |
1456 | } |
1457 | } |
1458 | |
1459 | switch (aDimensionAspect->TextVerticalPosition()) |
1460 | { |
1461 | case Prs3d_DTVP_Above : theLabelPosition |= LabelPosition_Above; break; |
1462 | case Prs3d_DTVP_Below : theLabelPosition |= LabelPosition_Below; break; |
1463 | case Prs3d_DTVP_Center : theLabelPosition |= LabelPosition_VCenter; break; |
1464 | } |
1465 | } |