src/FeaturesPlugin/FeaturesPlugin_Measurement.cpp

   1 // Copyright (C) 2018-2023  CEA, EDF
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "FeaturesPlugin_Measurement.h"
  21
  22 #include <ModelAPI_AttributeDoubleArray.h>
  23 #include <ModelAPI_AttributeSelection.h>
  24 #include <ModelAPI_AttributeString.h>
  25 #include <ModelAPI_Data.h>
  26 #include <ModelAPI_Session.h>
  27
  28 #include <GeomAPI_Angle.h>
  29 #include <GeomAPI_Circ.h>
  30 #include <GeomAPI_Edge.h>
  31 #include <GeomAPI_Face.h>
  32 #include <GeomAPI_Pnt.h>
  33 #include <GeomAPI_Shape.h>
  34 #include <GeomAPI_ShapeIterator.h>
  35 #include <GeomAPI_Vertex.h>
  36
  37 #include <GeomAlgoAPI_ShapeTools.h>
  38
  39 #include <Config_PropManager.h>
  40
  41 #include <TopoDS.hxx>
  42 #include <TopoDS_Edge.hxx>
  43 #include <TopoDS_Shape.hxx>
  44 #include <PrsDim_Dimension.hxx>
  45 #include <PrsDim_LengthDimension.hxx>
  46 #include <PrsDim_RadiusDimension.hxx>
  47 #include <PrsDim_AngleDimension.hxx>
  48 #include <BRepExtrema_DistShapeShape.hxx>
  49
  50 #include <Basics_OCCTVersion.hxx>
  51
  52 #include <iomanip>
  53 #include <sstream>
  54 #include <array>
  55
  56 FeaturesPlugin_Measurement::FeaturesPlugin_Measurement() : mySceenScale(1)
  57 {
  58 }
  59
  60 void FeaturesPlugin_Measurement::initAttributes()
  61 {
  62   data()->addAttribute(FeaturesPlugin_Measurement::MEASURE_KIND(),
  63                        ModelAPI_AttributeString::typeId());
  64
  65   // attribute for length
  66   data()->addAttribute(EDGE_FOR_LENGTH_ID(), ModelAPI_AttributeSelection::typeId());
  67   // attributes for distance
  68   data()->addAttribute(DISTANCE_FROM_OBJECT_ID(), ModelAPI_AttributeSelection::typeId());
  69   data()->addAttribute(DISTANCE_TO_OBJECT_ID(), ModelAPI_AttributeSelection::typeId());
  70   // attribute for radius
  71   data()->addAttribute(CIRCULAR_OBJECT_ID(), ModelAPI_AttributeSelection::typeId());
  72   // attributes for angle
  73   data()->addAttribute(ANGLE_FROM_EDGE_ID(), ModelAPI_AttributeSelection::typeId());
  74   data()->addAttribute(ANGLE_TO_EDGE_ID(), ModelAPI_AttributeSelection::typeId());
  75   // attributes for angle by 3 points
  76   data()->addAttribute(ANGLE_POINT1_ID(), ModelAPI_AttributeSelection::typeId());
  77   data()->addAttribute(ANGLE_POINT2_ID(), ModelAPI_AttributeSelection::typeId());
  78   data()->addAttribute(ANGLE_POINT3_ID(), ModelAPI_AttributeSelection::typeId());
  79   // attributes for result message and values
  80   data()->addAttribute(RESULT_ID(), ModelAPI_AttributeString::typeId());
  81   data()->addAttribute(RESULT_VALUES_ID(), ModelAPI_AttributeDoubleArray::typeId());
  82 }
  83
  84 void FeaturesPlugin_Measurement::execute()
  85 {
  86 }
  87
  88 void FeaturesPlugin_Measurement::attributeChanged(const std::string& theID)
  89 {
  90   if (theID == MEASURE_KIND()) {
  91     // clear results
  92     string(RESULT_ID())->setValue("");
  93     std::dynamic_pointer_cast<ModelAPI_AttributeDoubleArray>(
  94       attribute(RESULT_VALUES_ID()))->setSize(0);
  95   }
  96   else if (theID != RESULT_ID() &&
  97            theID != RESULT_VALUES_ID()) {
  98     std::string aKind = string(MEASURE_KIND())->value();
  99     if (aKind == MEASURE_LENGTH())
 100       computeLength();
 101     else if (aKind == MEASURE_DISTANCE())
 102       computeDistance();
 103     else if (aKind == MEASURE_PROXIMITY())
 104       computeProximity();
 105     else if (aKind == MEASURE_RADIUS())
 106       computeRadius();
 107     else if (aKind == MEASURE_ANGLE())
 108       computeAngle();
 109     else if (aKind == MEASURE_ANGLE_POINTS())
 110       computeAngleByPoints();
 111   }
 112 }
 113
 114 void FeaturesPlugin_Measurement::computeLength()
 115 {
 116   AttributeSelectionPtr aSelectedFeature = selection(EDGE_FOR_LENGTH_ID());
 117
 118   GeomShapePtr aShape;
 119   GeomEdgePtr anEdge;
 120   if (aSelectedFeature && aSelectedFeature->isInitialized()) {
 121     aShape = aSelectedFeature->value();
 122     if (!aShape && aSelectedFeature->context())
 123       aShape = aSelectedFeature->context()->shape();
 124   }
 125   if (aShape && aShape->isEdge())
 126     anEdge = GeomEdgePtr(new GeomAPI_Edge(aShape));
 127   if (!anEdge) {
 128     string(RESULT_ID())->setValue("");
 129     return;
 130   }
 131
 132   std::ostringstream anOutput;
 133   anOutput << "Length = " << std::setprecision(10) << anEdge->length();
 134   if(anEdge->isLine())
 135   {
 136     auto point1 = anEdge->firstPoint();
 137     auto point2 = anEdge->lastPoint();
 138
 139     anOutput <<"\n|dx| = " <<  std::setprecision(10) << std::abs(point2->x() - point1->x())
 140         <<"\n|dy| = " <<  std::setprecision(10) << std::abs(point2->y() - point1->y())
 141         <<"\n|dz| = " <<  std::setprecision(10) << std::abs(point2->z() - point1->z());
 142   }
 143   string(RESULT_ID())->setValue(anOutput.str());
 144
 145   AttributeDoubleArrayPtr aValues =
 146       std::dynamic_pointer_cast<ModelAPI_AttributeDoubleArray>(attribute(RESULT_VALUES_ID()));
 147   aValues->setSize(1);
 148   aValues->setValue(0, anEdge->length());
 149 }
 150
 151 void FeaturesPlugin_Measurement::computeDistance()
 152 {
 153   AttributeSelectionPtr aFirstFeature = selection(DISTANCE_FROM_OBJECT_ID());
 154   GeomShapePtr aShape1;
 155   if (aFirstFeature && aFirstFeature->isInitialized()) {
 156     aShape1 = aFirstFeature->value();
 157     if (!aShape1 && aFirstFeature->context())
 158       aShape1 = aFirstFeature->context()->shape();
 159   }
 160
 161   AttributeSelectionPtr aSecondFeature = selection(DISTANCE_TO_OBJECT_ID());
 162   GeomShapePtr aShape2;
 163   if (aSecondFeature && aSecondFeature->isInitialized()) {
 164     aShape2 = aSecondFeature->value();
 165     if (!aShape2 && aSecondFeature->context())
 166       aShape2 = aSecondFeature->context()->shape();
 167   }
 168
 169   if (!aShape1 || !aShape2) {
 170     string(RESULT_ID())->setValue("");
 171     return;
 172   }
 173
 174   std::array<double, 3> fromShape1To2;
 175   double aDistance = GeomAlgoAPI_ShapeTools::minimalDistance(aShape1, aShape2, fromShape1To2);
 176
 177   std::ostringstream anOutput;
 178   anOutput << "Distance = " << std::setprecision(10) << aDistance
 179            <<"\n|dx| = " <<  std::setprecision(10) << std::abs(fromShape1To2[0])
 180       <<"\n|dy| = " <<  std::setprecision(10) << std::abs(fromShape1To2[1])
 181       <<"\n|dz| = " <<  std::setprecision(10) << std::abs(fromShape1To2[2]);
 182   string(RESULT_ID())->setValue(anOutput.str());
 183
 184   AttributeDoubleArrayPtr aValues =
 185       std::dynamic_pointer_cast<ModelAPI_AttributeDoubleArray>(attribute(RESULT_VALUES_ID()));
 186   aValues->setSize(1);
 187   aValues->setValue(0, aDistance);
 188 }
 189
 190 void FeaturesPlugin_Measurement::computeProximity()
 191 {
 192   AttributeSelectionPtr aFirstFeature = selection(DISTANCE_FROM_OBJECT_ID());
 193   GeomShapePtr aShape1;
 194   if (aFirstFeature && aFirstFeature->isInitialized()) {
 195     aShape1 = aFirstFeature->value();
 196     if (!aShape1 && aFirstFeature->context())
 197       aShape1 = aFirstFeature->context()->shape();
 198   }
 199
 200   AttributeSelectionPtr aSecondFeature = selection(DISTANCE_TO_OBJECT_ID());
 201   GeomShapePtr aShape2;
 202   if (aSecondFeature && aSecondFeature->isInitialized()) {
 203     aShape2 = aSecondFeature->value();
 204     if (!aShape2 && aSecondFeature->context())
 205       aShape2 = aSecondFeature->context()->shape();
 206   }
 207
 208   if (!aShape1 || !aShape2) {
 209     string(RESULT_ID())->setValue("");
 210     return;
 211   }
 212
 213   double aDistance = GeomAlgoAPI_ShapeTools::shapeProximity(aShape1, aShape2);
 214
 215   std::ostringstream anOutput;
 216   anOutput << "Proximity = " << std::setprecision(10) << aDistance;
 217   string(RESULT_ID())->setValue(anOutput.str());
 218
 219   AttributeDoubleArrayPtr aValues =
 220       std::dynamic_pointer_cast<ModelAPI_AttributeDoubleArray>(attribute(RESULT_VALUES_ID()));
 221   aValues->setSize(1);
 222   aValues->setValue(0, aDistance);
 223 }
 224
 225 void FeaturesPlugin_Measurement::computeRadius()
 226 {
 227   AttributeSelectionPtr aSelectedFeature = selection(CIRCULAR_OBJECT_ID());
 228
 229   GeomShapePtr aShape;
 230   if (aSelectedFeature && aSelectedFeature->isInitialized()) {
 231     aShape = aSelectedFeature->value();
 232     if (!aShape && aSelectedFeature->context())
 233       aShape = aSelectedFeature->context()->shape();
 234   }
 235
 236   double aRadius = -1.0;
 237   if (aShape) {
 238     if (aShape->isEdge()) {
 239       GeomEdgePtr anEdge(new GeomAPI_Edge(aShape));
 240       if (anEdge->isCircle() || anEdge->isArc()) {
 241         aRadius = anEdge->circle()->radius();
 242       }
 243     } else if (aShape->isFace()) {
 244       GeomFacePtr aFace(new GeomAPI_Face(aShape));
 245       aRadius = GeomAlgoAPI_ShapeTools::radius(aFace);
 246     }
 247   }
 248
 249   if (aRadius < 0.0) {
 250     string(RESULT_ID())->setValue("");
 251     return;
 252   }
 253
 254   std::ostringstream anOutput;
 255   anOutput << "Radius = " << std::setprecision(10) << aRadius;
 256   string(RESULT_ID())->setValue(anOutput.str());
 257
 258   AttributeDoubleArrayPtr aValues =
 259       std::dynamic_pointer_cast<ModelAPI_AttributeDoubleArray>(attribute(RESULT_VALUES_ID()));
 260   aValues->setSize(1);
 261   aValues->setValue(0, aRadius);
 262 }
 263
 264 void FeaturesPlugin_Measurement::computeAngle()
 265 {
 266   AttributeSelectionPtr aFirstFeature = selection(ANGLE_FROM_EDGE_ID());
 267   GeomShapePtr aShape1;
 268   GeomEdgePtr anEdge1;
 269   if (aFirstFeature && aFirstFeature->isInitialized()) {
 270     aShape1 = aFirstFeature->value();
 271     if (!aShape1 && aFirstFeature->context())
 272       aShape1 = aFirstFeature->context()->shape();
 273   }
 274   if (aShape1 && aShape1->isEdge())
 275     anEdge1 = GeomEdgePtr(new GeomAPI_Edge(aShape1));
 276
 277   AttributeSelectionPtr aSecondFeature = selection(ANGLE_TO_EDGE_ID());
 278   GeomShapePtr aShape2;
 279   GeomEdgePtr anEdge2;
 280   if (aSecondFeature && aSecondFeature->isInitialized()) {
 281     aShape2 = aSecondFeature->value();
 282     if (!aShape2 && aSecondFeature->context())
 283       aShape2 = aSecondFeature->context()->shape();
 284   }
 285   if (aShape2 && aShape2->isEdge())
 286     anEdge2 = GeomEdgePtr(new GeomAPI_Edge(aShape2));
 287
 288   if (!anEdge1 || !anEdge2) {
 289     string(RESULT_ID())->setValue("");
 290     return;
 291   }
 292
 293   GeomShapePtr anInter = anEdge1->intersect(anEdge2);
 294
 295   std::ostringstream anOutput;
 296   anOutput << std::setprecision(10);
 297   std::list<double> aValuesList;
 298   if (anInter) {
 299     if (anInter->isVertex()) {
 300       std::shared_ptr<GeomAPI_Vertex> aVertex(new GeomAPI_Vertex(anInter));
 301       std::shared_ptr<GeomAPI_Angle> anAngle(
 302           new GeomAPI_Angle(anEdge1, anEdge2, aVertex->point()));
 303       double anAngleValue = anAngle->angleDegree();
 304       anOutput << "Angle = " << std::setprecision(10) << anAngleValue << std::endl;
 305       aValuesList.push_back(anAngleValue);
 306     }
 307     else {
 308       GeomAPI_ShapeIterator anIt(anInter);
 309       for (int anIndex = 1; anIt.more(); anIt.next(), ++anIndex) {
 310         GeomShapePtr aCurrent = anIt.current();
 311         if (!aCurrent->isVertex())
 312           continue;
 313         std::shared_ptr<GeomAPI_Vertex> aVertex(new GeomAPI_Vertex(aCurrent));
 314         std::shared_ptr<GeomAPI_Angle> anAngle(
 315             new GeomAPI_Angle(anEdge1, anEdge2, aVertex->point()));
 316         double anAngleValue = anAngle->angleDegree();
 317         anOutput << "Angle" << anIndex << " = "
 318                  << std::setprecision(10) << anAngleValue << std::endl;
 319         aValuesList.push_back(anAngleValue);
 320       }
 321     }
 322   }
 323
 324   string(RESULT_ID())->setValue(anOutput.str());
 325
 326   AttributeDoubleArrayPtr aValues =
 327       std::dynamic_pointer_cast<ModelAPI_AttributeDoubleArray>(attribute(RESULT_VALUES_ID()));
 328   aValues->setSize((int)aValuesList.size());
 329   int anIndex = 0;
 330   for (std::list<double>::iterator anIt = aValuesList.begin(); anIt != aValuesList.end(); ++anIt)
 331     aValues->setValue(anIndex++, *anIt);
 332 }
 333
 334 static GeomVertexPtr selectionToVertex(const AttributeSelectionPtr& aSelection)
 335 {
 336   GeomShapePtr aShape;
 337   GeomVertexPtr aVertex;
 338   if (aSelection && aSelection->isInitialized()) {
 339     aShape = aSelection->value();
 340     if (!aShape && aSelection->context())
 341       aShape = aSelection->context()->shape();
 342   }
 343   if (aShape && aShape->isVertex())
 344     aVertex = GeomVertexPtr(new GeomAPI_Vertex(aShape));
 345   return aVertex;
 346 }
 347
 348 void FeaturesPlugin_Measurement::computeAngleByPoints()
 349 {
 350   GeomVertexPtr aVertex1 = selectionToVertex(selection(ANGLE_POINT1_ID()));
 351   GeomVertexPtr aVertex2 = selectionToVertex(selection(ANGLE_POINT2_ID()));
 352   GeomVertexPtr aVertex3 = selectionToVertex(selection(ANGLE_POINT3_ID()));
 353
 354   if (!aVertex1 || !aVertex2 || ! aVertex3) {
 355     string(RESULT_ID())->setValue("");
 356     return;
 357   }
 358
 359   std::shared_ptr<GeomAPI_Angle> anAngle(
 360       new GeomAPI_Angle(aVertex1->point(), aVertex2->point(), aVertex3->point()));
 361   double anAngleValue = anAngle->angleDegree();
 362
 363   std::ostringstream anOutput;
 364   anOutput << "Angle = " << std::setprecision(10) << anAngleValue;
 365   string(RESULT_ID())->setValue(anOutput.str());
 366
 367   AttributeDoubleArrayPtr aValues =
 368     std::dynamic_pointer_cast<ModelAPI_AttributeDoubleArray>(attribute(RESULT_VALUES_ID()));
 369   aValues->setSize(1);
 370   aValues->setValue(0, anAngleValue);
 371 }
 372
 373 AISObjectPtr FeaturesPlugin_Measurement::getAISObject(AISObjectPtr thePrevious)
 374 {
 375   AttributeDoubleArrayPtr aValues =
 376     std::dynamic_pointer_cast<ModelAPI_AttributeDoubleArray>(attribute(RESULT_VALUES_ID()));
 377   if ((aValues->size() == 0) || (aValues->value(0) <= Precision::Confusion()))
 378     return AISObjectPtr();
 379
 380   if (!myScreenPlane) {
 381     // initialize a default plane for dimension
 382     GeomPointPtr anOrigin(new GeomAPI_Pnt(0., 0., 0.));
 383     GeomDirPtr aNormal(new GeomAPI_Dir(0., 0., 1.));
 384     myScreenPlane = GeomPlanePtr(new GeomAPI_Pln(anOrigin, aNormal));
 385   }
 386
 387   AISObjectPtr anAIS;
 388   std::string aKind = string(MEASURE_KIND())->value();
 389   if (aKind == MEASURE_LENGTH())
 390     anAIS = lengthDimension(thePrevious);
 391   else if (aKind == MEASURE_DISTANCE())
 392     anAIS = distanceDimension(thePrevious);
 393   else if (aKind == MEASURE_RADIUS())
 394     anAIS = radiusDimension(thePrevious);
 395   else if (aKind == MEASURE_ANGLE())
 396     anAIS = angleDimension(thePrevious);
 397   else if (aKind == MEASURE_ANGLE_POINTS())
 398     anAIS = angleByPointsDimension(thePrevious);
 399   setupDimension(anAIS);
 400   return anAIS;
 401 }
 402
 403 AISObjectPtr FeaturesPlugin_Measurement::lengthDimension(AISObjectPtr thePrevious)
 404 {
 405   AISObjectPtr aAISObj;
 406
 407   AttributeSelectionPtr aSelectedFeature = selection(EDGE_FOR_LENGTH_ID());
 408
 409   GeomShapePtr aShape;
 410   GeomEdgePtr anEdge;
 411   if (aSelectedFeature && aSelectedFeature->isInitialized()) {
 412     aShape = aSelectedFeature->value();
 413     if (!aShape && aSelectedFeature->context())
 414       aShape = aSelectedFeature->context()->shape();
 415   }
 416   if (aShape && aShape->isEdge())
 417     anEdge = GeomEdgePtr(new GeomAPI_Edge(aShape));
 418   if (anEdge) {
 419     TopoDS_Edge aTEdge = TopoDS::Edge(anEdge->impl<TopoDS_Shape>());
 420     GeomPointPtr aPoint1 = anEdge->firstPoint();
 421     GeomPointPtr aPoint2 = anEdge->lastPoint();
 422
 423     gp_Pnt aPnt1(aPoint1->impl<gp_Pnt>());
 424     gp_Pnt aPnt2(aPoint2->impl<gp_Pnt>());
 425
 426     double aLength = aPnt1.Distance(aPnt2);
 427     if (aLength > 0) {
 428       gp_Pln aPlane = myScreenPlane->impl<gp_Pln>(); // gce_MP.Value();
 429       aPlane.SetLocation(aPnt1);
 430
 431       gp_XYZ aNormal = aPlane.Axis().Direction().XYZ();
 432       gp_XYZ aVec(aPnt2.X() - aPnt1.X(), aPnt2.Y() - aPnt1.Y(), aPnt2.Z() - aPnt1.Z());
 433       double aDot = aNormal.Dot(aVec);
 434       if (fabs(aDot - aLength) <= Precision::Confusion()) {
 435         aPlane = gp_Pln(aPnt1, aPlane.XAxis().Direction());
 436       }
 437
 438       Handle(PrsDim_LengthDimension) aDim;
 439       if (thePrevious.get()) {
 440         aAISObj = thePrevious;
 441         Handle(AIS_InteractiveObject) aAIS = aAISObj->impl<Handle(AIS_InteractiveObject)>();
 442         aDim = Handle(PrsDim_LengthDimension)::DownCast(aAIS);
 443         if (aDim.IsNull()) {
 444           aDim = new PrsDim_LengthDimension(aTEdge, aPlane);
 445           aAISObj = AISObjectPtr(new GeomAPI_AISObject());
 446           aAISObj->setImpl(new Handle(AIS_InteractiveObject)(aDim));
 447         }
 448         else {
 449           aDim->SetMeasuredGeometry(aTEdge, aPlane);
 450         }
 451       }
 452       else {
 453         aDim = new PrsDim_LengthDimension(aTEdge, aPlane);
 454         aAISObj = AISObjectPtr(new GeomAPI_AISObject());
 455         aAISObj->setImpl(new Handle(AIS_InteractiveObject)(aDim));
 456       }
 457       aDim->SetFlyout(aLength / 3.);
 458     }
 459   }
 460   return aAISObj;
 461 }
 462
 463 AISObjectPtr FeaturesPlugin_Measurement::distanceDimension(AISObjectPtr thePrevious)
 464 {
 465   AISObjectPtr aAISObj;
 466
 467   AttributeSelectionPtr aFirstFeature = selection(DISTANCE_FROM_OBJECT_ID());
 468   AttributeSelectionPtr aSecondFeature = selection(DISTANCE_TO_OBJECT_ID());
 469   if (aFirstFeature.get() && aSecondFeature.get()) {
 470     GeomShapePtr aShape1;
 471     GeomShapePtr aShape2;
 472     if (aFirstFeature->isInitialized() && aSecondFeature->isInitialized()) {
 473       aShape1 = aFirstFeature->value();
 474       if (!aShape1 && aFirstFeature->context())
 475         aShape1 = aFirstFeature->context()->shape();
 476       aShape2 = aSecondFeature->value();
 477       if (!aShape2 && aSecondFeature->context())
 478         aShape2 = aSecondFeature->context()->shape();
 479     }
 480
 481     if (aShape1 && aShape2) {
 482       const TopoDS_Shape& aShp1 = aShape1->impl<TopoDS_Shape>();
 483       const TopoDS_Shape& aShp2 = aShape2->impl<TopoDS_Shape>();
 484       BRepExtrema_DistShapeShape aDist(aShp1, aShp2);
 485       aDist.Perform();
 486       if (aDist.IsDone()) {
 487         gp_Pnt aPnt1 = aDist.PointOnShape1(1);
 488         gp_Pnt aPnt2 = aDist.PointOnShape2(1);
 489         double aDistance = aDist.Value();
 490         if (aDistance > 0) {
 491           gp_Pln aPlane = myScreenPlane->impl<gp_Pln>();
 492           aPlane.SetLocation(aPnt1);
 493
 494           gp_XYZ aNormal = aPlane.Axis().Direction().XYZ();
 495           gp_XYZ aVec(aPnt2.X() - aPnt1.X(), aPnt2.Y() - aPnt1.Y(), aPnt2.Z() - aPnt1.Z());
 496           double aDot = aNormal.Dot(aVec);
 497           if (fabs(aDot - aDistance) <= Precision::Confusion()) {
 498             aPlane = gp_Pln(aPnt1, aPlane.XAxis().Direction());
 499           }
 500
 501           Handle(PrsDim_LengthDimension) aDim;
 502           if (thePrevious.get()) {
 503             aAISObj = thePrevious;
 504             Handle(AIS_InteractiveObject) aAIS = aAISObj->impl<Handle(AIS_InteractiveObject)>();
 505             aDim = Handle(PrsDim_LengthDimension)::DownCast(aAIS);
 506             if (aDim.IsNull()) {
 507               aDim = new PrsDim_LengthDimension(aPnt1, aPnt2, aPlane);
 508               aAISObj = AISObjectPtr(new GeomAPI_AISObject());
 509               aAISObj->setImpl(new Handle(AIS_InteractiveObject)(aDim));
 510             }
 511             else {
 512               aDim->SetMeasuredGeometry(aPnt1, aPnt2, aPlane);
 513               aDim->SetFlyout(aDistance / 3.);
 514             }
 515           }
 516           else {
 517             aAISObj = AISObjectPtr(new GeomAPI_AISObject());
 518             aDim = new PrsDim_LengthDimension(aPnt1, aPnt2, aPlane);
 519             aAISObj->setImpl(new Handle(AIS_InteractiveObject)(aDim));
 520           }
 521           aDim->SetFlyout(aDistance / 3.);
 522         }
 523       }
 524     }
 525   }
 526   return aAISObj;
 527 }
 528
 529 AISObjectPtr FeaturesPlugin_Measurement::radiusDimension(AISObjectPtr thePrevious)
 530 {
 531   AISObjectPtr aAISObj;
 532   AttributeSelectionPtr aSelectedFeature = selection(CIRCULAR_OBJECT_ID());
 533
 534   GeomShapePtr aShape;
 535   if (aSelectedFeature && aSelectedFeature->isInitialized()) {
 536     aShape = aSelectedFeature->value();
 537     if (!aShape && aSelectedFeature->context())
 538       aShape = aSelectedFeature->context()->shape();
 539   }
 540   if (aShape.get()) {
 541     TopoDS_Shape aShp = aShape->impl<TopoDS_Shape>();
 542     if (thePrevious.get()) {
 543       aAISObj = thePrevious;
 544       Handle(AIS_InteractiveObject) aAIS = aAISObj->impl<Handle(AIS_InteractiveObject)>();
 545       Handle(PrsDim_RadiusDimension) aDim = Handle(PrsDim_RadiusDimension)::DownCast(aAIS);
 546       if (aDim.IsNull()) {
 547         aDim = new PrsDim_RadiusDimension(aShp);
 548         aAISObj = AISObjectPtr(new GeomAPI_AISObject());
 549         aAISObj->setImpl(new Handle(AIS_InteractiveObject)(aDim));
 550       } else
 551         aDim->SetMeasuredGeometry(aShp);
 552     } else {
 553       aAISObj = AISObjectPtr(new GeomAPI_AISObject());
 554       Handle(PrsDim_RadiusDimension) aDim = new PrsDim_RadiusDimension(aShp);
 555       aAISObj->setImpl(new Handle(AIS_InteractiveObject)(aDim));
 556     }
 557   }
 558   return aAISObj;
 559 }
 560
 561 AISObjectPtr FeaturesPlugin_Measurement::angleDimension(AISObjectPtr thePrevious)
 562 {
 563   AISObjectPtr aAISObj;
 564   AttributeSelectionPtr aFirstFeature = selection(ANGLE_FROM_EDGE_ID());
 565   GeomShapePtr aShape1;
 566   GeomEdgePtr anEdge1;
 567   if (aFirstFeature && aFirstFeature->isInitialized()) {
 568     aShape1 = aFirstFeature->value();
 569     if (!aShape1 && aFirstFeature->context())
 570       aShape1 = aFirstFeature->context()->shape();
 571   }
 572   if (aShape1 && aShape1->isEdge())
 573     anEdge1 = GeomEdgePtr(new GeomAPI_Edge(aShape1));
 574
 575   AttributeSelectionPtr aSecondFeature = selection(ANGLE_TO_EDGE_ID());
 576   GeomShapePtr aShape2;
 577   GeomEdgePtr anEdge2;
 578   if (aSecondFeature && aSecondFeature->isInitialized()) {
 579     aShape2 = aSecondFeature->value();
 580     if (!aShape2 && aSecondFeature->context())
 581       aShape2 = aSecondFeature->context()->shape();
 582   }
 583   if (aShape2 && aShape2->isEdge())
 584     anEdge2 = GeomEdgePtr(new GeomAPI_Edge(aShape2));
 585
 586   if (anEdge1.get() && anEdge2.get()) {
 587     TopoDS_Edge aTEdge1 = TopoDS::Edge(anEdge1->impl<TopoDS_Shape>());
 588     TopoDS_Edge aTEdge2 = TopoDS::Edge(anEdge2->impl<TopoDS_Shape>());
 589
 590     Handle(PrsDim_AngleDimension) aDim;
 591     if (thePrevious.get()) {
 592       aAISObj = thePrevious;
 593       Handle(AIS_InteractiveObject) aAIS = aAISObj->impl<Handle(AIS_InteractiveObject)>();
 594       aDim = Handle(PrsDim_AngleDimension)::DownCast(aAIS);
 595       if (aDim.IsNull()) {
 596         aDim = new PrsDim_AngleDimension(aTEdge1, aTEdge2);
 597         aAISObj = AISObjectPtr(new GeomAPI_AISObject());
 598         aAISObj->setImpl(new Handle(AIS_InteractiveObject)(aDim));
 599       } else
 600         aDim->SetMeasuredGeometry(aTEdge1, aTEdge2);
 601     } else {
 602       aAISObj = AISObjectPtr(new GeomAPI_AISObject());
 603       aDim = new PrsDim_AngleDimension(aTEdge1, aTEdge2);
 604       aAISObj->setImpl(new Handle(AIS_InteractiveObject)(aDim));
 605     }
 606   }
 607   return aAISObj;
 608 }
 609
 610 AISObjectPtr FeaturesPlugin_Measurement::angleByPointsDimension(AISObjectPtr thePrevious)
 611 {
 612   AISObjectPtr aAISObj;
 613   GeomVertexPtr aVertex1 = selectionToVertex(selection(ANGLE_POINT1_ID()));
 614   GeomVertexPtr aVertex2 = selectionToVertex(selection(ANGLE_POINT2_ID()));
 615   GeomVertexPtr aVertex3 = selectionToVertex(selection(ANGLE_POINT3_ID()));
 616
 617   if (aVertex1.get() && aVertex2.get() && aVertex3.get()) {
 618     GeomPointPtr aPoint1 = aVertex1->point();
 619     GeomPointPtr aPoint2 = aVertex2->point();
 620     GeomPointPtr aPoint3 = aVertex3->point();
 621     gp_Pnt aPnt1(aPoint1->impl<gp_Pnt>());
 622     gp_Pnt aPnt2(aPoint2->impl<gp_Pnt>());
 623     gp_Pnt aPnt3(aPoint3->impl<gp_Pnt>());
 624
 625     if (aPnt1.IsEqual(aPnt2, Precision::Confusion()) ||
 626       aPnt1.IsEqual(aPnt3, Precision::Confusion()) ||
 627       aPnt2.IsEqual(aPnt3, Precision::Confusion()))
 628       return thePrevious;
 629
 630     if (thePrevious.get()) {
 631       aAISObj = thePrevious;
 632       Handle(AIS_InteractiveObject) aAIS = aAISObj->impl<Handle(AIS_InteractiveObject)>();
 633       Handle(PrsDim_AngleDimension) aDim = Handle(PrsDim_AngleDimension)::DownCast(aAIS);
 634       if (aDim.IsNull()) {
 635         aDim = new PrsDim_AngleDimension(aPnt1, aPnt2, aPnt3);
 636         aAISObj = AISObjectPtr(new GeomAPI_AISObject());
 637         aAISObj->setImpl(new Handle(AIS_InteractiveObject)(aDim));
 638       } else
 639         aDim->SetMeasuredGeometry(aPnt1, aPnt2, aPnt3);
 640     } else {
 641       Handle(PrsDim_AngleDimension) aDim = new PrsDim_AngleDimension(aPnt1, aPnt2, aPnt3);
 642       aAISObj = AISObjectPtr(new GeomAPI_AISObject());
 643       aAISObj->setImpl(new Handle(AIS_InteractiveObject)(aDim));
 644     }
 645   }
 646   return aAISObj;
 647 }
 648
 649
 650 void FeaturesPlugin_Measurement::setupDimension(AISObjectPtr theDim)
 651 {
 652   if (theDim.get()) {
 653     Handle(AIS_InteractiveObject) aAIS = theDim->impl<Handle(AIS_InteractiveObject)>();
 654     Handle(PrsDim_Dimension) aDim = Handle(PrsDim_Dimension)::DownCast(aAIS);
 655     int aSize = Config_PropManager::integer("Visualization", "dimension_arrow_size");
 656     int aTextSize = Config_PropManager::integer("Visualization", "dimension_value_size");
 657     std::string aFont = Config_PropManager::string("Visualization", "dimension_font");
 658
 659     Handle(Prs3d_DimensionAspect) anAspect = aDim->DimensionAspect();
 660 #if OCC_VERSION_LARGE >= 0x07070000
 661     if (anAspect.IsNull()) {
 662       aDim->Attributes()->SetupOwnDefaults();
 663       anAspect = aDim->DimensionAspect();
 664     }
 665 #endif
 666     anAspect->MakeArrows3d(false);
 667     anAspect->MakeText3d(false);
 668     anAspect->MakeTextShaded(false);
 669     anAspect->MakeUnitsDisplayed(false);
 670     anAspect->MakeUnitsDisplayed(false);
 671     anAspect->TextAspect()->SetFont(aFont.c_str());
 672     anAspect->TextAspect()->SetHeight(aTextSize);
 673     anAspect->ArrowAspect()->SetLength(aSize / mySceenScale);
 674     anAspect->SetExtensionSize((aTextSize / mySceenScale + aSize) / 2.0);
 675     aDim->SetDimensionAspect(anAspect);
 676
 677     aDim->SetZLayer(Graphic3d_ZLayerId_Top);
 678     std::vector<int> aColor = Config_PropManager::color("Visualization", "sketch_dimension_color");
 679     theDim->setColor(aColor[0], aColor[1], aColor[2]);
 680   }
 681 }