src/SketchPlugin/SketchPlugin_Trim.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:    SketchPlugin_Trim.cpp
   4 // Created: 22 Feb 2017
   5 // Author:  Natalia ERMOLAEVA
   6
   7 #include "SketchPlugin_Trim.h"
   8
   9 #include <GeomAPI_Dir2d.h>
  10 #include <GeomAPI_Edge.h>
  11 #include <GeomAPI_Pnt2d.h>
  12 #include <GeomAPI_XY.h>
  13 #include <GeomDataAPI_Point2D.h>
  14 #include <GeomAlgoAPI_ShapeTools.h>
  15
  16 #include <ModelAPI_AttributeReference.h>
  17 #include <ModelAPI_AttributeString.h>
  18 #include <ModelAPI_AttributeRefAttr.h>
  19 #include <ModelAPI_Tools.h>
  20 #include <ModelAPI_AttributeBoolean.h>
  21
  22 #include <ModelAPI_Validator.h>
  23 #include <ModelAPI_Session.h>
  24 #include <ModelAPI_AttributeDouble.h>
  25
  26 #include <SketchPlugin_Arc.h>
  27 #include <SketchPlugin_ConstraintMiddle.h>
  28 #include <SketchPlugin_Circle.h>
  29 #include <SketchPlugin_ConstraintCoincidence.h>
  30 #include <SketchPlugin_ConstraintEqual.h>
  31 //#include <SketchPlugin_ConstraintParallel.h>
  32 #include <SketchPlugin_ConstraintTangent.h>
  33 #include <SketchPlugin_ConstraintLength.h>
  34 #include <SketchPlugin_ConstraintMirror.h>
  35 #include <SketchPlugin_ConstraintCollinear.h>
  36 #include <SketchPlugin_Line.h>
  37 #include <SketchPlugin_MultiRotation.h>
  38 #include <SketchPlugin_MultiTranslation.h>
  39 #include <SketchPlugin_Point.h>
  40
  41 #include <ModelAPI_Events.h>
  42 #include <SketchPlugin_Line.h>
  43 #include <SketchPlugin_Arc.h>
  44 #include <SketchPlugin_Circle.h>
  45
  46 #include <ModelGeomAlgo_Point2D.h>
  47 #include <Events_Loop.h>
  48
  49 #include <cmath>
  50
  51 #define DEBUG_TRIM
  52 #ifdef DEBUG_TRIM
  53 #include <iostream>
  54 #endif
  55
  56 static const double PI = 3.141592653589793238463;
  57
  58 static const std::string OPERATION_HIGHLIGHT_COLOR() { return "128, 0, 0"; }
  59
  60 SketchPlugin_Trim::SketchPlugin_Trim()
  61 {
  62 }
  63
  64 void SketchPlugin_Trim::initAttributes()
  65 {
  66   data()->addAttribute(SketchPlugin_Trim::BASE_OBJECT(), ModelAPI_AttributeReference::typeId());
  67   data()->addAttribute(ENTITY_POINT(), GeomDataAPI_Point2D::typeId());
  68 }
  69
  70 void SketchPlugin_Trim::findShapePoints(std::shared_ptr<GeomAPI_Pnt>& aStartPoint,
  71                                         std::shared_ptr<GeomAPI_Pnt>& aLastPoint)
  72 {
  73   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
  74                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
  75   ObjectPtr aBaseObject = aBaseObjectAttr->value();
  76
  77   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
  78                                                             data()->attribute(ENTITY_POINT()));
  79   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
  80   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = sketch()->to3D(anAttributePnt2d->x(),
  81                                                                anAttributePnt2d->y());
  82
  83   if (myCashedShapes.find(aBaseObject) == myCashedShapes.end())
  84     fillObjectShapes(aBaseObject);
  85
  86   const std::set<GeomShapePtr>& aShapes = myCashedShapes[aBaseObject];
  87   if (!aShapes.empty()) {
  88     std::set<GeomShapePtr>::const_iterator anIt = aShapes.begin(), aLast = aShapes.end();
  89     for (; anIt != aLast; anIt++) {
  90       GeomShapePtr aBaseShape = *anIt;
  91       std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
  92       if (ModelGeomAlgo_Point2D::isPointOnEdge(aBaseShape, anAttributePnt, aProjectedPoint)) {
  93
  94         if (aBaseShape->shapeType() == GeomAPI_Shape::EDGE) {
  95           std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aBaseShape));
  96           aStartPoint = anEdge->lastPoint();
  97           aLastPoint = anEdge->firstPoint();
  98         }
  99       }
 100     }
 101   }
 102 #ifdef DEBUG_TRIM
 103   std::cout << "<findShapePoints> => "
 104             << "Start Point: ["
 105             << aStartPoint->x() << ", " << aStartPoint->y() << ", " << aStartPoint->z() << "]"
 106             << "Last Point: ["
 107             << aLastPoint->x() << ", " << aLastPoint->y() << ", " << aLastPoint->z() << "]"
 108             << std::endl;
 109 #endif
 110 }
 111
 112 std::shared_ptr<GeomAPI_Pnt2d> SketchPlugin_Trim::convertPoint(
 113                                                    const std::shared_ptr<GeomAPI_Pnt>& thePoint)
 114 {
 115   std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 116
 117   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 118                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 119   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 120   if (myObjectToPoints.find(aBaseObject) == myObjectToPoints.end())
 121     return aPoint;
 122
 123   bool aFound = false;
 124   const PointToRefsMap& aRefsMap = myObjectToPoints.at(aBaseObject);
 125   for (PointToRefsMap::const_iterator aPointIt = aRefsMap.begin();
 126        aPointIt != aRefsMap.end() && !aFound; aPointIt++) {
 127     if (aPointIt->first->isEqual(thePoint)) {
 128       const std::pair<std::list<AttributePoint2DPtr >,
 129                std::list<ObjectPtr > >& anInfo = aPointIt->second;
 130       const std::list<AttributePoint2DPtr >& anAttributes = anInfo.first;
 131       if (!anAttributes.empty()) {
 132         aPoint = anAttributes.front()->pnt();
 133         aFound = true;
 134       }
 135       else {
 136         std::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
 137         aPoint = thePoint->to2D(aPlane);
 138         aFound = true;
 139       }
 140     }
 141   }
 142   if (!aFound) {
 143     // returns an end of the shape to define direction of split if feature's attribute participates
 144     std::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
 145     aPoint = thePoint->to2D(aPlane);
 146   }
 147   return aPoint;
 148 }
 149
 150 void SketchPlugin_Trim::execute()
 151 {
 152 #ifdef DEBUG_TRIM
 153   std::cout << "SketchPlugin_Trim::execute" << std::endl;
 154 #endif
 155
 156   SketchPlugin_Sketch* aSketch = sketch();
 157   if (!aSketch)
 158     return;
 159
 160   // Check the base objects are initialized.
 161   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 162                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 163   if(!aBaseObjectAttr->isInitialized()) {
 164     setError("Error: Base object is not initialized.");
 165     return;
 166   }
 167   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 168   if (!aBaseObject.get())
 169     return;
 170   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 171
 172   /// points of trim
 173   std::shared_ptr<GeomAPI_Pnt> aStartShapePoint, aLastShapePoint;
 174   findShapePoints(aStartShapePoint, aLastShapePoint);
 175   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint2d = convertPoint(aStartShapePoint);
 176
 177   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint2d = convertPoint(aLastShapePoint);
 178
 179   std::set<FeaturePtr> aFeaturesToDelete, aFeaturesToUpdate;
 180   getConstraints(aFeaturesToDelete, aFeaturesToUpdate);
 181
 182   std::map<AttributePtr, std::list<AttributePtr> > aBaseRefAttributes;
 183   std::list<AttributePtr> aRefsToFeature;
 184   getRefAttributes(aBaseFeature, aBaseRefAttributes, aRefsToFeature);
 185
 186   std::set<AttributePoint2DPtr> aFurtherCoincidences;
 187   std::set<FeaturePtr> aCreatedFeatures;
 188   std::set<std::pair<AttributePtr, AttributePtr>> aModifiedAttributes;
 189   const std::string& aKind = aBaseFeature->getKind();
 190   if (aKind == SketchPlugin_Circle::ID()) {
 191     trimCircle(aStartShapePoint2d, aLastShapePoint2d,
 192                aFurtherCoincidences, aCreatedFeatures, aModifiedAttributes);
 193     updateRefFeatureConstraints(getFeatureResult(aBaseFeature), aRefsToFeature);
 194
 195     aFeaturesToDelete.insert(aBaseFeature);
 196     // as circle is removed, temporary fill this attribute
 197     aBaseObjectAttr->setObject(ResultPtr());
 198   }
 199   else if (aKind == SketchPlugin_Line::ID()) {
 200     trimLine(aStartShapePoint2d, aLastShapePoint2d,
 201              aFurtherCoincidences, aCreatedFeatures, aModifiedAttributes);
 202   }
 203   else if (aKind == SketchPlugin_Arc::ID()) {
 204     trimArc(aStartShapePoint2d, aLastShapePoint2d,
 205             aFurtherCoincidences, aCreatedFeatures, aModifiedAttributes);
 206   }
 207
 208   // coincidence to result points
 209   const PointToRefsMap& aRefsMap = myObjectToPoints.at(aBaseObject);
 210   std::set<AttributePoint2DPtr>::const_iterator anIt = aFurtherCoincidences.begin(),
 211                                                 aLast = aFurtherCoincidences.end();
 212   for (; anIt != aLast; anIt++) {
 213     AttributePoint2DPtr aPointAttribute = (*anIt);
 214     std::shared_ptr<GeomAPI_Pnt2d> aPoint2d = aPointAttribute->pnt();
 215
 216     std::shared_ptr<GeomAPI_Pnt> aPoint;
 217     if (aStartShapePoint2d.get() && aPoint2d->isEqual(aStartShapePoint2d))
 218       aPoint = aStartShapePoint;
 219     else if (aLastShapePoint2d.get() && aPoint2d->isEqual(aLastShapePoint2d))
 220       aPoint = aLastShapePoint;
 221
 222     if (!aPoint.get())
 223       continue;
 224
 225     std::pair<std::list<AttributePoint2DPtr >, std::list<ObjectPtr > > anInfo;
 226     for (PointToRefsMap::const_iterator aRefIt = aRefsMap.begin(); aRefIt != aRefsMap.end();
 227          aRefIt++)
 228     {
 229       if (aRefIt->first->isEqual(aPoint)) {
 230         anInfo = aRefIt->second;
 231         break;
 232       }
 233     }
 234     const std::list<AttributePoint2DPtr >& anAttributes = anInfo.first;
 235     for (std::list<AttributePoint2DPtr>::const_iterator anAttrIt = anAttributes.begin();
 236       anAttrIt != anAttributes.end(); anAttrIt++) {
 237       createConstraint(SketchPlugin_ConstraintCoincidence::ID(), aPointAttribute, *anAttrIt);
 238     }
 239
 240     const std::list<ObjectPtr>& anObjects = anInfo.second;
 241     for (std::list<ObjectPtr>::const_iterator anObjectIt = anObjects.begin();
 242       anObjectIt != anObjects.end(); anObjectIt++) {
 243       createConstraintToObject(SketchPlugin_ConstraintCoincidence::ID(), aPointAttribute,
 244                                *anObjectIt);
 245     }
 246   }
 247
 248   // Wait all constraints being created, then send update events
 249   static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
 250   bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
 251   if (isUpdateFlushed)
 252     Events_Loop::loop()->setFlushed(anUpdateEvent, false);
 253
 254   updateRefAttConstraints(aBaseRefAttributes, aModifiedAttributes, aFeaturesToDelete);
 255
 256   // delete constraints
 257 #ifdef DEBUG_TRIM
 258   std::cout << "remove features and references:" << std::endl;
 259   std::set<FeaturePtr>::const_iterator aDIt = aFeaturesToDelete.begin(),
 260                                        aDLast = aFeaturesToDelete.end();
 261   for (; aDIt != aDLast; aDIt++) {
 262     //std::cout << getFeatureInfo(*aDIt, false) << std::endl;
 263     //std::cout << std::endl;
 264   }
 265 #endif
 266   ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToDelete);
 267   Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_DELETED));
 268
 269   // Send events to update the sub-features by the solver.
 270   if(isUpdateFlushed) {
 271     Events_Loop::loop()->setFlushed(anUpdateEvent, true);
 272   }
 273
 274 #ifdef DEBUG_TRIM
 275   std::cout << "SketchPlugin_Trim::done" << std::endl;
 276 #endif
 277 }
 278
 279 bool SketchPlugin_Trim::isMacro() const
 280 {
 281   return true;
 282 }
 283
 284 AISObjectPtr SketchPlugin_Trim::getAISObject(AISObjectPtr thePrevious)
 285 {
 286   AISObjectPtr anAIS = thePrevious;
 287   // feature for trim
 288   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 289                                            data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 290   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 291   if (!aBaseObject.get())
 292     return anAIS;
 293   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 294
 295   // point on feature
 296   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 297                                            data()->attribute(ENTITY_POINT()));
 298   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
 299   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = sketch()->to3D(anAttributePnt2d->x(),
 300                                                                anAttributePnt2d->y());
 301
 302   if (myCashedShapes.find(aBaseObject) == myCashedShapes.end())
 303     fillObjectShapes(aBaseObject);
 304
 305   const std::set<GeomShapePtr>& aShapes = myCashedShapes[aBaseObject];
 306   if (!aShapes.empty()) {
 307     std::set<GeomShapePtr>::const_iterator anIt = aShapes.begin(), aLast = aShapes.end();
 308     for (; anIt != aLast; anIt++) {
 309       GeomShapePtr aBaseShape = *anIt;
 310       std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
 311       if (ModelGeomAlgo_Point2D::isPointOnEdge(aBaseShape, anAttributePnt, aProjectedPoint)) {
 312         if (aBaseShape) {
 313           if (!anAIS)
 314             anAIS = AISObjectPtr(new GeomAPI_AISObject);
 315           anAIS->createShape(aBaseShape);
 316
 317           std::shared_ptr<ModelAPI_AttributeBoolean> anAuxiliaryAttr =
 318                  aBaseFeature->data()->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID());
 319
 320           bool isConstruction = anAuxiliaryAttr.get() != NULL && anAuxiliaryAttr->value();
 321
 322           std::vector<int> aColor;
 323           aColor = Config_PropManager::color("Visualization", "operation_highlight_color",
 324                                              OPERATION_HIGHLIGHT_COLOR());
 325           double aWidth = SketchPlugin_SketchEntity::SKETCH_LINE_WIDTH();
 326           int aLineStyle = SketchPlugin_SketchEntity::SKETCH_LINE_STYLE();
 327           if (isConstruction) {
 328             aWidth = SketchPlugin_SketchEntity::SKETCH_LINE_WIDTH_AUXILIARY();
 329             aLineStyle = SketchPlugin_SketchEntity::SKETCH_LINE_STYLE_AUXILIARY();
 330           }
 331           anAIS->setColor(aColor[0], aColor[1], aColor[2]);
 332            // modification of width should be replaced to value 1 after highlight problem is fixed
 333           anAIS->setWidth(aWidth + 2);//1);
 334           anAIS->setLineStyle(aLineStyle);
 335           break;
 336         }
 337       }
 338     }
 339   }
 340
 341   return anAIS;
 342 }
 343
 344 void SketchPlugin_Trim::getFeaturePoints(const FeaturePtr& theFeature,
 345                                          AttributePoint2DPtr& theStartPointAttr,
 346                                          AttributePoint2DPtr& theEndPointAttr)
 347 {
 348   std::string aFeatureKind = theFeature->getKind();
 349   std::string aStartAttributeName, anEndAttributeName;
 350   if (aFeatureKind == SketchPlugin_Line::ID()) {
 351     aStartAttributeName = SketchPlugin_Line::START_ID();
 352     anEndAttributeName = SketchPlugin_Line::END_ID();
 353   }
 354   else if (aFeatureKind == SketchPlugin_Arc::ID()) {
 355     aStartAttributeName = SketchPlugin_Arc::START_ID();
 356     anEndAttributeName = SketchPlugin_Arc::END_ID();
 357   }
 358   if (!aStartAttributeName.empty() && !anEndAttributeName.empty()) {
 359     theStartPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 360                                          theFeature->attribute(aStartAttributeName));
 361     theEndPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 362                                          theFeature->attribute(anEndAttributeName));
 363   }
 364 }
 365
 366 void SketchPlugin_Trim::getConstraints(std::set<FeaturePtr>& theFeaturesToDelete,
 367                                       std::set<FeaturePtr>& theFeaturesToUpdate)
 368 {
 369   std::shared_ptr<ModelAPI_Data> aData = data();
 370
 371   // Check the base objects are initialized.
 372   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 373                                             aData->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 374   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 375   ResultPtr aBaseFeatureResult = getFeatureResult(aBaseFeature);
 376
 377   std::set<AttributePtr> aRefsList = aBaseFeatureResult->data()->refsToMe();
 378   std::set<AttributePtr> aFRefsList = aBaseFeature->data()->refsToMe();
 379   aRefsList.insert(aFRefsList.begin(), aFRefsList.end());
 380
 381   std::set<AttributePtr>::const_iterator aIt;
 382   for (aIt = aRefsList.cbegin(); aIt != aRefsList.cend(); ++aIt) {
 383     std::shared_ptr<ModelAPI_Attribute> aAttr = (*aIt);
 384     FeaturePtr aRefFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 385     std::string aRefFeatureKind = aRefFeature->getKind();
 386     if (aRefFeatureKind == SketchPlugin_ConstraintMirror::ID() ||
 387         aRefFeatureKind == SketchPlugin_MultiRotation::ID() ||
 388         aRefFeatureKind == SketchPlugin_MultiTranslation::ID() ||
 389         aRefFeatureKind == SketchPlugin_ConstraintMiddle::ID())
 390       theFeaturesToDelete.insert(aRefFeature);
 391     else if (aRefFeatureKind == SketchPlugin_ConstraintLength::ID())
 392       theFeaturesToUpdate.insert(aRefFeature);
 393     else if (aRefFeatureKind == SketchPlugin_ConstraintTangent::ID()) {
 394       if (aBaseFeature->getKind() == SketchPlugin_Circle::ID()) /// TEMPORARY limitaion
 395         /// until tangency between arc and line is implemented
 396         theFeaturesToDelete.insert(aRefFeature);
 397       else {
 398         std::string anAttributeToBeModified;
 399         AttributePoint2DPtr aTangentPoint;
 400         ObjectPtr aResult1 = aRefFeature->refattr(SketchPlugin_Constraint::ENTITY_A())->object();
 401         ObjectPtr aResult2 = aRefFeature->refattr(SketchPlugin_Constraint::ENTITY_B())->object();
 402         if (aResult1.get() && aResult2.get()) {
 403           FeaturePtr aCoincidenceFeature =
 404             SketchPlugin_ConstraintCoincidence::findCoincidenceFeature
 405                                                        (ModelAPI_Feature::feature(aResult1),
 406                                                         ModelAPI_Feature::feature(aResult2));
 407           // get the point not lying on the splitting feature
 408           for (int i = 0; i < CONSTRAINT_ATTR_SIZE; ++i) {
 409             AttributeRefAttrPtr aRefAttr = aCoincidenceFeature->refattr(
 410                                                         SketchPlugin_Trim::BASE_OBJECT());
 411             if (!aRefAttr || aRefAttr->isObject())
 412               continue;
 413             AttributePoint2DPtr aPoint =
 414                 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
 415             if (!aPoint)
 416               continue;
 417             if (aPoint->owner() != aBaseFeature) {
 418               aTangentPoint = aPoint;
 419               break;
 420             }
 421           }
 422         }
 423         if (aTangentPoint.get()) {
 424           // collect tangent feaures
 425         }
 426         else /// there is not coincident point between tangent constraint
 427           theFeaturesToDelete.insert(aRefFeature);
 428       }
 429     }
 430   }
 431 }
 432
 433 void SketchPlugin_Trim::getRefAttributes(const FeaturePtr& theFeature,
 434                                     std::map<AttributePtr, std::list<AttributePtr> >& theRefs,
 435                                     std::list<AttributePtr>& theRefsToFeature)
 436 {
 437   theRefs.clear();
 438
 439   std::list<AttributePtr> aPointAttributes =
 440     theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 441   std::set<AttributePtr> aPointAttributesSet;
 442
 443   std::list<AttributePtr>::const_iterator aPIt =
 444     aPointAttributes.begin(), aPLast = aPointAttributes.end();
 445   for (; aPIt != aPLast; aPIt++)
 446     aPointAttributesSet.insert(*aPIt);
 447
 448   std::set<AttributePtr> aRefsAttributes = getFeatureResult(theFeature)->data()->refsToMe();
 449   std::set<AttributePtr> aFRefsList = theFeature->data()->refsToMe();
 450   aRefsAttributes.insert(aFRefsList.begin(), aFRefsList.end());
 451
 452   std::set<AttributePtr>::const_iterator aIt;
 453   for (aIt = aRefsAttributes.cbegin(); aIt != aRefsAttributes.cend(); ++aIt) {
 454     AttributePtr anAttr = (*aIt);
 455     FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttr->owner());
 456     if (anAttrFeature.get() != this &&
 457         anAttr.get() && anAttr->attributeType() == ModelAPI_AttributeRefAttr::typeId()) {
 458       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttr);
 459       if (!aRefAttr->isObject()) { /// find attributes referenced to feature point attributes
 460         AttributePtr anAttrInRef = aRefAttr->attr();
 461         if (anAttrInRef.get() &&
 462             aPointAttributesSet.find(anAttrInRef) != aPointAttributesSet.end()) {
 463           if (theRefs.find(anAttrInRef) != theRefs.end())
 464             theRefs[anAttrInRef].push_back(aRefAttr);
 465           else {
 466             std::list<AttributePtr> anAttrList;
 467             anAttrList.push_back(aRefAttr);
 468             theRefs[anAttrInRef] = anAttrList;
 469           }
 470         }
 471       }
 472       else { /// find attributes referenced to feature itself
 473         theRefsToFeature.push_back(anAttr);
 474       }
 475     }
 476   }
 477 }
 478
 479 void SketchPlugin_Trim::updateRefFeatureConstraints(
 480                                                   const ResultPtr& theFeatureBaseResult,
 481                                                   const std::list<AttributePtr>& theRefsToFeature)
 482 {
 483   std::list<AttributePtr>::const_iterator anIt = theRefsToFeature.begin(),
 484                                           aLast = theRefsToFeature.end();
 485   for (; anIt != aLast; anIt++) {
 486     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anIt);
 487     if (aRefAttr.get())
 488       aRefAttr->setObject(theFeatureBaseResult);
 489   }
 490 }
 491
 492 void SketchPlugin_Trim::updateRefAttConstraints(
 493                     const std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes,
 494                     const std::set<std::pair<AttributePtr, AttributePtr> >& theModifiedAttributes,
 495                     std::set<FeaturePtr>& theFeaturesToDelete)
 496 {
 497 #ifdef DEBUG_TRIM
 498   std::cout << "SketchPlugin_Trim::updateRefAttConstraints" << std::endl;
 499 #endif
 500
 501   std::set<std::pair<AttributePtr, AttributePtr> >::const_iterator
 502     anIt = theModifiedAttributes.begin(),  aLast = theModifiedAttributes.end();
 503   for (; anIt != aLast; anIt++) {
 504     AttributePtr anAttribute = anIt->first;
 505
 506     /// not found in references
 507     if (theBaseRefAttributes.find(anAttribute) == theBaseRefAttributes.end())
 508       continue;
 509     std::list<AttributePtr> aRefAttributes = theBaseRefAttributes.at(anAttribute);
 510     std::list<AttributePtr>::const_iterator aRefIt = aRefAttributes.begin(),
 511                                             aRLast = aRefAttributes.end();
 512
 513     AttributePtr aNewAttribute = anIt->second;
 514     for (; aRefIt != aRLast; aRefIt++) {
 515       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*aRefIt);
 516       if (aRefAttr.get()) {
 517         if (aNewAttribute.get())
 518           aRefAttr->setAttr(aNewAttribute);
 519         else
 520           theFeaturesToDelete.insert(ModelAPI_Feature::feature(aRefAttr->owner()));
 521 #ifdef DEBUG_TRIM
 522         //FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->owner());
 523         //std::cout << " -" << getFeatureInfo(aFeature) << std::endl;
 524 #endif
 525       }
 526     }
 527   }
 528 }
 529
 530 void SketchPlugin_Trim::trimLine(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 531                                  const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 532                                  std::set<AttributePoint2DPtr>& thePoints,
 533                                  std::set<FeaturePtr>& theCreatedFeatures,
 534                   std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 535 {
 536   // Check the base objects are initialized.
 537   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 538                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 539   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 540   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 541
 542   /// points of trim
 543   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 544   getFeaturePoints(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 545
 546   std::shared_ptr<GeomAPI_Pnt2d> aStartFeaturePoint = aStartPointAttrOfBase->pnt();
 547   std::shared_ptr<GeomAPI_Pnt2d> aLastFeaturePoint = anEndPointAttrOfBase->pnt();
 548
 549   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint = theStartShapePoint;
 550   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint = theLastShapePoint;
 551   arrangePointsOnLine(aStartPointAttrOfBase, anEndPointAttrOfBase,
 552                       aStartShapePoint, aLastShapePoint);
 553 #ifdef DEBUG_TRIM
 554   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
 555   if (aStartShapePoint.get())
 556     std::cout << "Start point: [" << aStartShapePoint->x() << ", " <<
 557                                        aStartShapePoint->y() << "]" << std::endl;
 558   std::cout << "1st point:   [" << aStartFeaturePoint->x() << ", " <<
 559                                    aStartFeaturePoint->y() << "]" << std::endl;
 560   if (aLastShapePoint.get())
 561     std::cout << "2st point:   [" << aLastShapePoint->x() << ", " <<
 562                                      aLastShapePoint->y() << "]" << std::endl;
 563   std::cout << "End point:   [" << aLastFeaturePoint->x() << ", " <<
 564                                    aLastFeaturePoint->y() << "]" << std::endl;
 565 #endif
 566
 567   bool isStartPoint = !aStartShapePoint.get() || aStartFeaturePoint->isEqual(aStartShapePoint);
 568   bool isLastPoint = !aLastShapePoint.get() || aLastFeaturePoint->isEqual(aLastShapePoint);
 569   if (isStartPoint || isLastPoint) {
 570     // result is one line: changed existing line
 571     std::string aModifiedAttribute = isStartPoint ? SketchPlugin_Line::START_ID()
 572                                                   : SketchPlugin_Line::END_ID();
 573     std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 574     if (aStartShapePoint.get() && aLastShapePoint.get())
 575       aPoint = isStartPoint ? aLastShapePoint : aStartShapePoint;
 576     else
 577       aPoint = aStartShapePoint.get() ? aStartShapePoint : aLastShapePoint;
 578
 579     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aPoint);
 580     theModifiedAttributes.insert(
 581       std::make_pair(aBaseFeature->attribute(aModifiedAttribute), AttributePtr()));
 582
 583     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 584                                (aBaseFeature->attribute(aModifiedAttribute)));
 585   }
 586   else {
 587     // result is two lines: start line point - start shape point, last shape point - last line point
 588     // create second line
 589     FeaturePtr anNewFeature = createLineFeature(aBaseFeature, aLastShapePoint, aLastFeaturePoint);
 590     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 591                                (anNewFeature->attribute(SketchPlugin_Line::START_ID())));
 592
 593     std::string aModifiedAttribute = SketchPlugin_Line::END_ID();
 594     theModifiedAttributes.insert(
 595       std::make_pair(aBaseFeature->attribute(aModifiedAttribute),
 596                                    anNewFeature->attribute(SketchPlugin_Line::END_ID())));
 597
 598     // modify base arc
 599     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aStartShapePoint);
 600
 601     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 602                                (aBaseFeature->attribute(aModifiedAttribute)));
 603
 604     // Collinear constraint for lines
 605     createConstraintForObjects(SketchPlugin_ConstraintCollinear::ID(),
 606                                getFeatureResult(aBaseFeature),
 607                                getFeatureResult(anNewFeature));
 608
 609   }
 610 }
 611
 612 void SketchPlugin_Trim::trimArc(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 613                                 const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 614                                 std::set<AttributePoint2DPtr>& thePoints,
 615                                 std::set<FeaturePtr>& theCreatedFeatures,
 616                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 617 {
 618   // Check the base objects are initialized.
 619   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 620                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 621   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 622   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 623
 624   /// points of trim
 625   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 626   getFeaturePoints(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 627
 628   std::shared_ptr<GeomAPI_Pnt2d> aStartArcPoint = aStartPointAttrOfBase->pnt();
 629   std::shared_ptr<GeomAPI_Pnt2d> aLastArcPoint = anEndPointAttrOfBase->pnt();
 630
 631   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint = theStartShapePoint;
 632   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint = theLastShapePoint;
 633   arrangePointsOnArc(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase,
 634                      aStartShapePoint, aLastShapePoint);
 635 #ifdef DEBUG_TRIM
 636   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
 637   if (aStartShapePoint.get())
 638     std::cout << "Start point: [" << aStartShapePoint->x() << ", " <<
 639                                        aStartShapePoint->y() << "]" << std::endl;
 640   std::cout << "1st point:   [" << aStartArcPoint->x() << ", " <<
 641                                    aStartArcPoint->y() << "]" << std::endl;
 642   if (aLastShapePoint.get())
 643     std::cout << "2st point:   [" << aLastShapePoint->x() << ", " <<
 644                                      aLastShapePoint->y() << "]" << std::endl;
 645   std::cout << "End point:   [" << aLastArcPoint->x() << ", " <<
 646                                    aLastArcPoint->y() << "]" << std::endl;
 647 #endif
 648
 649   bool isStartPoint = !aStartShapePoint.get() || aStartArcPoint->isEqual(aStartShapePoint);
 650   bool isLastPoint = !aLastShapePoint.get() || aLastArcPoint->isEqual(aLastShapePoint);
 651   if (isStartPoint || isLastPoint) {
 652     // result is one arc: changed existing arc
 653     std::string aModifiedAttribute = isStartPoint ? SketchPlugin_Arc::START_ID()
 654                                                   : SketchPlugin_Arc::END_ID();
 655     std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 656     if (aStartShapePoint.get() && aLastShapePoint.get())
 657       aPoint = isStartPoint ? aLastShapePoint : aStartShapePoint;
 658     else
 659       aPoint = aStartShapePoint.get() ? aStartShapePoint : aLastShapePoint;
 660
 661     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aPoint);
 662     theModifiedAttributes.insert(
 663       std::make_pair(aBaseFeature->attribute(aModifiedAttribute), AttributePtr()));
 664
 665     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 666                                (aBaseFeature->attribute(aModifiedAttribute)));
 667   }
 668   else {
 669     // result is two arcs: start arc point - start shape point, last shape point - last arc point
 670     // create second arc
 671     FeaturePtr anArcFeature = createArcFeature(aBaseFeature, aLastShapePoint, aLastArcPoint);
 672     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 673                                (anArcFeature->attribute(SketchPlugin_Arc::START_ID())));
 674
 675     std::string aModifiedAttribute = SketchPlugin_Arc::END_ID();
 676     theModifiedAttributes.insert(
 677       std::make_pair(aBaseFeature->attribute(aModifiedAttribute),
 678                                    anArcFeature->attribute(SketchPlugin_Arc::END_ID())));
 679
 680     // modify base arc
 681     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aStartShapePoint);
 682
 683     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 684                                (aBaseFeature->attribute(aModifiedAttribute)));
 685
 686     // equal Radius constraint for arcs
 687     createConstraintForObjects(SketchPlugin_ConstraintEqual::ID(),
 688                                getFeatureResult(aBaseFeature),
 689                                getFeatureResult(anArcFeature));
 690     // coincident centers constraint
 691     createConstraint(SketchPlugin_ConstraintCoincidence::ID(),
 692                      aBaseFeature->attribute(SketchPlugin_Arc::CENTER_ID()),
 693                      anArcFeature->attribute(SketchPlugin_Arc::CENTER_ID()));
 694   }
 695 }
 696
 697 void SketchPlugin_Trim::trimCircle(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 698                                    const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 699                                    std::set<AttributePoint2DPtr>& thePoints,
 700                                    std::set<FeaturePtr>& theCreatedFeatures,
 701                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 702 {
 703   // Check the base objects are initialized.
 704   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 705                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 706   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 707   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 708
 709   /// points of trim
 710   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 711   getFeaturePoints(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 712
 713   /// trim feature
 714   FeaturePtr anArcFeature = createArcFeature(aBaseFeature, theStartShapePoint, theLastShapePoint);
 715
 716   theModifiedAttributes.insert(
 717     std::make_pair(aBaseFeature->attribute(SketchPlugin_Circle::CENTER_ID()),
 718                    anArcFeature->attribute(SketchPlugin_Arc::CENTER_ID())));
 719
 720   thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 721                              (anArcFeature->attribute(SketchPlugin_Arc::START_ID())));
 722   thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 723                              (anArcFeature->attribute(SketchPlugin_Arc::END_ID())));
 724 }
 725
 726 void SketchPlugin_Trim::arrangePointsOnLine(const AttributePoint2DPtr& theStartPointAttr,
 727                                             const AttributePoint2DPtr& theEndPointAttr,
 728                                             std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
 729                                             std::shared_ptr<GeomAPI_Pnt2d>& theLastPoint) const
 730 {
 731   if (!theFirstPoint.get() || !theLastPoint.get())
 732     return;
 733
 734   // if first point is closer to last point, swap first and last values
 735   if (theStartPointAttr->pnt()->distance(theFirstPoint) >
 736       theStartPointAttr->pnt()->distance(theLastPoint)) {
 737     std::shared_ptr<GeomAPI_Pnt2d> aTmpPoint = theFirstPoint;
 738     theFirstPoint = theLastPoint;
 739     theLastPoint = aTmpPoint;
 740   }
 741 }
 742
 743 void SketchPlugin_Trim::arrangePointsOnArc(const FeaturePtr& theArc,
 744                                   const AttributePoint2DPtr& theStartPointAttr,
 745                                   const AttributePoint2DPtr& theEndPointAttr,
 746                                   std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
 747                                   std::shared_ptr<GeomAPI_Pnt2d>& theSecondPoint) const
 748 {
 749   if (!theFirstPoint.get() || !theSecondPoint.get())
 750     return;
 751
 752   static const double anAngleTol = 1.e-12;
 753
 754   std::shared_ptr<GeomAPI_Pnt2d> aCenter = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 755       theArc->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
 756   bool isReversed = theArc->boolean(SketchPlugin_Arc::INVERSED_ID())->value();
 757
 758   // collect directions to each point
 759   std::shared_ptr<GeomAPI_Dir2d> aStartDir(
 760       new GeomAPI_Dir2d(theStartPointAttr->pnt()->xy()->decreased(aCenter->xy())));
 761   std::shared_ptr<GeomAPI_Dir2d> aFirstPtDir(
 762       new GeomAPI_Dir2d(theFirstPoint->xy()->decreased(aCenter->xy())));
 763   std::shared_ptr<GeomAPI_Dir2d> aSecondPtDir(
 764       new GeomAPI_Dir2d(theSecondPoint->xy()->decreased(aCenter->xy())));
 765
 766   // sort points by their angular values
 767   double aFirstPtAngle = aStartDir->angle(aFirstPtDir);
 768   double aSecondPtAngle = aStartDir->angle(aSecondPtDir);
 769   double aPeriod = isReversed ? -2.0 * PI : 2.0 * PI;
 770   if (fabs(aFirstPtAngle) > anAngleTol && isReversed == (aFirstPtAngle > 0.))
 771     aFirstPtAngle += aPeriod;
 772   if (fabs(aSecondPtAngle) > anAngleTol && isReversed == (aSecondPtAngle > 0.))
 773     aSecondPtAngle += aPeriod;
 774
 775   if (fabs(aFirstPtAngle) > fabs(aSecondPtAngle)) {
 776     std::shared_ptr<GeomAPI_Pnt2d> aTmpPoint = theFirstPoint;
 777     theFirstPoint = theSecondPoint;
 778     theSecondPoint = aTmpPoint;
 779   }
 780 }
 781
 782 void SketchPlugin_Trim::fillPointAttribute(const AttributePtr& theModifiedAttribute,
 783                                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
 784 {
 785   std::string anAttributeType = theModifiedAttribute->attributeType();
 786   if (anAttributeType == GeomDataAPI_Point2D::typeId()) {
 787     AttributePoint2DPtr aModifiedAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 788                                               theModifiedAttribute);
 789     aModifiedAttribute->setValue(thePoint);
 790
 791 #ifdef DEBUG_TRIM
 792     std::cout << "<fillPointAttribute> => Pnt2d - [" << thePoint->x() << ", "
 793               << thePoint->y() << "]" << std::endl;
 794 #endif
 795   }
 796 }
 797
 798
 799 void SketchPlugin_Trim::fillAttribute(const AttributePtr& theModifiedAttribute,
 800                                       const AttributePtr& theSourceAttribute)
 801 {
 802   std::string anAttributeType = theModifiedAttribute->attributeType();
 803   if (anAttributeType == GeomDataAPI_Point2D::typeId()) {
 804     AttributePoint2DPtr aModifiedAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 805                                               theModifiedAttribute);
 806     AttributePoint2DPtr aSourceAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 807                                               theSourceAttribute);
 808
 809     if (aModifiedAttribute.get() && aSourceAttribute.get())
 810       aModifiedAttribute->setValue(aSourceAttribute->pnt());
 811   }
 812   else if (anAttributeType == ModelAPI_AttributeBoolean::typeId()) {
 813     AttributeBooleanPtr aModifiedAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
 814                                               theModifiedAttribute);
 815     AttributeBooleanPtr aSourceAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
 816                                               theSourceAttribute);
 817
 818     if (aModifiedAttribute.get() && aSourceAttribute.get())
 819       aModifiedAttribute->setValue(aSourceAttribute->value());
 820   }
 821   else if (anAttributeType == ModelAPI_AttributeRefAttr::typeId()) {
 822     AttributeRefAttrPtr aRefAttributeToFill = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 823                                                                              theModifiedAttribute);
 824     AttributeRefAttrPtr aSourceRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 825                                          theSourceAttribute);
 826     if (!aSourceRefAttr.get())
 827       aRefAttributeToFill->setAttr(theSourceAttribute);
 828     else {
 829       if (aSourceRefAttr->isObject())
 830         aRefAttributeToFill->setObject(aSourceRefAttr->object());
 831       else
 832         aRefAttributeToFill->setAttr(aSourceRefAttr->attr());
 833     }
 834   }
 835 }
 836
 837 FeaturePtr SketchPlugin_Trim::createLineFeature(const FeaturePtr& theBaseFeature,
 838                                         const std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
 839                                         const std::shared_ptr<GeomAPI_Pnt2d>& theSecondPoint)
 840 {
 841   FeaturePtr aFeature;
 842   SketchPlugin_Sketch* aSketch = sketch();
 843   if (!aSketch || !theBaseFeature.get())
 844     return aFeature;
 845
 846   aFeature = aSketch->addFeature(SketchPlugin_Line::ID());
 847
 848   fillPointAttribute(aFeature->attribute(SketchPlugin_Line::START_ID()), theFirstPoint);
 849   fillPointAttribute(aFeature->attribute(SketchPlugin_Line::END_ID()), theSecondPoint);
 850
 851   fillAttribute(aFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()),
 852                 theBaseFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()));
 853
 854   aFeature->execute(); // to obtain result
 855
 856   return aFeature;
 857 }
 858
 859
 860 FeaturePtr SketchPlugin_Trim::createArcFeature(const FeaturePtr& theBaseFeature,
 861                                                const std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
 862                                                const std::shared_ptr<GeomAPI_Pnt2d>& theSecondPoint)
 863 {
 864   FeaturePtr aFeature;
 865   SketchPlugin_Sketch* aSketch = sketch();
 866   if (!aSketch || !theBaseFeature.get())
 867     return aFeature;
 868
 869   std::string aCenterAttributeId;
 870   if (theBaseFeature->getKind() == SketchPlugin_Arc::ID())
 871     aCenterAttributeId = SketchPlugin_Arc::CENTER_ID();
 872   else if (theBaseFeature->getKind() == SketchPlugin_Circle::ID())
 873     aCenterAttributeId = SketchPlugin_Circle::CENTER_ID();
 874
 875   if (aCenterAttributeId.empty())
 876     return aFeature;
 877
 878   aFeature = aSketch->addFeature(SketchPlugin_Arc::ID());
 879   // update fillet arc: make the arc correct for sure, so, it is not needed to process
 880   // the "attribute updated"
 881   // by arc; moreover, it may cause cyclicity in hte mechanism of updater
 882   bool aWasBlocked = aFeature->data()->blockSendAttributeUpdated(true);
 883
 884   aFeature->string(SketchPlugin_Arc::ARC_TYPE())->setValue(
 885                 SketchPlugin_Arc::ARC_TYPE_CENTER_START_END());
 886
 887   fillAttribute(aFeature->attribute(SketchPlugin_Arc::CENTER_ID()),
 888                 theBaseFeature->attribute(aCenterAttributeId));
 889   fillPointAttribute(aFeature->attribute(SketchPlugin_Arc::START_ID()), theFirstPoint);
 890   fillPointAttribute(aFeature->attribute(SketchPlugin_Arc::END_ID()), theSecondPoint);
 891
 892   fillAttribute(aFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()),
 893                 theBaseFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()));
 894
 895   /// fill referersed state of created arc as it is on the base arc
 896   if (theBaseFeature->getKind() == SketchPlugin_Arc::ID()) {
 897     bool aReversed = theBaseFeature->boolean(SketchPlugin_Arc::INVERSED_ID())->value();
 898     aFeature->boolean(SketchPlugin_Arc::INVERSED_ID())->setValue(aReversed);
 899   }
 900   aFeature->execute(); // to obtain result
 901   aFeature->data()->blockSendAttributeUpdated(aWasBlocked);
 902
 903   return aFeature;
 904 }
 905
 906 FeaturePtr SketchPlugin_Trim::createConstraint(const std::string& theConstraintId,
 907                                                const AttributePtr& theFirstAttribute,
 908                                                const AttributePtr& theSecondAttribute)
 909 {
 910   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
 911   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 912                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 913   aRefAttr->setAttr(theFirstAttribute);
 914
 915   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 916                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 917   aRefAttr->setAttr(theSecondAttribute);
 918
 919 #ifdef DEBUG_TRIM
 920   std::cout << "<createConstraint to attribute> :"
 921             << "first attribute - " << theFirstAttribute->id()
 922             << "second attribute - " << theSecondAttribute->id()
 923             << std::endl;
 924 #endif
 925
 926   return aConstraint;
 927 }
 928
 929 FeaturePtr SketchPlugin_Trim::createConstraintToObject(const std::string& theConstraintId,
 930                                                const AttributePtr& theFirstAttribute,
 931                                                const ObjectPtr& theSecondObject)
 932 {
 933   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
 934   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 935                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 936   aRefAttr->setAttr(theFirstAttribute);
 937
 938   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 939                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 940   aRefAttr->setObject(theSecondObject);
 941
 942 #ifdef DEBUG_TRIM
 943   std::cout << "<createConstraint to attribute> :"
 944             << "first attribute - " << theFirstAttribute->id()
 945             << "second object - " << ModelAPI_Feature::feature(theSecondObject)->getKind()
 946             << std::endl;
 947 #endif
 948
 949   return aConstraint;
 950 }
 951
 952 FeaturePtr SketchPlugin_Trim::createConstraintForObjects(
 953                                                     const std::string& theConstraintId,
 954                                                     const ObjectPtr& theFirstObject,
 955                                                     const ObjectPtr& theSecondObject)
 956 {
 957   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
 958   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 959                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 960   aRefAttr->setObject(theFirstObject);
 961
 962   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 963                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 964   aRefAttr->setObject(theSecondObject);
 965
 966   return aConstraint;
 967 }
 968
 969 std::shared_ptr<ModelAPI_Result> SketchPlugin_Trim::getFeatureResult(
 970                                     const std::shared_ptr<ModelAPI_Feature>& theFeature)
 971 {
 972   std::shared_ptr<ModelAPI_Result> aResult;
 973
 974   std::string aFeatureKind = theFeature->getKind();
 975   if (aFeatureKind == SketchPlugin_Line::ID())
 976     aResult = theFeature->firstResult();
 977   else if (aFeatureKind == SketchPlugin_Arc::ID())
 978     aResult = theFeature->lastResult();
 979   else if (aFeatureKind == SketchPlugin_Circle::ID())
 980     aResult = theFeature->lastResult();
 981
 982   return aResult;
 983 }
 984
 985 //********************************************************************
 986 bool SketchPlugin_Trim::useGraphicIntersection() const
 987 {
 988   return true;
 989 }
 990
 991 //********************************************************************
 992 void SketchPlugin_Trim::fillObjectShapes(const ObjectPtr& theObject)
 993 {
 994   PointToRefsMap aPointsInfo;
 995
 996   std::set<std::shared_ptr<GeomAPI_Shape> > aShapes;
 997   std::map<std::shared_ptr<GeomAPI_Pnt>,
 998                            std::list< AttributePoint2DPtr > > aPointToAttributes;
 999   std::map<std::shared_ptr<GeomAPI_Pnt>,
1000                            std::list< ObjectPtr > > aPointToObjects;
1001
1002   std::set<AttributePoint2DPtr > aRefAttributes;
1003   // current feature
1004   FeaturePtr aFeature = ModelAPI_Feature::feature(theObject);
1005   std::set<ResultPtr> anEdgeShapes;
1006   // edges on feature
1007   ModelAPI_Tools::shapesOfType(aFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
1008   if (!anEdgeShapes.empty()) {
1009     GeomShapePtr aFeatureShape = (*anEdgeShapes.begin())->shape();
1010
1011     // coincidences to the feature
1012     ModelGeomAlgo_Point2D::getPointsOfReference(aFeature, SketchPlugin_ConstraintCoincidence::ID(),
1013                          aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
1014     // layed on feature coincidences to divide it on several shapes
1015     SketchPlugin_Sketch* aSketch = sketch();
1016     std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
1017     std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
1018         aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
1019     std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1020         aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
1021     std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1022         aData->attribute(SketchPlugin_Sketch::NORM_ID()));
1023     std::shared_ptr<GeomAPI_Dir> aY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
1024
1025     ModelGeomAlgo_Point2D::getPointsInsideShape(aFeatureShape, aRefAttributes, aC->pnt(),
1026                                                 aX->dir(), aY, aPointsInfo);
1027
1028     // intersection points
1029     if (useGraphicIntersection()) {
1030       std::list<FeaturePtr> aFeatures;
1031       for (int i = 0; i < aSketch->numberOfSubs(); i++) {
1032         FeaturePtr aFeature = aSketch->subFeature(i);
1033         if (aFeature.get())
1034           aFeatures.push_back(aFeature);
1035       }
1036       ModelGeomAlgo_Point2D::getPointsIntersectedShape(aFeature, aFeatures, aPointsInfo);
1037     }
1038     GeomAlgoAPI_ShapeTools::splitShape(aFeatureShape, aPointsInfo, aShapes);
1039   }
1040   myObjectToPoints[theObject] = aPointsInfo;
1041   myCashedShapes[theObject] = aShapes;
1042 }
1043
1044 //********************************************************************
1045 void SketchPlugin_Trim::attributeChanged(const std::string& theID)
1046 {
1047   //data()->addAttribute(SketchPlugin_Trim::BASE_OBJECT(), ModelAPI_AttributeReference::typeId());
1048   if (theID == SketchPlugin_Trim::BASE_OBJECT()) {
1049     bool isValidAttribute = false;
1050     // feature for trim
1051     AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
1052                                              data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
1053     ObjectPtr aBaseObject = aBaseObjectAttr->value();
1054     if (aBaseObject.get()) {
1055       FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
1056       // point on feature
1057       AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1058                                                data()->attribute(ENTITY_POINT()));
1059       std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1060       std::shared_ptr<GeomAPI_Pnt> anAttributePnt = sketch()->to3D(anAttributePnt2d->x(),
1061                                                                    anAttributePnt2d->y());
1062
1063       if (myCashedShapes.find(aBaseObject) == myCashedShapes.end())
1064         fillObjectShapes(aBaseObject);
1065
1066       const std::set<GeomShapePtr>& aShapes = myCashedShapes[aBaseObject];
1067       isValidAttribute = !aShapes.empty();
1068
1069       if (!isValidAttribute) {
1070         bool aWasBlocked = data()->blockSendAttributeUpdated(true);
1071         aBaseObjectAttr->setValue(ObjectPtr());
1072         data()->blockSendAttributeUpdated(aWasBlocked);
1073       }
1074     }
1075   }
1076 }