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