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 static const std::string OPERATION_REMOVE_FEATURE_COLOR() { return "255, 174, 201"; }
  60
  61 SketchPlugin_Trim::SketchPlugin_Trim()
  62 {
  63 }
  64
  65 void SketchPlugin_Trim::initAttributes()
  66 {
  67   data()->addAttribute(SketchPlugin_Trim::BASE_OBJECT(), ModelAPI_AttributeReference::typeId());
  68   data()->addAttribute(ENTITY_POINT(), GeomDataAPI_Point2D::typeId());
  69 }
  70
  71 void SketchPlugin_Trim::findShapePoints(std::shared_ptr<GeomAPI_Pnt>& aStartPoint,
  72                                         std::shared_ptr<GeomAPI_Pnt>& aLastPoint)
  73 {
  74   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
  75                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
  76   ObjectPtr aBaseObject = aBaseObjectAttr->value();
  77
  78   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
  79                                                             data()->attribute(ENTITY_POINT()));
  80   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
  81   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = sketch()->to3D(anAttributePnt2d->x(),
  82                                                                anAttributePnt2d->y());
  83
  84   if (myCashedShapes.find(aBaseObject) == myCashedShapes.end())
  85     fillObjectShapes(aBaseObject);
  86
  87   const std::set<GeomShapePtr>& aShapes = myCashedShapes[aBaseObject];
  88   if (!aShapes.empty()) {
  89     std::set<GeomShapePtr>::const_iterator anIt = aShapes.begin(), aLast = aShapes.end();
  90     for (; anIt != aLast; anIt++) {
  91       GeomShapePtr aBaseShape = *anIt;
  92       std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
  93       if (ModelGeomAlgo_Point2D::isPointOnEdge(aBaseShape, anAttributePnt, aProjectedPoint)) {
  94
  95         if (aBaseShape->shapeType() == GeomAPI_Shape::EDGE) {
  96           std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aBaseShape));
  97           aStartPoint = anEdge->lastPoint();
  98           aLastPoint = anEdge->firstPoint();
  99         }
 100       }
 101     }
 102   }
 103 #ifdef DEBUG_TRIM
 104   std::cout << "<findShapePoints> => "
 105             << "Start Point: ["
 106             << aStartPoint->x() << ", " << aStartPoint->y() << ", " << aStartPoint->z() << "]"
 107             << "Last Point: ["
 108             << aLastPoint->x() << ", " << aLastPoint->y() << ", " << aLastPoint->z() << "]"
 109             << std::endl;
 110 #endif
 111 }
 112
 113 std::shared_ptr<GeomAPI_Pnt2d> SketchPlugin_Trim::convertPoint(
 114                                                    const std::shared_ptr<GeomAPI_Pnt>& thePoint)
 115 {
 116   std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 117
 118   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 119                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 120   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 121   if (myObjectToPoints.find(aBaseObject) == myObjectToPoints.end())
 122     return aPoint;
 123
 124   bool aFound = false;
 125   const PointToRefsMap& aRefsMap = myObjectToPoints.at(aBaseObject);
 126   for (PointToRefsMap::const_iterator aPointIt = aRefsMap.begin();
 127        aPointIt != aRefsMap.end() && !aFound; aPointIt++) {
 128     if (aPointIt->first->isEqual(thePoint)) {
 129       const std::pair<std::list<AttributePoint2DPtr >,
 130                std::list<ObjectPtr > >& anInfo = aPointIt->second;
 131       const std::list<AttributePoint2DPtr >& anAttributes = anInfo.first;
 132       if (!anAttributes.empty()) {
 133         aPoint = anAttributes.front()->pnt();
 134         aFound = true;
 135       }
 136       else {
 137         std::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
 138         aPoint = thePoint->to2D(aPlane);
 139         aFound = true;
 140       }
 141     }
 142   }
 143   if (!aFound) {
 144     // returns an end of the shape to define direction of split if feature's attribute participates
 145     std::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
 146     aPoint = thePoint->to2D(aPlane);
 147   }
 148   return aPoint;
 149 }
 150
 151 void SketchPlugin_Trim::execute()
 152 {
 153 #ifdef DEBUG_TRIM
 154   std::cout << "SketchPlugin_Trim::execute" << std::endl;
 155 #endif
 156
 157   SketchPlugin_Sketch* aSketch = sketch();
 158   if (!aSketch)
 159     return;
 160
 161   // Check the base objects are initialized.
 162   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 163                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 164   if(!aBaseObjectAttr->isInitialized()) {
 165     setError("Error: Base object is not initialized.");
 166     return;
 167   }
 168   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 169   if (!aBaseObject.get())
 170     return;
 171   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 172
 173   /// points of trim
 174   std::shared_ptr<GeomAPI_Pnt> aStartShapePoint, aLastShapePoint;
 175   findShapePoints(aStartShapePoint, aLastShapePoint);
 176   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint2d = convertPoint(aStartShapePoint);
 177
 178   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint2d = convertPoint(aLastShapePoint);
 179
 180   std::set<FeaturePtr> aFeaturesToDelete;
 181   getConstraints(aFeaturesToDelete);
 182
 183   std::map<AttributePtr, std::list<AttributePtr> > aBaseRefAttributes;
 184   std::list<AttributePtr> aRefsToFeature;
 185   getRefAttributes(aBaseFeature, aBaseRefAttributes, aRefsToFeature);
 186
 187
 188   // coincidence to result points
 189   // find coincidences to the base object, it should be used when attribute is found
 190   // in myObjectToPoints
 191   std::map<AttributePtr, FeaturePtr> aCoincidencesToBaseFeature;
 192   getCoincidencesToObject(aBaseObject, aCoincidencesToBaseFeature);
 193
 194   std::set<AttributePoint2DPtr> aFurtherCoincidences;
 195   std::set<std::pair<AttributePtr, AttributePtr>> aModifiedAttributes;
 196   const std::string& aKind = aBaseFeature->getKind();
 197   FeaturePtr aReplacingFeature;
 198   if (aKind == SketchPlugin_Circle::ID()) {
 199     aReplacingFeature = trimCircle(aStartShapePoint2d, aLastShapePoint2d,
 200                aFurtherCoincidences, aModifiedAttributes);
 201
 202     aFeaturesToDelete.insert(aBaseFeature);
 203     // as circle is removed, temporary fill this attribute
 204     aBaseObjectAttr->setObject(ResultPtr());
 205   }
 206   else if (aKind == SketchPlugin_Line::ID()) {
 207     trimLine(aStartShapePoint2d, aLastShapePoint2d,
 208              aFurtherCoincidences, aModifiedAttributes);
 209   }
 210   else if (aKind == SketchPlugin_Arc::ID()) {
 211     trimArc(aStartShapePoint2d, aLastShapePoint2d,
 212             aFurtherCoincidences, aModifiedAttributes);
 213   }
 214
 215   //
 216   const PointToRefsMap& aRefsMap = myObjectToPoints.at(aBaseObject);
 217   std::set<AttributePoint2DPtr>::const_iterator anIt = aFurtherCoincidences.begin(),
 218                                                 aLast = aFurtherCoincidences.end();
 219   for (; anIt != aLast; anIt++) {
 220     AttributePoint2DPtr aPointAttribute = (*anIt);
 221     std::shared_ptr<GeomAPI_Pnt2d> aPoint2d = aPointAttribute->pnt();
 222
 223     std::shared_ptr<GeomAPI_Pnt> aPoint;
 224     if (aStartShapePoint2d.get() && aPoint2d->isEqual(aStartShapePoint2d))
 225       aPoint = aStartShapePoint;
 226     else if (aLastShapePoint2d.get() && aPoint2d->isEqual(aLastShapePoint2d))
 227       aPoint = aLastShapePoint;
 228
 229     if (!aPoint.get())
 230       continue;
 231
 232     std::pair<std::list<AttributePoint2DPtr >, std::list<ObjectPtr > > anInfo;
 233     for (PointToRefsMap::const_iterator aRefIt = aRefsMap.begin(); aRefIt != aRefsMap.end();
 234          aRefIt++)
 235     {
 236       if (aRefIt->first->isEqual(aPoint)) {
 237         anInfo = aRefIt->second;
 238         break;
 239       }
 240     }
 241     const std::list<AttributePoint2DPtr >& anAttributes = anInfo.first;
 242     for (std::list<AttributePoint2DPtr>::const_iterator anAttrIt = anAttributes.begin();
 243           anAttrIt != anAttributes.end(); anAttrIt++) {
 244       AttributePtr anAttribute = *anAttrIt;
 245       if (aCoincidencesToBaseFeature.find(anAttribute) != aCoincidencesToBaseFeature.end())
 246       {
 247         FeaturePtr anAttrFeature = aCoincidencesToBaseFeature.at(anAttribute);
 248         AttributePtr anOtherAttribute;
 249         if (std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 250            (anAttrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()))->attr() == anAttribute)
 251           anOtherAttribute = anAttrFeature->attribute(SketchPlugin_Constraint::ENTITY_B());
 252         else if (std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 253           (anAttrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()))->attr() == anAttribute)
 254           anOtherAttribute = anAttrFeature->attribute(SketchPlugin_Constraint::ENTITY_A());
 255         else
 256           continue;
 257         AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 258                                        (anOtherAttribute);
 259         if (aRefAttr.get())
 260           aRefAttr->setAttr(aPointAttribute);
 261       }
 262     }
 263
 264     const std::list<ObjectPtr>& anObjects = anInfo.second;
 265     for (std::list<ObjectPtr>::const_iterator anObjectIt = anObjects.begin();
 266       anObjectIt != anObjects.end(); anObjectIt++) {
 267       createConstraintToObject(SketchPlugin_ConstraintCoincidence::ID(), aPointAttribute,
 268                                *anObjectIt);
 269     }
 270   }
 271
 272   // move constraints from base feature to replacing feature: ignore coincidences to feature
 273   // if attributes of coincidence participated in split
 274   if (aReplacingFeature.get()) {
 275     ResultPtr aReplacingResult = getFeatureResult(aReplacingFeature);
 276     std::list<AttributePtr>::const_iterator anIt = aRefsToFeature.begin(),
 277                                             aLast = aRefsToFeature.end();
 278     for (; anIt != aLast; anIt++) {
 279       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anIt);
 280       if (!aRefAttr.get())
 281         continue;
 282       FeaturePtr anAttrFeature = ModelAPI_Feature::feature(aRefAttr->owner());
 283       if (anAttrFeature.get() &&
 284           anAttrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID())
 285       {
 286         if (anAttrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()) == aRefAttr ||
 287             anAttrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()) == aRefAttr)
 288           continue;
 289       }
 290       aRefAttr->setObject(aReplacingResult);
 291     }
 292   }
 293
 294   // Wait all constraints being created, then send update events
 295   static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
 296   bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
 297   if (isUpdateFlushed)
 298     Events_Loop::loop()->setFlushed(anUpdateEvent, false);
 299
 300   updateRefAttConstraints(aBaseRefAttributes, aModifiedAttributes, aFeaturesToDelete);
 301
 302   // delete constraints
 303 #ifdef DEBUG_TRIM
 304   std::cout << "remove features and references:" << std::endl;
 305   std::set<FeaturePtr>::const_iterator aDIt = aFeaturesToDelete.begin(),
 306                                        aDLast = aFeaturesToDelete.end();
 307   for (; aDIt != aDLast; aDIt++) {
 308     //std::cout << getFeatureInfo(*aDIt, false) << std::endl;
 309     //std::cout << std::endl;
 310   }
 311 #endif
 312   ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToDelete);
 313   Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_DELETED));
 314
 315   // Send events to update the sub-features by the solver.
 316   if(isUpdateFlushed) {
 317     Events_Loop::loop()->setFlushed(anUpdateEvent, true);
 318   }
 319
 320 #ifdef DEBUG_TRIM
 321   std::cout << "SketchPlugin_Trim::done" << std::endl;
 322 #endif
 323 }
 324
 325 bool SketchPlugin_Trim::isMacro() const
 326 {
 327   return true;
 328 }
 329
 330 AISObjectPtr SketchPlugin_Trim::getAISObject(AISObjectPtr thePrevious)
 331 {
 332   AISObjectPtr anAIS = thePrevious;
 333   // feature for trim
 334   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 335                                            data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 336   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 337   if (!aBaseObject.get())
 338     return AISObjectPtr();
 339   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 340
 341   // point on feature
 342   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 343                                            data()->attribute(ENTITY_POINT()));
 344   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
 345   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = sketch()->to3D(anAttributePnt2d->x(),
 346                                                                anAttributePnt2d->y());
 347
 348   if (myCashedShapes.find(aBaseObject) == myCashedShapes.end())
 349     fillObjectShapes(aBaseObject);
 350
 351   GeomShapePtr aBaseShape;
 352
 353   const std::set<GeomShapePtr>& aShapes = myCashedShapes[aBaseObject];
 354   if (!aShapes.empty()) {
 355     std::set<GeomShapePtr>::const_iterator anIt = aShapes.begin(), aLast = aShapes.end();
 356     for (; anIt != aLast; anIt++) {
 357       GeomShapePtr aShape = *anIt;
 358       std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
 359       if (ModelGeomAlgo_Point2D::isPointOnEdge(aShape, anAttributePnt, aProjectedPoint))
 360         aBaseShape = aShape;
 361     }
 362   }
 363
 364   if (aBaseShape.get()) {
 365     if (!anAIS)
 366       anAIS = AISObjectPtr(new GeomAPI_AISObject);
 367     anAIS->createShape(aBaseShape);
 368
 369     std::shared_ptr<ModelAPI_AttributeBoolean> anAuxiliaryAttr =
 370             aBaseFeature->data()->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID());
 371
 372     bool isConstruction = anAuxiliaryAttr.get() != NULL && anAuxiliaryAttr->value();
 373     std::vector<int> aColor;
 374           aColor = Config_PropManager::color("Visualization", "operation_remove_feature_color");
 375     double aWidth = SketchPlugin_SketchEntity::SKETCH_LINE_WIDTH();
 376     int aLineStyle = SketchPlugin_SketchEntity::SKETCH_LINE_STYLE();
 377     if (isConstruction) {
 378       aWidth = SketchPlugin_SketchEntity::SKETCH_LINE_WIDTH_AUXILIARY();
 379       aLineStyle = SketchPlugin_SketchEntity::SKETCH_LINE_STYLE_AUXILIARY();
 380     }
 381     anAIS->setColor(aColor[0], aColor[1], aColor[2]);
 382     // width is extened in several points in order to see this preview over highlight
 383     anAIS->setWidth(aWidth + 2);
 384     anAIS->setLineStyle(aLineStyle);
 385   }
 386   else
 387     anAIS = AISObjectPtr();
 388
 389   return anAIS;
 390 }
 391
 392 void SketchPlugin_Trim::getFeaturePoints(const FeaturePtr& theFeature,
 393                                          AttributePoint2DPtr& theStartPointAttr,
 394                                          AttributePoint2DPtr& theEndPointAttr)
 395 {
 396   std::string aFeatureKind = theFeature->getKind();
 397   std::string aStartAttributeName, anEndAttributeName;
 398   if (aFeatureKind == SketchPlugin_Line::ID()) {
 399     aStartAttributeName = SketchPlugin_Line::START_ID();
 400     anEndAttributeName = SketchPlugin_Line::END_ID();
 401   }
 402   else if (aFeatureKind == SketchPlugin_Arc::ID()) {
 403     aStartAttributeName = SketchPlugin_Arc::START_ID();
 404     anEndAttributeName = SketchPlugin_Arc::END_ID();
 405   }
 406   if (!aStartAttributeName.empty() && !anEndAttributeName.empty()) {
 407     theStartPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 408                                          theFeature->attribute(aStartAttributeName));
 409     theEndPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 410                                          theFeature->attribute(anEndAttributeName));
 411   }
 412 }
 413
 414 void SketchPlugin_Trim::getConstraints(std::set<FeaturePtr>& theFeaturesToDelete)
 415 {
 416   std::shared_ptr<ModelAPI_Data> aData = data();
 417
 418   // Check the base objects are initialized.
 419   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 420                                             aData->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 421   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 422   ResultPtr aBaseFeatureResult = getFeatureResult(aBaseFeature);
 423
 424   std::set<AttributePtr> aRefsList = aBaseFeatureResult->data()->refsToMe();
 425   std::set<AttributePtr> aFRefsList = aBaseFeature->data()->refsToMe();
 426   aRefsList.insert(aFRefsList.begin(), aFRefsList.end());
 427
 428   std::set<AttributePtr>::const_iterator aIt;
 429   for (aIt = aRefsList.cbegin(); aIt != aRefsList.cend(); ++aIt) {
 430     std::shared_ptr<ModelAPI_Attribute> aAttr = (*aIt);
 431     FeaturePtr aRefFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 432     std::string aRefFeatureKind = aRefFeature->getKind();
 433     if (aRefFeatureKind == SketchPlugin_ConstraintMirror::ID() ||
 434         aRefFeatureKind == SketchPlugin_MultiRotation::ID() ||
 435         aRefFeatureKind == SketchPlugin_MultiTranslation::ID() ||
 436         aRefFeatureKind == SketchPlugin_ConstraintMiddle::ID())
 437       theFeaturesToDelete.insert(aRefFeature);
 438   }
 439 }
 440
 441 void SketchPlugin_Trim::getRefAttributes(const FeaturePtr& theFeature,
 442                                     std::map<AttributePtr, std::list<AttributePtr> >& theRefs,
 443                                     std::list<AttributePtr>& theRefsToFeature)
 444 {
 445   theRefs.clear();
 446
 447   std::list<AttributePtr> aPointAttributes =
 448     theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 449   std::set<AttributePtr> aPointAttributesSet;
 450
 451   std::list<AttributePtr>::const_iterator aPIt =
 452     aPointAttributes.begin(), aPLast = aPointAttributes.end();
 453   for (; aPIt != aPLast; aPIt++)
 454     aPointAttributesSet.insert(*aPIt);
 455
 456   std::set<AttributePtr> aRefsAttributes = getFeatureResult(theFeature)->data()->refsToMe();
 457   std::set<AttributePtr> aFRefsList = theFeature->data()->refsToMe();
 458   aRefsAttributes.insert(aFRefsList.begin(), aFRefsList.end());
 459
 460   std::set<AttributePtr>::const_iterator aIt;
 461   for (aIt = aRefsAttributes.cbegin(); aIt != aRefsAttributes.cend(); ++aIt) {
 462     AttributePtr anAttr = (*aIt);
 463     FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttr->owner());
 464     if (anAttrFeature.get() != this &&
 465         anAttr.get() && anAttr->attributeType() == ModelAPI_AttributeRefAttr::typeId()) {
 466       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttr);
 467       if (!aRefAttr->isObject()) { /// find attributes referenced to feature point attributes
 468         AttributePtr anAttrInRef = aRefAttr->attr();
 469         if (anAttrInRef.get() &&
 470             aPointAttributesSet.find(anAttrInRef) != aPointAttributesSet.end()) {
 471           if (theRefs.find(anAttrInRef) != theRefs.end())
 472             theRefs[anAttrInRef].push_back(aRefAttr);
 473           else {
 474             std::list<AttributePtr> anAttrList;
 475             anAttrList.push_back(aRefAttr);
 476             theRefs[anAttrInRef] = anAttrList;
 477           }
 478         }
 479       }
 480       else { /// find attributes referenced to feature itself
 481         theRefsToFeature.push_back(anAttr);
 482       }
 483     }
 484   }
 485 }
 486
 487 void SketchPlugin_Trim::getCoincidencesToObject(const ObjectPtr& theObject,
 488                    std::map<AttributePtr, FeaturePtr>& theCoincidencesToBaseFeature)
 489 {
 490   const std::set<AttributePtr>& aRefsList = theObject->data()->refsToMe();
 491   std::set<AttributePtr>::const_iterator aIt;
 492   for (aIt = aRefsList.cbegin(); aIt != aRefsList.cend(); ++aIt) {
 493     std::shared_ptr<ModelAPI_Attribute> aAttr = (*aIt);
 494     FeaturePtr aRefFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 495     if (aRefFeature->getKind() != SketchPlugin_ConstraintCoincidence::ID())
 496       continue;
 497     AttributePtr anAttribute;
 498     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 499                                   (aRefFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 500     if (aRefAttr->isObject() && aRefAttr->object() == theObject)
 501     {
 502       anAttribute = aRefFeature->attribute(SketchPlugin_Constraint::ENTITY_B());
 503     }
 504     else {
 505       aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 506                                     (aRefFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 507       if (aRefAttr->isObject() && aRefAttr->object() == theObject)
 508       {
 509         anAttribute = aRefFeature->attribute(SketchPlugin_Constraint::ENTITY_A());
 510       }
 511       if (anAttribute.get())
 512       {
 513         aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 514                                     (anAttribute);
 515         anAttribute = aRefAttr->attr();
 516         if (anAttribute.get())
 517           theCoincidencesToBaseFeature[anAttribute] = aRefFeature;
 518       }
 519     }
 520   }
 521 }
 522
 523 void SketchPlugin_Trim::updateRefAttConstraints(
 524                     const std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes,
 525                     const std::set<std::pair<AttributePtr, AttributePtr> >& theModifiedAttributes,
 526                     std::set<FeaturePtr>& theFeaturesToDelete)
 527 {
 528 #ifdef DEBUG_TRIM
 529   std::cout << "SketchPlugin_Trim::updateRefAttConstraints" << std::endl;
 530 #endif
 531
 532   std::set<std::pair<AttributePtr, AttributePtr> >::const_iterator
 533     anIt = theModifiedAttributes.begin(),  aLast = theModifiedAttributes.end();
 534   for (; anIt != aLast; anIt++) {
 535     AttributePtr anAttribute = anIt->first;
 536
 537     /// not found in references
 538     if (theBaseRefAttributes.find(anAttribute) == theBaseRefAttributes.end())
 539       continue;
 540     std::list<AttributePtr> aRefAttributes = theBaseRefAttributes.at(anAttribute);
 541     std::list<AttributePtr>::const_iterator aRefIt = aRefAttributes.begin(),
 542                                             aRLast = aRefAttributes.end();
 543
 544     AttributePtr aNewAttribute = anIt->second;
 545     for (; aRefIt != aRLast; aRefIt++) {
 546       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*aRefIt);
 547       if (aRefAttr.get()) {
 548         if (aNewAttribute.get())
 549           aRefAttr->setAttr(aNewAttribute);
 550         else
 551           theFeaturesToDelete.insert(ModelAPI_Feature::feature(aRefAttr->owner()));
 552 #ifdef DEBUG_TRIM
 553         //FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->owner());
 554         //std::cout << " -" << getFeatureInfo(aFeature) << std::endl;
 555 #endif
 556       }
 557     }
 558   }
 559 }
 560
 561 void SketchPlugin_Trim::trimLine(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 562                                  const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 563                                  std::set<AttributePoint2DPtr>& thePoints,
 564                   std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 565 {
 566   // Check the base objects are initialized.
 567   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 568                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 569   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 570   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 571
 572   /// points of trim
 573   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 574   getFeaturePoints(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 575
 576   std::shared_ptr<GeomAPI_Pnt2d> aStartFeaturePoint = aStartPointAttrOfBase->pnt();
 577   std::shared_ptr<GeomAPI_Pnt2d> aLastFeaturePoint = anEndPointAttrOfBase->pnt();
 578
 579   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint = theStartShapePoint;
 580   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint = theLastShapePoint;
 581   arrangePointsOnLine(aStartPointAttrOfBase, anEndPointAttrOfBase,
 582                       aStartShapePoint, aLastShapePoint);
 583 #ifdef DEBUG_TRIM
 584   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
 585   if (aStartShapePoint.get())
 586     std::cout << "Start point: [" << aStartShapePoint->x() << ", " <<
 587                                        aStartShapePoint->y() << "]" << std::endl;
 588   std::cout << "1st point:   [" << aStartFeaturePoint->x() << ", " <<
 589                                    aStartFeaturePoint->y() << "]" << std::endl;
 590   if (aLastShapePoint.get())
 591     std::cout << "2st point:   [" << aLastShapePoint->x() << ", " <<
 592                                      aLastShapePoint->y() << "]" << std::endl;
 593   std::cout << "End point:   [" << aLastFeaturePoint->x() << ", " <<
 594                                    aLastFeaturePoint->y() << "]" << std::endl;
 595 #endif
 596
 597   bool isStartPoint = !aStartShapePoint.get() || aStartFeaturePoint->isEqual(aStartShapePoint);
 598   bool isLastPoint = !aLastShapePoint.get() || aLastFeaturePoint->isEqual(aLastShapePoint);
 599   if (isStartPoint || isLastPoint) {
 600     // result is one line: changed existing line
 601     std::string aModifiedAttribute = isStartPoint ? SketchPlugin_Line::START_ID()
 602                                                   : SketchPlugin_Line::END_ID();
 603     std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 604     if (aStartShapePoint.get() && aLastShapePoint.get())
 605       aPoint = isStartPoint ? aLastShapePoint : aStartShapePoint;
 606     else
 607       aPoint = aStartShapePoint.get() ? aStartShapePoint : aLastShapePoint;
 608
 609     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aPoint);
 610     theModifiedAttributes.insert(
 611       std::make_pair(aBaseFeature->attribute(aModifiedAttribute), AttributePtr()));
 612
 613     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 614                                (aBaseFeature->attribute(aModifiedAttribute)));
 615   }
 616   else {
 617     // result is two lines: start line point - start shape point, last shape point - last line point
 618     // create second line
 619     FeaturePtr anNewFeature = createLineFeature(aBaseFeature, aLastShapePoint, aLastFeaturePoint);
 620     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 621                                (anNewFeature->attribute(SketchPlugin_Line::START_ID())));
 622
 623     std::string aModifiedAttribute = SketchPlugin_Line::END_ID();
 624     theModifiedAttributes.insert(
 625       std::make_pair(aBaseFeature->attribute(aModifiedAttribute),
 626                                    anNewFeature->attribute(SketchPlugin_Line::END_ID())));
 627
 628     // modify base arc
 629     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aStartShapePoint);
 630
 631     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 632                                (aBaseFeature->attribute(aModifiedAttribute)));
 633
 634     // Collinear constraint for lines
 635     createConstraintForObjects(SketchPlugin_ConstraintCollinear::ID(),
 636                                getFeatureResult(aBaseFeature),
 637                                getFeatureResult(anNewFeature));
 638
 639   }
 640 }
 641
 642 void SketchPlugin_Trim::trimArc(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 643                                 const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 644                                 std::set<AttributePoint2DPtr>& thePoints,
 645                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 646 {
 647   // Check the base objects are initialized.
 648   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 649                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 650   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 651   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 652
 653   /// points of trim
 654   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 655   getFeaturePoints(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 656
 657   std::shared_ptr<GeomAPI_Pnt2d> aStartArcPoint = aStartPointAttrOfBase->pnt();
 658   std::shared_ptr<GeomAPI_Pnt2d> aLastArcPoint = anEndPointAttrOfBase->pnt();
 659
 660   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint = theStartShapePoint;
 661   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint = theLastShapePoint;
 662   arrangePointsOnArc(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase,
 663                      aStartShapePoint, aLastShapePoint);
 664 #ifdef DEBUG_TRIM
 665   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
 666   if (aStartShapePoint.get())
 667     std::cout << "Start point: [" << aStartShapePoint->x() << ", " <<
 668                                        aStartShapePoint->y() << "]" << std::endl;
 669   std::cout << "1st point:   [" << aStartArcPoint->x() << ", " <<
 670                                    aStartArcPoint->y() << "]" << std::endl;
 671   if (aLastShapePoint.get())
 672     std::cout << "2st point:   [" << aLastShapePoint->x() << ", " <<
 673                                      aLastShapePoint->y() << "]" << std::endl;
 674   std::cout << "End point:   [" << aLastArcPoint->x() << ", " <<
 675                                    aLastArcPoint->y() << "]" << std::endl;
 676 #endif
 677
 678   bool isStartPoint = !aStartShapePoint.get() || aStartArcPoint->isEqual(aStartShapePoint);
 679   bool isLastPoint = !aLastShapePoint.get() || aLastArcPoint->isEqual(aLastShapePoint);
 680   if (isStartPoint || isLastPoint) {
 681     // result is one arc: changed existing arc
 682     std::string aModifiedAttribute = isStartPoint ? SketchPlugin_Arc::START_ID()
 683                                                   : SketchPlugin_Arc::END_ID();
 684     std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 685     if (aStartShapePoint.get() && aLastShapePoint.get())
 686       aPoint = isStartPoint ? aLastShapePoint : aStartShapePoint;
 687     else
 688       aPoint = aStartShapePoint.get() ? aStartShapePoint : aLastShapePoint;
 689
 690     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aPoint);
 691     theModifiedAttributes.insert(
 692       std::make_pair(aBaseFeature->attribute(aModifiedAttribute), AttributePtr()));
 693
 694     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 695                                (aBaseFeature->attribute(aModifiedAttribute)));
 696   }
 697   else {
 698     // result is two arcs: start arc point - start shape point, last shape point - last arc point
 699     // create second arc
 700     FeaturePtr anArcFeature = createArcFeature(aBaseFeature, aLastShapePoint, aLastArcPoint);
 701     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 702                                (anArcFeature->attribute(SketchPlugin_Arc::START_ID())));
 703
 704     std::string aModifiedAttribute = SketchPlugin_Arc::END_ID();
 705     theModifiedAttributes.insert(
 706       std::make_pair(aBaseFeature->attribute(aModifiedAttribute),
 707                                    anArcFeature->attribute(SketchPlugin_Arc::END_ID())));
 708
 709     // modify base arc
 710     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aStartShapePoint);
 711
 712     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 713                                (aBaseFeature->attribute(aModifiedAttribute)));
 714
 715     // equal Radius constraint for arcs
 716     createConstraintForObjects(SketchPlugin_ConstraintEqual::ID(),
 717                                getFeatureResult(aBaseFeature),
 718                                getFeatureResult(anArcFeature));
 719     // coincident centers constraint
 720     createConstraint(SketchPlugin_ConstraintCoincidence::ID(),
 721                      aBaseFeature->attribute(SketchPlugin_Arc::CENTER_ID()),
 722                      anArcFeature->attribute(SketchPlugin_Arc::CENTER_ID()));
 723   }
 724 }
 725
 726 FeaturePtr SketchPlugin_Trim::trimCircle(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 727                                    const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 728                                    std::set<AttributePoint2DPtr>& thePoints,
 729                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 730 {
 731   // Check the base objects are initialized.
 732   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 733                                             data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
 734   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 735   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 736
 737   /// points of trim
 738   //AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 739   //getFeaturePoints(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 740
 741   /// trim feature
 742   FeaturePtr anArcFeature = createArcFeature(aBaseFeature, theStartShapePoint, theLastShapePoint);
 743
 744   theModifiedAttributes.insert(
 745     std::make_pair(aBaseFeature->attribute(SketchPlugin_Circle::CENTER_ID()),
 746                    anArcFeature->attribute(SketchPlugin_Arc::CENTER_ID())));
 747
 748   thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 749                              (anArcFeature->attribute(SketchPlugin_Arc::START_ID())));
 750   thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 751                              (anArcFeature->attribute(SketchPlugin_Arc::END_ID())));
 752
 753   return anArcFeature;
 754 }
 755
 756 void SketchPlugin_Trim::arrangePointsOnLine(const AttributePoint2DPtr& theStartPointAttr,
 757                                             const AttributePoint2DPtr& theEndPointAttr,
 758                                             std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
 759                                             std::shared_ptr<GeomAPI_Pnt2d>& theLastPoint) const
 760 {
 761   if (!theFirstPoint.get() || !theLastPoint.get())
 762     return;
 763
 764   // if first point is closer to last point, swap first and last values
 765   if (theStartPointAttr->pnt()->distance(theFirstPoint) >
 766       theStartPointAttr->pnt()->distance(theLastPoint)) {
 767     std::shared_ptr<GeomAPI_Pnt2d> aTmpPoint = theFirstPoint;
 768     theFirstPoint = theLastPoint;
 769     theLastPoint = aTmpPoint;
 770   }
 771 }
 772
 773 void SketchPlugin_Trim::arrangePointsOnArc(const FeaturePtr& theArc,
 774                                   const AttributePoint2DPtr& theStartPointAttr,
 775                                   const AttributePoint2DPtr& theEndPointAttr,
 776                                   std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
 777                                   std::shared_ptr<GeomAPI_Pnt2d>& theSecondPoint) const
 778 {
 779   if (!theFirstPoint.get() || !theSecondPoint.get())
 780     return;
 781
 782   static const double anAngleTol = 1.e-12;
 783
 784   std::shared_ptr<GeomAPI_Pnt2d> aCenter = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 785       theArc->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
 786   bool isReversed = theArc->boolean(SketchPlugin_Arc::INVERSED_ID())->value();
 787
 788   // collect directions to each point
 789   std::shared_ptr<GeomAPI_Dir2d> aStartDir(
 790       new GeomAPI_Dir2d(theStartPointAttr->pnt()->xy()->decreased(aCenter->xy())));
 791   std::shared_ptr<GeomAPI_Dir2d> aFirstPtDir(
 792       new GeomAPI_Dir2d(theFirstPoint->xy()->decreased(aCenter->xy())));
 793   std::shared_ptr<GeomAPI_Dir2d> aSecondPtDir(
 794       new GeomAPI_Dir2d(theSecondPoint->xy()->decreased(aCenter->xy())));
 795
 796   // sort points by their angular values
 797   double aFirstPtAngle = aStartDir->angle(aFirstPtDir);
 798   double aSecondPtAngle = aStartDir->angle(aSecondPtDir);
 799   double aPeriod = isReversed ? -2.0 * PI : 2.0 * PI;
 800   if (fabs(aFirstPtAngle) > anAngleTol && isReversed == (aFirstPtAngle > 0.))
 801     aFirstPtAngle += aPeriod;
 802   if (fabs(aSecondPtAngle) > anAngleTol && isReversed == (aSecondPtAngle > 0.))
 803     aSecondPtAngle += aPeriod;
 804
 805   if (fabs(aFirstPtAngle) > fabs(aSecondPtAngle)) {
 806     std::shared_ptr<GeomAPI_Pnt2d> aTmpPoint = theFirstPoint;
 807     theFirstPoint = theSecondPoint;
 808     theSecondPoint = aTmpPoint;
 809   }
 810 }
 811
 812 void SketchPlugin_Trim::fillPointAttribute(const AttributePtr& theModifiedAttribute,
 813                                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
 814 {
 815   std::string anAttributeType = theModifiedAttribute->attributeType();
 816   if (anAttributeType == GeomDataAPI_Point2D::typeId()) {
 817     AttributePoint2DPtr aModifiedAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 818                                               theModifiedAttribute);
 819     aModifiedAttribute->setValue(thePoint);
 820
 821 #ifdef DEBUG_TRIM
 822     std::cout << "<fillPointAttribute> => Pnt2d - [" << thePoint->x() << ", "
 823               << thePoint->y() << "]" << std::endl;
 824 #endif
 825   }
 826 }
 827
 828
 829 void SketchPlugin_Trim::fillAttribute(const AttributePtr& theModifiedAttribute,
 830                                       const AttributePtr& theSourceAttribute)
 831 {
 832   std::string anAttributeType = theModifiedAttribute->attributeType();
 833   if (anAttributeType == GeomDataAPI_Point2D::typeId()) {
 834     AttributePoint2DPtr aModifiedAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 835                                               theModifiedAttribute);
 836     AttributePoint2DPtr aSourceAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 837                                               theSourceAttribute);
 838
 839     if (aModifiedAttribute.get() && aSourceAttribute.get())
 840       aModifiedAttribute->setValue(aSourceAttribute->pnt());
 841   }
 842   else if (anAttributeType == ModelAPI_AttributeBoolean::typeId()) {
 843     AttributeBooleanPtr aModifiedAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
 844                                               theModifiedAttribute);
 845     AttributeBooleanPtr aSourceAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
 846                                               theSourceAttribute);
 847
 848     if (aModifiedAttribute.get() && aSourceAttribute.get())
 849       aModifiedAttribute->setValue(aSourceAttribute->value());
 850   }
 851   else if (anAttributeType == ModelAPI_AttributeRefAttr::typeId()) {
 852     AttributeRefAttrPtr aRefAttributeToFill = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 853                                                                              theModifiedAttribute);
 854     AttributeRefAttrPtr aSourceRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 855                                          theSourceAttribute);
 856     if (!aSourceRefAttr.get())
 857       aRefAttributeToFill->setAttr(theSourceAttribute);
 858     else {
 859       if (aSourceRefAttr->isObject())
 860         aRefAttributeToFill->setObject(aSourceRefAttr->object());
 861       else
 862         aRefAttributeToFill->setAttr(aSourceRefAttr->attr());
 863     }
 864   }
 865 }
 866
 867 FeaturePtr SketchPlugin_Trim::createLineFeature(const FeaturePtr& theBaseFeature,
 868                                         const std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
 869                                         const std::shared_ptr<GeomAPI_Pnt2d>& theSecondPoint)
 870 {
 871   FeaturePtr aFeature;
 872   SketchPlugin_Sketch* aSketch = sketch();
 873   if (!aSketch || !theBaseFeature.get())
 874     return aFeature;
 875
 876   aFeature = aSketch->addFeature(SketchPlugin_Line::ID());
 877
 878   fillPointAttribute(aFeature->attribute(SketchPlugin_Line::START_ID()), theFirstPoint);
 879   fillPointAttribute(aFeature->attribute(SketchPlugin_Line::END_ID()), theSecondPoint);
 880
 881   fillAttribute(aFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()),
 882                 theBaseFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()));
 883
 884   aFeature->execute(); // to obtain result
 885
 886   return aFeature;
 887 }
 888
 889
 890 FeaturePtr SketchPlugin_Trim::createArcFeature(const FeaturePtr& theBaseFeature,
 891                                                const std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
 892                                                const std::shared_ptr<GeomAPI_Pnt2d>& theSecondPoint)
 893 {
 894   FeaturePtr aFeature;
 895   SketchPlugin_Sketch* aSketch = sketch();
 896   if (!aSketch || !theBaseFeature.get())
 897     return aFeature;
 898
 899   std::string aCenterAttributeId;
 900   if (theBaseFeature->getKind() == SketchPlugin_Arc::ID())
 901     aCenterAttributeId = SketchPlugin_Arc::CENTER_ID();
 902   else if (theBaseFeature->getKind() == SketchPlugin_Circle::ID())
 903     aCenterAttributeId = SketchPlugin_Circle::CENTER_ID();
 904
 905   if (aCenterAttributeId.empty())
 906     return aFeature;
 907
 908   aFeature = aSketch->addFeature(SketchPlugin_Arc::ID());
 909   // update fillet arc: make the arc correct for sure, so, it is not needed to process
 910   // the "attribute updated"
 911   // by arc; moreover, it may cause cyclicity in hte mechanism of updater
 912   bool aWasBlocked = aFeature->data()->blockSendAttributeUpdated(true);
 913
 914   aFeature->string(SketchPlugin_Arc::ARC_TYPE())->setValue(
 915                 SketchPlugin_Arc::ARC_TYPE_CENTER_START_END());
 916
 917   fillAttribute(aFeature->attribute(SketchPlugin_Arc::CENTER_ID()),
 918                 theBaseFeature->attribute(aCenterAttributeId));
 919   fillPointAttribute(aFeature->attribute(SketchPlugin_Arc::START_ID()), theFirstPoint);
 920   fillPointAttribute(aFeature->attribute(SketchPlugin_Arc::END_ID()), theSecondPoint);
 921
 922   fillAttribute(aFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()),
 923                 theBaseFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()));
 924
 925   /// fill referersed state of created arc as it is on the base arc
 926   if (theBaseFeature->getKind() == SketchPlugin_Arc::ID()) {
 927     bool aReversed = theBaseFeature->boolean(SketchPlugin_Arc::INVERSED_ID())->value();
 928     aFeature->boolean(SketchPlugin_Arc::INVERSED_ID())->setValue(aReversed);
 929   }
 930   aFeature->execute(); // to obtain result
 931   aFeature->data()->blockSendAttributeUpdated(aWasBlocked);
 932
 933   return aFeature;
 934 }
 935
 936 FeaturePtr SketchPlugin_Trim::createConstraint(const std::string& theConstraintId,
 937                                                const AttributePtr& theFirstAttribute,
 938                                                const AttributePtr& theSecondAttribute)
 939 {
 940   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
 941   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 942                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 943   aRefAttr->setAttr(theFirstAttribute);
 944
 945   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 946                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 947   aRefAttr->setAttr(theSecondAttribute);
 948
 949 #ifdef DEBUG_TRIM
 950   std::cout << "<createConstraint to attribute> :"
 951             << "first attribute - " << theFirstAttribute->id()
 952             << "second attribute - " << theSecondAttribute->id()
 953             << std::endl;
 954 #endif
 955
 956   return aConstraint;
 957 }
 958
 959 FeaturePtr SketchPlugin_Trim::createConstraintToObject(const std::string& theConstraintId,
 960                                                const AttributePtr& theFirstAttribute,
 961                                                const ObjectPtr& theSecondObject)
 962 {
 963   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
 964   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 965                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 966   aRefAttr->setAttr(theFirstAttribute);
 967
 968   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 969                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 970   aRefAttr->setObject(theSecondObject);
 971
 972 #ifdef DEBUG_TRIM
 973   std::cout << "<createConstraint to attribute> :"
 974             << "first attribute - " << theFirstAttribute->id()
 975             << "second object - " << ModelAPI_Feature::feature(theSecondObject)->getKind()
 976             << std::endl;
 977 #endif
 978
 979   return aConstraint;
 980 }
 981
 982 FeaturePtr SketchPlugin_Trim::createConstraintForObjects(
 983                                                     const std::string& theConstraintId,
 984                                                     const ObjectPtr& theFirstObject,
 985                                                     const ObjectPtr& theSecondObject)
 986 {
 987   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
 988   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 989                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 990   aRefAttr->setObject(theFirstObject);
 991
 992   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 993                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 994   aRefAttr->setObject(theSecondObject);
 995
 996   return aConstraint;
 997 }
 998
 999 std::shared_ptr<ModelAPI_Result> SketchPlugin_Trim::getFeatureResult(
1000                                     const std::shared_ptr<ModelAPI_Feature>& theFeature)
1001 {
1002   std::shared_ptr<ModelAPI_Result> aResult;
1003
1004   std::string aFeatureKind = theFeature->getKind();
1005   if (aFeatureKind == SketchPlugin_Line::ID())
1006     aResult = theFeature->firstResult();
1007   else if (aFeatureKind == SketchPlugin_Arc::ID())
1008     aResult = theFeature->lastResult();
1009   else if (aFeatureKind == SketchPlugin_Circle::ID())
1010     aResult = theFeature->lastResult();
1011
1012   return aResult;
1013 }
1014
1015 //********************************************************************
1016 bool SketchPlugin_Trim::useGraphicIntersection() const
1017 {
1018   return true;
1019 }
1020
1021 //********************************************************************
1022 void SketchPlugin_Trim::fillObjectShapes(const ObjectPtr& theObject)
1023 {
1024   PointToRefsMap aPointsInfo;
1025
1026   std::set<std::shared_ptr<GeomAPI_Shape> > aShapes;
1027   std::map<std::shared_ptr<GeomAPI_Pnt>,
1028                            std::list< AttributePoint2DPtr > > aPointToAttributes;
1029   std::map<std::shared_ptr<GeomAPI_Pnt>,
1030                            std::list< ObjectPtr > > aPointToObjects;
1031
1032   std::set<AttributePoint2DPtr > aRefAttributes;
1033   // current feature
1034   FeaturePtr aFeature = ModelAPI_Feature::feature(theObject);
1035   std::set<ResultPtr> anEdgeShapes;
1036   // edges on feature
1037   ModelAPI_Tools::shapesOfType(aFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
1038   if (!anEdgeShapes.empty()) {
1039     GeomShapePtr aFeatureShape = (*anEdgeShapes.begin())->shape();
1040
1041     // coincidences to the feature
1042     ModelGeomAlgo_Point2D::getPointsOfReference(aFeature, SketchPlugin_ConstraintCoincidence::ID(),
1043                          aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
1044     // layed on feature coincidences to divide it on several shapes
1045     SketchPlugin_Sketch* aSketch = sketch();
1046     std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
1047     std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
1048         aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
1049     std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1050         aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
1051     std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1052         aData->attribute(SketchPlugin_Sketch::NORM_ID()));
1053     std::shared_ptr<GeomAPI_Dir> aY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
1054
1055     ModelGeomAlgo_Point2D::getPointsInsideShape(aFeatureShape, aRefAttributes, aC->pnt(),
1056                                                 aX->dir(), aY, aPointsInfo);
1057
1058     // intersection points
1059     if (useGraphicIntersection()) {
1060       std::list<FeaturePtr> aFeatures;
1061       for (int i = 0; i < aSketch->numberOfSubs(); i++) {
1062         FeaturePtr aFeature = aSketch->subFeature(i);
1063         if (aFeature.get())
1064           aFeatures.push_back(aFeature);
1065       }
1066       ModelGeomAlgo_Point2D::getPointsIntersectedShape(aFeature, aFeatures, aPointsInfo);
1067     }
1068     GeomAlgoAPI_ShapeTools::splitShape(aFeatureShape, aPointsInfo, aShapes);
1069   }
1070   myObjectToPoints[theObject] = aPointsInfo;
1071   myCashedShapes[theObject] = aShapes;
1072 }
1073
1074 //********************************************************************
1075 void SketchPlugin_Trim::attributeChanged(const std::string& theID)
1076 {
1077   //data()->addAttribute(SketchPlugin_Trim::BASE_OBJECT(), ModelAPI_AttributeReference::typeId());
1078   if (theID == SketchPlugin_Trim::BASE_OBJECT()) {
1079     bool isValidAttribute = false;
1080     // feature for trim
1081     AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
1082                                              data()->attribute(SketchPlugin_Trim::BASE_OBJECT()));
1083     ObjectPtr aBaseObject = aBaseObjectAttr->value();
1084     if (aBaseObject.get()) {
1085       FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
1086       // point on feature
1087       AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1088                                                data()->attribute(ENTITY_POINT()));
1089       std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1090       std::shared_ptr<GeomAPI_Pnt> anAttributePnt = sketch()->to3D(anAttributePnt2d->x(),
1091                                                                    anAttributePnt2d->y());
1092
1093       if (myCashedShapes.find(aBaseObject) == myCashedShapes.end())
1094         fillObjectShapes(aBaseObject);
1095
1096       const std::set<GeomShapePtr>& aShapes = myCashedShapes[aBaseObject];
1097       isValidAttribute = !aShapes.empty();
1098
1099       if (!isValidAttribute) {
1100         bool aWasBlocked = data()->blockSendAttributeUpdated(true);
1101         aBaseObjectAttr->setValue(ObjectPtr());
1102         data()->blockSendAttributeUpdated(aWasBlocked);
1103       }
1104     }
1105   }
1106 }