src/SketchPlugin/SketchPlugin_Trim.cpp

   1 // Copyright (C) 2014-2017  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 #include "SketchPlugin_Trim.h"
  22
  23 #include <GeomAPI_Dir2d.h>
  24 #include <GeomAPI_Edge.h>
  25 #include <GeomAPI_Pnt2d.h>
  26 #include <GeomAPI_XY.h>
  27 #include <GeomDataAPI_Point2D.h>
  28 #include <GeomAlgoAPI_ShapeTools.h>
  29 #include <GeomAlgoAPI_CompoundBuilder.h>
  30
  31 #include <ModelAPI_AttributeReference.h>
  32 #include <ModelAPI_AttributeString.h>
  33 #include <ModelAPI_AttributeRefAttr.h>
  34 #include <ModelAPI_Tools.h>
  35 #include <ModelAPI_AttributeBoolean.h>
  36
  37 #include <ModelAPI_Validator.h>
  38 #include <ModelAPI_Session.h>
  39 #include <ModelAPI_AttributeDouble.h>
  40
  41 #include <ModelGeomAlgo_Shape.h>
  42
  43 #include <SketchPlugin_Arc.h>
  44 #include <SketchPlugin_ConstraintMiddle.h>
  45 #include <SketchPlugin_Circle.h>
  46 #include <SketchPlugin_ConstraintCoincidence.h>
  47 #include <SketchPlugin_ConstraintEqual.h>
  48 //#include <SketchPlugin_ConstraintParallel.h>
  49 #include <SketchPlugin_ConstraintTangent.h>
  50 #include <SketchPlugin_ConstraintLength.h>
  51 #include <SketchPlugin_ConstraintMirror.h>
  52 #include <SketchPlugin_ConstraintCollinear.h>
  53 #include <SketchPlugin_Line.h>
  54 #include <SketchPlugin_MultiRotation.h>
  55 #include <SketchPlugin_MultiTranslation.h>
  56 #include <SketchPlugin_Point.h>
  57 #include <SketchPlugin_Projection.h>
  58
  59 #include <ModelAPI_EventReentrantMessage.h>
  60
  61 #include <ModelAPI_Events.h>
  62 #include <SketchPlugin_Line.h>
  63 #include <SketchPlugin_Arc.h>
  64 #include <SketchPlugin_Circle.h>
  65
  66 #include <ModelGeomAlgo_Point2D.h>
  67 #include <Events_Loop.h>
  68
  69 #include <cmath>
  70
  71 //#define DEBUG_TRIM_METHODS
  72 //#define DEBUG_TRIM
  73
  74 #ifdef DEBUG_TRIM
  75 #include <iostream>
  76 #endif
  77
  78 #ifdef DEBUG_TRIM_METHODS
  79 #include <iostream>
  80 #endif
  81
  82 static const double PI = 3.141592653589793238463;
  83
  84 static const std::string OPERATION_HIGHLIGHT_COLOR() { return "128, 0, 0"; }
  85 static const std::string OPERATION_REMOVE_FEATURE_COLOR() { return "255, 174, 201"; }
  86
  87 SketchPlugin_Trim::SketchPlugin_Trim()
  88 {
  89 }
  90
  91 void SketchPlugin_Trim::initAttributes()
  92 {
  93   data()->addAttribute(SELECTED_OBJECT(), ModelAPI_AttributeReference::typeId());
  94   data()->addAttribute(SELECTED_POINT(), GeomDataAPI_Point2D::typeId());
  95
  96   data()->addAttribute(PREVIEW_POINT(), GeomDataAPI_Point2D::typeId());
  97   data()->addAttribute(PREVIEW_OBJECT(), ModelAPI_AttributeReference::typeId());
  98
  99   data()->attribute(PREVIEW_POINT())->setIsArgument(false);
 100   data()->attribute(SELECTED_POINT())->setIsArgument(false);
 101   data()->attribute(PREVIEW_OBJECT())->setIsArgument(false);
 102
 103   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), PREVIEW_POINT());
 104   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), PREVIEW_OBJECT());
 105 }
 106
 107 void SketchPlugin_Trim::findShapePoints(const std::string& theObjectAttributeId,
 108                                         const std::string& thePointAttributeId,
 109                                         std::shared_ptr<GeomAPI_Pnt>& aStartPoint,
 110                                         std::shared_ptr<GeomAPI_Pnt>& aLastPoint)
 111 {
 112   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 113                                             data()->attribute(theObjectAttributeId));
 114   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 115
 116   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 117                                               data()->attribute(thePointAttributeId));
 118   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
 119   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = sketch()->to3D(anAttributePnt2d->x(),
 120                                                                anAttributePnt2d->y());
 121
 122   if (myCashedShapes.find(aBaseObject) == myCashedShapes.end())
 123     fillObjectShapes(aBaseObject, sketch()->data()->owner(), myCashedShapes, myObjectToPoints);
 124
 125   const std::set<GeomShapePtr>& aShapes = myCashedShapes[aBaseObject];
 126   if (!aShapes.empty()) {
 127     std::set<GeomShapePtr>::const_iterator anIt = aShapes.begin(), aLast = aShapes.end();
 128     for (; anIt != aLast; anIt++) {
 129       GeomShapePtr aBaseShape = *anIt;
 130       std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
 131       if (ModelGeomAlgo_Point2D::isPointOnEdge(aBaseShape, anAttributePnt, aProjectedPoint)) {
 132
 133         if (aBaseShape->shapeType() == GeomAPI_Shape::EDGE) {
 134           std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aBaseShape));
 135           //GeomAPI_Shape::Orientation anOrientation = anEdge->orientation();
 136           //if (anOrientation == GeomAPI_Shape::REVERSED) {
 137             aStartPoint = anEdge->lastPoint();
 138             aLastPoint = anEdge->firstPoint();
 139           //}
 140           //else {
 141             //aStartPoint = anEdge->firstPoint();
 142             //aLastPoint = anEdge->lastPoint();
 143           //}
 144         }
 145       }
 146     }
 147   }
 148 #ifdef DEBUG_TRIM
 149   std::cout << "<findShapePoints> => "
 150     << std::endl << "Attribute point: "
 151     << anAttributePnt->x() << ", " << anAttributePnt->y() << ", " << anAttributePnt->z() << "]"
 152     << std::endl << "Start Point: ["
 153     << aStartPoint->x() << ", " << aStartPoint->y() << ", " << aStartPoint->z() << "]"
 154     << std::endl << "Last Point: ["
 155     << aLastPoint->x() << ", " << aLastPoint->y() << ", " << aLastPoint->z() << "]"
 156     << std::endl;
 157 #endif
 158 }
 159
 160 std::shared_ptr<GeomAPI_Pnt2d> SketchPlugin_Trim::convertPoint(
 161                                                    const std::shared_ptr<GeomAPI_Pnt>& thePoint)
 162 {
 163   std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 164   if (!thePoint.get())
 165     return aPoint;
 166
 167   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 168                                         data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 169   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 170   if (myObjectToPoints.find(aBaseObject) == myObjectToPoints.end())
 171     fillObjectShapes(aBaseObject, sketch()->data()->owner(), myCashedShapes, myObjectToPoints);
 172
 173   bool aFound = false;
 174   const PointToRefsMap& aRefsMap = myObjectToPoints.at(aBaseObject);
 175   for (PointToRefsMap::const_iterator aPointIt = aRefsMap.begin();
 176        aPointIt != aRefsMap.end() && !aFound; aPointIt++) {
 177     if (aPointIt->first->isEqual(thePoint)) {
 178       const std::pair<std::list<AttributePoint2DPtr >,
 179                std::list<ObjectPtr > >& anInfo = aPointIt->second;
 180       const std::list<AttributePoint2DPtr >& anAttributes = anInfo.first;
 181       if (!anAttributes.empty()) {
 182         aPoint = anAttributes.front()->pnt();
 183         aFound = true;
 184       }
 185       else {
 186         aPoint = sketch()->to2D(thePoint);
 187         aFound = true;
 188       }
 189     }
 190   }
 191   if (!aFound) {
 192     // returns an end of the shape to define direction of split if feature's attribute
 193     // participates
 194     aPoint = sketch()->to2D(thePoint);
 195   }
 196   return aPoint;
 197 }
 198
 199 void SketchPlugin_Trim::execute()
 200 {
 201 #ifdef DEBUG_TRIM_METHODS
 202   std::cout << "SketchPlugin_Trim::execute: " << data()->name() << std::endl;
 203 #endif
 204
 205   SketchPlugin_Sketch* aSketch = sketch();
 206   if (!aSketch) {
 207     setError("Error: Sketch object is empty.");
 208     return;
 209   }
 210
 211   // Check the base objects are initialized.
 212   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 213                                         data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 214   if(!aBaseObjectAttr->isInitialized()) {
 215     setError("Error: Base object is not initialized.");
 216     return;
 217   }
 218   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 219   if (!aBaseObject.get()) {
 220     setError("Error: Base object is not initialized.");
 221     return;
 222   }
 223   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 224
 225   /// Remove reference of this feature to feature used in preview, it is not necessary anymore
 226   /// as trim will be removed after execute
 227   AttributeReferencePtr aPreviewObjectAttr =
 228                      std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 229                      data()->attribute(SketchPlugin_Trim::PREVIEW_OBJECT()));
 230
 231   ObjectPtr aPreviewObject = aPreviewObjectAttr->value();
 232   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 233                                            data()->attribute(PREVIEW_POINT()));
 234   std::shared_ptr<GeomAPI_Pnt2d> aPreviewPnt2d = aPoint->pnt();
 235   // nullify pointer of preview attribute
 236   aPreviewObjectAttr->setValue(ResultPtr());
 237
 238   bool anIsEqualPreviewAndSelected = aPreviewObject == aBaseObject;
 239
 240   /// points of trim
 241   std::shared_ptr<GeomAPI_Pnt> aStartShapePoint, aLastShapePoint;
 242 #ifdef DEBUG_TRIM
 243   std::cout << " Base Feature: " << aBaseFeature->data()->name() << std::endl;
 244 #endif
 245   findShapePoints(SELECTED_OBJECT(), SELECTED_POINT(), aStartShapePoint, aLastShapePoint);
 246
 247   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint2d = convertPoint(aStartShapePoint);
 248   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint2d = convertPoint(aLastShapePoint);
 249   /// find features that should be deleted (e.g. Middle Point) or updated (e.g. Length)
 250   std::set<FeaturePtr> aFeaturesToDelete, aFeaturesToUpdate;
 251   getConstraints(aFeaturesToDelete, aFeaturesToUpdate);
 252   // find references(attributes and features) to the base feature
 253   std::map<AttributePtr, std::list<AttributePtr> > aBaseRefAttributes;
 254   std::list<AttributePtr> aRefsToFeature;
 255   getRefAttributes(aBaseFeature, aBaseRefAttributes, aRefsToFeature);
 256 #ifdef DEBUG_TRIM
 257   std::cout << "---- getRefAttributes ----" << std::endl;
 258   std::map<AttributePtr, std::list<AttributePtr> >::const_iterator
 259     aRefIt = aBaseRefAttributes.begin(), aRefLast = aBaseRefAttributes.end();
 260   std::cout << std::endl << "References to attributes of base feature [" <<
 261     aBaseRefAttributes.size() << "]" << std::endl;
 262   for (; aRefIt != aRefLast; aRefIt++) {
 263     AttributePtr aBaseAttr = aRefIt->first;
 264     std::list<AttributePtr> aRefAttributes = aRefIt->second;
 265     std::string aRefsInfo;
 266     std::list<AttributePtr>::const_iterator aRefAttrIt = aRefAttributes.begin(),
 267                                             aRefAttrLast = aRefAttributes.end();
 268     for (; aRefAttrIt != aRefAttrLast; aRefAttrIt++) {
 269       if (!aRefsInfo.empty())
 270         aRefsInfo.append(",");
 271       AttributePtr aRAttr = *aRefAttrIt;
 272       aRefsInfo.append(aRAttr->id());
 273       FeaturePtr aRFeature = ModelAPI_Feature::feature(aRAttr->owner());
 274       aRefsInfo.append("(" + aRFeature->name() + ") ");
 275     }
 276     std::shared_ptr<GeomDataAPI_Point2D> aPointAttr =
 277       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aBaseAttr);
 278     std::cout << aPointAttr->id().c_str() <<
 279       ": " << "[" << aRefAttributes.size() << "] " << aRefsInfo << std::endl;
 280   }
 281   std::cout << std::endl;
 282   std::cout << std::endl << "References to base feature [" <<
 283     aRefsToFeature.size() << "]" << std::endl;
 284   std::list<AttributePtr>::const_iterator aRefAttrIt = aRefsToFeature.begin(),
 285                                           aRefAttrLast = aRefsToFeature.end();
 286   std::string aRefsInfo;
 287   for (; aRefAttrIt != aRefAttrLast; aRefAttrIt++) {
 288     if (!aRefsInfo.empty())
 289       aRefsInfo.append(",");
 290     AttributePtr aRAttr = *aRefAttrIt;
 291     aRefsInfo.append(aRAttr->id());
 292     FeaturePtr aRFeature = ModelAPI_Feature::feature(aRAttr->owner());
 293     aRefsInfo.append("(" + aRFeature->name() + ") ");
 294   }
 295   std::cout << "[" << aRefsToFeature.size() << "] " << aRefsInfo << std::endl;
 296   std::cout << "---- getRefAttributes:end ----" << std::endl;
 297 #endif
 298   std::set<AttributePoint2DPtr> aFurtherCoincidences;
 299   std::set<std::pair<AttributePtr, AttributePtr>> aModifiedAttributes;
 300   const std::string& aKind = aBaseFeature->getKind();
 301   FeaturePtr aReplacingFeature, aNewFeature;
 302   if (aKind == SketchPlugin_Circle::ID()) {
 303     aReplacingFeature = trimCircle(aStartShapePoint2d, aLastShapePoint2d,
 304                aFurtherCoincidences, aModifiedAttributes);
 305
 306     aFeaturesToDelete.insert(aBaseFeature);
 307     // as circle is removed, erase it from dependencies(arguments) of this feature
 308     // otherwise Trim feature will be removed with the circle before
 309     // this operation is finished
 310     aBaseObjectAttr->setObject(ResultPtr());
 311   }
 312   else if (aKind == SketchPlugin_Line::ID()) {
 313     aNewFeature = trimLine(aStartShapePoint2d, aLastShapePoint2d, aBaseRefAttributes,
 314                            aFurtherCoincidences, aModifiedAttributes);
 315   }
 316   else if (aKind == SketchPlugin_Arc::ID()) {
 317     aNewFeature = trimArc(aStartShapePoint2d, aLastShapePoint2d, aBaseRefAttributes,
 318                           aFurtherCoincidences, aModifiedAttributes);
 319   }
 320
 321   // constraints to end points of trim feature
 322   if (myObjectToPoints.find(aBaseObject) == myObjectToPoints.end())
 323     fillObjectShapes(aBaseObject, sketch()->data()->owner(), myCashedShapes, myObjectToPoints);
 324
 325   // create coincidence to objects, intersected the base object
 326   const PointToRefsMap& aRefsMap = myObjectToPoints.at(aBaseObject);
 327   for (std::set<AttributePoint2DPtr>::const_iterator anIt = aFurtherCoincidences.begin(),
 328                                                      aLast = aFurtherCoincidences.end();
 329        anIt != aLast; anIt++) {
 330     AttributePoint2DPtr aPointAttribute = (*anIt);
 331     std::shared_ptr<GeomAPI_Pnt2d> aPoint2d = aPointAttribute->pnt();
 332
 333 #ifdef DEBUG_TRIM
 334     std::cout << "<compare Points> => " << std::endl
 335             << "aPoint2d: [" << aPoint2d->x() << ", " << aPoint2d->y() << "]" << std::endl;
 336     if (aStartShapePoint2d.get())
 337       std::cout << "Start Point: [" << aStartShapePoint2d->x() << ", " << aStartShapePoint2d->y()
 338                 << "]" << std::endl;
 339     if (aLastShapePoint2d.get())
 340       std::cout << "Last Point: [" << aLastShapePoint2d->x() << ", " << aLastShapePoint2d->y()
 341                 << "]" << std::endl;
 342 #endif
 343
 344     std::shared_ptr<GeomAPI_Pnt> aPoint;
 345     if (aStartShapePoint2d.get() && aPoint2d->isEqual(aStartShapePoint2d))
 346       aPoint = aStartShapePoint;
 347     else if (aLastShapePoint2d.get() && aPoint2d->isEqual(aLastShapePoint2d))
 348       aPoint = aLastShapePoint;
 349
 350     if (!aPoint.get())
 351       continue;
 352
 353     std::pair<std::list<AttributePoint2DPtr >, std::list<ObjectPtr > > anInfo;
 354     for (PointToRefsMap::const_iterator aRefIt = aRefsMap.begin(); aRefIt != aRefsMap.end();
 355          aRefIt++)
 356     {
 357       if (aRefIt->first->isEqual(aPoint)) {
 358         anInfo = aRefIt->second;
 359         break;
 360       }
 361     }
 362     const std::list<ObjectPtr>& anObjects = anInfo.second;
 363     for (std::list<ObjectPtr>::const_iterator anObjectIt = anObjects.begin();
 364       anObjectIt != anObjects.end(); anObjectIt++) {
 365       createConstraintToObject(SketchPlugin_ConstraintCoincidence::ID(), aPointAttribute,
 366                                *anObjectIt);
 367     }
 368   }
 369
 370   // move constraints from base feature to replacing feature: ignore coincidences to feature
 371   // if attributes of coincidence participated in split
 372   ResultPtr aReplacingResult;
 373   if (aReplacingFeature.get()) {
 374     aReplacingFeature->execute(); // need it to obtain result
 375     aReplacingResult = getFeatureResult(aReplacingFeature);
 376   }
 377   for(std::list<AttributePtr>::const_iterator anIt = aRefsToFeature.begin(),
 378                                           aLast = aRefsToFeature.end();
 379       anIt != aLast; anIt++) {
 380     AttributePtr anAttribute = *anIt;
 381
 382     if (setCoincidenceToAttribute(anAttribute, aFurtherCoincidences, aFeaturesToDelete))
 383       continue;
 384
 385     // move tangency constraint to the nearest feature if possible
 386     if (aNewFeature.get() && moveTangency(anAttribute, aNewFeature))
 387       continue;
 388
 389     if (aReplacingResult.get()) {
 390       AttributeRefAttrPtr aRefAttr =
 391           std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttribute);
 392       if (aRefAttr.get())
 393         aRefAttr->setObject(aReplacingResult);
 394       else {
 395         AttributeReferencePtr aReferenceAttr =
 396                              std::dynamic_pointer_cast<ModelAPI_AttributeReference>(anAttribute);
 397         if (aReferenceAttr.get())
 398           aReferenceAttr->setObject(aReplacingResult);
 399       }
 400     }
 401   }
 402
 403   updateRefAttConstraints(aBaseRefAttributes, aModifiedAttributes, aFeaturesToDelete);
 404
 405   // Wait all constraints being created, then send update events
 406   static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
 407   bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
 408   if (isUpdateFlushed)
 409     Events_Loop::loop()->setFlushed(anUpdateEvent, false);
 410
 411   // delete constraints
 412 #ifdef DEBUG_TRIM
 413   if (aFeaturesToDelete.size() > 0) {
 414     std::cout << "after SPlit: removeFeaturesAndReferences: " << std::endl;
 415     std::string aValue;
 416     for (std::set<FeaturePtr>::const_iterator anIt = aFeaturesToDelete.begin();
 417          anIt != aFeaturesToDelete.end(); anIt++) {
 418       FeaturePtr aFeature = *anIt;
 419       std::cout << aFeature->data()->name() << std::endl;
 420     }
 421   }
 422 #endif
 423   ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToDelete);
 424   Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_DELETED));
 425
 426   updateFeaturesAfterTrim(aFeaturesToUpdate);
 427
 428   // Send events to update the sub-features by the solver.
 429   if(isUpdateFlushed) {
 430     Events_Loop::loop()->setFlushed(anUpdateEvent, true);
 431   }
 432
 433   if (anIsEqualPreviewAndSelected) {
 434     // equal preview and selected objects
 435     // nothing to do if the preview and selected objects are different
 436     if (aReplacingResult.get()) { // base object was removed
 437       aPreviewObject = aReplacingResult;
 438       //aMessage->setSelectedObject(aReplacingResult);
 439 #ifdef DEBUG_TRIM_METHODS
 440       if (!aSelectedShape.get())
 441         std::cout << "Set empty selected object" << std::endl;
 442       else
 443         std::cout << "Set shape with ShapeType: " << aSelectedShape->shapeTypeStr() << std::endl;
 444 #endif
 445     }
 446     else {
 447       aPreviewObject = ObjectPtr();
 448
 449       aBaseFeature->execute(); // should recompute shapes of result to do not check obsolete one
 450       aBaseObject = getFeatureResult(aBaseFeature);
 451       std::shared_ptr<GeomAPI_Pnt> aPreviewPnt = sketch()->to3D(aPreviewPnt2d->x(),
 452                                                                 aPreviewPnt2d->y());
 453       ResultPtr aBaseResult = std::dynamic_pointer_cast<ModelAPI_Result>(aBaseObject);
 454       if (aBaseResult) {
 455         GeomShapePtr aShape = aBaseResult->shape();
 456         std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
 457         if (ModelGeomAlgo_Point2D::isPointOnEdge(aShape, aPreviewPnt, aProjectedPoint))
 458           aPreviewObject = aBaseResult;
 459       }
 460       if (!aPreviewObject.get() && aNewFeature.get()) {
 461         ResultPtr aNewFeatureResult = getFeatureResult(aNewFeature);
 462         if (aNewFeatureResult.get()) {
 463           GeomShapePtr aShape = aNewFeatureResult->shape();
 464           std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
 465           if (ModelGeomAlgo_Point2D::isPointOnEdge(aShape, aPreviewPnt, aProjectedPoint))
 466             aPreviewObject = aNewFeatureResult;
 467         }
 468       }
 469     }
 470   }
 471   if (aPreviewObject.get()) {
 472     std::shared_ptr<ModelAPI_EventReentrantMessage> aMessage = std::shared_ptr
 473       <ModelAPI_EventReentrantMessage>(new ModelAPI_EventReentrantMessage(
 474                                            ModelAPI_EventReentrantMessage::eventId(), this));
 475     aMessage->setSelectedObject(aPreviewObject);
 476     Events_Loop::loop()->send(aMessage);
 477   }
 478 #ifdef DEBUG_TRIM
 479   std::cout << "SketchPlugin_Trim::done" << std::endl;
 480 #endif
 481 }
 482
 483 std::string SketchPlugin_Trim::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 484 {
 485 #ifdef DEBUG_TRIM_METHODS
 486   std::cout << "SketchPlugin_Trim::processEvent:" << data()->name() << std::endl;
 487 #endif
 488   std::string aFilledAttributeName;
 489
 490   std::shared_ptr<ModelAPI_EventReentrantMessage> aMessage =
 491         std::dynamic_pointer_cast<ModelAPI_EventReentrantMessage>(theMessage);
 492   if (aMessage.get()) {
 493     ObjectPtr anObject = aMessage->selectedObject();
 494     std::shared_ptr<GeomAPI_Pnt2d> aPoint = aMessage->clickedPoint();
 495
 496     if (anObject.get() && aPoint.get()) {
 497       if (myCashedShapes.find(anObject) == myCashedShapes.end())
 498         fillObjectShapes(anObject, sketch()->data()->owner(), myCashedShapes, myObjectToPoints);
 499       const std::set<GeomShapePtr>& aShapes = myCashedShapes[anObject];
 500       if (aShapes.size() > 1) {
 501         std::shared_ptr<ModelAPI_AttributeReference> aRefSelectedAttr =
 502                               std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 503                               data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 504         std::shared_ptr<ModelAPI_AttributeReference> aRefPreviewAttr =
 505                               std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 506                               data()->attribute(SketchPlugin_Trim::PREVIEW_OBJECT()));
 507         aRefSelectedAttr->setValue(anObject);
 508         aRefPreviewAttr->setValue(anObject);
 509
 510         std::shared_ptr<GeomDataAPI_Point2D> aPointSelectedAttr =
 511                               std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 512                               data()->attribute(SketchPlugin_Trim::SELECTED_POINT()));
 513         std::shared_ptr<GeomDataAPI_Point2D> aPointPreviewAttr =
 514                               std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 515                               data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
 516         aPointSelectedAttr->setValue(aPoint);
 517         aPointPreviewAttr->setValue(aPoint);
 518
 519         Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
 520
 521         GeomShapePtr aSelectedShape = getSubShape(SELECTED_OBJECT(), SELECTED_POINT());
 522   #ifdef DEBUG_TRIM_METHODS
 523         if (!aSelectedShape.get())
 524           std::cout << "Set empty selected object" << std::endl;
 525         else
 526           std::cout << "Set shape with ShapeType: " << aSelectedShape->shapeTypeStr() << std::endl;
 527   #endif
 528         aFilledAttributeName = SketchPlugin_Trim::SELECTED_OBJECT();
 529       }
 530     }
 531   }
 532   return aFilledAttributeName;
 533 }
 534
 535 bool SketchPlugin_Trim::setCoincidenceToAttribute(const AttributePtr& theAttribute,
 536                                 const std::set<AttributePoint2DPtr>& theFurtherCoincidences,
 537                                 std::set<std::shared_ptr<ModelAPI_Feature>>& theFeaturesToDelete)
 538 {
 539   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
 540   if (aFeature->getKind() != SketchPlugin_ConstraintCoincidence::ID())
 541     return false;
 542
 543   AttributePoint2DPtr aRefPointAttr = SketchPlugin_ConstraintCoincidence::getPoint(aFeature);
 544   if (!aRefPointAttr.get())
 545     return false;
 546   std::shared_ptr<GeomAPI_Pnt2d> aRefPnt2d = aRefPointAttr->pnt();
 547
 548   std::set<AttributePoint2DPtr>::const_iterator anIt = theFurtherCoincidences.begin(),
 549                                                 aLast = theFurtherCoincidences.end();
 550   bool aFoundPoint = false;
 551   for (; anIt != aLast && !aFoundPoint; anIt++) {
 552     AttributePoint2DPtr aPointAttribute = (*anIt);
 553     std::shared_ptr<GeomAPI_Pnt2d> aPoint2d = aPointAttribute->pnt();
 554     if (aPoint2d->isEqual(aRefPnt2d)) {
 555       // create new coincidence and then remove the old one
 556       createConstraint(SketchPlugin_ConstraintCoincidence::ID(), aRefPointAttr, aPointAttribute);
 557       theFeaturesToDelete.insert(aFeature);
 558     }
 559   }
 560   return aFoundPoint;
 561 }
 562
 563 bool SketchPlugin_Trim::moveTangency(const AttributePtr& theAttribute,
 564                                      const FeaturePtr& theFeature)
 565 {
 566   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
 567   if (aFeature->getKind() != SketchPlugin_ConstraintTangent::ID())
 568     return false;
 569
 570   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 571                                                                            theAttribute);
 572   if (!aRefAttr.get())
 573     return false;
 574
 575   // get shape of tangent object to the current
 576   std::string aTangentAttr = SketchPlugin_Constraint::ENTITY_A();
 577   if (aRefAttr->id() == SketchPlugin_Constraint::ENTITY_A())
 578     aTangentAttr = SketchPlugin_Constraint::ENTITY_B();
 579   AttributeRefAttrPtr aTangentRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 580                                                      aFeature->attribute(aTangentAttr));
 581   FeaturePtr aTangentFeature = ModelAPI_Feature::feature(aTangentRefAttr->object());
 582
 583   // get shape of the feature of the attribute
 584   FeaturePtr anAttributeFeature = ModelAPI_Feature::feature(aRefAttr->object());
 585   anAttributeFeature->execute(); // the modified value should be applyed to recompute shape
 586   PointToRefsMap aPointToAttributeOrObject;
 587   std::list<FeaturePtr> aFeatures;
 588   aFeatures.push_back(anAttributeFeature);
 589   ModelGeomAlgo_Point2D::getPointsIntersectedShape(aTangentFeature, aFeatures,
 590                                                    aPointToAttributeOrObject);
 591   if (!aPointToAttributeOrObject.empty())
 592     return true; // the attribute feature has a point of intersection, so we do not replace it
 593
 594   // get shape of the feature
 595   aPointToAttributeOrObject.clear();
 596   aFeatures.clear();
 597   aFeatures.push_back(theFeature);
 598   ModelGeomAlgo_Point2D::getPointsIntersectedShape(aTangentFeature, aFeatures,
 599                                                    aPointToAttributeOrObject);
 600   if (!aPointToAttributeOrObject.empty()) {
 601     std::set<ResultPtr> anEdgeShapes;
 602     ModelGeomAlgo_Shape::shapesOfType(theFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
 603     if (!anEdgeShapes.empty()) {
 604       ResultPtr aResult = *anEdgeShapes.begin();
 605       if (aResult.get()) {
 606         aRefAttr->setObject(aResult);
 607         return true; // the attribute feature has a point of intersection, so we do not replace it
 608       }
 609     }
 610   }
 611   return false;
 612 }
 613
 614 AISObjectPtr SketchPlugin_Trim::getAISObject(AISObjectPtr thePrevious)
 615 {
 616 #ifdef DEBUG_TRIM_METHODS
 617   std::cout << "SketchPlugin_Trim::getAISObject: " << data()->name() << std::endl;
 618 #endif
 619
 620   AISObjectPtr anAIS = thePrevious;
 621
 622   std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
 623   GeomShapePtr aPreviewShape = getSubShape(PREVIEW_OBJECT(), PREVIEW_POINT());
 624   if (aPreviewShape.get())
 625     aShapes.push_back(aPreviewShape);
 626   GeomShapePtr aSelectedShape = getSubShape(SELECTED_OBJECT(), SELECTED_POINT());
 627   if (aSelectedShape.get())
 628     aShapes.push_back(aSelectedShape);
 629
 630   if (aShapes.empty())
 631     return AISObjectPtr();
 632
 633   GeomShapePtr aBaseShape = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
 634   if (!aBaseShape.get())
 635     return AISObjectPtr();
 636
 637   if (aBaseShape.get()) {
 638     if (!anAIS)
 639       anAIS = AISObjectPtr(new GeomAPI_AISObject);
 640     anAIS->createShape(aBaseShape);
 641
 642     std::vector<int> aColor;
 643     aColor = Config_PropManager::color("Visualization", "operation_remove_feature_color");
 644     double aWidth = SketchPlugin_SketchEntity::SKETCH_LINE_WIDTH();
 645     int aLineStyle = SketchPlugin_SketchEntity::SKETCH_LINE_STYLE();
 646     anAIS->setColor(aColor[0], aColor[1], aColor[2]);
 647     // width when there is not base object should be extened in several points
 648     // in order to see this preview over highlight
 649     anAIS->setWidth(aWidth+4);
 650     anAIS->setLineStyle(aLineStyle);
 651   }
 652   else
 653     anAIS = AISObjectPtr();
 654
 655   return anAIS;
 656 }
 657
 658 GeomShapePtr SketchPlugin_Trim::getSubShape(const std::string& theObjectAttributeId,
 659                                             const std::string& thePointAttributeId)
 660 {
 661   GeomShapePtr aBaseShape;
 662
 663   AttributeReferencePtr anObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 664                                                        data()->attribute(theObjectAttributeId));
 665   ObjectPtr aBaseObject = anObjectAttr->value();
 666   if (!aBaseObject.get())
 667     return aBaseShape;
 668
 669   // point on feature
 670   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 671                                            data()->attribute(thePointAttributeId));
 672   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPointAttr->pnt();
 673   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = sketch()->to3D(anAttributePnt2d->x(),
 674                                                                anAttributePnt2d->y());
 675
 676   if (myCashedShapes.find(aBaseObject) == myCashedShapes.end())
 677     fillObjectShapes(aBaseObject, sketch()->data()->owner(), myCashedShapes, myObjectToPoints);
 678
 679   const std::set<GeomShapePtr>& aShapes = myCashedShapes[aBaseObject];
 680   if (!aShapes.empty()) {
 681     std::set<GeomShapePtr>::const_iterator anIt = aShapes.begin(), aLast = aShapes.end();
 682     for (; anIt != aLast; anIt++) {
 683       GeomShapePtr aShape = *anIt;
 684       std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
 685       if (ModelGeomAlgo_Point2D::isPointOnEdge(aShape, anAttributePnt, aProjectedPoint))
 686         aBaseShape = aShape;
 687     }
 688   }
 689   return aBaseShape;
 690 }
 691
 692 void SketchPlugin_Trim::getFeaturePoints(const FeaturePtr& theFeature,
 693                                          AttributePoint2DPtr& theStartPointAttr,
 694                                          AttributePoint2DPtr& theEndPointAttr)
 695 {
 696   std::string aFeatureKind = theFeature->getKind();
 697   std::string aStartAttributeName, anEndAttributeName;
 698   if (aFeatureKind == SketchPlugin_Line::ID()) {
 699     aStartAttributeName = SketchPlugin_Line::START_ID();
 700     anEndAttributeName = SketchPlugin_Line::END_ID();
 701   }
 702   else if (aFeatureKind == SketchPlugin_Arc::ID()) {
 703     aStartAttributeName = SketchPlugin_Arc::START_ID();
 704     anEndAttributeName = SketchPlugin_Arc::END_ID();
 705   }
 706   if (!aStartAttributeName.empty() && !anEndAttributeName.empty()) {
 707     theStartPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 708                                          theFeature->attribute(aStartAttributeName));
 709     theEndPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 710                                          theFeature->attribute(anEndAttributeName));
 711   }
 712 }
 713
 714 void SketchPlugin_Trim::getConstraints(std::set<FeaturePtr>& theFeaturesToDelete,
 715                                        std::set<FeaturePtr>& theFeaturesToUpdate)
 716 {
 717   std::shared_ptr<ModelAPI_Data> aData = data();
 718
 719   // Check the base objects are initialized.
 720   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 721                                          aData->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 722   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 723   ResultPtr aBaseFeatureResult = getFeatureResult(aBaseFeature);
 724
 725   std::set<AttributePtr> aRefsList = aBaseFeatureResult->data()->refsToMe();
 726   std::set<AttributePtr> aFRefsList = aBaseFeature->data()->refsToMe();
 727   aRefsList.insert(aFRefsList.begin(), aFRefsList.end());
 728
 729   std::set<AttributePtr>::const_iterator aIt;
 730   for (aIt = aRefsList.cbegin(); aIt != aRefsList.cend(); ++aIt) {
 731     std::shared_ptr<ModelAPI_Attribute> anAttr = (*aIt);
 732     FeaturePtr aRefFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 733     std::string aRefFeatureKind = aRefFeature->getKind();
 734     std::string anAttributeId = anAttr->id();
 735     if ((aRefFeatureKind == SketchPlugin_ConstraintMirror::ID() &&
 736          anAttributeId == SketchPlugin_ConstraintMirror::MIRROR_LIST_ID()) ||
 737         (aRefFeatureKind == SketchPlugin_MultiRotation::ID() &&
 738          anAttributeId == SketchPlugin_MultiRotation::ROTATION_LIST_ID()) ||
 739         (aRefFeatureKind == SketchPlugin_MultiTranslation::ID() &&
 740          anAttributeId == SketchPlugin_MultiTranslation::TRANSLATION_LIST_ID()) ||
 741         aRefFeatureKind == SketchPlugin_ConstraintMiddle::ID())
 742       theFeaturesToDelete.insert(aRefFeature);
 743     else if (aRefFeatureKind == SketchPlugin_ConstraintLength::ID())
 744       theFeaturesToUpdate.insert(aRefFeature);
 745   }
 746 }
 747
 748 void SketchPlugin_Trim::getRefAttributes(const FeaturePtr& theFeature,
 749                                     std::map<AttributePtr, std::list<AttributePtr> >& theRefs,
 750                                     std::list<AttributePtr>& theRefsToFeature)
 751 {
 752   theRefs.clear();
 753
 754   std::list<AttributePtr> aPointAttributes =
 755     theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 756   std::set<AttributePtr> aPointAttributesSet;
 757
 758   std::list<AttributePtr>::const_iterator aPIt =
 759     aPointAttributes.begin(), aPLast = aPointAttributes.end();
 760   for (; aPIt != aPLast; aPIt++)
 761     aPointAttributesSet.insert(*aPIt);
 762
 763   std::set<AttributePtr> aRefsAttributes = getFeatureResult(theFeature)->data()->refsToMe();
 764   std::set<AttributePtr> aFRefsList = theFeature->data()->refsToMe();
 765   aRefsAttributes.insert(aFRefsList.begin(), aFRefsList.end());
 766
 767   std::set<AttributePtr>::const_iterator aIt;
 768   for (aIt = aRefsAttributes.cbegin(); aIt != aRefsAttributes.cend(); ++aIt) {
 769     AttributePtr anAttr = (*aIt);
 770     FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttr->owner());
 771     if (anAttrFeature.get() != this &&
 772         anAttr.get() && anAttr->attributeType() == ModelAPI_AttributeRefAttr::typeId()) {
 773       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttr);
 774       if (!aRefAttr->isObject()) { /// find attributes referenced to feature point attributes
 775         AttributePtr anAttrInRef = aRefAttr->attr();
 776         if (anAttrInRef.get() &&
 777             aPointAttributesSet.find(anAttrInRef) != aPointAttributesSet.end()) {
 778           if (theRefs.find(anAttrInRef) != theRefs.end())
 779             theRefs[anAttrInRef].push_back(aRefAttr);
 780           else {
 781             std::list<AttributePtr> anAttrList;
 782             anAttrList.push_back(aRefAttr);
 783             theRefs[anAttrInRef] = anAttrList;
 784           }
 785         }
 786       }
 787       else { /// find attributes referenced to feature itself
 788         theRefsToFeature.push_back(anAttr);
 789       }
 790     }
 791   }
 792 }
 793
 794 void SketchPlugin_Trim::updateRefAttConstraints(
 795                     const std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes,
 796                     const std::set<std::pair<AttributePtr, AttributePtr> >& theModifiedAttributes,
 797                     std::set<FeaturePtr>& theFeaturesToDelete)
 798 {
 799 #ifdef DEBUG_TRIM
 800   std::cout << "SketchPlugin_Trim::updateRefAttConstraints" << std::endl;
 801 #endif
 802
 803   std::set<std::pair<AttributePtr, AttributePtr> >::const_iterator
 804     anIt = theModifiedAttributes.begin(),  aLast = theModifiedAttributes.end();
 805   for (; anIt != aLast; anIt++) {
 806     AttributePtr anAttribute = anIt->first;
 807
 808     /// not found in references
 809     if (theBaseRefAttributes.find(anAttribute) == theBaseRefAttributes.end())
 810       continue;
 811     std::list<AttributePtr> aRefAttributes = theBaseRefAttributes.at(anAttribute);
 812     std::list<AttributePtr>::const_iterator aRefIt = aRefAttributes.begin(),
 813                                             aRLast = aRefAttributes.end();
 814
 815     AttributePtr aNewAttribute = anIt->second;
 816     if (aNewAttribute.get()) {
 817       for (; aRefIt != aRLast; aRefIt++) {
 818         AttributeRefAttrPtr aRefAttr =
 819                         std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*aRefIt);
 820         if (aRefAttr.get()) {
 821             aRefAttr->setAttr(aNewAttribute);
 822         }
 823       }
 824     }
 825   }
 826 }
 827
 828 void SketchPlugin_Trim::removeReferencesToAttribute(const AttributePtr& theAttribute,
 829                   std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes)
 830 {
 831   /// not found in references
 832   if (theBaseRefAttributes.find(theAttribute) == theBaseRefAttributes.end())
 833     return;
 834
 835   std::list<AttributePtr> aRefAttributes = theBaseRefAttributes.at(theAttribute);
 836   std::list<AttributePtr>::const_iterator aRefIt = aRefAttributes.begin(),
 837                                           aRLast = aRefAttributes.end();
 838
 839   std::set<FeaturePtr> aFeaturesToDelete;
 840   for (; aRefIt != aRLast; aRefIt++) {
 841     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*aRefIt);
 842     if (aRefAttr.get()) {
 843       aFeaturesToDelete.insert(ModelAPI_Feature::feature(aRefAttr->owner()));
 844     }
 845   }
 846
 847 #ifdef DEBUG_TRIM
 848   // delete constraints
 849   if (aFeaturesToDelete.size() > 0) {
 850     std::cout << "removeReferencesToAttribute: " << std::endl;
 851     std::string aValue;
 852     for (std::set<FeaturePtr>::const_iterator anIt = aFeaturesToDelete.begin();
 853          anIt != aFeaturesToDelete.end(); anIt++) {
 854       FeaturePtr aFeature = *anIt;
 855       std::cout << aFeature->data()->name() << std::endl;
 856     }
 857   }
 858 #endif
 859   ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToDelete);
 860   Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_DELETED));
 861 }
 862
 863 void SketchPlugin_Trim::updateFeaturesAfterTrim(const std::set<FeaturePtr>& theFeaturesToUpdate)
 864 {
 865   std::set<FeaturePtr>::const_iterator anIt = theFeaturesToUpdate.begin(),
 866                                        aLast = theFeaturesToUpdate.end();
 867   for (; anIt != aLast; anIt++) {
 868     FeaturePtr aRefFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anIt);
 869     std::string aRefFeatureKind = aRefFeature->getKind();
 870     if (aRefFeatureKind == SketchPlugin_ConstraintLength::ID()) {
 871       std::shared_ptr<SketchPlugin_ConstraintLength> aLenghtFeature =
 872                               std::dynamic_pointer_cast<SketchPlugin_ConstraintLength>(*anIt);
 873       if (aLenghtFeature.get()) {
 874         std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
 875             ModelAPI_AttributeDouble>(aLenghtFeature->attribute(SketchPlugin_Constraint::VALUE()));
 876         double aValue;
 877         if (aLenghtFeature->computeLenghtValue(aValue) && aValueAttr.get())
 878           aValueAttr->setValue(aValue);
 879       }
 880     }
 881   }
 882 }
 883
 884 FeaturePtr SketchPlugin_Trim::trimLine(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 885                   const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 886                   std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes,
 887                   std::set<AttributePoint2DPtr>& thePoints,
 888                   std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 889 {
 890   FeaturePtr anNewFeature;
 891
 892   // Check the base objects are initialized.
 893   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 894                                         data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 895   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 896   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 897
 898   /// points of trim
 899   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 900   getFeaturePoints(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 901
 902   std::shared_ptr<GeomAPI_Pnt2d> aStartFeaturePoint = aStartPointAttrOfBase->pnt();
 903   std::shared_ptr<GeomAPI_Pnt2d> aLastFeaturePoint = anEndPointAttrOfBase->pnt();
 904
 905   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint = theStartShapePoint;
 906   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint = theLastShapePoint;
 907   arrangePointsOnLine(aStartPointAttrOfBase, anEndPointAttrOfBase,
 908                       aStartShapePoint, aLastShapePoint);
 909 #ifdef DEBUG_TRIM
 910   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
 911   if (aStartShapePoint.get())
 912     std::cout << "Start point: [" << aStartShapePoint->x() << ", " <<
 913                                        aStartShapePoint->y() << "]" << std::endl;
 914   std::cout << "1st point:   [" << aStartFeaturePoint->x() << ", " <<
 915                                    aStartFeaturePoint->y() << "]" << std::endl;
 916   if (aLastShapePoint.get())
 917     std::cout << "2st point:   [" << aLastShapePoint->x() << ", " <<
 918                                      aLastShapePoint->y() << "]" << std::endl;
 919   std::cout << "End point:   [" << aLastFeaturePoint->x() << ", " <<
 920                                    aLastFeaturePoint->y() << "]" << std::endl;
 921 #endif
 922
 923   bool isStartPoint = !aStartShapePoint.get() || aStartFeaturePoint->isEqual(aStartShapePoint);
 924   bool isLastPoint = !aLastShapePoint.get() || aLastFeaturePoint->isEqual(aLastShapePoint);
 925   if (isStartPoint || isLastPoint) {
 926     // result is one line: changed existing line
 927     std::string aModifiedAttribute = isStartPoint ? SketchPlugin_Line::START_ID()
 928                                                   : SketchPlugin_Line::END_ID();
 929     std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 930     if (aStartShapePoint.get() && aLastShapePoint.get())
 931       aPoint = isStartPoint ? aLastShapePoint : aStartShapePoint;
 932     else
 933       aPoint = aStartShapePoint.get() ? aStartShapePoint : aLastShapePoint;
 934
 935     // it is important to delete references before the feature modification because
 936     // if deletion will be after the feature modification, solver returns the feature back
 937     removeReferencesToAttribute(aBaseFeature->attribute(aModifiedAttribute),
 938                                 theBaseRefAttributes);
 939
 940     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aPoint);
 941     //theModifiedAttributes.insert(
 942     //  std::make_pair(aBaseFeature->attribute(aModifiedAttribute), AttributePtr()));
 943
 944     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 945                                (aBaseFeature->attribute(aModifiedAttribute)));
 946   }
 947   else {
 948     // result is two lines: start line point - start shape point,
 949     // last shape point - last line point
 950     // create second line
 951     anNewFeature = createLineFeature(aBaseFeature, aLastShapePoint, aLastFeaturePoint);
 952     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 953                                (anNewFeature->attribute(SketchPlugin_Line::START_ID())));
 954
 955     std::string aModifiedAttribute = SketchPlugin_Line::END_ID();
 956     theModifiedAttributes.insert(
 957       std::make_pair(aBaseFeature->attribute(aModifiedAttribute),
 958                                    anNewFeature->attribute(SketchPlugin_Line::END_ID())));
 959
 960     // modify base arc
 961     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aStartShapePoint);
 962
 963     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 964                                (aBaseFeature->attribute(aModifiedAttribute)));
 965
 966     // Collinear constraint for lines
 967     createConstraintForObjects(SketchPlugin_ConstraintCollinear::ID(),
 968                                getFeatureResult(aBaseFeature),
 969                                getFeatureResult(anNewFeature));
 970
 971   }
 972   return anNewFeature;
 973 }
 974
 975 FeaturePtr SketchPlugin_Trim::trimArc(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 976                  const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 977                  std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes,
 978                  std::set<AttributePoint2DPtr>& thePoints,
 979                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 980 {
 981   FeaturePtr anNewFeature;
 982   // Check the base objects are initialized.
 983   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 984                                         data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 985   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 986   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 987
 988   /// points of trim
 989   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 990   getFeaturePoints(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 991
 992   std::shared_ptr<GeomAPI_Pnt2d> aStartArcPoint = aStartPointAttrOfBase->pnt();
 993   std::shared_ptr<GeomAPI_Pnt2d> aLastArcPoint = anEndPointAttrOfBase->pnt();
 994
 995   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint = theStartShapePoint;
 996   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint = theLastShapePoint;
 997   arrangePointsOnArc(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase,
 998                      aStartShapePoint, aLastShapePoint);
 999 #ifdef DEBUG_TRIM
1000   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
1001   if (aStartShapePoint.get())
1002     std::cout << "Start shape point: [" << aStartShapePoint->x() << ", " <<
1003                                        aStartShapePoint->y() << "]" << std::endl;
1004   std::cout << "Start arc attribute point:   [" << aStartArcPoint->x() << ", " <<
1005                                    aStartArcPoint->y() << "]" << std::endl;
1006   if (aLastShapePoint.get())
1007     std::cout << "Last shape point:   [" << aLastShapePoint->x() << ", " <<
1008                                      aLastShapePoint->y() << "]" << std::endl;
1009   std::cout << "Last arc attribute point:   [" << aLastArcPoint->x() << ", " <<
1010                                    aLastArcPoint->y() << "]" << std::endl;
1011 #endif
1012
1013   bool isStartPoint = !aStartShapePoint.get() || aStartArcPoint->isEqual(aStartShapePoint);
1014   bool isLastPoint = !aLastShapePoint.get() || aLastArcPoint->isEqual(aLastShapePoint);
1015   if (isStartPoint || isLastPoint) {
1016     // result is one arc: changed existing arc
1017     std::string aModifiedAttribute = isStartPoint ? SketchPlugin_Arc::START_ID()
1018                                                   : SketchPlugin_Arc::END_ID();
1019     std::shared_ptr<GeomAPI_Pnt2d> aPoint;
1020     if (aStartShapePoint.get() && aLastShapePoint.get())
1021       aPoint = isStartPoint ? aLastShapePoint : aStartShapePoint;
1022     else
1023       aPoint = aStartShapePoint.get() ? aStartShapePoint : aLastShapePoint;
1024
1025     removeReferencesToAttribute(aBaseFeature->attribute(aModifiedAttribute),
1026                                 theBaseRefAttributes);
1027
1028     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aPoint);
1029
1030     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
1031                                (aBaseFeature->attribute(aModifiedAttribute)));
1032   }
1033   else {
1034     // result is two arcs: start arc point - start shape point, last shape point - last arc point
1035     // create second arc
1036     anNewFeature = createArcFeature(aBaseFeature, aLastShapePoint, aLastArcPoint);
1037     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
1038                                (anNewFeature->attribute(SketchPlugin_Arc::START_ID())));
1039
1040     std::string aModifiedAttribute = SketchPlugin_Arc::END_ID();
1041     theModifiedAttributes.insert(
1042       std::make_pair(aBaseFeature->attribute(aModifiedAttribute),
1043                                    anNewFeature->attribute(SketchPlugin_Arc::END_ID())));
1044
1045     // modify base arc
1046     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aStartShapePoint);
1047
1048     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
1049                                (aBaseFeature->attribute(aModifiedAttribute)));
1050
1051     // equal Radius constraint for arcs
1052     createConstraintForObjects(SketchPlugin_ConstraintEqual::ID(),
1053                                getFeatureResult(aBaseFeature),
1054                                getFeatureResult(anNewFeature));
1055     // coincident centers constraint
1056     createConstraint(SketchPlugin_ConstraintCoincidence::ID(),
1057                      aBaseFeature->attribute(SketchPlugin_Arc::CENTER_ID()),
1058                      anNewFeature->attribute(SketchPlugin_Arc::CENTER_ID()));
1059
1060 #ifdef DEBUG_TRIM
1061     std::cout << "Created arc on points:" << std::endl;
1062     std::cout << "Start shape point: [" << aStartShapePoint->x() << ", " <<
1063                                            aStartShapePoint->y() << "]" << std::endl;
1064 #endif
1065   }
1066   return anNewFeature;
1067 }
1068
1069 FeaturePtr SketchPlugin_Trim::trimCircle(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
1070                                    const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
1071                                    std::set<AttributePoint2DPtr>& thePoints,
1072                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
1073 {
1074   // Check the base objects are initialized.
1075   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
1076                                         data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
1077   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1078   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
1079
1080   /// points of trim
1081   //AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
1082   //getFeaturePoints(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
1083
1084   /// trim feature
1085   FeaturePtr anNewFeature = createArcFeature(aBaseFeature, theStartShapePoint, theLastShapePoint);
1086   // arc created by trim of circle is always correct, that means that it is not inversed
1087   anNewFeature->boolean(SketchPlugin_Arc::REVERSED_ID())->setValue(false);
1088
1089   theModifiedAttributes.insert(
1090     std::make_pair(aBaseFeature->attribute(SketchPlugin_Circle::CENTER_ID()),
1091                    anNewFeature->attribute(SketchPlugin_Arc::CENTER_ID())));
1092
1093   thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
1094                              (anNewFeature->attribute(SketchPlugin_Arc::START_ID())));
1095   thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
1096                              (anNewFeature->attribute(SketchPlugin_Arc::END_ID())));
1097
1098   return anNewFeature;
1099 }
1100
1101 void SketchPlugin_Trim::arrangePointsOnLine(const AttributePoint2DPtr& theStartPointAttr,
1102                                             const AttributePoint2DPtr& theEndPointAttr,
1103                                             std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
1104                                             std::shared_ptr<GeomAPI_Pnt2d>& theLastPoint) const
1105 {
1106   if (!theFirstPoint.get() || !theLastPoint.get())
1107     return;
1108
1109   // if first point is closer to last point, swap first and last values
1110   if (theStartPointAttr->pnt()->distance(theFirstPoint) >
1111       theStartPointAttr->pnt()->distance(theLastPoint)) {
1112     std::shared_ptr<GeomAPI_Pnt2d> aTmpPoint = theFirstPoint;
1113     theFirstPoint = theLastPoint;
1114     theLastPoint = aTmpPoint;
1115   }
1116 }
1117
1118 void SketchPlugin_Trim::arrangePointsOnArc(const FeaturePtr& theArc,
1119                                   const AttributePoint2DPtr& theStartPointAttr,
1120                                   const AttributePoint2DPtr& theEndPointAttr,
1121                                   std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
1122                                   std::shared_ptr<GeomAPI_Pnt2d>& theSecondPoint) const
1123 {
1124   if (!theFirstPoint.get() || !theSecondPoint.get())
1125     return;
1126
1127   static const double anAngleTol = 1.e-12;
1128
1129   std::shared_ptr<GeomAPI_Pnt2d> aCenter = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1130       theArc->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
1131   bool isReversed = theArc->boolean(SketchPlugin_Arc::REVERSED_ID())->value();
1132
1133   // collect directions to each point
1134   std::shared_ptr<GeomAPI_Dir2d> aStartDir(
1135       new GeomAPI_Dir2d(theStartPointAttr->pnt()->xy()->decreased(aCenter->xy())));
1136   std::shared_ptr<GeomAPI_Dir2d> aFirstPtDir(
1137       new GeomAPI_Dir2d(theFirstPoint->xy()->decreased(aCenter->xy())));
1138   std::shared_ptr<GeomAPI_Dir2d> aSecondPtDir(
1139       new GeomAPI_Dir2d(theSecondPoint->xy()->decreased(aCenter->xy())));
1140
1141   // sort points by their angular values
1142   double aFirstPtAngle = aStartDir->angle(aFirstPtDir);
1143   double aSecondPtAngle = aStartDir->angle(aSecondPtDir);
1144   double aPeriod = isReversed ? -2.0 * PI : 2.0 * PI;
1145   if (fabs(aFirstPtAngle) > anAngleTol && isReversed == (aFirstPtAngle > 0.))
1146     aFirstPtAngle += aPeriod;
1147   if (fabs(aSecondPtAngle) > anAngleTol && isReversed == (aSecondPtAngle > 0.))
1148     aSecondPtAngle += aPeriod;
1149
1150   if (fabs(aFirstPtAngle) > fabs(aSecondPtAngle)) {
1151     std::shared_ptr<GeomAPI_Pnt2d> aTmpPoint = theFirstPoint;
1152     theFirstPoint = theSecondPoint;
1153     theSecondPoint = aTmpPoint;
1154   }
1155 }
1156
1157 void SketchPlugin_Trim::fillPointAttribute(const AttributePtr& theModifiedAttribute,
1158                                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
1159 {
1160   std::string anAttributeType = theModifiedAttribute->attributeType();
1161   if (anAttributeType == GeomDataAPI_Point2D::typeId()) {
1162     AttributePoint2DPtr aModifiedAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1163                                               theModifiedAttribute);
1164     aModifiedAttribute->setValue(thePoint);
1165
1166 #ifdef DEBUG_TRIM
1167     FeaturePtr aFeature = ModelAPI_Feature::feature(theModifiedAttribute->owner());
1168     std::cout << "<fillPointAttribute[" << aFeature->data()->name() << ": " <<
1169       theModifiedAttribute->id() <<
1170       "]> => Pnt2d - [" << thePoint->x() << ", " << thePoint->y() << "]" << std::endl;
1171 #endif
1172   }
1173 }
1174
1175
1176 void SketchPlugin_Trim::fillAttribute(const AttributePtr& theModifiedAttribute,
1177                                       const AttributePtr& theSourceAttribute)
1178 {
1179   std::string anAttributeType = theModifiedAttribute->attributeType();
1180   if (anAttributeType == GeomDataAPI_Point2D::typeId()) {
1181     AttributePoint2DPtr aModifiedAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1182                                               theModifiedAttribute);
1183     AttributePoint2DPtr aSourceAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1184                                               theSourceAttribute);
1185
1186     if (aModifiedAttribute.get() && aSourceAttribute.get())
1187       aModifiedAttribute->setValue(aSourceAttribute->pnt());
1188   }
1189   else if (anAttributeType == ModelAPI_AttributeBoolean::typeId()) {
1190     AttributeBooleanPtr aModifiedAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
1191                                               theModifiedAttribute);
1192     AttributeBooleanPtr aSourceAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
1193                                               theSourceAttribute);
1194
1195     if (aModifiedAttribute.get() && aSourceAttribute.get())
1196       aModifiedAttribute->setValue(aSourceAttribute->value());
1197   }
1198   else if (anAttributeType == ModelAPI_AttributeRefAttr::typeId()) {
1199     AttributeRefAttrPtr aRefAttributeToFill = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1200                                                                              theModifiedAttribute);
1201     AttributeRefAttrPtr aSourceRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1202                                          theSourceAttribute);
1203     if (!aSourceRefAttr.get())
1204       aRefAttributeToFill->setAttr(theSourceAttribute);
1205     else {
1206       if (aSourceRefAttr->isObject())
1207         aRefAttributeToFill->setObject(aSourceRefAttr->object());
1208       else
1209         aRefAttributeToFill->setAttr(aSourceRefAttr->attr());
1210     }
1211   }
1212 }
1213
1214 FeaturePtr SketchPlugin_Trim::createLineFeature(const FeaturePtr& theBaseFeature,
1215                                         const std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
1216                                         const std::shared_ptr<GeomAPI_Pnt2d>& theSecondPoint)
1217 {
1218 #ifdef DEBUG_TRIM
1219   std::cout << "---- createLineFeature ---" << std::endl;
1220 #endif
1221
1222   FeaturePtr aFeature;
1223   SketchPlugin_Sketch* aSketch = sketch();
1224   if (!aSketch || !theBaseFeature.get())
1225     return aFeature;
1226
1227   aFeature = aSketch->addFeature(SketchPlugin_Line::ID());
1228
1229   fillPointAttribute(aFeature->attribute(SketchPlugin_Line::START_ID()), theFirstPoint);
1230   fillPointAttribute(aFeature->attribute(SketchPlugin_Line::END_ID()), theSecondPoint);
1231
1232   fillAttribute(aFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()),
1233                 theBaseFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()));
1234
1235   aFeature->execute(); // to obtain result
1236
1237 #ifdef DEBUG_TRIM
1238   std::cout << "---- createLineFeature:end ---" << std::endl;
1239 #endif
1240
1241   return aFeature;
1242 }
1243
1244 FeaturePtr SketchPlugin_Trim::createArcFeature(const FeaturePtr& theBaseFeature,
1245                                                const std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
1246                                                const std::shared_ptr<GeomAPI_Pnt2d>& theSecondPoint)
1247 {
1248   FeaturePtr aFeature;
1249   SketchPlugin_Sketch* aSketch = sketch();
1250   if (!aSketch || !theBaseFeature.get())
1251     return aFeature;
1252
1253   std::string aCenterAttributeId;
1254   if (theBaseFeature->getKind() == SketchPlugin_Arc::ID())
1255     aCenterAttributeId = SketchPlugin_Arc::CENTER_ID();
1256   else if (theBaseFeature->getKind() == SketchPlugin_Circle::ID())
1257     aCenterAttributeId = SketchPlugin_Circle::CENTER_ID();
1258
1259   if (aCenterAttributeId.empty())
1260     return aFeature;
1261
1262 #ifdef DEBUG_TRIM
1263   std::cout << "---- createArcFeature ---" << std::endl;
1264 #endif
1265
1266   aFeature = aSketch->addFeature(SketchPlugin_Arc::ID());
1267   // update fillet arc: make the arc correct for sure, so, it is not needed to process
1268   // the "attribute updated"
1269   // by arc; moreover, it may cause cyclicity in hte mechanism of updater
1270   bool aWasBlocked = aFeature->data()->blockSendAttributeUpdated(true);
1271
1272   fillAttribute(aFeature->attribute(SketchPlugin_Arc::CENTER_ID()),
1273                 theBaseFeature->attribute(aCenterAttributeId));
1274   fillPointAttribute(aFeature->attribute(SketchPlugin_Arc::START_ID()), theFirstPoint);
1275   fillPointAttribute(aFeature->attribute(SketchPlugin_Arc::END_ID()), theSecondPoint);
1276
1277   fillAttribute(aFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()),
1278                 theBaseFeature->attribute(SketchPlugin_SketchEntity::AUXILIARY_ID()));
1279
1280   /// fill referersed state of created arc as it is on the base arc
1281   if (theBaseFeature->getKind() == SketchPlugin_Arc::ID()) {
1282     bool aReversed = theBaseFeature->boolean(SketchPlugin_Arc::REVERSED_ID())->value();
1283     aFeature->boolean(SketchPlugin_Arc::REVERSED_ID())->setValue(aReversed);
1284   }
1285   aFeature->execute(); // to obtain result (need to calculate arc parameters before sending Update)
1286   aFeature->data()->blockSendAttributeUpdated(aWasBlocked);
1287
1288   #ifdef DEBUG_TRIM
1289   std::cout << "---- createArcFeature:end ---" << std::endl;
1290   #endif
1291
1292   return aFeature;
1293 }
1294
1295 FeaturePtr SketchPlugin_Trim::createConstraint(const std::string& theConstraintId,
1296                                                const AttributePtr& theFirstAttribute,
1297                                                const AttributePtr& theSecondAttribute)
1298 {
1299   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
1300   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1301                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
1302   aRefAttr->setAttr(theFirstAttribute);
1303
1304   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1305                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
1306   aRefAttr->setAttr(theSecondAttribute);
1307
1308 #ifdef DEBUG_TRIM
1309   std::cout << "<createConstraint to attribute> :"
1310             << "first attribute - " << theFirstAttribute->id()
1311             << "second attribute - " << theSecondAttribute->id()
1312             << std::endl;
1313 #endif
1314
1315   return aConstraint;
1316 }
1317
1318 FeaturePtr SketchPlugin_Trim::createConstraintToObject(const std::string& theConstraintId,
1319                                                const AttributePtr& theFirstAttribute,
1320                                                const ObjectPtr& theSecondObject)
1321 {
1322   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
1323   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1324                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
1325   aRefAttr->setAttr(theFirstAttribute);
1326
1327   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1328                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
1329   aRefAttr->setObject(theSecondObject);
1330
1331 #ifdef DEBUG_TRIM
1332   std::cout << "<createConstraint to attribute> :"
1333             << "first attribute - " << theFirstAttribute->id()
1334             << "second object - " << ModelAPI_Feature::feature(theSecondObject)->getKind()
1335             << std::endl;
1336 #endif
1337
1338   return aConstraint;
1339 }
1340
1341 FeaturePtr SketchPlugin_Trim::createConstraintForObjects(
1342                                                     const std::string& theConstraintId,
1343                                                     const ObjectPtr& theFirstObject,
1344                                                     const ObjectPtr& theSecondObject)
1345 {
1346   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
1347   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1348                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
1349   aRefAttr->setObject(theFirstObject);
1350
1351   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1352                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
1353   aRefAttr->setObject(theSecondObject);
1354
1355   return aConstraint;
1356 }
1357
1358 std::shared_ptr<ModelAPI_Result> SketchPlugin_Trim::getFeatureResult(
1359                                     const std::shared_ptr<ModelAPI_Feature>& theFeature)
1360 {
1361   std::shared_ptr<ModelAPI_Result> aResult;
1362
1363   std::string aFeatureKind = theFeature->getKind();
1364   if (aFeatureKind == SketchPlugin_Line::ID())
1365     aResult = theFeature->firstResult();
1366   else if (aFeatureKind == SketchPlugin_Arc::ID())
1367     aResult = theFeature->lastResult();
1368   else if (aFeatureKind == SketchPlugin_Circle::ID())
1369     aResult = theFeature->lastResult();
1370
1371   return aResult;
1372 }
1373
1374 //********************************************************************
1375 void SketchPlugin_Trim::fillObjectShapes(const ObjectPtr& theObject,
1376                 const ObjectPtr& theSketch,
1377                 std::map<ObjectPtr, std::set<GeomShapePtr> >& theCashedShapes,
1378                 std::map<ObjectPtr, PointToRefsMap>& theObjectToPoints)
1379 {
1380   PointToRefsMap aPointsInfo;
1381
1382   std::set<std::shared_ptr<GeomAPI_Shape> > aShapes;
1383   std::map<std::shared_ptr<GeomAPI_Pnt>,
1384                            std::list< AttributePoint2DPtr > > aPointToAttributes;
1385   std::map<std::shared_ptr<GeomAPI_Pnt>,
1386                            std::list< ObjectPtr > > aPointToObjects;
1387
1388   std::set<AttributePoint2DPtr > aRefAttributes;
1389   // current feature
1390   FeaturePtr aFeature = ModelAPI_Feature::feature(theObject);
1391   std::set<ResultPtr> anEdgeShapes;
1392   // edges on feature
1393   ModelGeomAlgo_Shape::shapesOfType(aFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
1394   if (!anEdgeShapes.empty()) {
1395     GeomShapePtr aFeatureShape = (*anEdgeShapes.begin())->shape();
1396
1397     // coincidences to the feature
1398     ModelGeomAlgo_Point2D::getPointsOfReference(aFeature, SketchPlugin_ConstraintCoincidence::ID(),
1399                          aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
1400     // layed on feature coincidences to divide it on several shapes
1401     std::shared_ptr<ModelAPI_Data> aData = theSketch->data();
1402     std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
1403         aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
1404     std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1405         aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
1406     std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1407         aData->attribute(SketchPlugin_Sketch::NORM_ID()));
1408     std::shared_ptr<GeomAPI_Dir> aY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
1409
1410     ModelGeomAlgo_Point2D::getPointsInsideShape(aFeatureShape, aRefAttributes, aC->pnt(),
1411                                                 aX->dir(), aY, aPointsInfo);
1412
1413     std::list<FeaturePtr> aFeatures;
1414     CompositeFeaturePtr aSketchComposite =
1415                          std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theSketch);
1416     for (int i = 0; i < aSketchComposite->numberOfSubs(); i++) {
1417       FeaturePtr aFeature = aSketchComposite->subFeature(i);
1418       if (aFeature.get() && aFeature->getKind() != SketchPlugin_Projection::ID())
1419         aFeatures.push_back(aFeature);
1420     }
1421     ModelGeomAlgo_Point2D::getPointsIntersectedShape(aFeature, aFeatures, aPointsInfo);
1422
1423     GeomAlgoAPI_ShapeTools::splitShape(aFeatureShape, aPointsInfo, aShapes);
1424   }
1425   theObjectToPoints[theObject] = aPointsInfo;
1426   theCashedShapes[theObject] = aShapes;
1427 }