src/SketchPlugin/SketchPlugin_Trim.cpp

   1 // Copyright (C) 2014-2019  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 email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "SketchPlugin_Trim.h"
  21
  22 #include <GeomAPI_Dir2d.h>
  23 #include <GeomAPI_Edge.h>
  24 #include <GeomAPI_Pnt2d.h>
  25 #include <GeomAPI_XY.h>
  26 #include <GeomDataAPI_Point2D.h>
  27 #include <GeomAlgoAPI_ShapeTools.h>
  28
  29 #include <ModelAPI_AttributeReference.h>
  30 #include <ModelAPI_AttributeString.h>
  31 #include <ModelAPI_AttributeRefAttr.h>
  32 #include <ModelAPI_Tools.h>
  33 #include <ModelAPI_AttributeBoolean.h>
  34
  35 #include <ModelAPI_Validator.h>
  36 #include <ModelAPI_Session.h>
  37 #include <ModelAPI_AttributeDouble.h>
  38
  39 #include <ModelGeomAlgo_Shape.h>
  40
  41 #include <SketchPlugin_Arc.h>
  42 #include <SketchPlugin_ConstraintMiddle.h>
  43 #include <SketchPlugin_Circle.h>
  44 #include <SketchPlugin_ConstraintCoincidence.h>
  45 #include <SketchPlugin_ConstraintEqual.h>
  46 #include <SketchPlugin_ConstraintTangent.h>
  47 #include <SketchPlugin_ConstraintLength.h>
  48 #include <SketchPlugin_ConstraintMirror.h>
  49 #include <SketchPlugin_ConstraintCollinear.h>
  50 #include <SketchPlugin_Ellipse.h>
  51 #include <SketchPlugin_EllipticArc.h>
  52 #include <SketchPlugin_Line.h>
  53 #include <SketchPlugin_MultiRotation.h>
  54 #include <SketchPlugin_MultiTranslation.h>
  55 #include <SketchPlugin_Point.h>
  56
  57 #include <ModelAPI_EventReentrantMessage.h>
  58
  59 #include <ModelAPI_Events.h>
  60 #include <SketchPlugin_Line.h>
  61 #include <SketchPlugin_Arc.h>
  62 #include <SketchPlugin_Circle.h>
  63
  64 #include <ModelGeomAlgo_Point2D.h>
  65 #include <Events_Loop.h>
  66
  67 #include <cmath>
  68
  69 #ifdef DEBUG_TRIM
  70 #include <iostream>
  71 #endif
  72
  73 #ifdef DEBUG_TRIM_METHODS
  74 #include <iostream>
  75 #endif
  76
  77 static const double PI = 3.141592653589793238463;
  78
  79 static const std::string OPERATION_HIGHLIGHT_COLOR() { return "128, 0, 0"; }
  80 static const std::string OPERATION_REMOVE_FEATURE_COLOR() { return "255, 174, 201"; }
  81
  82 SketchPlugin_Trim::SketchPlugin_Trim()
  83 {
  84 }
  85
  86 void SketchPlugin_Trim::initAttributes()
  87 {
  88   data()->addAttribute(SELECTED_OBJECT(), ModelAPI_AttributeReference::typeId());
  89   data()->addAttribute(SELECTED_POINT(), GeomDataAPI_Point2D::typeId());
  90
  91   data()->addAttribute(PREVIEW_POINT(), GeomDataAPI_Point2D::typeId());
  92   data()->addAttribute(PREVIEW_OBJECT(), ModelAPI_AttributeReference::typeId());
  93
  94   data()->attribute(PREVIEW_POINT())->setIsArgument(false);
  95   data()->attribute(SELECTED_POINT())->setIsArgument(false);
  96   data()->attribute(PREVIEW_OBJECT())->setIsArgument(false);
  97
  98   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), PREVIEW_POINT());
  99   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), PREVIEW_OBJECT());
 100 }
 101
 102 void SketchPlugin_Trim::findShapePoints(const std::string& theObjectAttributeId,
 103                                         const std::string& thePointAttributeId,
 104                                         std::shared_ptr<GeomAPI_Pnt>& aStartPoint,
 105                                         std::shared_ptr<GeomAPI_Pnt>& aLastPoint)
 106 {
 107   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 108                                             data()->attribute(theObjectAttributeId));
 109   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 110
 111   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 112                                               data()->attribute(thePointAttributeId));
 113   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
 114   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = sketch()->to3D(anAttributePnt2d->x(),
 115                                                                anAttributePnt2d->y());
 116
 117   if (myCashedShapes.find(aBaseObject) == myCashedShapes.end()) {
 118     SketchPlugin_SegmentationTools::fillObjectShapes(
 119         this, aBaseObject, myCashedShapes, myObjectToPoints);
 120   }
 121
 122   const std::set<GeomShapePtr>& aShapes = myCashedShapes[aBaseObject];
 123   if (!aShapes.empty()) {
 124     std::set<GeomShapePtr>::const_iterator anIt = aShapes.begin(), aLast = aShapes.end();
 125     for (; anIt != aLast; anIt++) {
 126       GeomShapePtr aBaseShape = *anIt;
 127       std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
 128       if (ModelGeomAlgo_Point2D::isPointOnEdge(aBaseShape, anAttributePnt, aProjectedPoint)) {
 129
 130         if (aBaseShape->shapeType() == GeomAPI_Shape::EDGE) {
 131           std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aBaseShape));
 132           //GeomAPI_Shape::Orientation anOrientation = anEdge->orientation();
 133           //if (anOrientation == GeomAPI_Shape::REVERSED) {
 134             aStartPoint = anEdge->lastPoint();
 135             aLastPoint = anEdge->firstPoint();
 136           //}
 137           //else {
 138             //aStartPoint = anEdge->firstPoint();
 139             //aLastPoint = anEdge->lastPoint();
 140           //}
 141         }
 142       }
 143     }
 144   }
 145 #ifdef DEBUG_TRIM
 146   std::cout << "<findShapePoints> => "
 147     << std::endl << "Attribute point: "
 148     << anAttributePnt->x() << ", " << anAttributePnt->y() << ", " << anAttributePnt->z() << "]"
 149     << std::endl << "Start Point: ["
 150     << aStartPoint->x() << ", " << aStartPoint->y() << ", " << aStartPoint->z() << "]"
 151     << std::endl << "Last Point: ["
 152     << aLastPoint->x() << ", " << aLastPoint->y() << ", " << aLastPoint->z() << "]"
 153     << std::endl;
 154 #endif
 155 }
 156
 157 std::shared_ptr<GeomAPI_Pnt2d> SketchPlugin_Trim::convertPoint(
 158                                                    const std::shared_ptr<GeomAPI_Pnt>& thePoint)
 159 {
 160   std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 161   if (!thePoint.get())
 162     return aPoint;
 163
 164   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 165                                         data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 166   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 167   if (myObjectToPoints.find(aBaseObject) == myObjectToPoints.end()) {
 168     SketchPlugin_SegmentationTools::fillObjectShapes(
 169         this, aBaseObject, myCashedShapes, myObjectToPoints);
 170   }
 171
 172   bool aFound = false;
 173   const GeomAlgoAPI_ShapeTools::PointToRefsMap& aRefsMap = myObjectToPoints.at(aBaseObject);
 174   for (GeomAlgoAPI_ShapeTools::PointToRefsMap::const_iterator aPointIt = aRefsMap.begin();
 175        aPointIt != aRefsMap.end() && !aFound; aPointIt++) {
 176     if (aPointIt->first->isEqual(thePoint)) {
 177       const std::pair<std::list<AttributePoint2DPtr >,
 178                std::list<ObjectPtr > >& anInfo = aPointIt->second;
 179       const std::list<AttributePoint2DPtr >& anAttributes = anInfo.first;
 180       if (!anAttributes.empty()) {
 181         aPoint = anAttributes.front()->pnt();
 182         aFound = true;
 183       }
 184       else {
 185         aPoint = sketch()->to2D(thePoint);
 186         aFound = true;
 187       }
 188     }
 189   }
 190   if (!aFound) {
 191     // returns an end of the shape to define direction of split if feature's attribute
 192     // participates
 193     aPoint = sketch()->to2D(thePoint);
 194   }
 195   return aPoint;
 196 }
 197
 198 void SketchPlugin_Trim::execute()
 199 {
 200 #ifdef DEBUG_TRIM_METHODS
 201   std::cout << "SketchPlugin_Trim::execute: " << data()->name() << std::endl;
 202 #endif
 203
 204   SketchPlugin_Sketch* aSketch = sketch();
 205   if (!aSketch) {
 206     setError("Error: Sketch object is empty.");
 207     return;
 208   }
 209
 210   // Check the base objects are initialized.
 211   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 212                                         data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 213   if(!aBaseObjectAttr->isInitialized()) {
 214     setError("Error: Base object is not initialized.");
 215     return;
 216   }
 217   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 218   if (!aBaseObject.get()) {
 219     setError("Error: Base object is not initialized.");
 220     return;
 221   }
 222   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 223
 224   /// Remove reference of this feature to feature used in preview, it is not necessary anymore
 225   /// as trim will be removed after execute
 226   AttributeReferencePtr aPreviewObjectAttr =
 227                      std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 228                      data()->attribute(SketchPlugin_Trim::PREVIEW_OBJECT()));
 229
 230   ObjectPtr aPreviewObject = aPreviewObjectAttr->value();
 231   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 232                                            data()->attribute(PREVIEW_POINT()));
 233   std::shared_ptr<GeomAPI_Pnt2d> aPreviewPnt2d = aPoint->pnt();
 234   // nullify pointer of preview attribute
 235   aPreviewObjectAttr->setValue(ResultPtr());
 236
 237   bool anIsEqualPreviewAndSelected = aPreviewObject == aBaseObject;
 238
 239   /// points of trim
 240   std::shared_ptr<GeomAPI_Pnt> aStartShapePoint, aLastShapePoint;
 241 #ifdef DEBUG_TRIM
 242   std::cout << " Base Feature: " << aBaseFeature->data()->name() << std::endl;
 243 #endif
 244   findShapePoints(SELECTED_OBJECT(), SELECTED_POINT(), aStartShapePoint, aLastShapePoint);
 245   if (!aStartShapePoint || !aLastShapePoint) {
 246     setError("Error: Selected point is not placed on any edge");
 247     return;
 248   }
 249
 250   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint2d = convertPoint(aStartShapePoint);
 251   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint2d = convertPoint(aLastShapePoint);
 252   /// find features that should be deleted (e.g. Middle Point) or updated (e.g. Length)
 253   std::set<FeaturePtr> aFeaturesToDelete, aFeaturesToUpdate;
 254   getConstraints(aFeaturesToDelete, aFeaturesToUpdate);
 255   // find references(attributes and features) to the base feature
 256   std::map<AttributePtr, std::list<AttributePtr> > aBaseRefAttributes;
 257   std::list<AttributePtr> aRefsToFeature;
 258   SketchPlugin_SegmentationTools::getRefAttributes(
 259       aBaseFeature, aBaseRefAttributes, aRefsToFeature);
 260 #ifdef DEBUG_TRIM
 261   std::cout << "---- getRefAttributes ----" << std::endl;
 262   std::map<AttributePtr, std::list<AttributePtr> >::const_iterator
 263     aRefIt = aBaseRefAttributes.begin(), aRefLast = aBaseRefAttributes.end();
 264   std::cout << std::endl << "References to attributes of base feature [" <<
 265     aBaseRefAttributes.size() << "]" << std::endl;
 266   for (; aRefIt != aRefLast; aRefIt++) {
 267     AttributePtr aBaseAttr = aRefIt->first;
 268     std::list<AttributePtr> aRefAttributes = aRefIt->second;
 269     std::string aRefsInfo;
 270     std::list<AttributePtr>::const_iterator aRefAttrIt = aRefAttributes.begin(),
 271                                             aRefAttrLast = aRefAttributes.end();
 272     for (; aRefAttrIt != aRefAttrLast; aRefAttrIt++) {
 273       if (!aRefsInfo.empty())
 274         aRefsInfo.append(",");
 275       AttributePtr aRAttr = *aRefAttrIt;
 276       aRefsInfo.append(aRAttr->id());
 277       FeaturePtr aRFeature = ModelAPI_Feature::feature(aRAttr->owner());
 278       aRefsInfo.append("(" + aRFeature->name() + ") ");
 279     }
 280     std::shared_ptr<GeomDataAPI_Point2D> aPointAttr =
 281       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aBaseAttr);
 282     std::cout << aPointAttr->id().c_str() <<
 283       ": " << "[" << aRefAttributes.size() << "] " << aRefsInfo << std::endl;
 284   }
 285   std::cout << std::endl;
 286   std::cout << std::endl << "References to base feature [" <<
 287     aRefsToFeature.size() << "]" << std::endl;
 288   std::list<AttributePtr>::const_iterator aRefAttrIt = aRefsToFeature.begin(),
 289                                           aRefAttrLast = aRefsToFeature.end();
 290   std::string aRefsInfo;
 291   for (; aRefAttrIt != aRefAttrLast; aRefAttrIt++) {
 292     if (!aRefsInfo.empty())
 293       aRefsInfo.append(",");
 294     AttributePtr aRAttr = *aRefAttrIt;
 295     aRefsInfo.append(aRAttr->id());
 296     FeaturePtr aRFeature = ModelAPI_Feature::feature(aRAttr->owner());
 297     aRefsInfo.append("(" + aRFeature->name() + ") ");
 298   }
 299   std::cout << "[" << aRefsToFeature.size() << "] " << aRefsInfo << std::endl;
 300   std::cout << "---- getRefAttributes:end ----" << std::endl;
 301 #endif
 302
 303   keepCurrentFeature();
 304
 305   std::set<AttributePoint2DPtr> aFurtherCoincidences;
 306   std::set<std::pair<AttributePtr, AttributePtr>> aModifiedAttributes;
 307   const std::string& aKind = aBaseFeature->getKind();
 308   FeaturePtr aReplacingFeature, aNewFeature;
 309   if (aKind == SketchPlugin_Circle::ID() ||
 310       aKind == SketchPlugin_Ellipse::ID()) {
 311     aReplacingFeature = trimClosed(aStartShapePoint2d, aLastShapePoint2d,
 312                aFurtherCoincidences, aModifiedAttributes);
 313
 314     aFeaturesToDelete.insert(aBaseFeature);
 315     // as circle is removed, erase it from dependencies(arguments) of this feature
 316     // otherwise Trim feature will be removed with the circle before
 317     // this operation is finished
 318     aBaseObjectAttr->setObject(ResultPtr());
 319   }
 320   else if (aKind == SketchPlugin_Line::ID()) {
 321     aNewFeature = trimLine(aStartShapePoint2d, aLastShapePoint2d, aBaseRefAttributes,
 322                            aFurtherCoincidences, aModifiedAttributes);
 323   }
 324   else if (aKind == SketchPlugin_Arc::ID()) {
 325     aNewFeature = trimArc(aStartShapePoint2d, aLastShapePoint2d, aBaseRefAttributes,
 326                           aFurtherCoincidences, aModifiedAttributes);
 327   }
 328   else if (aKind == SketchPlugin_EllipticArc::ID()) {
 329     aNewFeature = trimEllipticArc(aStartShapePoint2d, aLastShapePoint2d, aBaseRefAttributes,
 330                           aFurtherCoincidences, aModifiedAttributes);
 331   }
 332
 333   restoreCurrentFeature();
 334
 335   // constraints to end points of trim feature
 336   if (myObjectToPoints.find(aBaseObject) == myObjectToPoints.end()) {
 337     SketchPlugin_SegmentationTools::fillObjectShapes(
 338         this, aBaseObject, myCashedShapes, myObjectToPoints);
 339   }
 340
 341   // create coincidence to objects, intersected the base object
 342   const GeomAlgoAPI_ShapeTools::PointToRefsMap& aRefsMap = myObjectToPoints.at(aBaseObject);
 343   for (std::set<AttributePoint2DPtr>::const_iterator anIt = aFurtherCoincidences.begin(),
 344                                                      aLast = aFurtherCoincidences.end();
 345        anIt != aLast; anIt++) {
 346     AttributePoint2DPtr aPointAttribute = (*anIt);
 347     std::shared_ptr<GeomAPI_Pnt2d> aPoint2d = aPointAttribute->pnt();
 348
 349 #ifdef DEBUG_TRIM
 350     std::cout << "<compare Points> => " << std::endl
 351             << "aPoint2d: [" << aPoint2d->x() << ", " << aPoint2d->y() << "]" << std::endl;
 352     if (aStartShapePoint2d.get())
 353       std::cout << "Start Point: [" << aStartShapePoint2d->x() << ", " << aStartShapePoint2d->y()
 354                 << "]" << std::endl;
 355     if (aLastShapePoint2d.get())
 356       std::cout << "Last Point: [" << aLastShapePoint2d->x() << ", " << aLastShapePoint2d->y()
 357                 << "]" << std::endl;
 358 #endif
 359
 360     std::shared_ptr<GeomAPI_Pnt> aPoint;
 361     if (aStartShapePoint2d.get() && aPoint2d->isEqual(aStartShapePoint2d))
 362       aPoint = aStartShapePoint;
 363     else if (aLastShapePoint2d.get() && aPoint2d->isEqual(aLastShapePoint2d))
 364       aPoint = aLastShapePoint;
 365
 366     if (!aPoint.get())
 367       continue;
 368
 369     std::pair<std::list<AttributePoint2DPtr >, std::list<ObjectPtr > > anInfo;
 370     for (GeomAlgoAPI_ShapeTools::PointToRefsMap::const_iterator aRefIt = aRefsMap.begin();
 371          aRefIt != aRefsMap.end(); aRefIt++)
 372     {
 373       if (aRefIt->first->isEqual(aPoint)) {
 374         anInfo = aRefIt->second;
 375         break;
 376       }
 377     }
 378     const std::list<ObjectPtr>& anObjects = anInfo.second;
 379     for (std::list<ObjectPtr>::const_iterator anObjectIt = anObjects.begin();
 380       anObjectIt != anObjects.end(); anObjectIt++) {
 381       SketchPlugin_Tools::createConstraintAttrObject(sketch(),
 382             SketchPlugin_ConstraintCoincidence::ID(),
 383             aPointAttribute, *anObjectIt);
 384     }
 385   }
 386
 387   // move constraints from base feature to replacing feature: ignore coincidences to feature
 388   // if attributes of coincidence participated in split
 389   ResultPtr aReplacingResult;
 390   if (aReplacingFeature.get()) {
 391     aReplacingFeature->execute(); // need it to obtain result
 392     aReplacingResult = aReplacingFeature->lastResult();
 393   }
 394   for(std::list<AttributePtr>::const_iterator anIt = aRefsToFeature.begin(),
 395                                           aLast = aRefsToFeature.end();
 396       anIt != aLast; anIt++) {
 397     AttributePtr anAttribute = *anIt;
 398
 399     if (setCoincidenceToAttribute(anAttribute, aFurtherCoincidences, aFeaturesToDelete))
 400       continue;
 401
 402     // move tangency constraint to the nearest feature if possible
 403     if (aNewFeature.get() && moveTangency(anAttribute, aNewFeature))
 404       continue;
 405
 406     if (aReplacingResult.get()) {
 407       AttributeRefAttrPtr aRefAttr =
 408           std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttribute);
 409       if (aRefAttr.get())
 410         aRefAttr->setObject(aReplacingResult);
 411       else {
 412         AttributeReferencePtr aReferenceAttr =
 413                              std::dynamic_pointer_cast<ModelAPI_AttributeReference>(anAttribute);
 414         if (aReferenceAttr.get())
 415           aReferenceAttr->setObject(aReplacingResult);
 416       }
 417     }
 418   }
 419
 420   SketchPlugin_SegmentationTools::updateRefAttConstraints(aBaseRefAttributes, aModifiedAttributes);
 421
 422   // Wait all constraints being created, then send update events
 423   static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
 424   bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
 425   if (isUpdateFlushed)
 426     Events_Loop::loop()->setFlushed(anUpdateEvent, false);
 427
 428   // delete constraints
 429 #ifdef DEBUG_TRIM
 430   if (aFeaturesToDelete.size() > 0) {
 431     std::cout << "after SPlit: removeFeaturesAndReferences: " << std::endl;
 432     std::string aValue;
 433     for (std::set<FeaturePtr>::const_iterator anIt = aFeaturesToDelete.begin();
 434          anIt != aFeaturesToDelete.end(); anIt++) {
 435       FeaturePtr aFeature = *anIt;
 436       std::cout << aFeature->data()->name() << std::endl;
 437     }
 438   }
 439 #endif
 440   ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToDelete);
 441   Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_DELETED));
 442
 443   SketchPlugin_SegmentationTools::updateFeaturesAfterOperation(aFeaturesToUpdate);
 444
 445   // Send events to update the sub-features by the solver.
 446   if(isUpdateFlushed) {
 447     Events_Loop::loop()->setFlushed(anUpdateEvent, true);
 448   }
 449
 450   if (anIsEqualPreviewAndSelected) {
 451     // equal preview and selected objects
 452     // nothing to do if the preview and selected objects are different
 453     if (aReplacingResult.get()) { // base object was removed
 454       aPreviewObject = aReplacingResult;
 455       //aMessage->setSelectedObject(aReplacingResult);
 456 #ifdef DEBUG_TRIM_METHODS
 457       if (!aSelectedShape.get())
 458         std::cout << "Set empty selected object" << std::endl;
 459       else
 460         std::cout << "Set shape with ShapeType: " << aSelectedShape->shapeTypeStr() << std::endl;
 461 #endif
 462     }
 463     else {
 464       aPreviewObject = ObjectPtr();
 465
 466       aBaseFeature->execute(); // should recompute shapes of result to do not check obsolete one
 467       aBaseObject = aBaseFeature->lastResult();
 468       std::shared_ptr<GeomAPI_Pnt> aPreviewPnt = sketch()->to3D(aPreviewPnt2d->x(),
 469                                                                 aPreviewPnt2d->y());
 470       ResultPtr aBaseResult = std::dynamic_pointer_cast<ModelAPI_Result>(aBaseObject);
 471       if (aBaseResult) {
 472         GeomShapePtr aShape = aBaseResult->shape();
 473         std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
 474         if (ModelGeomAlgo_Point2D::isPointOnEdge(aShape, aPreviewPnt, aProjectedPoint))
 475           aPreviewObject = aBaseResult;
 476       }
 477       if (!aPreviewObject.get() && aNewFeature.get()) {
 478         ResultPtr aNewFeatureResult = aNewFeature->lastResult();
 479         if (aNewFeatureResult.get()) {
 480           GeomShapePtr aShape = aNewFeatureResult->shape();
 481           std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
 482           if (ModelGeomAlgo_Point2D::isPointOnEdge(aShape, aPreviewPnt, aProjectedPoint))
 483             aPreviewObject = aNewFeatureResult;
 484         }
 485       }
 486     }
 487   }
 488   if (aPreviewObject.get()) {
 489     std::shared_ptr<ModelAPI_EventReentrantMessage> aMessage = std::shared_ptr
 490       <ModelAPI_EventReentrantMessage>(new ModelAPI_EventReentrantMessage(
 491                                            ModelAPI_EventReentrantMessage::eventId(), this));
 492     aMessage->setSelectedObject(aPreviewObject);
 493     Events_Loop::loop()->send(aMessage);
 494   }
 495 #ifdef DEBUG_TRIM
 496   std::cout << "SketchPlugin_Trim::done" << std::endl;
 497 #endif
 498 }
 499
 500 // LCOV_EXCL_START
 501 std::string SketchPlugin_Trim::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 502 {
 503 #ifdef DEBUG_TRIM_METHODS
 504   std::cout << "SketchPlugin_Trim::processEvent:" << data()->name() << std::endl;
 505 #endif
 506   std::string aFilledAttributeName;
 507
 508   std::shared_ptr<ModelAPI_EventReentrantMessage> aMessage =
 509         std::dynamic_pointer_cast<ModelAPI_EventReentrantMessage>(theMessage);
 510   if (aMessage.get()) {
 511     ObjectPtr anObject = aMessage->selectedObject();
 512     std::shared_ptr<GeomAPI_Pnt2d> aPoint = aMessage->clickedPoint();
 513
 514     if (anObject.get() && aPoint.get()) {
 515       if (myCashedShapes.find(anObject) == myCashedShapes.end()) {
 516         SketchPlugin_SegmentationTools::fillObjectShapes(
 517             this, anObject, myCashedShapes, myObjectToPoints);
 518       }
 519       const std::set<GeomShapePtr>& aShapes = myCashedShapes[anObject];
 520       if (aShapes.size() > 1) {
 521         std::shared_ptr<ModelAPI_AttributeReference> aRefSelectedAttr =
 522                               std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 523                               data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 524         std::shared_ptr<ModelAPI_AttributeReference> aRefPreviewAttr =
 525                               std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 526                               data()->attribute(SketchPlugin_Trim::PREVIEW_OBJECT()));
 527         aRefSelectedAttr->setValue(anObject);
 528         aRefPreviewAttr->setValue(anObject);
 529
 530         std::shared_ptr<GeomDataAPI_Point2D> aPointSelectedAttr =
 531                               std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 532                               data()->attribute(SketchPlugin_Trim::SELECTED_POINT()));
 533         std::shared_ptr<GeomDataAPI_Point2D> aPointPreviewAttr =
 534                               std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 535                               data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
 536         aPointSelectedAttr->setValue(aPoint);
 537         aPointPreviewAttr->setValue(aPoint);
 538
 539         Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
 540
 541         GeomShapePtr aSelectedShape = SketchPlugin_SegmentationTools::getSubShape(this,
 542             SELECTED_OBJECT(), SELECTED_POINT(), myCashedShapes, myObjectToPoints);
 543   #ifdef DEBUG_TRIM_METHODS
 544         if (!aSelectedShape.get())
 545           std::cout << "Set empty selected object" << std::endl;
 546         else
 547           std::cout << "Set shape with ShapeType: " << aSelectedShape->shapeTypeStr() << std::endl;
 548   #endif
 549         aFilledAttributeName = SketchPlugin_Trim::SELECTED_OBJECT();
 550       }
 551     }
 552   }
 553   return aFilledAttributeName;
 554 }
 555 // LCOV_EXCL_STOP
 556
 557 bool SketchPlugin_Trim::setCoincidenceToAttribute(const AttributePtr& theAttribute,
 558                                 const std::set<AttributePoint2DPtr>& theFurtherCoincidences,
 559                                 std::set<std::shared_ptr<ModelAPI_Feature>>& theFeaturesToDelete)
 560 {
 561   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
 562   if (aFeature->getKind() != SketchPlugin_ConstraintCoincidence::ID())
 563     return false;
 564
 565   AttributePoint2DPtr aRefPointAttr = SketchPlugin_ConstraintCoincidence::getPoint(aFeature);
 566   if (!aRefPointAttr.get())
 567     return false;
 568   std::shared_ptr<GeomAPI_Pnt2d> aRefPnt2d = aRefPointAttr->pnt();
 569
 570   std::set<AttributePoint2DPtr>::const_iterator anIt = theFurtherCoincidences.begin(),
 571                                                 aLast = theFurtherCoincidences.end();
 572   bool aFoundPoint = false;
 573   for (; anIt != aLast && !aFoundPoint; anIt++) {
 574     AttributePoint2DPtr aPointAttribute = (*anIt);
 575     std::shared_ptr<GeomAPI_Pnt2d> aPoint2d = aPointAttribute->pnt();
 576     if (aPoint2d->isEqual(aRefPnt2d)) {
 577       // create new coincidence and then remove the old one
 578       SketchPlugin_Tools::createConstraintAttrAttr(sketch(),
 579           SketchPlugin_ConstraintCoincidence::ID(),
 580           aRefPointAttr, aPointAttribute);
 581       theFeaturesToDelete.insert(aFeature);
 582     }
 583   }
 584   return aFoundPoint;
 585 }
 586
 587 bool SketchPlugin_Trim::moveTangency(const AttributePtr& theAttribute,
 588                                      const FeaturePtr& theFeature)
 589 {
 590   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
 591   if (aFeature->getKind() != SketchPlugin_ConstraintTangent::ID())
 592     return false;
 593
 594   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 595                                                                            theAttribute);
 596   if (!aRefAttr.get())
 597     return false;
 598
 599   // get shape of tangent object to the current
 600   std::string aTangentAttr = SketchPlugin_Constraint::ENTITY_A();
 601   if (aRefAttr->id() == SketchPlugin_Constraint::ENTITY_A())
 602     aTangentAttr = SketchPlugin_Constraint::ENTITY_B();
 603   AttributeRefAttrPtr aTangentRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 604                                                      aFeature->attribute(aTangentAttr));
 605   FeaturePtr aTangentFeature = ModelAPI_Feature::feature(aTangentRefAttr->object());
 606
 607   // get shape of the feature of the attribute
 608   FeaturePtr anAttributeFeature = ModelAPI_Feature::feature(aRefAttr->object());
 609   anAttributeFeature->execute(); // the modified value should be applyed to recompute shape
 610   GeomAlgoAPI_ShapeTools::PointToRefsMap aPointToAttributeOrObject;
 611   std::list<FeaturePtr> aFeatures;
 612   aFeatures.push_back(anAttributeFeature);
 613   ModelGeomAlgo_Point2D::getPointsIntersectedShape(aTangentFeature, aFeatures,
 614                                                    aPointToAttributeOrObject);
 615   if (!aPointToAttributeOrObject.empty())
 616     return true; // the attribute feature has a point of intersection, so we do not replace it
 617
 618   // get shape of the feature
 619   aPointToAttributeOrObject.clear();
 620   aFeatures.clear();
 621   aFeatures.push_back(theFeature);
 622   ModelGeomAlgo_Point2D::getPointsIntersectedShape(aTangentFeature, aFeatures,
 623                                                    aPointToAttributeOrObject);
 624   if (!aPointToAttributeOrObject.empty()) {
 625     std::set<ResultPtr> anEdgeShapes;
 626     ModelGeomAlgo_Shape::shapesOfType(theFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
 627     if (!anEdgeShapes.empty()) {
 628       ResultPtr aResult = *anEdgeShapes.begin();
 629       if (aResult.get()) {
 630         aRefAttr->setObject(aResult);
 631         return true; // the attribute feature has a point of intersection, so we do not replace it
 632       }
 633     }
 634   }
 635   return false;
 636 }
 637
 638 AISObjectPtr SketchPlugin_Trim::getAISObject(AISObjectPtr thePrevious)
 639 {
 640   return SketchPlugin_SegmentationTools::getAISObject(thePrevious,
 641       this, PREVIEW_OBJECT(), PREVIEW_POINT(), SELECTED_OBJECT(), SELECTED_POINT());
 642 }
 643
 644 void SketchPlugin_Trim::getConstraints(std::set<FeaturePtr>& theFeaturesToDelete,
 645                                        std::set<FeaturePtr>& theFeaturesToUpdate)
 646 {
 647   std::shared_ptr<ModelAPI_Data> aData = data();
 648
 649   // Check the base objects are initialized.
 650   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 651                                          aData->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 652   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 653   ResultPtr aBaseFeatureResult = aBaseFeature->lastResult();
 654
 655   std::set<AttributePtr> aRefsList = aBaseFeatureResult->data()->refsToMe();
 656   std::set<AttributePtr> aFRefsList = aBaseFeature->data()->refsToMe();
 657   aRefsList.insert(aFRefsList.begin(), aFRefsList.end());
 658
 659   std::set<AttributePtr>::const_iterator aIt;
 660   for (aIt = aRefsList.cbegin(); aIt != aRefsList.cend(); ++aIt) {
 661     std::shared_ptr<ModelAPI_Attribute> anAttr = (*aIt);
 662     FeaturePtr aRefFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 663     std::string aRefFeatureKind = aRefFeature->getKind();
 664     std::string anAttributeId = anAttr->id();
 665     if ((aRefFeatureKind == SketchPlugin_ConstraintMirror::ID() &&
 666          anAttributeId == SketchPlugin_ConstraintMirror::MIRROR_LIST_ID()) ||
 667         (aRefFeatureKind == SketchPlugin_MultiRotation::ID() &&
 668          anAttributeId == SketchPlugin_MultiRotation::ROTATION_LIST_ID()) ||
 669         (aRefFeatureKind == SketchPlugin_MultiTranslation::ID() &&
 670          anAttributeId == SketchPlugin_MultiTranslation::TRANSLATION_LIST_ID()) ||
 671         aRefFeatureKind == SketchPlugin_ConstraintMiddle::ID())
 672       theFeaturesToDelete.insert(aRefFeature);
 673     else if (aRefFeatureKind == SketchPlugin_ConstraintLength::ID())
 674       theFeaturesToUpdate.insert(aRefFeature);
 675   }
 676 }
 677
 678 void SketchPlugin_Trim::removeReferencesToAttribute(const AttributePtr& theAttribute,
 679                   std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes)
 680 {
 681   /// not found in references
 682   if (theBaseRefAttributes.find(theAttribute) == theBaseRefAttributes.end())
 683     return;
 684
 685   std::list<AttributePtr> aRefAttributes = theBaseRefAttributes.at(theAttribute);
 686   std::list<AttributePtr>::const_iterator aRefIt = aRefAttributes.begin(),
 687                                           aRLast = aRefAttributes.end();
 688
 689   std::set<FeaturePtr> aFeaturesToDelete;
 690   for (; aRefIt != aRLast; aRefIt++) {
 691     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*aRefIt);
 692     if (aRefAttr.get()) {
 693       aFeaturesToDelete.insert(ModelAPI_Feature::feature(aRefAttr->owner()));
 694     }
 695   }
 696
 697 #ifdef DEBUG_TRIM
 698   // delete constraints
 699   if (aFeaturesToDelete.size() > 0) {
 700     std::cout << "removeReferencesToAttribute: " << std::endl;
 701     std::string aValue;
 702     for (std::set<FeaturePtr>::const_iterator anIt = aFeaturesToDelete.begin();
 703          anIt != aFeaturesToDelete.end(); anIt++) {
 704       FeaturePtr aFeature = *anIt;
 705       std::cout << aFeature->data()->name() << std::endl;
 706     }
 707   }
 708 #endif
 709   ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToDelete);
 710   Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_DELETED));
 711 }
 712
 713 FeaturePtr SketchPlugin_Trim::trimLine(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 714                   const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 715                   std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes,
 716                   std::set<AttributePoint2DPtr>& thePoints,
 717                   std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 718 {
 719   FeaturePtr anNewFeature;
 720
 721   // Check the base objects are initialized.
 722   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 723                                         data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 724   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 725   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 726
 727   /// points of trim
 728   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 729   SketchPlugin_SegmentationTools::getFeaturePoints(
 730       aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 731
 732   std::shared_ptr<GeomAPI_Pnt2d> aStartFeaturePoint = aStartPointAttrOfBase->pnt();
 733   std::shared_ptr<GeomAPI_Pnt2d> aLastFeaturePoint = anEndPointAttrOfBase->pnt();
 734
 735   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint = theStartShapePoint;
 736   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint = theLastShapePoint;
 737   arrangePointsOnLine(aStartPointAttrOfBase, anEndPointAttrOfBase,
 738                       aStartShapePoint, aLastShapePoint);
 739 #ifdef DEBUG_TRIM
 740   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
 741   if (aStartShapePoint.get())
 742     std::cout << "Start point: [" << aStartShapePoint->x() << ", " <<
 743                                        aStartShapePoint->y() << "]" << std::endl;
 744   std::cout << "1st point:   [" << aStartFeaturePoint->x() << ", " <<
 745                                    aStartFeaturePoint->y() << "]" << std::endl;
 746   if (aLastShapePoint.get())
 747     std::cout << "2st point:   [" << aLastShapePoint->x() << ", " <<
 748                                      aLastShapePoint->y() << "]" << std::endl;
 749   std::cout << "End point:   [" << aLastFeaturePoint->x() << ", " <<
 750                                    aLastFeaturePoint->y() << "]" << std::endl;
 751 #endif
 752
 753   bool isStartPoint = !aStartShapePoint.get() || aStartFeaturePoint->isEqual(aStartShapePoint);
 754   bool isLastPoint = !aLastShapePoint.get() || aLastFeaturePoint->isEqual(aLastShapePoint);
 755   if (isStartPoint || isLastPoint) {
 756     // result is one line: changed existing line
 757     std::string aModifiedAttribute = isStartPoint ? SketchPlugin_Line::START_ID()
 758                                                   : SketchPlugin_Line::END_ID();
 759     std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 760     if (aStartShapePoint.get() && aLastShapePoint.get())
 761       aPoint = isStartPoint ? aLastShapePoint : aStartShapePoint;
 762     else
 763       aPoint = aStartShapePoint.get() ? aStartShapePoint : aLastShapePoint;
 764
 765     // it is important to delete references before the feature modification because
 766     // if deletion will be after the feature modification, solver returns the feature back
 767     removeReferencesToAttribute(aBaseFeature->attribute(aModifiedAttribute),
 768                                 theBaseRefAttributes);
 769
 770     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aPoint);
 771     //theModifiedAttributes.insert(
 772     //  std::make_pair(aBaseFeature->attribute(aModifiedAttribute), AttributePtr()));
 773
 774     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 775                                (aBaseFeature->attribute(aModifiedAttribute)));
 776   }
 777   else {
 778     // result is two lines: start line point - start shape point,
 779     // last shape point - last line point
 780     // create second line
 781     anNewFeature = SketchPlugin_SegmentationTools::createLineFeature(
 782         aBaseFeature, aLastShapePoint, aLastFeaturePoint);
 783     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 784                                (anNewFeature->attribute(SketchPlugin_Line::START_ID())));
 785
 786     std::string aModifiedAttribute = SketchPlugin_Line::END_ID();
 787     theModifiedAttributes.insert(
 788       std::make_pair(aBaseFeature->attribute(aModifiedAttribute),
 789                                    anNewFeature->attribute(SketchPlugin_Line::END_ID())));
 790
 791     // modify base arc
 792     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aStartShapePoint);
 793
 794     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 795                                (aBaseFeature->attribute(aModifiedAttribute)));
 796
 797     // Collinear constraint for lines
 798     SketchPlugin_Tools::createConstraintObjectObject(sketch(),
 799                                          SketchPlugin_ConstraintCollinear::ID(),
 800                                          aBaseFeature->lastResult(),
 801                                          anNewFeature->lastResult());
 802   }
 803   return anNewFeature;
 804 }
 805
 806 FeaturePtr SketchPlugin_Trim::trimArc(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 807                  const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 808                  std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes,
 809                  std::set<AttributePoint2DPtr>& thePoints,
 810                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 811 {
 812   FeaturePtr anNewFeature;
 813   // Check the base objects are initialized.
 814   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 815                                         data()->attribute(SketchPlugin_Trim::SELECTED_OBJECT()));
 816   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 817   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 818
 819   /// points of trim
 820   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 821   SketchPlugin_SegmentationTools::getFeaturePoints(
 822       aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 823
 824   std::shared_ptr<GeomAPI_Pnt2d> aStartArcPoint = aStartPointAttrOfBase->pnt();
 825   std::shared_ptr<GeomAPI_Pnt2d> aLastArcPoint = anEndPointAttrOfBase->pnt();
 826
 827   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint = theStartShapePoint;
 828   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint = theLastShapePoint;
 829   arrangePointsOnArc(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase,
 830                      aStartShapePoint, aLastShapePoint);
 831 #ifdef DEBUG_TRIM
 832   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
 833   if (aStartShapePoint.get())
 834     std::cout << "Start shape point: [" << aStartShapePoint->x() << ", " <<
 835                                        aStartShapePoint->y() << "]" << std::endl;
 836   std::cout << "Start arc attribute point:   [" << aStartArcPoint->x() << ", " <<
 837                                    aStartArcPoint->y() << "]" << std::endl;
 838   if (aLastShapePoint.get())
 839     std::cout << "Last shape point:   [" << aLastShapePoint->x() << ", " <<
 840                                      aLastShapePoint->y() << "]" << std::endl;
 841   std::cout << "Last arc attribute point:   [" << aLastArcPoint->x() << ", " <<
 842                                    aLastArcPoint->y() << "]" << std::endl;
 843 #endif
 844
 845   bool isStartPoint = !aStartShapePoint.get() || aStartArcPoint->isEqual(aStartShapePoint);
 846   bool isLastPoint = !aLastShapePoint.get() || aLastArcPoint->isEqual(aLastShapePoint);
 847   if (isStartPoint || isLastPoint) {
 848     // result is one arc: changed existing arc
 849     std::string aModifiedAttribute = isStartPoint ? SketchPlugin_Arc::START_ID()
 850                                                   : SketchPlugin_Arc::END_ID();
 851     std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 852     if (aStartShapePoint.get() && aLastShapePoint.get())
 853       aPoint = isStartPoint ? aLastShapePoint : aStartShapePoint;
 854     else
 855       aPoint = aStartShapePoint.get() ? aStartShapePoint : aLastShapePoint;
 856
 857     removeReferencesToAttribute(aBaseFeature->attribute(aModifiedAttribute),
 858                                 theBaseRefAttributes);
 859
 860     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aPoint);
 861
 862     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 863                                (aBaseFeature->attribute(aModifiedAttribute)));
 864   }
 865   else {
 866     // result is two arcs: start arc point - start shape point, last shape point - last arc point
 867     // create second arc
 868     anNewFeature = SketchPlugin_SegmentationTools::createArcFeature(
 869         aBaseFeature, aLastShapePoint, aLastArcPoint);
 870     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 871                                (anNewFeature->attribute(SketchPlugin_Arc::START_ID())));
 872
 873     std::string aModifiedAttribute = SketchPlugin_Arc::END_ID();
 874     theModifiedAttributes.insert(
 875       std::make_pair(aBaseFeature->attribute(aModifiedAttribute),
 876                                    anNewFeature->attribute(SketchPlugin_Arc::END_ID())));
 877
 878     // modify base arc
 879     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aStartShapePoint);
 880
 881     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 882                                (aBaseFeature->attribute(aModifiedAttribute)));
 883
 884     // equal Radius constraint for arcs
 885     SketchPlugin_Tools::createConstraintObjectObject(sketch(),
 886                                          SketchPlugin_ConstraintEqual::ID(),
 887                                          aBaseFeature->lastResult(),
 888                                          anNewFeature->lastResult());
 889     // coincident centers constraint
 890     SketchPlugin_Tools::createConstraintAttrAttr(sketch(),
 891                                          SketchPlugin_ConstraintCoincidence::ID(),
 892                                          aBaseFeature->attribute(SketchPlugin_Arc::CENTER_ID()),
 893                                          anNewFeature->attribute(SketchPlugin_Arc::CENTER_ID()));
 894
 895 #ifdef DEBUG_TRIM
 896     std::cout << "Created arc on points:" << std::endl;
 897     std::cout << "Start shape point: [" << aStartShapePoint->x() << ", " <<
 898                                            aStartShapePoint->y() << "]" << std::endl;
 899 #endif
 900   }
 901   return anNewFeature;
 902 }
 903
 904 FeaturePtr SketchPlugin_Trim::trimEllipticArc(
 905                  const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
 906                  const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
 907                  std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes,
 908                  std::set<AttributePoint2DPtr>& thePoints,
 909                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 910 {
 911   FeaturePtr anNewFeature;
 912   // Check the base objects are initialized.
 913   AttributeReferencePtr aBaseObjectAttr = reference(SELECTED_OBJECT());
 914   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 915   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 916
 917   // points of trim
 918   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 919   SketchPlugin_SegmentationTools::getFeaturePoints(
 920       aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase);
 921
 922   std::shared_ptr<GeomAPI_Pnt2d> aStartArcPoint = aStartPointAttrOfBase->pnt();
 923   std::shared_ptr<GeomAPI_Pnt2d> aLastArcPoint = anEndPointAttrOfBase->pnt();
 924
 925   std::shared_ptr<GeomAPI_Pnt2d> aStartShapePoint = theStartShapePoint;
 926   std::shared_ptr<GeomAPI_Pnt2d> aLastShapePoint = theLastShapePoint;
 927   arrangePointsOnArc(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase,
 928                      aStartShapePoint, aLastShapePoint);
 929 #ifdef DEBUG_TRIM
 930   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
 931   if (aStartShapePoint.get())
 932     std::cout << "Start shape point: [" << aStartShapePoint->x() << ", " <<
 933                                        aStartShapePoint->y() << "]" << std::endl;
 934   std::cout << "Start arc attribute point:   [" << aStartArcPoint->x() << ", " <<
 935                                    aStartArcPoint->y() << "]" << std::endl;
 936   if (aLastShapePoint.get())
 937     std::cout << "Last shape point:   [" << aLastShapePoint->x() << ", " <<
 938                                      aLastShapePoint->y() << "]" << std::endl;
 939   std::cout << "Last arc attribute point:   [" << aLastArcPoint->x() << ", " <<
 940                                    aLastArcPoint->y() << "]" << std::endl;
 941 #endif
 942
 943   bool isStartPoint = !aStartShapePoint.get() || aStartArcPoint->isEqual(aStartShapePoint);
 944   bool isLastPoint = !aLastShapePoint.get() || aLastArcPoint->isEqual(aLastShapePoint);
 945   if (isStartPoint || isLastPoint) {
 946     // result is one arc: changed existing arc
 947     std::string aModifiedAttribute = isStartPoint ? SketchPlugin_EllipticArc::START_POINT_ID()
 948                                                   : SketchPlugin_EllipticArc::END_POINT_ID();
 949     std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 950     if (aStartShapePoint.get() && aLastShapePoint.get())
 951       aPoint = isStartPoint ? aLastShapePoint : aStartShapePoint;
 952     else
 953       aPoint = aStartShapePoint.get() ? aStartShapePoint : aLastShapePoint;
 954
 955     removeReferencesToAttribute(aBaseFeature->attribute(aModifiedAttribute),
 956                                 theBaseRefAttributes);
 957
 958     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aPoint);
 959
 960     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 961                                (aBaseFeature->attribute(aModifiedAttribute)));
 962   }
 963   else {
 964     // result is two arcs: start arc point - start shape point, last shape point - last arc point
 965     // create second arc
 966     anNewFeature = SketchPlugin_SegmentationTools::createArcFeature(
 967         aBaseFeature, aLastShapePoint, aLastArcPoint);
 968     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 969                      anNewFeature->attribute(SketchPlugin_EllipticArc::START_POINT_ID())));
 970
 971     std::string aModifiedAttribute = SketchPlugin_EllipticArc::END_POINT_ID();
 972     theModifiedAttributes.insert(
 973       std::make_pair(aBaseFeature->attribute(aModifiedAttribute),
 974                      anNewFeature->attribute(SketchPlugin_EllipticArc::END_POINT_ID())));
 975
 976     // modify base arc
 977     fillPointAttribute(aBaseFeature->attribute(aModifiedAttribute), aStartShapePoint);
 978
 979     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 980                                (aBaseFeature->attribute(aModifiedAttribute)));
 981
 982     // make elliptic arcs equal
 983     SketchPlugin_Tools::createConstraintObjectObject(sketch(),
 984                                          SketchPlugin_ConstraintEqual::ID(),
 985                                          aBaseFeature->lastResult(),
 986                                          anNewFeature->lastResult());
 987     // coincident centers constraint
 988     SketchPlugin_Tools::createConstraintAttrAttr(sketch(),
 989         SketchPlugin_ConstraintCoincidence::ID(),
 990         aBaseFeature->attribute(SketchPlugin_EllipticArc::CENTER_ID()),
 991         anNewFeature->attribute(SketchPlugin_EllipticArc::CENTER_ID()));
 992
 993 #ifdef DEBUG_TRIM
 994     std::cout << "Created arc on points:" << std::endl;
 995     std::cout << "Start shape point: [" << aStartShapePoint->x() << ", " <<
 996                                            aStartShapePoint->y() << "]" << std::endl;
 997 #endif
 998   }
 999   return anNewFeature;
1000 }
1001
1002 FeaturePtr SketchPlugin_Trim::trimClosed(const std::shared_ptr<GeomAPI_Pnt2d>& theStartShapePoint,
1003                                          const std::shared_ptr<GeomAPI_Pnt2d>& theLastShapePoint,
1004                                          std::set<AttributePoint2DPtr>& thePoints,
1005                            std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
1006 {
1007   // Check the base objects are initialized.
1008   AttributeReferencePtr aBaseObjectAttr = reference(SELECTED_OBJECT());
1009   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1010   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
1011
1012   // trim feature
1013   FeaturePtr anNewFeature = SketchPlugin_SegmentationTools::createArcFeature(
1014       aBaseFeature, theStartShapePoint, theLastShapePoint);
1015   // arc created by trim of circle is always correct, that means that it is not inversed
1016   const std::string& aReversedAttrName = anNewFeature->getKind() == SketchPlugin_Arc::ID() ?
1017       SketchPlugin_Arc::REVERSED_ID() : SketchPlugin_EllipticArc::REVERSED_ID();
1018   anNewFeature->boolean(aReversedAttrName)->setValue(false);
1019
1020   if (aBaseFeature->getKind() == SketchPlugin_Circle::ID()) {
1021     theModifiedAttributes.insert(
1022       std::make_pair(aBaseFeature->attribute(SketchPlugin_Circle::CENTER_ID()),
1023                      anNewFeature->attribute(SketchPlugin_Arc::CENTER_ID())));
1024   }
1025   else if (aBaseFeature->getKind() == SketchPlugin_Ellipse::ID()) {
1026     theModifiedAttributes.insert(std::make_pair(
1027         aBaseFeature->attribute(SketchPlugin_Ellipse::CENTER_ID()),
1028         anNewFeature->attribute(SketchPlugin_EllipticArc::CENTER_ID())));
1029     theModifiedAttributes.insert(std::make_pair(
1030         aBaseFeature->attribute(SketchPlugin_Ellipse::FIRST_FOCUS_ID()),
1031         anNewFeature->attribute(SketchPlugin_EllipticArc::FIRST_FOCUS_ID())));
1032     theModifiedAttributes.insert(std::make_pair(
1033         aBaseFeature->attribute(SketchPlugin_Ellipse::SECOND_FOCUS_ID()),
1034         anNewFeature->attribute(SketchPlugin_EllipticArc::SECOND_FOCUS_ID())));
1035     theModifiedAttributes.insert(std::make_pair(
1036         aBaseFeature->attribute(SketchPlugin_Ellipse::MAJOR_AXIS_START_ID()),
1037         anNewFeature->attribute(SketchPlugin_EllipticArc::MAJOR_AXIS_START_ID())));
1038     theModifiedAttributes.insert(std::make_pair(
1039         aBaseFeature->attribute(SketchPlugin_Ellipse::MAJOR_AXIS_END_ID()),
1040         anNewFeature->attribute(SketchPlugin_EllipticArc::MAJOR_AXIS_END_ID())));
1041     theModifiedAttributes.insert(std::make_pair(
1042         aBaseFeature->attribute(SketchPlugin_Ellipse::MINOR_AXIS_START_ID()),
1043         anNewFeature->attribute(SketchPlugin_EllipticArc::MINOR_AXIS_START_ID())));
1044     theModifiedAttributes.insert(std::make_pair(
1045         aBaseFeature->attribute(SketchPlugin_Ellipse::MINOR_AXIS_END_ID()),
1046         anNewFeature->attribute(SketchPlugin_EllipticArc::MINOR_AXIS_END_ID())));
1047
1048     // update the PARENT_ID reference for all the features created by the ellipse
1049     const std::set<AttributePtr>& aRefs = aBaseFeature->data()->refsToMe();
1050     std::list<AttributePtr> aRefsToParent;
1051     for (std::set<AttributePtr>::const_iterator aRef = aRefs.begin(); aRef != aRefs.end(); ++aRef) {
1052       if ((*aRef)->id() == SketchPlugin_Line::PARENT_ID() ||
1053           (*aRef)->id() == SketchPlugin_Point::PARENT_ID())
1054         aRefsToParent.push_back(*aRef);
1055     }
1056     for (std::list<AttributePtr>::iterator aRef = aRefsToParent.begin();
1057          aRef != aRefsToParent.end(); ++aRef)
1058       std::dynamic_pointer_cast<ModelAPI_AttributeReference>(*aRef)->setValue(anNewFeature);
1059   }
1060
1061   const std::string& aStartAttrName = anNewFeature->getKind() == SketchPlugin_Arc::ID() ?
1062       SketchPlugin_Arc::START_ID() : SketchPlugin_EllipticArc::START_POINT_ID();
1063   const std::string& aEndAttrName = anNewFeature->getKind() == SketchPlugin_Arc::ID() ?
1064       SketchPlugin_Arc::END_ID() : SketchPlugin_EllipticArc::END_POINT_ID();
1065
1066   thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
1067                              (anNewFeature->attribute(aStartAttrName)));
1068   thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
1069                              (anNewFeature->attribute(aEndAttrName)));
1070
1071   return anNewFeature;
1072 }
1073
1074 void SketchPlugin_Trim::arrangePointsOnLine(const AttributePoint2DPtr& theStartPointAttr,
1075                                             const AttributePoint2DPtr& theEndPointAttr,
1076                                             std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
1077                                             std::shared_ptr<GeomAPI_Pnt2d>& theLastPoint) const
1078 {
1079   if (!theFirstPoint.get() || !theLastPoint.get())
1080     return;
1081
1082   // if first point is closer to last point, swap first and last values
1083   if (theStartPointAttr->pnt()->distance(theFirstPoint) >
1084       theStartPointAttr->pnt()->distance(theLastPoint)) {
1085     std::shared_ptr<GeomAPI_Pnt2d> aTmpPoint = theFirstPoint;
1086     theFirstPoint = theLastPoint;
1087     theLastPoint = aTmpPoint;
1088   }
1089 }
1090
1091 void SketchPlugin_Trim::arrangePointsOnArc(const FeaturePtr& theArc,
1092                                   const AttributePoint2DPtr& theStartPointAttr,
1093                                   const AttributePoint2DPtr& theEndPointAttr,
1094                                   std::shared_ptr<GeomAPI_Pnt2d>& theFirstPoint,
1095                                   std::shared_ptr<GeomAPI_Pnt2d>& theSecondPoint) const
1096 {
1097   if (!theFirstPoint.get() || !theSecondPoint.get())
1098     return;
1099
1100   static const double anAngleTol = 1.e-12;
1101
1102   const std::string& aCenterAttrName = theArc->getKind() == SketchPlugin_Arc::ID() ?
1103       SketchPlugin_Arc::CENTER_ID() : SketchPlugin_EllipticArc::CENTER_ID();
1104   const std::string& aReversedAttrName = theArc->getKind() == SketchPlugin_Arc::ID() ?
1105       SketchPlugin_Arc::REVERSED_ID() : SketchPlugin_EllipticArc::REVERSED_ID();
1106
1107   std::shared_ptr<GeomAPI_Pnt2d> aCenter = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1108       theArc->attribute(aCenterAttrName))->pnt();
1109   bool isReversed = theArc->boolean(aReversedAttrName)->value();
1110
1111   // collect directions to each point
1112   std::shared_ptr<GeomAPI_Dir2d> aStartDir(
1113       new GeomAPI_Dir2d(theStartPointAttr->pnt()->xy()->decreased(aCenter->xy())));
1114   std::shared_ptr<GeomAPI_Dir2d> aFirstPtDir(
1115       new GeomAPI_Dir2d(theFirstPoint->xy()->decreased(aCenter->xy())));
1116   std::shared_ptr<GeomAPI_Dir2d> aSecondPtDir(
1117       new GeomAPI_Dir2d(theSecondPoint->xy()->decreased(aCenter->xy())));
1118
1119   // sort points by their angular values
1120   double aFirstPtAngle = aStartDir->angle(aFirstPtDir);
1121   double aSecondPtAngle = aStartDir->angle(aSecondPtDir);
1122   double aPeriod = isReversed ? -2.0 * PI : 2.0 * PI;
1123   if (fabs(aFirstPtAngle) > anAngleTol && isReversed == (aFirstPtAngle > 0.))
1124     aFirstPtAngle += aPeriod;
1125   if (fabs(aSecondPtAngle) > anAngleTol && isReversed == (aSecondPtAngle > 0.))
1126     aSecondPtAngle += aPeriod;
1127
1128   if (fabs(aFirstPtAngle) > fabs(aSecondPtAngle)) {
1129     std::shared_ptr<GeomAPI_Pnt2d> aTmpPoint = theFirstPoint;
1130     theFirstPoint = theSecondPoint;
1131     theSecondPoint = aTmpPoint;
1132   }
1133 }
1134
1135 void SketchPlugin_Trim::fillPointAttribute(const AttributePtr& theModifiedAttribute,
1136                                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
1137 {
1138   std::string anAttributeType = theModifiedAttribute->attributeType();
1139   if (anAttributeType == GeomDataAPI_Point2D::typeId()) {
1140     AttributePoint2DPtr aModifiedAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1141                                               theModifiedAttribute);
1142     aModifiedAttribute->setValue(thePoint);
1143
1144 #ifdef DEBUG_TRIM
1145     FeaturePtr aFeature = ModelAPI_Feature::feature(theModifiedAttribute->owner());
1146     std::cout << "<fillPointAttribute[" << aFeature->data()->name() << ": " <<
1147       theModifiedAttribute->id() <<
1148       "]> => Pnt2d - [" << thePoint->x() << ", " << thePoint->y() << "]" << std::endl;
1149 #endif
1150   }
1151 }
1152
1153 void SketchPlugin_Trim::fillAttribute(const AttributePtr& theModifiedAttribute,
1154                                       const AttributePtr& theSourceAttribute)
1155 {
1156   std::string anAttributeType = theModifiedAttribute->attributeType();
1157   if (anAttributeType == GeomDataAPI_Point2D::typeId()) {
1158     AttributePoint2DPtr aModifiedAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1159                                               theModifiedAttribute);
1160     AttributePoint2DPtr aSourceAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1161                                               theSourceAttribute);
1162
1163     if (aModifiedAttribute.get() && aSourceAttribute.get())
1164       aModifiedAttribute->setValue(aSourceAttribute->pnt());
1165   }
1166   else if (anAttributeType == ModelAPI_AttributeBoolean::typeId()) {
1167     AttributeBooleanPtr aModifiedAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
1168                                               theModifiedAttribute);
1169     AttributeBooleanPtr aSourceAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
1170                                               theSourceAttribute);
1171
1172     if (aModifiedAttribute.get() && aSourceAttribute.get())
1173       aModifiedAttribute->setValue(aSourceAttribute->value());
1174   }
1175 }