src/SketchPlugin/SketchPlugin_Projection.cpp

   1 // Copyright (C) 2014-2023  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_Projection.h>
  21
  22 #include <SketchPlugin_Arc.h>
  23 #include <SketchPlugin_BSpline.h>
  24 #include <SketchPlugin_BSplinePeriodic.h>
  25 #include <SketchPlugin_Circle.h>
  26 #include <SketchPlugin_Ellipse.h>
  27 #include <SketchPlugin_EllipticArc.h>
  28 #include <SketchPlugin_Line.h>
  29 #include <SketchPlugin_Point.h>
  30 #include <SketchPlugin_Sketch.h>
  31 #include <SketchPlugin_ConstraintRigid.h>
  32
  33 #include <ModelAPI_AttributeRefAttr.h>
  34 #include <ModelAPI_AttributeSelection.h>
  35 #include <ModelAPI_AttributeDouble.h>
  36 #include <ModelAPI_AttributeDoubleArray.h>
  37 #include <ModelAPI_AttributeInteger.h>
  38 #include <ModelAPI_AttributeString.h>
  39 #include <ModelAPI_ResultConstruction.h>
  40 #include <ModelAPI_Session.h>
  41 #include <ModelAPI_Validator.h>
  42 #include <ModelAPI_Tools.h>
  43 #include <ModelAPI_Events.h>
  44
  45 #include <Events_Loop.h>
  46
  47 #include <GeomAPI_BSpline.h>
  48 #include <GeomAPI_Circ.h>
  49 #include <GeomAPI_Edge.h>
  50 #include <GeomAPI_Ellipse.h>
  51 #include <GeomAPI_Lin.h>
  52 #include <GeomAPI_Pnt.h>
  53 #include <GeomAPI_Pnt2d.h>
  54 #include <GeomAPI_Vertex.h>
  55 #include <GeomAlgoAPI_EdgeBuilder.h>
  56 #include <GeomAlgoAPI_Projection.h>
  57 #include <GeomDataAPI_Point2D.h>
  58 #include <GeomDataAPI_Point2DArray.h>
  59
  60 #include <cmath>
  61
  62 static const double tolerance = 1.e-7;
  63 static const std::string THE_KEEP_REF("true");
  64
  65 static bool isKeepReference(AttributeStringPtr theAttr)
  66 {
  67   return !theAttr || !theAttr->isInitialized() || theAttr->value() == THE_KEEP_REF;
  68 }
  69
  70
  71 SketchPlugin_Projection::SketchPlugin_Projection()
  72     : SketchPlugin_SketchEntity(),
  73       myIsComputing(false)
  74 {
  75 }
  76
  77 void SketchPlugin_Projection::initDerivedClassAttributes()
  78 {
  79   data()->addAttribute(EXTERNAL_FEATURE_ID(), ModelAPI_AttributeSelection::typeId());
  80   data()->addAttribute(PROJECTED_FEATURE_ID(), ModelAPI_AttributeRefAttr::typeId());
  81   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), PROJECTED_FEATURE_ID());
  82   data()->attribute(PROJECTED_FEATURE_ID())->setIsArgument(false);
  83
  84   data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
  85   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
  86
  87   data()->addAttribute(INCLUDE_INTO_RESULT(), ModelAPI_AttributeBoolean::typeId());
  88
  89   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), AUXILIARY_ID());
  90 }
  91
  92 void SketchPlugin_Projection::initDerivedClassAttributes2()
  93 {
  94   AttributePtr aKeepRefAttr =
  95       data()->addAttribute(KEEP_REFERENCE_ID(), ModelAPI_AttributeString::typeId());
  96   if (!aKeepRefAttr->isInitialized()) {
  97     std::dynamic_pointer_cast<ModelAPI_AttributeString>(aKeepRefAttr)->setValue(THE_KEEP_REF);
  98   }
  99
 100   data()->addAttribute(MAKE_FIXED(), ModelAPI_AttributeBoolean::typeId());
 101   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), MAKE_FIXED());
 102
 103   data()->addAttribute(FIXED_CONSTRAINT_ID(), ModelAPI_AttributeReference::typeId());
 104   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), FIXED_CONSTRAINT_ID());
 105   data()->attribute(FIXED_CONSTRAINT_ID())->setIsArgument(false);
 106 }
 107
 108 void SketchPlugin_Projection::execute()
 109 {
 110   AttributeRefAttrPtr aRefAttr = data()->refattr(PROJECTED_FEATURE_ID());
 111   if (!aRefAttr || !aRefAttr->isInitialized())
 112     return;
 113   FeaturePtr aProjection = ModelAPI_Feature::feature(aRefAttr->object());
 114
 115   if (isKeepReference(string(KEEP_REFERENCE_ID())) && !lastResult().get()) {
 116     bool hasProjResult = aProjection->lastResult().get() != NULL;
 117     ResultConstructionPtr aConstr = document()->createConstruction(data());
 118     if (hasProjResult)
 119       aConstr->setShape(aProjection->lastResult()->shape());
 120     aConstr->setIsInHistory(false);
 121     aConstr->setDisplayed(false);
 122     setResult(aConstr);
 123
 124     if (hasProjResult)
 125       aProjection->selection(EXTERNAL_ID())->setValue(lastResult(), lastResult()->shape());
 126   }
 127
 128   // is sketch plane is changed (issue 1791), attribute of projection is not changed, but
 129   // projection must be fully recomputed
 130   computeProjection(EXTERNAL_FEATURE_ID());
 131 }
 132
 133 bool SketchPlugin_Projection::isMacro() const
 134 {
 135   if (!data() || !data()->isValid())
 136     return false;
 137
 138   AttributeStringPtr aKeepRefAttr =
 139       const_cast<SketchPlugin_Projection*>(this)->string(KEEP_REFERENCE_ID());
 140   return !isKeepReference(aKeepRefAttr);
 141 }
 142
 143 void SketchPlugin_Projection::attributeChanged(const std::string& theID)
 144 {
 145   if ((theID == EXTERNAL_FEATURE_ID() || theID == EXTERNAL_ID()) && !myIsComputing) {
 146     myIsComputing = true;
 147     computeProjection(theID);
 148     myIsComputing = false;
 149   }
 150 }
 151
 152 static const std::set<std::string>& POINT_PROJECTION()
 153 {
 154   static std::set<std::string> aProj;
 155   if (aProj.empty())
 156     aProj.insert(SketchPlugin_Point::ID());
 157   return aProj;
 158 }
 159
 160 static const std::set<std::string>& LINE_PROJECTION()
 161 {
 162   static std::set<std::string> aProj;
 163   if (aProj.empty())
 164     aProj.insert(SketchPlugin_Line::ID());
 165   return aProj;
 166 }
 167
 168 static const std::set<std::string>& CIRCLE_ELLIPSE_PROJECTION()
 169 {
 170   static std::set<std::string> aProj;
 171   if (aProj.empty()) {
 172     aProj.insert(SketchPlugin_Circle::ID());
 173     aProj.insert(SketchPlugin_Ellipse::ID());
 174   }
 175   return aProj;
 176 }
 177
 178 static const std::set<std::string>& ARC_PROJECTION()
 179 {
 180   static std::set<std::string> aProj;
 181   if (aProj.empty()) {
 182     aProj.insert(SketchPlugin_Arc::ID());
 183     aProj.insert(SketchPlugin_EllipticArc::ID());
 184   }
 185   return aProj;
 186 }
 187
 188 static const std::set<std::string>& BSPLINE_PROJECTION()
 189 {
 190   static std::set<std::string> aProj;
 191   if (aProj.empty()) {
 192     aProj.insert(SketchPlugin_BSpline::ID());
 193     aProj.insert(SketchPlugin_BSplinePeriodic::ID());
 194   }
 195   return aProj;
 196 }
 197
 198
 199 static const std::set<std::string>& possibleProjectionTypes(GeomEdgePtr theEdge,
 200                                                             GeomVertexPtr theVertex)
 201 {
 202   if (theVertex)
 203     return POINT_PROJECTION();
 204   if (theEdge) {
 205     if (theEdge->isLine())
 206       return LINE_PROJECTION();
 207     else if (theEdge->isCircle() || theEdge->isArc() || theEdge->isEllipse()) {
 208       if (theEdge->isClosed())
 209         return CIRCLE_ELLIPSE_PROJECTION();
 210       else
 211         return ARC_PROJECTION();
 212     }
 213     else
 214       return BSPLINE_PROJECTION();
 215   }
 216   static const std::set<std::string> DUMMY;
 217   return DUMMY;
 218 }
 219
 220 void SketchPlugin_Projection::computeProjection(const std::string& theID)
 221 {
 222   AttributeSelectionPtr aExtFeature =
 223       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(attribute(EXTERNAL_FEATURE_ID()));
 224
 225   GeomShapePtr aShape;
 226   GeomEdgePtr anEdge;
 227   GeomVertexPtr aVertex;
 228   if (aExtFeature)
 229     aShape = aExtFeature->value();
 230   if (!aShape && aExtFeature->context())
 231     aShape = aExtFeature->context()->shape();
 232   if (aShape) {
 233     if (aShape->isEdge())
 234       anEdge = GeomEdgePtr(new GeomAPI_Edge(aShape));
 235     else if (aShape->isVertex())
 236       aVertex = GeomVertexPtr(new GeomAPI_Vertex(aShape));
 237   }
 238   if (!anEdge && !aVertex)
 239     return;
 240
 241   const std::set<std::string>& aProjType = possibleProjectionTypes(anEdge, aVertex);
 242
 243   AttributeRefAttrPtr aRefAttr = data()->refattr(PROJECTED_FEATURE_ID());
 244   FeaturePtr aProjection;
 245   if (aRefAttr && aRefAttr->isInitialized())
 246     aProjection = ModelAPI_Feature::feature(aRefAttr->object());
 247
 248   // if the type of feature differs with already selected, remove it and create once again
 249   bool isRebuild = rebuildProjectedFeature(aProjection, aProjType);
 250
 251   ResultConstructionPtr aResult =
 252       std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(lastResult());
 253   if (!isRebuild && aResult && aResult->shape() && theID == EXTERNAL_FEATURE_ID()) {
 254     aResult->setShape(std::shared_ptr<GeomAPI_Edge>());
 255     if (aProjection)
 256       aProjection->selection(EXTERNAL_ID())->setValue(ResultPtr(), GeomShapePtr());
 257   }
 258
 259   keepCurrentFeature();
 260
 261   bool isProjected = false;
 262   if (aVertex)
 263     isProjected = projectPoint(aProjection, aVertex->point());
 264   else
 265     isProjected = projectEdge(aProjection, anEdge);
 266
 267   if (!isProjected)
 268     return; // projection is not computed, stop processing
 269
 270   bool keepBackRef = isKeepReference(string(KEEP_REFERENCE_ID()));
 271
 272   aProjection->boolean(COPY_ID())->setValue(keepBackRef);
 273   aProjection->execute();
 274   aRefAttr->setObject(aProjection);
 275
 276   restoreCurrentFeature();
 277
 278   AttributeBooleanPtr aMakeFixedAttr = boolean(MAKE_FIXED());
 279   bool isMakeFixed = aMakeFixedAttr && aMakeFixedAttr->isInitialized() && aMakeFixedAttr->value();
 280
 281   AttributeReferencePtr aFixedConstrAttr = reference(FIXED_CONSTRAINT_ID());
 282   FeaturePtr aFixedConstraint;
 283   if (aFixedConstrAttr && aFixedConstrAttr->isInitialized())
 284     aFixedConstraint = ModelAPI_Feature::feature(aFixedConstrAttr->value());
 285
 286   if (keepBackRef) {
 287     if (theID == EXTERNAL_FEATURE_ID()) {
 288       selection(EXTERNAL_ID())->selectValue(aExtFeature);
 289
 290       if (aResult) {
 291         aResult->setShape(aProjection->lastResult()->shape());
 292         setResult(aResult);
 293         GeomShapePtr anEmptyVal;
 294         aProjection->selection(EXTERNAL_ID())->setValue(lastResult(), anEmptyVal);
 295       }
 296     }
 297   }
 298   else if (isMakeFixed) {
 299     // fix the projected entity with the Fixed constraint
 300     if (!aFixedConstraint)
 301       aFixedConstraint = sketch()->addFeature(SketchPlugin_ConstraintRigid::ID());
 302     aFixedConstraint->refattr(SketchPlugin_Constraint::ENTITY_A())->setObject(
 303                               aProjection->lastResult());
 304   }
 305
 306
 307   // remove Fixed constraint in case of redundance
 308   if (aFixedConstraint && (keepBackRef || !isMakeFixed)) {
 309     document()->removeFeature(aFixedConstraint);
 310     aFixedConstraint = FeaturePtr();
 311   }
 312   aFixedConstrAttr->setValue(aFixedConstraint);
 313
 314   static const Events_ID anEvent = Events_Loop::eventByName(EVENT_VISUAL_ATTRIBUTES);
 315   ModelAPI_EventCreator::get()->sendUpdated(aProjection, anEvent, false);
 316 }
 317
 318 bool SketchPlugin_Projection::rebuildProjectedFeature(
 319     FeaturePtr& theProjection,
 320     const std::set<std::string>& theSupportedTypes,
 321     const std::string& theRequestedFeature)
 322 {
 323   bool isRebuild = false;
 324   if (theProjection &&
 325       (theSupportedTypes.find(theProjection->getKind()) == theSupportedTypes.end() ||
 326       (!theRequestedFeature.empty() && theProjection->getKind() != theRequestedFeature))) {
 327     DocumentPtr aDoc = sketch()->document();
 328
 329     AttributeRefAttrPtr aRefAttr = data()->refattr(PROJECTED_FEATURE_ID());
 330     aRefAttr->setObject(data()->owner()); // to not remove of this remove reference to aProjection
 331     std::set<FeaturePtr> aFeaturesToBeRemoved;
 332     aFeaturesToBeRemoved.insert(theProjection);
 333     ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToBeRemoved);
 334     theProjection = FeaturePtr();
 335     aRefAttr->setObject(theProjection);
 336     isRebuild = true;
 337   }
 338
 339   if (!theProjection && !theRequestedFeature.empty())
 340     theProjection = sketch()->addFeature(theRequestedFeature);
 341   return isRebuild;
 342 }
 343
 344 bool SketchPlugin_Projection::projectPoint(FeaturePtr& theProjection, const GeomPointPtr& thePoint)
 345 {
 346   std::shared_ptr<GeomAPI_Pln> aSketchPlane = sketch()->plane();
 347
 348   std::shared_ptr<GeomAPI_Pnt> aPrjPnt = aSketchPlane->project(thePoint);
 349   std::shared_ptr<GeomAPI_Pnt2d> aPntInSketch = sketch()->to2D(aPrjPnt);
 350
 351   rebuildProjectedFeature(theProjection, POINT_PROJECTION(), SketchPlugin_Point::ID());
 352
 353   // update coordinates of projection
 354   std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 355       theProjection->attribute(SketchPlugin_Point::COORD_ID()))->setValue(aPntInSketch);
 356   return true;
 357 }
 358
 359 bool SketchPlugin_Projection::projectSegment(FeaturePtr& theProjection, const GeomEdgePtr& theEdge)
 360 {
 361   std::shared_ptr<GeomAPI_Pln> aSketchPlane = sketch()->plane();
 362
 363   std::shared_ptr<GeomAPI_Pnt> aFirst = aSketchPlane->project(theEdge->firstPoint());
 364   std::shared_ptr<GeomAPI_Pnt> aLast = aSketchPlane->project(theEdge->lastPoint());
 365
 366   std::shared_ptr<GeomAPI_Pnt2d> aFirstInSketch = sketch()->to2D(aFirst);
 367   std::shared_ptr<GeomAPI_Pnt2d> aLastInSketch = sketch()->to2D(aLast);
 368   if (aFirstInSketch->distance(aLastInSketch) < tolerance)
 369     return false; // line is semi-orthogonal to the sketch plane
 370
 371   rebuildProjectedFeature(theProjection, LINE_PROJECTION(), SketchPlugin_Line::ID());
 372
 373   // update attributes of projection
 374   std::shared_ptr<GeomDataAPI_Point2D> aStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 375       theProjection->attribute(SketchPlugin_Line::START_ID()));
 376   std::shared_ptr<GeomDataAPI_Point2D> aEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 377       theProjection->attribute(SketchPlugin_Line::END_ID()));
 378   aStartPnt->setValue(aFirstInSketch);
 379   aEndPnt->setValue(aLastInSketch);
 380
 381   return true;
 382 }
 383
 384 bool SketchPlugin_Projection::projectEdge(FeaturePtr& theProjection, const GeomEdgePtr& theEdge)
 385 {
 386   if (theEdge->isLine())
 387     return projectSegment(theProjection, theEdge);
 388
 389   std::shared_ptr<GeomAPI_Pln> aSketchPlane = sketch()->plane();
 390
 391   GeomAlgoAPI_Projection aProjAlgo(aSketchPlane);
 392   GeomCurvePtr aProjectedCurve = aProjAlgo.project(theEdge);
 393
 394   bool isOk = false;
 395   if (aProjectedCurve->isCircle()) {
 396     if (aProjectedCurve->isTrimmed()) {
 397       // ARC is a projection
 398       isOk = fillArc(theProjection, aProjectedCurve, aSketchPlane, theEdge);
 399     }
 400     else {
 401       // CIRCLE is a projection
 402       isOk = fillCircle(theProjection, aProjectedCurve, aSketchPlane);
 403     }
 404   }
 405   else if (aProjectedCurve->isEllipse()) {
 406     if (aProjectedCurve->isTrimmed()) {
 407       // ELLIPTIC ARC is a projection
 408       isOk = fillEllipticArc(theProjection, aProjectedCurve, aSketchPlane, theEdge);
 409     }
 410     else {
 411       // ELLIPSE is a projection
 412       isOk = fillEllipse(theProjection, aProjectedCurve, aSketchPlane);
 413     }
 414   }
 415   else
 416     isOk = fillBSpline(theProjection, aProjectedCurve, aSketchPlane);
 417
 418   return isOk;
 419 }
 420
 421 bool SketchPlugin_Projection::fillArc(FeaturePtr& theProjection,
 422                                       const GeomCurvePtr& theArc,
 423                                       const GeomPlanePtr& thePlane,
 424                                       const GeomEdgePtr& theOriginalEdge)
 425 {
 426   rebuildProjectedFeature(theProjection, ARC_PROJECTION(), SketchPlugin_Arc::ID());
 427
 428   GeomAPI_Circ aCircle(theArc);
 429
 430   double aNormalsDot = aCircle.normal()->dot(thePlane->direction());
 431   if (fabs(fabs(aNormalsDot) - 1.0) > tolerance)
 432     return false; // arc is not in the plane, parallel to the sketch plane
 433
 434   bool isInversed = aNormalsDot < 0.;
 435
 436   GeomCirclePtr anOriginalCircle = theOriginalEdge->circle();
 437   if (anOriginalCircle) {
 438     double aCirclesDot = anOriginalCircle->normal()->dot(aCircle.normal());
 439     if (aCirclesDot < 0.)
 440       isInversed = !isInversed;
 441   }
 442
 443   GeomPointPtr aCenter = thePlane->project(aCircle.center());
 444   GeomPnt2dPtr aCenterInSketch = sketch()->to2D(aCenter);
 445
 446   GeomPointPtr aFirst = theArc->getPoint(theArc->startParam());
 447   GeomPnt2dPtr aFirstInSketch = sketch()->to2D(thePlane->project(aFirst));
 448
 449   GeomPointPtr aLast = theArc->getPoint(theArc->endParam());
 450   GeomPnt2dPtr aLastInSketch = sketch()->to2D(thePlane->project(aLast));
 451
 452   bool aWasBlocked = theProjection->data()->blockSendAttributeUpdated(true);
 453
 454   // update attributes of projection
 455   std::shared_ptr<GeomDataAPI_Point2D> aCenterPnt =
 456       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 457       theProjection->attribute(SketchPlugin_Arc::CENTER_ID()));
 458   std::shared_ptr<GeomDataAPI_Point2D> aStartPnt =
 459       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 460       theProjection->attribute(SketchPlugin_Arc::START_ID()));
 461   std::shared_ptr<GeomDataAPI_Point2D> aEndPnt =
 462       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 463       theProjection->attribute(SketchPlugin_Arc::END_ID()));
 464   aStartPnt->setValue(aFirstInSketch);
 465   aEndPnt->setValue(aLastInSketch);
 466   aCenterPnt->setValue(aCenterInSketch);
 467   theProjection->boolean(SketchPlugin_Arc::REVERSED_ID())->setValue(isInversed);
 468
 469   theProjection->data()->blockSendAttributeUpdated(aWasBlocked);
 470   return true;
 471 }
 472
 473 bool SketchPlugin_Projection::fillCircle(FeaturePtr& theProjection,
 474                                          const GeomCurvePtr& theCircle,
 475                                          const GeomPlanePtr& thePlane)
 476 {
 477   rebuildProjectedFeature(theProjection, CIRCLE_ELLIPSE_PROJECTION(), SketchPlugin_Circle::ID());
 478
 479   GeomAPI_Circ aCircle(theCircle);
 480   GeomPointPtr aCenter = thePlane->project(aCircle.center());
 481   GeomPnt2dPtr aCenterInSketch = sketch()->to2D(aCenter);
 482
 483   // update attributes of projection
 484   std::shared_ptr<GeomDataAPI_Point2D> aCenterPnt =
 485       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 486       theProjection->attribute(SketchPlugin_Circle::CENTER_ID()));
 487   aCenterPnt->setValue(aCenterInSketch);
 488   theProjection->real(SketchPlugin_Circle::RADIUS_ID())->setValue(aCircle.radius());
 489   return true;
 490 }
 491
 492 bool SketchPlugin_Projection::fillEllipse(FeaturePtr& theProjection,
 493                                           const GeomCurvePtr& theEllipse,
 494                                           const GeomPlanePtr& thePlane)
 495 {
 496   rebuildProjectedFeature(theProjection, CIRCLE_ELLIPSE_PROJECTION(), SketchPlugin_Ellipse::ID());
 497
 498   GeomAPI_Ellipse anEllipse(theEllipse);
 499   GeomPointPtr aCenter = thePlane->project(anEllipse.center());
 500   GeomPnt2dPtr aCenterInSketch = sketch()->to2D(aCenter);
 501   GeomPointPtr aFocus = thePlane->project(anEllipse.firstFocus());
 502   GeomPnt2dPtr aFocusInSketch = sketch()->to2D(aFocus);
 503
 504   // update attributes of projection
 505   std::shared_ptr<GeomDataAPI_Point2D> aCenterPnt =
 506       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 507       theProjection->attribute(SketchPlugin_Ellipse::CENTER_ID()));
 508   aCenterPnt->setValue(aCenterInSketch);
 509   std::shared_ptr<GeomDataAPI_Point2D> aFocusPnt =
 510       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 511       theProjection->attribute(SketchPlugin_Ellipse::FIRST_FOCUS_ID()));
 512   aFocusPnt->setValue(aFocusInSketch);
 513   theProjection->real(SketchPlugin_Ellipse::MINOR_RADIUS_ID())->setValue(anEllipse.minorRadius());
 514   return true;
 515 }
 516
 517 bool SketchPlugin_Projection::fillEllipticArc(FeaturePtr& theProjection,
 518                                               const GeomCurvePtr& theEllipticArc,
 519                                               const GeomPlanePtr& thePlane,
 520                                               const GeomEdgePtr& theOriginalEdge)
 521 {
 522   rebuildProjectedFeature(theProjection, ARC_PROJECTION(), SketchPlugin_EllipticArc::ID());
 523
 524   GeomAPI_Ellipse anEllipse(theEllipticArc);
 525
 526   double aNormalsDot = anEllipse.normal()->dot(thePlane->direction());
 527   if (fabs(fabs(aNormalsDot) - 1.0) > tolerance)
 528     return false; // arc is not in the plane, parallel to the sketch plane
 529
 530   bool isInversed = aNormalsDot < 0.;
 531
 532   GeomEllipsePtr anOriginalEllipse = theOriginalEdge->ellipse();
 533   if (anOriginalEllipse) {
 534     double anEllipsesDot = anOriginalEllipse->normal()->dot(anEllipse.normal());
 535     if (anEllipsesDot < 0.)
 536       isInversed = !isInversed;
 537   }
 538
 539   GeomPointPtr aCenter = thePlane->project(anEllipse.center());
 540   GeomPnt2dPtr aCenterInSketch = sketch()->to2D(aCenter);
 541   GeomPointPtr aFocus = thePlane->project(anEllipse.firstFocus());
 542   GeomPnt2dPtr aFocusInSketch = sketch()->to2D(aFocus);
 543
 544   GeomPointPtr aFirst = theEllipticArc->getPoint(theEllipticArc->startParam());
 545   GeomPnt2dPtr aFirstInSketch = sketch()->to2D(thePlane->project(aFirst));
 546   GeomPointPtr aLast = theEllipticArc->getPoint(theEllipticArc->endParam());
 547   GeomPnt2dPtr aLastInSketch = sketch()->to2D(thePlane->project(aLast));
 548
 549   bool aWasBlocked = theProjection->data()->blockSendAttributeUpdated(true);
 550
 551   // update attributes of projection
 552   std::shared_ptr<GeomDataAPI_Point2D> aCenterPnt =
 553       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 554       theProjection->attribute(SketchPlugin_EllipticArc::CENTER_ID()));
 555   std::shared_ptr<GeomDataAPI_Point2D> aFocusPnt =
 556       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 557       theProjection->attribute(SketchPlugin_EllipticArc::FIRST_FOCUS_ID()));
 558   std::shared_ptr<GeomDataAPI_Point2D> aStartPnt =
 559       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 560       theProjection->attribute(SketchPlugin_EllipticArc::START_POINT_ID()));
 561   std::shared_ptr<GeomDataAPI_Point2D> aEndPnt =
 562       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 563       theProjection->attribute(SketchPlugin_EllipticArc::END_POINT_ID()));
 564   aStartPnt->setValue(aFirstInSketch);
 565   aEndPnt->setValue(aLastInSketch);
 566   aCenterPnt->setValue(aCenterInSketch);
 567   aFocusPnt->setValue(aFocusInSketch);
 568   theProjection->boolean(SketchPlugin_EllipticArc::REVERSED_ID())->setValue(isInversed);
 569
 570   theProjection->data()->blockSendAttributeUpdated(aWasBlocked);
 571   return true;
 572 }
 573
 574 bool SketchPlugin_Projection::fillBSpline(FeaturePtr& theProjection,
 575                                           const GeomCurvePtr& theCurve,
 576                                           const GeomPlanePtr& /*thePlane*/)
 577 {
 578   GeomAPI_BSpline aBSpline(theCurve);
 579
 580   rebuildProjectedFeature(theProjection, BSPLINE_PROJECTION(),
 581       aBSpline.isPeriodic() ? SketchPlugin_BSplinePeriodic::ID() : SketchPlugin_BSpline::ID());
 582
 583   theProjection->integer(SketchPlugin_BSpline::DEGREE_ID())->setValue(aBSpline.degree());
 584
 585   AttributePoint2DArrayPtr aPolesAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(
 586       theProjection->attribute(SketchPlugin_BSpline::POLES_ID()));
 587   std::list<GeomPointPtr> aPoles = aBSpline.poles();
 588   aPolesAttr->setSize((int)aPoles.size());
 589   std::list<GeomPointPtr>::iterator anIt = aPoles.begin();
 590   for (int anIndex = 0; anIt != aPoles.end(); ++anIt, ++anIndex) {
 591     GeomPnt2dPtr aPoleInSketch = sketch()->to2D(*anIt);
 592     aPolesAttr->setPnt(anIndex, aPoleInSketch);
 593   }
 594
 595   AttributeDoubleArrayPtr aWeightsAttr =
 596       theProjection->data()->realArray(SketchPlugin_BSpline::WEIGHTS_ID());
 597   std::list<double> aWeights = aBSpline.weights();
 598   if (aWeights.empty()) { // rational B-spline
 599     int aSize = (int)aPoles.size();
 600     aWeightsAttr->setSize(aSize);
 601     for (int anIndex = 0; anIndex < aSize; ++anIndex)
 602       aWeightsAttr->setValue(anIndex, 1.0);
 603   }
 604   else { // non-rational B-spline
 605     aWeightsAttr->setSize((int)aWeights.size());
 606     std::list<double>::iterator aWIt = aWeights.begin();
 607     for (int anIndex = 0; aWIt != aWeights.end(); ++aWIt, ++anIndex)
 608       aWeightsAttr->setValue(anIndex, *aWIt);
 609   }
 610
 611   AttributeDoubleArrayPtr aKnotsAttr =
 612       theProjection->data()->realArray(SketchPlugin_BSpline::KNOTS_ID());
 613   std::list<double> aKnots = aBSpline.knots();
 614   int aSize = (int)aKnots.size();
 615   aKnotsAttr->setSize(aSize);
 616   std::list<double>::iterator aKIt = aKnots.begin();
 617   for (int index = 0; index < aSize; ++index, ++aKIt)
 618     aKnotsAttr->setValue(index, *aKIt);
 619
 620   AttributeIntArrayPtr aMultsAttr =
 621       theProjection->data()->intArray(SketchPlugin_BSpline::MULTS_ID());
 622   std::list<int> aMultiplicities = aBSpline.mults();
 623   aSize = (int)aMultiplicities.size();
 624   aMultsAttr->setSize(aSize);
 625   std::list<int>::iterator aMIt = aMultiplicities.begin();
 626   for (int index = 0; index < aSize; ++index, ++aMIt)
 627     aMultsAttr->setValue(index, *aMIt);
 628
 629   return true;
 630 }