src/SketchPlugin/SketchPlugin_Validators.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_Validators.h"
  21
  22 #include "SketchPlugin_Arc.h"
  23 #include "SketchPlugin_Circle.h"
  24 #include "SketchPlugin_ConstraintCoincidence.h"
  25 #include "SketchPlugin_ConstraintDistance.h"
  26 #include "SketchPlugin_ConstraintRigid.h"
  27 #include "SketchPlugin_ConstraintTangent.h"
  28 #include "SketchPlugin_Ellipse.h"
  29 #include "SketchPlugin_EllipticArc.h"
  30 #include "SketchPlugin_Fillet.h"
  31 #include "SketchPlugin_Line.h"
  32 #include "SketchPlugin_MacroArc.h"
  33 #include "SketchPlugin_MacroCircle.h"
  34 #include "SketchPlugin_MultiRotation.h"
  35 #include "SketchPlugin_Point.h"
  36 #include "SketchPlugin_Sketch.h"
  37 #include "SketchPlugin_Trim.h"
  38 #include "SketchPlugin_Tools.h"
  39
  40 #include "SketcherPrs_Tools.h"
  41
  42 #include <Events_InfoMessage.h>
  43
  44 #include <ModelAPI_Data.h>
  45 #include <ModelAPI_Validator.h>
  46 #include <ModelAPI_AttributeDouble.h>
  47 #include <ModelAPI_AttributeInteger.h>
  48 #include <ModelAPI_AttributeRefAttr.h>
  49 #include <ModelAPI_AttributeRefList.h>
  50 #include <ModelAPI_AttributeSelectionList.h>
  51 #include <ModelAPI_AttributeString.h>
  52 #include <ModelAPI_Session.h>
  53 #include <ModelAPI_Tools.h>
  54 #include <ModelAPI_ResultConstruction.h>
  55
  56 #include <ModelGeomAlgo_Point2D.h>
  57 #include <ModelGeomAlgo_Shape.h>
  58
  59 #include <GeomAlgoAPI_EdgeBuilder.h>
  60 #include <GeomAlgoAPI_ShapeTools.h>
  61
  62 #include <GeomAPI_Circ.h>
  63 #include <GeomAPI_Dir2d.h>
  64 #include <GeomAPI_Ellipse.h>
  65 #include <GeomAPI_Lin.h>
  66 #include <GeomAPI_Edge.h>
  67 #include <GeomAPI_Vertex.h>
  68 #include <GeomDataAPI_Point2D.h>
  69
  70 #include <algorithm>
  71 #include <cmath>
  72
  73 const double tolerance = 1.e-7;
  74
  75 bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute,
  76                                                  const std::list<std::string>& theArguments,
  77                                                  Events_InfoMessage& theError) const
  78 {
  79   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
  80     theError = "The attribute with the %1 type is not processed";
  81     theError.arg(theAttribute->attributeType());
  82     return false;
  83   }
  84
  85   // there is a check whether the feature contains a point and a linear edge or two point values
  86   std::string aParamA = theArguments.front();
  87   SessionPtr aMgr = ModelAPI_Session::get();
  88   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
  89
  90   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
  91                                                                       (theAttribute);
  92   bool isObject = aRefAttr->isObject();
  93   if (!isObject) {
  94     // an attribute is a point. A point value is valid always for the distance
  95     return true;
  96   } else {
  97     // 1. check whether the references object is a linear
  98     ObjectPtr anObject = aRefAttr->object();
  99
 100     const ModelAPI_AttributeValidator* aShapeValidator =
 101       dynamic_cast<const ModelAPI_AttributeValidator*>(
 102       aFactory->validator("GeomValidators_ShapeType"));
 103     std::list<std::string> anArguments;
 104     anArguments.push_back("circle");
 105     Events_InfoMessage aCircleError;
 106     bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
 107     // the circle line is not a valid case
 108     if (aShapeValid) {
 109       theError = "Circle can not be used in distance constraint";
 110       return false;
 111     }
 112
 113     anArguments.clear();
 114     anArguments.push_back("line");
 115     Events_InfoMessage aLineError;
 116     aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
 117     // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
 118     if (aShapeValid) {
 119       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 120       // If it is a line then we have to check that first attribute id not a line
 121       std::shared_ptr<SketchPlugin_Feature> aSFeature =
 122         std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 123       SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 124       std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
 125       std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
 126         aFeature->data(), aParamA, aPlane);
 127       if (!aPoint.get()) {
 128         theError = "One of parameters of distance constraint should be a point";
 129         return false;
 130       }
 131     }
 132   }
 133   return true;
 134 }
 135
 136 bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute,
 137                                                 const std::list<std::string>& theArguments,
 138                                                 Events_InfoMessage& theError) const
 139 {
 140   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 141     theError = "The attribute with the %1 type is not processed";
 142     theError.arg(theAttribute->attributeType());
 143     return false;
 144   }
 145
 146   // there is a check whether the feature contains a point and a linear edge or two point values
 147   std::string aParamA = theArguments.front();
 148   SessionPtr aMgr = ModelAPI_Session::get();
 149   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 150
 151   FeaturePtr anAttributeFeature =
 152     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 153   AttributeRefAttrPtr aRefAttr =
 154     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 155
 156   bool isObject = aRefAttr->isObject();
 157   ObjectPtr anObject = aRefAttr->object();
 158   if (isObject && anObject.get()) {
 159     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 160
 161     AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 162     ObjectPtr aOtherObject = aOtherAttr->object();
 163     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 164     if (!aOtherFea)
 165       return true;
 166
 167     if (aRefFea->getKind() == SketchPlugin_Line::ID() &&
 168         aOtherFea->getKind() == SketchPlugin_Line::ID()) {
 169       theError = "Two segments cannot be tangent";
 170       return false;
 171     }
 172     return true;
 173   }
 174   else {
 175     theError = "It uses an empty object";
 176     return false;
 177   }
 178
 179   return true;
 180 }
 181
 182 bool SketchPlugin_PerpendicularAttrValidator::isValid(const AttributePtr& theAttribute,
 183                                                       const std::list<std::string>& theArguments,
 184                                                       Events_InfoMessage& theError) const
 185 {
 186   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 187     theError = "The attribute with the %1 type is not processed";
 188     theError.arg(theAttribute->attributeType());
 189     return false;
 190   }
 191
 192   std::string aParamA = theArguments.front();
 193   SessionPtr aMgr = ModelAPI_Session::get();
 194   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 195
 196   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 197   AttributeRefAttrPtr aRefAttr =
 198       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 199
 200   bool isObject = aRefAttr->isObject();
 201   ObjectPtr anObject = aRefAttr->object();
 202   if (isObject && anObject.get()) {
 203     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 204
 205     AttributeRefAttrPtr aOtherAttr = anOwner->refattr(aParamA);
 206     ObjectPtr aOtherObject = aOtherAttr->object();
 207     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 208     if (!aOtherFea)
 209       return true;
 210
 211     // at least one feature should be a line
 212     if (aRefFea->getKind() != SketchPlugin_Line::ID() &&
 213         aOtherFea->getKind() != SketchPlugin_Line::ID()) {
 214       theError = "At least one feature should be a line";
 215       return false;
 216     }
 217   }
 218   else {
 219     theError = "It uses an empty object";
 220     return false;
 221   }
 222
 223   return true;
 224 }
 225
 226 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 227                                              const std::list<std::string>& theArguments,
 228                                              Events_InfoMessage& theError) const
 229 {
 230   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 231     theError = "The attribute with the %1 type is not processed";
 232     theError.arg(theAttribute->attributeType());
 233     return false;
 234   }
 235
 236   std::shared_ptr<SketchPlugin_Feature> aFeature =
 237       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 238   if (!aFeature)
 239     return true;
 240
 241   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 242
 243   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 244   int aNbFeatures = aSketch->numberOfSubs();
 245   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 246     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 247     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 248       continue;
 249     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 250         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 251     if (aRefAttr->isObject()) {
 252       if (aRefAttr->object() == aRAttr->object()) {
 253         ObjectPtr anObject = aRefAttr->object();
 254         std::string aName = anObject.get() ? anObject->data()->name() : "";
 255         theError = "The object %1 has been already fixed.";
 256         theError.arg(aName);
 257         return false;
 258       }
 259     }
 260     else if (aRefAttr->attr() == aRAttr->attr()) {
 261       AttributePtr anAttribute = aRefAttr->attr();
 262       std::string aName = anAttribute.get() ? anAttribute->id() : "";
 263       theError = "The attribute %1 has been already fixed.";
 264       theError.arg(aName);
 265       return false;
 266     }
 267   }
 268   return true;
 269 }
 270
 271 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 272                                               const std::list<std::string>& theArguments,
 273                                               Events_InfoMessage& theError) const
 274 {
 275   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 276     theError = "The attribute with the %1 type is not processed";
 277     theError.arg(theAttribute->attributeType());
 278     return false;
 279   }
 280
 281   std::string aParamA = theArguments.front();
 282   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 283   AttributeRefAttrPtr aRefAttr[2];
 284   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 285   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 286
 287   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 288     theError = "Attributes can not be used in equal constraint";
 289     return false;
 290   }
 291
 292   std::string aType[2];
 293   std::list<std::string> anArguments;
 294   for (int i = 0; i < 2; i++) {
 295     ObjectPtr anObject = aRefAttr[i]->object();
 296     if (!anObject.get()) {
 297       theError = "An empty object is used.";
 298       return false;
 299     }
 300
 301     aFeature = ModelAPI_Feature::feature(anObject);
 302     if (!aFeature.get()) {
 303       theError = "An empty feature is used.";
 304       return false;
 305     }
 306
 307     aType[i] = aFeature->getKind();
 308     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 309         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 310         aFeature->getKind() != SketchPlugin_Arc::ID() &&
 311         aFeature->getKind() != SketchPlugin_Ellipse::ID() &&
 312         aFeature->getKind() != SketchPlugin_EllipticArc::ID()) {
 313       theError = "The %1 feature is not supported by the Equal constraint.";
 314       theError.arg(aFeature->getKind());
 315       // wrong type of attribute
 316       return false;
 317     }
 318   }
 319
 320   bool isOk = aType[0] == aType[1];
 321   if (!isOk) {
 322     // circle and arc may be equal
 323     isOk = (aType[0] == SketchPlugin_Arc::ID() && aType[1] == SketchPlugin_Circle::ID())
 324         || (aType[0] == SketchPlugin_Circle::ID() && aType[1] == SketchPlugin_Arc::ID());
 325   }
 326   if (!isOk) {
 327     // ellipse and elliptic arc may be equal
 328     isOk = (aType[0] == SketchPlugin_EllipticArc::ID() && aType[1] == SketchPlugin_Ellipse::ID())
 329         || (aType[0] == SketchPlugin_Ellipse::ID() && aType[1] == SketchPlugin_EllipticArc::ID());
 330   }
 331   if (!isOk) {
 332     theError = "Features with kinds %1 and %2 can not be equal.";
 333     theError.arg(aType[0]).arg(aType[1]);
 334     return false;
 335   }
 336   return true;
 337 }
 338
 339 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 340                                                const std::list<std::string>& theArguments,
 341                                                Events_InfoMessage& theError) const
 342 {
 343   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 344     theError = "The attribute with the %1 type is not processed";
 345     theError.arg(theAttribute->attributeType());
 346     return false;
 347   }
 348
 349   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 350   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 351
 352   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 353       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 354   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 355
 356   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 357     ObjectPtr aSelObject = aSelAttr->object(anInd);
 358     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 359     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 360     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 361       if (aSelObject == *aMirIter) {
 362         theError = "The object %1 is a result of mirror";
 363         theError.arg(aName);
 364         return false;
 365       }
 366   }
 367   return true;
 368 }
 369
 370 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 371                                                     const std::list<std::string>& theArguments,
 372                                                     Events_InfoMessage& theError) const
 373 {
 374   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 375     theError = "The attribute with the %1 type is not processed";
 376     theError.arg(theAttribute->attributeType());
 377     return false;
 378   }
 379
 380   // there is a check whether the feature contains a point and a linear edge or two point values
 381   std::string aParamA = theArguments.front();
 382   SessionPtr aMgr = ModelAPI_Session::get();
 383   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 384
 385   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 386   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 387   if (!aRefAttrA) {
 388     theError = "The %1 attribute should be %2";
 389     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 390     return false;
 391   }
 392
 393   AttributeRefAttrPtr aRefAttrB =
 394     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 395
 396   // first attribute is a point, it may coincide with any object
 397   if (!aRefAttrA->isObject())
 398     return true;
 399   else {
 400     ObjectPtr anObject = aRefAttrA->object();
 401     if (!anObject.get()) {
 402       theError = "%1 attribute has an empty object";
 403       theError.arg(aParamA);
 404       return false;
 405     }
 406     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 407     if (!aFeature.get()) {
 408       theError = "%1 attribute has an empty feature";
 409       theError.arg(aParamA);
 410       return false;
 411     }
 412
 413     if (aFeature->getKind() == SketchPlugin_Point::ID())
 414       return true;
 415   }
 416
 417   // second attribute is a point, it may coincide with any object
 418   if (!aRefAttrB->isObject())
 419     return true;
 420   else {
 421     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 422     if (!aFeature) {
 423       theError = "%1 attribute has an empty object";
 424       theError.arg(theAttribute->id());
 425       return false;
 426     }
 427     if (aFeature->getKind() == SketchPlugin_Point::ID())
 428       return true;
 429   }
 430   theError = "There is no an attribute filled by a point";
 431   return false;
 432 }
 433
 434
 435 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 436                                          const std::list<std::string>& theArguments,
 437                                          Events_InfoMessage& theError) const
 438 {
 439   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 440     theError = "The attribute with the %1 type is not processed";
 441     theError.arg(theAttribute->attributeType());
 442     return false;
 443   }
 444
 445   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 446   AttributeRefListPtr aSelAttr =
 447     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 448
 449   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 450       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 451   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 452       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 453   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 454   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 455
 456   std::list<ObjectPtr>::iterator anObjIter;
 457   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 458     ObjectPtr aSelObject = aSelAttr->object(anInd);
 459     anObjIter = anInitialObjects.begin();
 460     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 461       if (aSelObject == *anObjIter)
 462         break;
 463     if (anObjIter != anInitialObjects.end())
 464       continue;
 465     anObjIter = aCopiedObjects.begin();
 466     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 467       if (aSelObject == *anObjIter) {
 468         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 469         theError = "The object %1 is a result of copy";
 470         theError.arg(aName);
 471         return false;
 472       }
 473   }
 474   return true;
 475 }
 476
 477 bool SketchPlugin_SolverErrorValidator::isValid(
 478   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 479   const std::list<std::string>& theArguments,
 480   Events_InfoMessage& theError) const
 481 {
 482   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 483
 484   if (!aAttributeString->value().empty()) {
 485     theError = aAttributeString->value();
 486     return false;
 487   }
 488
 489   return true;
 490 }
 491
 492 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 493                                                         std::string theAttribute)
 494 {
 495   return true;
 496 }
 497
 498 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 499                                   const FeaturePtr theFeature)
 500 {
 501   for(std::set<AttributePtr>::const_iterator
 502       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 503     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 504     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 505     if (!aFeature)
 506       continue;
 507     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 508       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 509         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 510       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 511         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 512       if(anAttrRefA.get()) {
 513         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 514         if(aResA.get()) {
 515           DocumentPtr aDoc = aResA->document();
 516           if(aDoc.get()) {
 517             FeaturePtr aFeatureA = aDoc->feature(aResA);
 518             if(aFeatureA.get() && aFeatureA == theFeature) {
 519               return true;
 520             }
 521           }
 522         }
 523       }
 524       if(anAttrRefB.get()) {
 525         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 526         if(aResB.get()) {
 527           DocumentPtr aDoc = aResB->document();
 528           if(aDoc.get()) {
 529             FeaturePtr aFeatureB = aDoc->feature(aResB);
 530             if(aFeatureB.get() && aFeatureB == theFeature) {
 531               return true;
 532             }
 533           }
 534         }
 535       }
 536     }
 537   }
 538   return false;
 539 }
 540
 541 static bool isPointPointCoincidence(const FeaturePtr& theCoincidence)
 542 {
 543   AttributeRefAttrPtr aRefAttr[2] = {
 544       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_A()),
 545       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_B())
 546   };
 547
 548   bool arePoints = true;
 549   for (int i = 0; i < 2 && arePoints; ++i) {
 550     if (aRefAttr[i]->isObject()) {
 551       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 552       arePoints = aFeature.get() && aFeature->getKind() == SketchPlugin_Point::ID();
 553     } else
 554       arePoints = aRefAttr[i]->attr().get() != NULL;
 555   }
 556   return arePoints;
 557 }
 558
 559 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 560                                                  const std::list<std::string>& theArguments,
 561                                                  Events_InfoMessage& theError) const
 562 {
 563   AttributeRefAttrPtr aPointRefAttr =
 564     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 565   if(!aPointRefAttr.get()) {
 566     theError = "Error: Point not selected.";
 567     return false;
 568   }
 569
 570   AttributePtr aPointAttribute = aPointRefAttr->attr();
 571   if (!aPointAttribute.get()) {
 572     theError = "Error: Bad point selected.";
 573     return false;
 574   }
 575   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 576     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 577
 578   // Obtain constraint coincidence for the fillet point.
 579   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 580   FeaturePtr aConstraintCoincidence;
 581   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 582       anIt != aRefsList.cend(); ++anIt) {
 583     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 584     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 585     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 586       if (!isPointPointCoincidence(aConstrFeature))
 587         continue;
 588
 589       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 590         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 591       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 592         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 593
 594       AttributePtr anAttrA = anAttrRefA->attr();
 595       if(aPointAttribute == anAttrA) {
 596         aConstraintCoincidence = aConstrFeature;
 597         break;
 598       }
 599
 600       AttributePtr anAttrB = anAttrRefB->attr();
 601       if(aPointAttribute == anAttrB) {
 602         aConstraintCoincidence = aConstrFeature;
 603         break;
 604       }
 605     }
 606   }
 607
 608   if(!aConstraintCoincidence.get()) {
 609     theError = "Error: one of the selected point does not have coincidence.";
 610     return false;
 611   }
 612
 613   // Get coincides from constraint.
 614   std::set<FeaturePtr> aCoinsides;
 615   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 616                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 617                                         aCoinsides,
 618                                         true);
 619   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 620                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 621                                         aCoinsides,
 622                                         true);
 623
 624   // Remove points and external lines from set of coincides.
 625   std::set<FeaturePtr> aNewSetOfCoincides;
 626   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 627       anIt != aCoinsides.end(); ++anIt) {
 628     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 629       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 630     if(aSketchEntity.get() && (aSketchEntity->isCopy() || aSketchEntity->isExternal())) {
 631       continue;
 632     }
 633     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 634         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 635           continue;
 636     }
 637     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 638       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 639       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 640         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 641       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 642       if(aDistSelectedArcCenter < tolerance) {
 643         continue;
 644       }
 645     }
 646     aNewSetOfCoincides.insert(*anIt);
 647   }
 648   aCoinsides = aNewSetOfCoincides;
 649
 650   // If we still have more than two coincides remove auxilary entities from set of coincides.
 651   if(aCoinsides.size() > 2) {
 652     aNewSetOfCoincides.clear();
 653     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 654         anIt != aCoinsides.end(); ++anIt) {
 655       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 656         aNewSetOfCoincides.insert(*anIt);
 657       }
 658     }
 659     aCoinsides = aNewSetOfCoincides;
 660   }
 661
 662   if(aCoinsides.size() != 2) {
 663     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 664     return false;
 665   }
 666
 667   // Check that selected edges don't have tangent constraint.
 668   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 669   FeaturePtr aFirstFeature = *anIt++;
 670   FeaturePtr aSecondFeature = *anIt;
 671   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 672   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 673     theError = "Error: Edges in selected point has tangent constraint.";
 674     return false;
 675   }
 676
 677   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 678   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 679       aResIt != aFirstResults.end(); ++aResIt) {
 680     ResultPtr aRes = *aResIt;
 681     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 682     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 683       theError = "Error: Edges in selected point has tangent constraint.";
 684       return false;
 685     }
 686   }
 687
 688   // Check the features are not tangent
 689   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 690   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 691   if (!aFirstShape || !aFirstShape->isEdge() ||
 692       !aSecondShape || !aSecondShape->isEdge()) {
 693     theError = "Error: At least on of the features is not an edge";
 694     return false;
 695   }
 696
 697   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 698   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 699
 700   static const double TOL = 1.e-7;
 701   if (anEdge1->isLine() && anEdge2->isLine()) {
 702     // Check that lines not collinear
 703     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 704     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 705     double aCross = aDir1->cross(aDir2)->squareModulus();
 706     if (aCross < TOL * TOL)
 707       return false;
 708   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 709     // check the circles are not tangent
 710     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 711     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 712     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 713     double aRadSum = aCirc1->radius() + aCirc2->radius();
 714     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 715     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 716       return false;
 717   } else {
 718     // check whether line and arc are tangent
 719     std::shared_ptr<GeomAPI_Circ> aCirc;
 720     std::shared_ptr<GeomAPI_Lin> aLine;
 721     if (anEdge1->isLine()) {
 722       aLine = anEdge1->line();
 723       aCirc = anEdge2->circle();
 724     } else {
 725       aCirc = anEdge1->circle();
 726       aLine = anEdge2->line();
 727     }
 728
 729     double aDistCL = aLine->distance(aCirc->center());
 730     if (fabs(aDistCL - aCirc->radius()) < TOL)
 731       return false;
 732   }
 733
 734   return true;
 735 }
 736
 737 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 738                                                     const std::list<std::string>& theArguments,
 739                                                     Events_InfoMessage& theError) const
 740 {
 741   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 742     theError = "The attribute with the %1 type is not processed";
 743     theError.arg(theAttribute->attributeType());
 744     return false;
 745   }
 746
 747   // there is a check whether the feature contains a point and a linear edge or two point values
 748   std::string aParamA = theArguments.front();
 749   SessionPtr aMgr = ModelAPI_Session::get();
 750   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 751
 752   FeaturePtr anAttributeFeature =
 753     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 754   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 755   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 756
 757   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 758   int aNbPoints = 0;
 759   int aNbLines = 0;
 760   for (int i = 0; i < 2; ++i) {
 761     if (!aRefAttrs[i]->isObject())
 762       ++aNbPoints;
 763     else {
 764       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 765       if (!aFeature) {
 766         if (aNbPoints + aNbLines != 0)
 767           return true;
 768         else continue;
 769       }
 770
 771       if (aFeature->getKind() == SketchPlugin_Point::ID())
 772         ++aNbPoints;
 773       else if (aFeature->getKind() == SketchPlugin_Line::ID() ||
 774                aFeature->getKind() == SketchPlugin_Arc::ID() ||
 775                aFeature->getKind() == SketchPlugin_EllipticArc::ID())
 776         ++aNbLines;
 777     }
 778   }
 779
 780   if (aNbPoints != 1 || aNbLines != 1) {
 781     theError = "Middle point constraint allows points and lines only";
 782     return false;
 783   }
 784   return true;
 785 }
 786
 787 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 788                                                     const std::list<std::string>& /*theArguments*/,
 789                                                     Events_InfoMessage& theError) const
 790 {
 791   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 792     theError = "The attribute with the %1 type is not processed";
 793     theError.arg(theAttribute->attributeType());
 794     return false;
 795   }
 796   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 797   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 798   if (anArcTypeAttr && anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TANGENT_EDGE())
 799     return true; // not applicable for non-tangent arcs
 800
 801   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 802   AttributePtr anAttr = aRefAttr->attr();
 803   if (!anAttr) {
 804     theError = "The attribute %1 should be a point";
 805     theError.arg(theAttribute->id());
 806     return false;
 807   }
 808
 809   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 810   const std::string& aFeatureType = anAttrFeature->getKind();
 811   if (aFeatureType == SketchPlugin_Arc::ID()) {
 812     // selected point should not be a center of arc
 813     const std::string& aPntId = anAttr->id();
 814     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 815       theError = "The attribute %1 is not supported";
 816       theError.arg(aPntId);
 817       return false;
 818     }
 819   }
 820   else if (aFeatureType == SketchPlugin_Line::ID()) {
 821     // selected point should be bound point of line
 822     const std::string& aPntId = anAttr->id();
 823     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 824       theError = "The attribute %1 is not supported";
 825       theError.arg(aPntId);
 826       return false;
 827     }
 828   }
 829   else {
 830     theError = "Unable to build tangent arc on %1";
 831     theError.arg(anAttrFeature->getKind());
 832     return false;
 833   }
 834
 835   return true;
 836 }
 837
 838 bool SketchPlugin_ArcTransversalPointValidator::isValid(
 839     const AttributePtr& theAttribute,
 840     const std::list<std::string>& /*theArguments*/,
 841     Events_InfoMessage& theError) const
 842 {
 843   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 844     theError = "The attribute with the %1 type is not processed";
 845     theError.arg(theAttribute->attributeType());
 846     return false;
 847   }
 848   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 849   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 850   if (anArcTypeAttr &&
 851       anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TRANSVERSAL_LINE())
 852     return true; // not applicable for non-transversal arcs
 853
 854   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 855   AttributePtr anAttr = aRefAttr->attr();
 856   if (!anAttr) {
 857     theError = "The attribute %1 should be a point";
 858     theError.arg(theAttribute->id());
 859     return false;
 860   }
 861
 862   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 863   const std::string& aFeatureType = anAttrFeature->getKind();
 864   if (aFeatureType == SketchPlugin_Line::ID()) {
 865     // selected point should be bound point of line
 866     const std::string& aPntId = anAttr->id();
 867     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 868       theError = "The attribute %1 is not supported";
 869       theError.arg(aPntId);
 870       return false;
 871     }
 872   }
 873   else {
 874     theError = "Unable to build perpendicular arc on %1";
 875     theError.arg(anAttrFeature->getKind());
 876     return false;
 877   }
 878
 879   return true;
 880 }
 881
 882 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 883                                                  const std::list<std::string>& theArguments,
 884                                                  Events_InfoMessage& theError) const
 885 {
 886   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 887     theError = "The attribute with the %1 type is not processed";
 888     theError.arg(theAttribute->attributeType());
 889     return false;
 890   }
 891   AttributeSelectionPtr anExternalAttr =
 892       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 893   std::shared_ptr<GeomAPI_Edge> anEdge;
 894   if (anExternalAttr && anExternalAttr->value() && anExternalAttr->value()->isEdge()) {
 895     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->value()));
 896   } else if(anExternalAttr->context() && anExternalAttr->context()->shape() &&
 897             anExternalAttr->context()->shape()->isEdge()) {
 898     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->context()->shape()));
 899   }
 900
 901   if (!anEdge) {
 902     theError = "The attribute %1 should be an edge";
 903     theError.arg(theAttribute->id());
 904     return false;
 905   }
 906
 907   // find a sketch
 908   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 909   std::set<AttributePtr> aRefs = anExternalAttr->owner()->data()->refsToMe();
 910   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 911   for (; anIt != aRefs.end(); ++anIt) {
 912     CompositeFeaturePtr aComp =
 913         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 914     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 915       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 916       break;
 917     }
 918   }
 919   if (!aSketch) {
 920     theError = "There is no sketch referring to the current feature";
 921     return false;
 922   }
 923
 924   // check the edge is intersected with sketch plane
 925   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 926
 927   std::list<GeomPointPtr> anIntersectionsPoints;
 928   anEdge->intersectWithPlane(aPlane, anIntersectionsPoints);
 929   if (anIntersectionsPoints.empty()) {
 930     theError = "The edge is not intersected with sketch plane";
 931     return false;
 932   }
 933   return true;
 934 }
 935
 936 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
 937                                           const std::list<std::string>& theArguments,
 938                                           Events_InfoMessage& theError) const
 939 {
 940   bool aValid = false;
 941
 942   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 943     theError = "The attribute with the %1 type is not processed";
 944     theError.arg(theAttribute->attributeType());
 945     return aValid;
 946   }
 947   AttributeReferencePtr aFeatureAttr =
 948             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 949
 950   ObjectPtr anAttrObject = aFeatureAttr->value();
 951   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
 952   if (!anAttrFeature)
 953     return aValid;
 954
 955   std::set<ResultPtr> anEdgeShapes;
 956   ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
 957   if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
 958     return aValid;
 959
 960   // coincidences to the feature
 961   std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
 962   ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
 963                       SketchPlugin_ConstraintCoincidence::ID(),
 964                       aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
 965
 966   GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
 967   std::shared_ptr<SketchPlugin_Feature> aSFeature =
 968                                 std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
 969   if (!aSFeature)
 970     return false;
 971   SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 972
 973   std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
 974   std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
 975       aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 976   std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 977       aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
 978   std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 979       aData->attribute(SketchPlugin_Sketch::NORM_ID()));
 980   std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
 981
 982   typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
 983                     std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 984                               std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
 985   PointToRefsMap aPointsInfo;
 986
 987   ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
 988                                               aX->dir(), aDirY, aPointsInfo);
 989   int aCoincidentToFeature = (int)aPointsInfo.size();
 990   if (anAttrFeature->getKind() == SketchPlugin_Circle::ID() ||
 991       anAttrFeature->getKind() == SketchPlugin_Ellipse::ID())
 992     aValid = aCoincidentToFeature >= 2;
 993   else
 994     aValid = aCoincidentToFeature >= 1;
 995
 996   return aValid;
 997 }
 998
 999 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
1000                                          const std::list<std::string>& theArguments,
1001                                          Events_InfoMessage& theError) const
1002 {
1003   bool aValid = false;
1004
1005   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1006     theError = "The attribute with the %1 type is not processed";
1007     theError.arg(theAttribute->attributeType());
1008     return aValid;
1009   }
1010   AttributeReferencePtr aBaseObjectAttr =
1011             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1012
1013   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
1014                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1015
1016   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1017   if (!aBaseObject) {
1018     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1019     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1020     aBaseObject = aBaseObjectAttr->value();
1021   }
1022
1023   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
1024   if (!aBaseFeature)
1025     return aValid;
1026
1027   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1028                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
1029   if (!aSketchFeature.get() || aSketchFeature->isCopy())
1030     return aValid;
1031
1032   // point on feature
1033   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1034                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
1035
1036   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
1037
1038   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1039   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
1040                                                               anAttributePnt2d->y());
1041
1042   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
1043   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
1044            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1045                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
1046   SketchPlugin_SegmentationTools::fillObjectShapes(
1047       aTrimFeature.get(), aBaseObject, aCashedShapes, anObjectToPoints);
1048   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
1049
1050   return aShapes.size() > 1;
1051 }
1052
1053 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
1054                                                const std::list<std::string>& theArguments,
1055                                                Events_InfoMessage& theError) const
1056 {
1057   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
1058     theError = "The attribute with the %1 type is not processed";
1059     theError.arg(theAttribute->attributeType());
1060     return false;
1061   }
1062
1063   AttributeSelectionPtr aFeatureAttr =
1064       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
1065   std::shared_ptr<GeomAPI_Edge> anEdge;
1066   std::shared_ptr<SketchPlugin_Feature> aSketchFeature;
1067   if (aFeatureAttr.get()) {
1068     GeomShapePtr aVal = aFeatureAttr->value();
1069     ResultPtr aRes = aFeatureAttr->context();
1070     if (aVal && aVal->isVertex())
1071       return true; // vertex is always could be projected
1072     if (aVal && aVal->isEdge()) {
1073       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
1074     } else if(aRes && aRes->shape()) {
1075       if (aRes->shape()->isVertex())
1076         return true; // vertex is always could be projected
1077       else if (aRes->shape()->isEdge())
1078         anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
1079     }
1080
1081     // try to convert result to sketch feature
1082     if (aRes) {
1083       aSketchFeature =
1084         std::dynamic_pointer_cast<SketchPlugin_Feature>(ModelAPI_Feature::feature(aRes));
1085     }
1086   }
1087   if (!anEdge) {
1088     theError = "The attribute %1 should be an edge or vertex";
1089     theError.arg(theAttribute->id());
1090     return false;
1091   }
1092
1093   // find a sketch
1094   std::shared_ptr<SketchPlugin_Sketch> aSketch;
1095   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
1096   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
1097   for (; anIt != aRefs.end(); ++anIt) {
1098     CompositeFeaturePtr aComp =
1099         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
1100     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
1101       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
1102       break;
1103     }
1104   }
1105   if (!aSketch) {
1106     theError = "There is no sketch referring to the current feature";
1107     return false;
1108   }
1109   if (aSketchFeature && aSketch.get() == aSketchFeature->sketch()) {
1110     theError = "Unable to project feature from the same sketch";
1111     return false;
1112   }
1113
1114   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1115   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
1116   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
1117
1118   if (anEdge->isLine()) {
1119     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1120     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
1121     double aDot = fabs(aNormal->dot(aLineDir));
1122     bool aValid = fabs(aDot - 1.0) >= tolerance * tolerance;
1123     if (!aValid)
1124       theError = "Error: Line is orthogonal to the sketch plane.";
1125     return aValid;
1126   }
1127   else if (anEdge->isCircle() || anEdge->isArc()) {
1128     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1129     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
1130     double aDot = fabs(aNormal->dot(aCircNormal));
1131     bool aValid = aDot >= tolerance * tolerance;
1132     if (!aValid)
1133       theError.arg(anEdge->isCircle() ? "Error: Circle is orthogonal to the sketch plane."
1134                                       : "Error: Arc is orthogonal to the sketch plane.");
1135     return aValid;
1136   }
1137   else if (anEdge->isEllipse()) {
1138     std::shared_ptr<GeomAPI_Ellipse> anEllipse = anEdge->ellipse();
1139     std::shared_ptr<GeomAPI_Dir> anEllipseNormal = anEllipse->normal();
1140     double aDot = fabs(aNormal->dot(anEllipseNormal));
1141     bool aValid = fabs(aDot - 1.0) <= tolerance * tolerance;
1142     if (!aValid)
1143       theError.arg(anEdge->isClosed() ? "Error: Ellipse is orthogonal to the sketch plane."
1144                                       : "Error: Elliptic Arc is orthogonal to the sketch plane.");
1145     return aValid;
1146   }
1147
1148   theError = "Error: Selected object is not supported for projection.";
1149   return false;
1150 }
1151
1152
1153 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1154                                    const std::set<FeaturePtr>& theSet2)
1155 {
1156   std::set<FeaturePtr> aCommon;
1157   if (theSet1.empty() || theSet2.empty())
1158     return aCommon;
1159
1160   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1161   for (; anIt2 != theSet2.end(); ++anIt2)
1162     if (theSet1.find(*anIt2) != theSet1.end())
1163       aCommon.insert(*anIt2);
1164   return aCommon;
1165 }
1166
1167 bool SketchPlugin_DifferentReferenceValidator::isValid(
1168     const AttributePtr& theAttribute,
1169     const std::list<std::string>& theArguments,
1170     Events_InfoMessage& theError) const
1171 {
1172   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1173
1174   int aNbFeaturesReferred = 0;
1175   int aNbAttributesReferred = 0;
1176   std::set<FeaturePtr> aCommonReferredFeatures;
1177
1178   // find all features referred by attributes listed in theArguments
1179   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1180   for (; anArgIt != theArguments.end(); ++anArgIt) {
1181     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1182     if (!aRefAttr)
1183       continue;
1184
1185     std::set<FeaturePtr> aCoincidentFeatures;
1186     if (aRefAttr->isObject()) {
1187       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1188       if (aFeature) {
1189         aCoincidentFeatures.insert(aFeature);
1190         aNbFeaturesReferred += 1;
1191       }
1192     } else {
1193       AttributePoint2DPtr aPoint =
1194           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1195       if (aPoint) {
1196         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1197         aNbAttributesReferred += 1;
1198       }
1199     }
1200
1201     if (aCommonReferredFeatures.empty())
1202       aCommonReferredFeatures = aCoincidentFeatures;
1203     else
1204       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1205
1206     if (aCommonReferredFeatures.empty())
1207       return true;
1208   }
1209
1210   bool isOk = aNbFeaturesReferred < 1;
1211   if (aNbFeaturesReferred == 1) {
1212     if (aCommonReferredFeatures.size() == 1) {
1213       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1214       isOk = aNbAttributesReferred <= 1 ||
1215              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1216              aFeature->getKind() == SketchPlugin_Arc::ID();
1217     } else
1218       isOk = false;
1219   }
1220
1221   if (!isOk)
1222     theError = "Attributes are referred to the same feature";
1223   return isOk;
1224 }
1225
1226 bool SketchPlugin_DifferentPointReferenceValidator::isValid(
1227     const AttributePtr& theAttribute,
1228     const std::list<std::string>& theArguments,
1229     Events_InfoMessage& theError) const
1230 {
1231   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1232   std::set<AttributePoint2DPtr> aReferredCoincidentPoints;
1233
1234   // find all points referred by attributes listed in theArguments
1235   bool hasRefsToPoints = false;
1236   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1237   for (; anArgIt != theArguments.end(); ++anArgIt) {
1238     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1239     if (!aRefAttr)
1240       continue;
1241
1242     if (!aRefAttr->isObject()) {
1243       AttributePoint2DPtr aPoint =
1244           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1245       if (aReferredCoincidentPoints.empty())
1246         aReferredCoincidentPoints = SketchPlugin_Tools::findPointsCoincidentToPoint(aPoint);
1247       else if (aReferredCoincidentPoints.find(aPoint) == aReferredCoincidentPoints.end())
1248         return true; // non-coincident point has been found
1249       else
1250         hasRefsToPoints = true;
1251     }
1252   }
1253
1254   if (hasRefsToPoints)
1255     theError = "Attributes are referred to the same point";
1256   return !hasRefsToPoints;
1257 }
1258
1259 bool SketchPlugin_CirclePassedPointValidator::isValid(
1260     const AttributePtr& theAttribute,
1261     const std::list<std::string>&,
1262     Events_InfoMessage& theError) const
1263 {
1264   static const std::string aErrorMessage(
1265       "Passed point refers to the same feature as a center point");
1266
1267   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1268
1269   AttributeRefAttrPtr aCenterRef =
1270       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1271   AttributeRefAttrPtr aPassedRef =
1272       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1273
1274   if (!aPassedRef->isObject())
1275     return true;
1276
1277   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1278   if (!aPassedFeature)
1279     return true;
1280
1281   if (aCenterRef->isObject()) {
1282     if (aCenterRef->object() == aPassedRef->object()) {
1283       theError = aErrorMessage;
1284       return false;
1285     }
1286   } else {
1287     AttributePoint2DPtr aCenterPoint =
1288         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1289     if (aCenterPoint) {
1290       std::set<FeaturePtr> aCoincidentFeatures =
1291           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1292       // check one of coincident features is a feature referred by passed point
1293       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1294       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1295         if (*anIt == aPassedFeature) {
1296           theError = aErrorMessage;
1297           return false;
1298         }
1299     }
1300   }
1301   return true;
1302 }
1303
1304 bool SketchPlugin_ThirdPointValidator::isValid(
1305     const AttributePtr& theAttribute,
1306     const std::list<std::string>& theArguments,
1307     Events_InfoMessage& theError) const
1308 {
1309   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1310   return arePointsNotOnLine(anOwner, theError) &&
1311          arePointsNotSeparated(anOwner, theArguments, theError);
1312 }
1313
1314 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1315                                               const std::string& thePointAttrName,
1316                                               const std::string& theRefPointAttrName)
1317 {
1318   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1319       theMacroCircle->attribute(thePointAttrName));
1320   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1321
1322   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1323   if (aRefAttr) {
1324     if (aRefAttr->isObject()) {
1325       // project a point onto selected feature
1326       std::shared_ptr<SketchPlugin_Feature> aFeature =
1327           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1328           ModelAPI_Feature::feature(aRefAttr->object()));
1329       if (aFeature) {
1330         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1331         std::shared_ptr<GeomAPI_Edge> anEdge =
1332             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1333         if (anEdge) {
1334           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1335           if (anEdge->isLine())
1336             aPoint3D = anEdge->line()->project(aPoint3D);
1337           else if (anEdge->isCircle())
1338             aPoint3D = anEdge->circle()->project(aPoint3D);
1339           if(aPoint3D)
1340             aPoint = aSketch->to2D(aPoint3D);
1341         }
1342       }
1343     } else {
1344       AttributePoint2DPtr anOtherPoint =
1345           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1346       if (anOtherPoint)
1347         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1348     }
1349   }
1350
1351   return aPoint;
1352 }
1353
1354 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1355                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1356 {
1357   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1358     thePoints[0] = toPoint(theMacroFeature,
1359           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1360           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1361     thePoints[1] = toPoint(theMacroFeature,
1362           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1363           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1364     thePoints[2] = toPoint(theMacroFeature,
1365           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1366           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1367   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1368     thePoints[0] = toPoint(theMacroFeature,
1369           SketchPlugin_MacroArc::START_POINT_2_ID(),
1370           SketchPlugin_MacroArc::START_POINT_REF_ID());
1371     thePoints[1] = toPoint(theMacroFeature,
1372           SketchPlugin_MacroArc::END_POINT_2_ID(),
1373           SketchPlugin_MacroArc::END_POINT_REF_ID());
1374     thePoints[2] = toPoint(theMacroFeature,
1375           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1376           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1377   }
1378 }
1379
1380 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1381                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1382                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1383 {
1384   static const double aTolerance = 1.e-7;
1385   if (thePoint1->distance(thePoint2) < aTolerance ||
1386       thePoint1->distance(thePoint3) < aTolerance)
1387     return true;
1388
1389   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1390                                                             thePoint2->y() - thePoint1->y()));
1391   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1392                                                             thePoint3->y() - thePoint1->y()));
1393   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1394 }
1395
1396 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1397                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1398                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1399 {
1400   static const double aTolerance = 1.e-7;
1401   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1402   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1403
1404   std::shared_ptr<GeomAPI_XYZ> aVec1 = thePoint1->xyz()->decreased(aLineLoc);
1405   // the first point is on the line
1406   if (aVec1->squareModulus() < aTolerance * aTolerance)
1407     return false;
1408   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(aVec1));
1409   std::shared_ptr<GeomAPI_XYZ> aVec2 = thePoint2->xyz()->decreased(aLineLoc);
1410   // the second point is on the line
1411   if (aVec2->squareModulus() < aTolerance * aTolerance)
1412     return false;
1413   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(aVec2));
1414
1415   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1416 }
1417
1418 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1419                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1420                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1421 {
1422   static const double aTolerance = 1.e-7;
1423   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1424   double aDistP1C = thePoint1->distance(aCenter);
1425   double aDistP2C = thePoint2->distance(aCenter);
1426   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1427 }
1428
1429 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1430     const FeaturePtr& theMacroFeature,
1431     Events_InfoMessage& theError) const
1432 {
1433   static const std::string aErrorPointsOnLine(
1434       "Selected points are on the same line");
1435
1436   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1437   threePointsOfFeature(theMacroFeature, aPoints);
1438
1439   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1440     theError = aErrorPointsOnLine;
1441     return false;
1442   }
1443   return true;
1444 }
1445
1446 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1447     const FeaturePtr& theMacroFeature,
1448     const std::list<std::string>& theArguments,
1449     Events_InfoMessage& theError) const
1450 {
1451   static const std::string aErrorPointsApart(
1452       "Selected entity is lying between first two points");
1453
1454   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1455   FeaturePtr aRefByThird;
1456   if (aThirdPointRef->isObject())
1457     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1458   if (!aRefByThird)
1459     return true;
1460
1461   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1462   threePointsOfFeature(theMacroFeature, aPoints);
1463
1464   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1465       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1466   if (!aThirdShape)
1467     return true;
1468
1469   SketchPlugin_Sketch* aSketch =
1470       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1471   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1472   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1473
1474   bool isOk = true;
1475   if (aThirdShape->isLine())
1476     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1477   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1478     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1479
1480   if (!isOk)
1481     theError = aErrorPointsApart;
1482   return isOk;
1483 }
1484
1485 bool SketchPlugin_ArcEndPointValidator::isValid(
1486     const AttributePtr& theAttribute,
1487     const std::list<std::string>& theArguments,
1488     Events_InfoMessage& theError) const
1489 {
1490   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1491   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1492
1493   if(!anEndPointRef.get()) {
1494     return true;
1495   }
1496
1497   ObjectPtr anObject = anEndPointRef->object();
1498   AttributePtr anAttr = anEndPointRef->attr();
1499   if(!anObject.get() && !anAttr.get()) {
1500     return true;
1501   }
1502
1503   if(anEndPointRef->attr().get()) {
1504     return false;
1505   }
1506
1507   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1508   if(aResult.get()) {
1509     GeomShapePtr aShape = aResult->shape();
1510     if(aShape.get() && aShape->isVertex()) {
1511       return false;
1512     }
1513   }
1514
1515   aFeature = ModelAPI_Feature::feature(anObject);
1516   if(aFeature.get()) {
1517     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1518       return false;
1519     }
1520   }
1521
1522   return true;
1523 }
1524
1525 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1526 {
1527   if(!theShape.get()) {
1528     return theShape;
1529   }
1530
1531   if(!theShape->isEdge()) {
1532     return theShape;
1533   }
1534
1535   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1536
1537   if(!anEdge.get()) {
1538     return theShape;
1539   }
1540
1541   if(anEdge->isLine()) {
1542     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1543     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1544     return aShape;
1545   }
1546
1547   if(anEdge->isCircle() || anEdge->isArc()) {
1548     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1549     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1550     return aShape;
1551   }
1552
1553   return theShape;
1554 }
1555
1556 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1557     const AttributePtr& theAttribute,
1558     const std::list<std::string>& theArguments,
1559     Events_InfoMessage& theError) const
1560 {
1561   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1562       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1563   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1564
1565   if(!anEndPointRef.get()) {
1566     return true;
1567   }
1568
1569   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1570
1571   if(!anArcShape.get() || anArcShape->isNull()) {
1572     return true;
1573   }
1574
1575   ObjectPtr anObject = anEndPointRef->object();
1576   AttributePtr anAttr = anEndPointRef->attr();
1577   if(!anObject.get() && !anAttr.get()) {
1578     return true;
1579   }
1580
1581   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1582   if(aResult.get()) {
1583     GeomShapePtr aShape = aResult->shape();
1584     if (!aShape->isEdge())
1585       return true;
1586     aShape = toInfiniteEdge(aShape);
1587     if(aShape.get() && !aShape->isNull()) {
1588       if(anArcShape->isIntersect(aShape)) {
1589         return true;
1590       }
1591     }
1592   }
1593
1594   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1595   if(aSelectedFeature.get()) {
1596     std::list<ResultPtr> aResults = aSelectedFeature->results();
1597     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1598         anIt != aResults.cend();
1599         ++anIt)
1600     {
1601       GeomShapePtr aShape = (*anIt)->shape();
1602       if (!aShape->isEdge())
1603         return true;
1604       aShape = toInfiniteEdge(aShape);
1605       if(aShape.get() && !aShape->isNull()) {
1606         if(anArcShape->isIntersect(aShape)) {
1607           return true;
1608         }
1609       }
1610     }
1611   }
1612
1613   return false;
1614 }
1615
1616 bool SketchPlugin_HasNoConstraint::isValid(const AttributePtr& theAttribute,
1617                                            const std::list<std::string>& theArguments,
1618                                            Events_InfoMessage& theError) const
1619 {
1620   std::set<std::string> aFeatureKinds;
1621   for (std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1622        anArgIt != theArguments.end(); anArgIt++) {
1623     aFeatureKinds.insert(*anArgIt);
1624   }
1625
1626   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1627     theError = "The attribute with the %1 type is not processed";
1628     theError.arg(theAttribute->attributeType());
1629     return false;
1630   }
1631
1632   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
1633                                                                       (theAttribute);
1634   bool isObject = aRefAttr->isObject();
1635   if (!isObject) {
1636     theError = "It uses an empty object";
1637     return false;
1638   }
1639   ObjectPtr anObject = aRefAttr->object();
1640   FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
1641   if (!aFeature.get()) {
1642     theError = "The feature of the checked attribute is empty";
1643     return false;
1644   }
1645
1646   FeaturePtr aCurrentFeature = ModelAPI_Feature::feature(aRefAttr->owner());
1647
1648   std::set<AttributePtr> aRefsList = anObject->data()->refsToMe();
1649   std::set<AttributePtr>::const_iterator anIt = aRefsList.begin();
1650   for (; anIt != aRefsList.end(); anIt++) {
1651     FeaturePtr aRefFeature = ModelAPI_Feature::feature((*anIt)->owner());
1652     if (aRefFeature.get() && aCurrentFeature != aRefFeature &&
1653         aFeatureKinds.find(aRefFeature->getKind()) != aFeatureKinds.end())
1654       return false; // constraint is found, that means that the check is not valid
1655   }
1656   return true;
1657 }
1658
1659 bool SketchPlugin_ReplicationReferenceValidator::isValid(
1660     const AttributePtr& theAttribute,
1661     const std::list<std::string>& theArguments,
1662     Events_InfoMessage& theError) const
1663 {
1664   AttributeRefAttrPtr aRefAttr =
1665       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1666   if (!aRefAttr)
1667   {
1668     theError = "Incorrect attribute";
1669     return false;
1670   }
1671
1672   ObjectPtr anOwner;
1673   if (aRefAttr->isObject())
1674     anOwner = aRefAttr->object();
1675   else
1676   {
1677     AttributePtr anAttr = aRefAttr->attr();
1678     anOwner = anAttr->owner();
1679   }
1680   FeaturePtr anAttrOwnerFeature = ModelAPI_Feature::feature(anOwner);
1681   if (!anAttrOwnerFeature)
1682     return true;
1683   AttributeBooleanPtr aCopyAttr = anAttrOwnerFeature->boolean(SketchPlugin_SketchEntity::COPY_ID());
1684   if (!aCopyAttr || !aCopyAttr->value())
1685     return true; // feature is not a copy, thus valid
1686
1687   // check the copy feature is already referred by the "Multi" feature
1688   FeaturePtr aMultiFeature = ModelAPI_Feature::feature(theAttribute->owner());
1689   AttributeRefListPtr aRefList = aMultiFeature->reflist(theArguments.front());
1690   for (int i = 0; i < aRefList->size(); ++i)
1691   {
1692     FeaturePtr aRefOwner = ModelAPI_Feature::feature(aRefList->object(i));
1693     if (aRefOwner == anAttrOwnerFeature)
1694     {
1695       theError = "Attribute refers to the object generated by this feature";
1696       return false;
1697     }
1698   }
1699
1700   return true;
1701 }
1702
1703 bool SketchPlugin_SketchFeatureValidator::isValid(const AttributePtr& theAttribute,
1704                                                   const std::list<std::string>& theArguments,
1705                                                   Events_InfoMessage& theError) const
1706 {
1707   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1708     theError = "The attribute with the %1 type is not processed";
1709     theError.arg(theAttribute->attributeType());
1710     return false;
1711   }
1712
1713   // check the attribute refers to a sketch feature
1714   AttributeRefAttrPtr aRefAttr =
1715       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1716   bool isSketchFeature = aRefAttr->isObject();
1717   if (isSketchFeature) {
1718     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1719     isSketchFeature = aFeature.get() != NULL;
1720     if (isSketchFeature) {
1721       std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1722           std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
1723       isSketchFeature = aSketchFeature.get() != NULL;
1724     }
1725   }
1726
1727   if (isSketchFeature)
1728     return true;
1729
1730   theError = "The object selected is not a sketch feature";
1731   return false;
1732 }
1733
1734 bool SketchPlugin_MultiRotationAngleValidator::isValid(const AttributePtr& theAttribute,
1735                                                        const std::list<std::string>& theArguments,
1736                                                        Events_InfoMessage& theError) const
1737 {
1738   if (theAttribute->attributeType() != ModelAPI_AttributeDouble::typeId()) {
1739     theError = "The attribute with the %1 type is not processed";
1740     theError.arg(theAttribute->attributeType());
1741     return false;
1742   }
1743
1744   AttributeDoublePtr anAngleAttr =
1745     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
1746
1747   FeaturePtr aMultiRotation = ModelAPI_Feature::feature(theAttribute->owner());
1748   AttributeStringPtr anAngleType =
1749       aMultiRotation->string(SketchPlugin_MultiRotation::ANGLE_TYPE());
1750   AttributeIntegerPtr aNbCopies =
1751       aMultiRotation->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID());
1752
1753   if (anAngleType->value() != "FullAngle")
1754   {
1755     double aFullAngleValue = anAngleAttr->value() * (aNbCopies->value() - 1);
1756     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 359.9999999)
1757     {
1758       theError = "Rotation single angle should produce full angle less than 360 degree";
1759       return false;
1760     }
1761   }
1762   else
1763   {
1764     double aFullAngleValue = anAngleAttr->value();
1765     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 360.0000001)
1766     {
1767       theError = "Rotation full angle should be in range [0, 360]";
1768       return false;
1769     }
1770   }
1771
1772   return true;
1773 }