src/SketchPlugin/SketchPlugin_Validators.cpp

   1 // Copyright (C) 2014-2017  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 #include "SketchPlugin_Validators.h"
  22
  23 #include "SketchPlugin_Arc.h"
  24 #include "SketchPlugin_Circle.h"
  25 #include "SketchPlugin_ConstraintCoincidence.h"
  26 #include "SketchPlugin_ConstraintDistance.h"
  27 #include "SketchPlugin_ConstraintRigid.h"
  28 #include "SketchPlugin_ConstraintTangent.h"
  29 #include "SketchPlugin_Fillet.h"
  30 #include "SketchPlugin_Line.h"
  31 #include "SketchPlugin_MacroArc.h"
  32 #include "SketchPlugin_MacroCircle.h"
  33 #include "SketchPlugin_MultiRotation.h"
  34 #include "SketchPlugin_Point.h"
  35 #include "SketchPlugin_Sketch.h"
  36 #include "SketchPlugin_Trim.h"
  37 #include "SketchPlugin_Tools.h"
  38
  39 #include "SketcherPrs_Tools.h"
  40
  41 #include <Events_InfoMessage.h>
  42
  43 #include <ModelAPI_Data.h>
  44 #include <ModelAPI_Validator.h>
  45 #include <ModelAPI_AttributeDouble.h>
  46 #include <ModelAPI_AttributeInteger.h>
  47 #include <ModelAPI_AttributeRefAttr.h>
  48 #include <ModelAPI_AttributeRefAttrList.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_Lin.h>
  65 #include <GeomAPI_Edge.h>
  66 #include <GeomAPI_Vertex.h>
  67 #include <GeomDataAPI_Point2D.h>
  68
  69 #include <algorithm>
  70 #include <cmath>
  71
  72 const double tolerance = 1.e-7;
  73
  74 bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute,
  75                                                  const std::list<std::string>& theArguments,
  76                                                  Events_InfoMessage& theError) const
  77 {
  78   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
  79     theError = "The attribute with the %1 type is not processed";
  80     theError.arg(theAttribute->attributeType());
  81     return false;
  82   }
  83
  84   // there is a check whether the feature contains a point and a linear edge or two point values
  85   std::string aParamA = theArguments.front();
  86   SessionPtr aMgr = ModelAPI_Session::get();
  87   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
  88
  89   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
  90                                                                       (theAttribute);
  91   bool isObject = aRefAttr->isObject();
  92   if (!isObject) {
  93     // an attribute is a point. A point value is valid always for the distance
  94     return true;
  95   } else {
  96     // 1. check whether the references object is a linear
  97     ObjectPtr anObject = aRefAttr->object();
  98
  99     const ModelAPI_AttributeValidator* aShapeValidator =
 100       dynamic_cast<const ModelAPI_AttributeValidator*>(
 101       aFactory->validator("GeomValidators_ShapeType"));
 102     std::list<std::string> anArguments;
 103     anArguments.push_back("circle");
 104     Events_InfoMessage aCircleError;
 105     bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
 106     // the circle line is not a valid case
 107     if (aShapeValid) {
 108       theError = "Circle can not be used in distance constraint";
 109       return false;
 110     }
 111
 112     anArguments.clear();
 113     anArguments.push_back("line");
 114     Events_InfoMessage aLineError;
 115     aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
 116     // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
 117     if (aShapeValid) {
 118       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 119       // If it is a line then we have to check that first attribute id not a line
 120       std::shared_ptr<SketchPlugin_Feature> aSFeature =
 121         std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 122       SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 123       std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
 124       std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
 125         aFeature->data(), aParamA, aPlane);
 126       if (!aPoint.get()) {
 127         theError = "One of parameters of distance constraint should be a point";
 128         return false;
 129       }
 130     }
 131   }
 132   return true;
 133 }
 134
 135 bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute,
 136                                                 const std::list<std::string>& theArguments,
 137                                                 Events_InfoMessage& theError) const
 138 {
 139   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 140     theError = "The attribute with the %1 type is not processed";
 141     theError.arg(theAttribute->attributeType());
 142     return false;
 143   }
 144
 145   // there is a check whether the feature contains a point and a linear edge or two point values
 146   std::string aParamA = theArguments.front();
 147   SessionPtr aMgr = ModelAPI_Session::get();
 148   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 149
 150   FeaturePtr anAttributeFeature =
 151     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 152   AttributeRefAttrPtr aRefAttr =
 153     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 154
 155   bool isObject = aRefAttr->isObject();
 156   ObjectPtr anObject = aRefAttr->object();
 157   if (isObject && anObject.get()) {
 158     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 159
 160     AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 161     ObjectPtr aOtherObject = aOtherAttr->object();
 162     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 163     if (!aOtherFea)
 164       return true;
 165
 166     if (aRefFea->getKind() == SketchPlugin_Line::ID()) {
 167       if (aOtherFea->getKind() != SketchPlugin_Arc::ID() &&
 168           aOtherFea->getKind() != SketchPlugin_Circle::ID()) {
 169         theError = "It refers to a %1, but %2 is neither an %3 nor %4";
 170         theError.arg(SketchPlugin_Line::ID()).arg(aParamA)
 171             .arg(SketchPlugin_Arc::ID()).arg(SketchPlugin_Circle::ID());
 172         return false;
 173       }
 174     }
 175     else if (aRefFea->getKind() == SketchPlugin_Arc::ID() ||
 176              aRefFea->getKind() == SketchPlugin_Circle::ID()) {
 177       if (aOtherFea->getKind() != SketchPlugin_Line::ID() &&
 178           aOtherFea->getKind() != SketchPlugin_Arc::ID() &&
 179           aOtherFea->getKind() != SketchPlugin_Circle::ID()) {
 180         theError = "It refers to an %1, but %2 is not a %3 or an %4 or a %5";
 181         theError.arg(SketchPlugin_Arc::ID()).arg(aParamA)
 182             .arg(SketchPlugin_Line::ID()).arg(SketchPlugin_Arc::ID())
 183             .arg(SketchPlugin_Circle::ID());
 184         return false;
 185       }
 186     }
 187     else {
 188       theError = "It refers to %1, but should refer to %2 or %3 or %4";
 189       theError.arg(aRefFea->getKind()).arg(SketchPlugin_Line::ID())
 190           .arg(SketchPlugin_Arc::ID()).arg(SketchPlugin_Circle::ID());
 191       return false;
 192     }
 193     return true;
 194   }
 195   else {
 196     theError = "It uses an empty object";
 197     return false;
 198   }
 199
 200   return true;
 201 }
 202
 203 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 204                                              const std::list<std::string>& theArguments,
 205                                              Events_InfoMessage& theError) const
 206 {
 207   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 208     theError = "The attribute with the %1 type is not processed";
 209     theError.arg(theAttribute->attributeType());
 210     return false;
 211   }
 212
 213   std::shared_ptr<SketchPlugin_Feature> aFeature =
 214       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 215   if (!aFeature)
 216     return true;
 217
 218   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 219
 220   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 221   int aNbFeatures = aSketch->numberOfSubs();
 222   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 223     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 224     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 225       continue;
 226     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 227         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 228     if (aRefAttr->isObject()) {
 229       if (aRefAttr->object() == aRAttr->object()) {
 230         ObjectPtr anObject = aRefAttr->object();
 231         std::string aName = anObject.get() ? anObject->data()->name() : "";
 232         theError = "The object %1 has been already fixed.";
 233         theError.arg(aName);
 234         return false;
 235       }
 236     }
 237     else if (aRefAttr->attr() == aRAttr->attr()) {
 238       AttributePtr anAttribute = aRefAttr->attr();
 239       std::string aName = anAttribute.get() ? anAttribute->id() : "";
 240       theError = "The attribute %1 has been already fixed.";
 241       theError.arg(aName);
 242       return false;
 243     }
 244   }
 245   return true;
 246 }
 247
 248 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 249                                               const std::list<std::string>& theArguments,
 250                                               Events_InfoMessage& theError) const
 251 {
 252   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 253     theError = "The attribute with the %1 type is not processed";
 254     theError.arg(theAttribute->attributeType());
 255     return false;
 256   }
 257
 258   std::string aParamA = theArguments.front();
 259   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 260   AttributeRefAttrPtr aRefAttr[2];
 261   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 262   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 263
 264   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 265     theError = "Attributes can not be used in equal constraint";
 266     return false;
 267   }
 268
 269   std::string aType[2];
 270   std::list<std::string> anArguments;
 271   for (int i = 0; i < 2; i++) {
 272     ObjectPtr anObject = aRefAttr[i]->object();
 273     if (!anObject.get()) {
 274       theError = "An empty object is used.";
 275       return false;
 276     }
 277
 278     aFeature = ModelAPI_Feature::feature(anObject);
 279     if (!aFeature.get()) {
 280       theError = "An empty feature is used.";
 281       return false;
 282     }
 283
 284     aType[i] = aFeature->getKind();
 285     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 286         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 287         aFeature->getKind() != SketchPlugin_Arc::ID()) {
 288       theError = "The %1 feature kind of attribute is wrong. It should be %2 or %3 or %4";
 289       theError.arg(aFeature->getKind()).arg(SketchPlugin_Line::ID())
 290           .arg(SketchPlugin_Circle::ID()).arg(SketchPlugin_Arc::ID());
 291       // wrong type of attribute
 292       return false;
 293     }
 294   }
 295
 296   if ((aType[0] == SketchPlugin_Line::ID() || aType[1] == SketchPlugin_Line::ID()) &&
 297       aType[0] != aType[1]) {
 298     theError = "Feature with kinds %1 and %2 can not be equal.";
 299     theError.arg(aType[0]).arg(aType[1]);
 300     return false;
 301   }
 302   return true;
 303 }
 304
 305 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 306                                                const std::list<std::string>& theArguments,
 307                                                Events_InfoMessage& theError) const
 308 {
 309   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 310     theError = "The attribute with the %1 type is not processed";
 311     theError.arg(theAttribute->attributeType());
 312     return false;
 313   }
 314
 315   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 316   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 317
 318   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 319       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 320   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 321
 322   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 323     ObjectPtr aSelObject = aSelAttr->object(anInd);
 324     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 325     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 326     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 327       if (aSelObject == *aMirIter) {
 328         theError = "The object %1 is a result of mirror";
 329         theError.arg(aName);
 330         return false;
 331       }
 332   }
 333   return true;
 334 }
 335
 336 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 337                                                     const std::list<std::string>& theArguments,
 338                                                     Events_InfoMessage& theError) const
 339 {
 340   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 341     theError = "The attribute with the %1 type is not processed";
 342     theError.arg(theAttribute->attributeType());
 343     return false;
 344   }
 345
 346   // there is a check whether the feature contains a point and a linear edge or two point values
 347   std::string aParamA = theArguments.front();
 348   SessionPtr aMgr = ModelAPI_Session::get();
 349   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 350
 351   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 352   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 353   if (!aRefAttrA) {
 354     theError = "The %1 attribute should be %2";
 355     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 356     return false;
 357   }
 358
 359   AttributeRefAttrPtr aRefAttrB =
 360     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 361
 362   // first attribute is a point, it may coincide with any object
 363   if (!aRefAttrA->isObject())
 364     return true;
 365   else {
 366     ObjectPtr anObject = aRefAttrA->object();
 367     if (!anObject.get()) {
 368       theError = "%1 attribute has an empty object";
 369       theError.arg(aParamA);
 370       return false;
 371     }
 372     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 373     if (!aFeature.get()) {
 374       theError = "%1 attribute has an empty feature";
 375       theError.arg(aParamA);
 376       return false;
 377     }
 378
 379     if (aFeature->getKind() == SketchPlugin_Point::ID())
 380       return true;
 381   }
 382
 383   // second attribute is a point, it may coincide with any object
 384   if (!aRefAttrB->isObject())
 385     return true;
 386   else {
 387     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 388     if (!aFeature) {
 389       theError = "%1 attribute has an empty object";
 390       theError.arg(theAttribute->id());
 391       return false;
 392     }
 393     if (aFeature->getKind() == SketchPlugin_Point::ID())
 394       return true;
 395   }
 396   theError = "There is no an attribute filled by a point";
 397   return false;
 398 }
 399
 400
 401 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 402                                          const std::list<std::string>& theArguments,
 403                                          Events_InfoMessage& theError) const
 404 {
 405   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 406     theError = "The attribute with the %1 type is not processed";
 407     theError.arg(theAttribute->attributeType());
 408     return false;
 409   }
 410
 411   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 412   AttributeRefListPtr aSelAttr =
 413     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 414
 415   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 416       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 417   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 418       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 419   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 420   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 421
 422   std::list<ObjectPtr>::iterator anObjIter;
 423   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 424     ObjectPtr aSelObject = aSelAttr->object(anInd);
 425     anObjIter = anInitialObjects.begin();
 426     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 427       if (aSelObject == *anObjIter)
 428         break;
 429     if (anObjIter != anInitialObjects.end())
 430       continue;
 431     anObjIter = aCopiedObjects.begin();
 432     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 433       if (aSelObject == *anObjIter) {
 434         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 435         theError = "The object %1 is a result of copy";
 436         theError.arg(aName);
 437         return false;
 438       }
 439   }
 440   return true;
 441 }
 442
 443 bool SketchPlugin_SolverErrorValidator::isValid(
 444   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 445   const std::list<std::string>& theArguments,
 446   Events_InfoMessage& theError) const
 447 {
 448   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 449
 450   if (!aAttributeString->value().empty()) {
 451     theError = aAttributeString->value();
 452     return false;
 453   }
 454
 455   return true;
 456 }
 457
 458 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 459                                                         std::string theAttribute)
 460 {
 461   return true;
 462 }
 463
 464 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 465                                   const FeaturePtr theFeature)
 466 {
 467   for(std::set<AttributePtr>::const_iterator
 468       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 469     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 470     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 471     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 472       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 473         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 474       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 475         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 476       if(anAttrRefA.get()) {
 477         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 478         if(aResA.get()) {
 479           DocumentPtr aDoc = aResA->document();
 480           if(aDoc.get()) {
 481             FeaturePtr aFeatureA = aDoc->feature(aResA);
 482             if(aFeatureA.get() && aFeatureA == theFeature) {
 483               return true;
 484             }
 485           }
 486         }
 487       }
 488       if(anAttrRefB.get()) {
 489         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 490         if(aResB.get()) {
 491           DocumentPtr aDoc = aResB->document();
 492           if(aDoc.get()) {
 493             FeaturePtr aFeatureB = aDoc->feature(aResB);
 494             if(aFeatureB.get() && aFeatureB == theFeature) {
 495               return true;
 496             }
 497           }
 498         }
 499       }
 500     }
 501   }
 502   return false;
 503 }
 504
 505 static bool isPointPointCoincidence(const FeaturePtr& theCoincidence)
 506 {
 507   AttributeRefAttrPtr aRefAttr[2] = {
 508       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_A()),
 509       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_B())
 510   };
 511
 512   bool arePoints = true;
 513   for (int i = 0; i < 2 && arePoints; ++i) {
 514     if (aRefAttr[i]->isObject()) {
 515       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 516       arePoints = aFeature.get() && aFeature->getKind() == SketchPlugin_Point::ID();
 517     } else
 518       arePoints = aRefAttr[i]->attr().get() != NULL;
 519   }
 520   return arePoints;
 521 }
 522
 523 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 524                                                  const std::list<std::string>& theArguments,
 525                                                  Events_InfoMessage& theError) const
 526 {
 527   AttributeRefAttrPtr aPointRefAttr =
 528     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 529   if(!aPointRefAttr.get()) {
 530     theError = "Error: Point not selected.";
 531     return false;
 532   }
 533
 534   AttributePtr aPointAttribute = aPointRefAttr->attr();
 535   if (!aPointAttribute.get()) {
 536     theError = "Error: Bad point selected.";
 537     return false;
 538   }
 539   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 540     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 541
 542   // Obtain constraint coincidence for the fillet point.
 543   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 544   FeaturePtr aConstraintCoincidence;
 545   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 546       anIt != aRefsList.cend(); ++anIt) {
 547     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 548     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 549     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 550       if (!isPointPointCoincidence(aConstrFeature))
 551         continue;
 552
 553       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 554         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 555       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 556         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 557
 558       AttributePtr anAttrA = anAttrRefA->attr();
 559       if(aPointAttribute == anAttrA) {
 560         aConstraintCoincidence = aConstrFeature;
 561         break;
 562       }
 563
 564       AttributePtr anAttrB = anAttrRefB->attr();
 565       if(aPointAttribute == anAttrB) {
 566         aConstraintCoincidence = aConstrFeature;
 567         break;
 568       }
 569     }
 570   }
 571
 572   if(!aConstraintCoincidence.get()) {
 573     theError = "Error: one of the selected point does not have coicidence.";
 574     return false;
 575   }
 576
 577   // Get coincides from constraint.
 578   std::set<FeaturePtr> aCoinsides;
 579   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 580                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 581                                         aCoinsides,
 582                                         true);
 583   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 584                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 585                                         aCoinsides,
 586                                         true);
 587
 588   // Remove points and external lines from set of coincides.
 589   std::set<FeaturePtr> aNewSetOfCoincides;
 590   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 591       anIt != aCoinsides.end(); ++anIt) {
 592     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 593       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 594     if(aSketchEntity.get() && (aSketchEntity->isCopy() || aSketchEntity->isExternal())) {
 595       continue;
 596     }
 597     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 598         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 599           continue;
 600     }
 601     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 602       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 603       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 604         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 605       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 606       if(aDistSelectedArcCenter < tolerance) {
 607         continue;
 608       }
 609     }
 610     aNewSetOfCoincides.insert(*anIt);
 611   }
 612   aCoinsides = aNewSetOfCoincides;
 613
 614   // If we still have more than two coincides remove auxilary entities from set of coincides.
 615   if(aCoinsides.size() > 2) {
 616     aNewSetOfCoincides.clear();
 617     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 618         anIt != aCoinsides.end(); ++anIt) {
 619       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 620         aNewSetOfCoincides.insert(*anIt);
 621       }
 622     }
 623     aCoinsides = aNewSetOfCoincides;
 624   }
 625
 626   if(aCoinsides.size() != 2) {
 627     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 628     return false;
 629   }
 630
 631   // Check that selected edges don't have tangent constraint.
 632   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 633   FeaturePtr aFirstFeature = *anIt++;
 634   FeaturePtr aSecondFeature = *anIt;
 635   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 636   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 637     theError = "Error: Edges in selected point has tangent constraint.";
 638     return false;
 639   }
 640
 641   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 642   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 643       aResIt != aFirstResults.end(); ++aResIt) {
 644     ResultPtr aRes = *aResIt;
 645     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 646     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 647       theError = "Error: Edges in selected point has tangent constraint.";
 648       return false;
 649     }
 650   }
 651
 652   // Check the features are not tangent
 653   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 654   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 655   if (!aFirstShape || !aFirstShape->isEdge() ||
 656       !aSecondShape || !aSecondShape->isEdge()) {
 657     theError = "Error: At least on of the features is not an edge";
 658     return false;
 659   }
 660
 661   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 662   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 663
 664   static const double TOL = 1.e-7;
 665   if (anEdge1->isLine() && anEdge2->isLine()) {
 666     // Check that lines not collinear
 667     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 668     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 669     double aCross = aDir1->cross(aDir2)->squareModulus();
 670     if (aCross < TOL * TOL)
 671       return false;
 672   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 673     // check the circles are not tangent
 674     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 675     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 676     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 677     double aRadSum = aCirc1->radius() + aCirc2->radius();
 678     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 679     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 680       return false;
 681   } else {
 682     // check whether line and arc are tangent
 683     std::shared_ptr<GeomAPI_Circ> aCirc;
 684     std::shared_ptr<GeomAPI_Lin> aLine;
 685     if (anEdge1->isLine()) {
 686       aLine = anEdge1->line();
 687       aCirc = anEdge2->circle();
 688     } else {
 689       aCirc = anEdge1->circle();
 690       aLine = anEdge2->line();
 691     }
 692
 693     double aDistCL = aLine->distance(aCirc->center());
 694     if (fabs(aDistCL - aCirc->radius()) < TOL)
 695       return false;
 696   }
 697
 698   return true;
 699 }
 700
 701 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 702                                                     const std::list<std::string>& theArguments,
 703                                                     Events_InfoMessage& theError) const
 704 {
 705   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 706     theError = "The attribute with the %1 type is not processed";
 707     theError.arg(theAttribute->attributeType());
 708     return false;
 709   }
 710
 711   // there is a check whether the feature contains a point and a linear edge or two point values
 712   std::string aParamA = theArguments.front();
 713   SessionPtr aMgr = ModelAPI_Session::get();
 714   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 715
 716   FeaturePtr anAttributeFeature =
 717     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 718   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 719   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 720
 721   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 722   int aNbPoints = 0;
 723   int aNbLines = 0;
 724   for (int i = 0; i < 2; ++i) {
 725     if (!aRefAttrs[i]->isObject())
 726       ++aNbPoints;
 727     else {
 728       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 729       if (!aFeature) {
 730         if (aNbPoints + aNbLines != 0)
 731           return true;
 732         else continue;
 733       }
 734
 735       if (aFeature->getKind() == SketchPlugin_Point::ID())
 736         ++aNbPoints;
 737       else if (aFeature->getKind() == SketchPlugin_Line::ID())
 738         ++aNbLines;
 739     }
 740   }
 741
 742   if (aNbPoints != 1 || aNbLines != 1) {
 743     theError = "Middle point constraint allows points and lines only";
 744     return false;
 745   }
 746   return true;
 747 }
 748
 749 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 750                                                     const std::list<std::string>& /*theArguments*/,
 751                                                     Events_InfoMessage& theError) const
 752 {
 753   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 754     theError = "The attribute with the %1 type is not processed";
 755     theError.arg(theAttribute->attributeType());
 756     return false;
 757   }
 758   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 759   AttributePtr anAttr = aRefAttr->attr();
 760   if (!anAttr) {
 761     theError = "The attribute %1 should be a point";
 762     theError.arg(theAttribute->id());
 763     return false;
 764   }
 765
 766   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 767   const std::string& aFeatureType = anAttrFeature->getKind();
 768   if (aFeatureType == SketchPlugin_Arc::ID()) {
 769     // selected point should not be a center of arc
 770     const std::string& aPntId = anAttr->id();
 771     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 772       theError = "The attribute %1 is not supported";
 773       theError.arg(aPntId);
 774       return false;
 775     }
 776   }
 777   else if (aFeatureType == SketchPlugin_Line::ID()) {
 778     // selected point should be bound point of line
 779     const std::string& aPntId = anAttr->id();
 780     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 781       theError = "The attribute %1 is not supported";
 782       theError.arg(aPntId);
 783       return false;
 784     }
 785   }
 786   else {
 787     theError = "Unable to build tangent arc on %1";
 788     theError.arg(anAttrFeature->getKind());
 789     return false;
 790   }
 791
 792   return true;
 793 }
 794
 795 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 796                                                  const std::list<std::string>& theArguments,
 797                                                  Events_InfoMessage& theError) const
 798 {
 799   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 800     theError = "The attribute with the %1 type is not processed";
 801     theError.arg(theAttribute->attributeType());
 802     return false;
 803   }
 804   AttributeSelectionPtr anExternalAttr =
 805       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 806   std::shared_ptr<GeomAPI_Edge> anEdge;
 807   if (anExternalAttr && anExternalAttr->value() && anExternalAttr->value()->isEdge()) {
 808     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->value()));
 809   } else if(anExternalAttr->context() && anExternalAttr->context()->shape() &&
 810             anExternalAttr->context()->shape()->isEdge()) {
 811     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->context()->shape()));
 812   }
 813
 814   if (!anEdge) {
 815     theError = "The attribute %1 should be an edge";
 816     theError.arg(theAttribute->id());
 817     return false;
 818   }
 819
 820   // find a sketch
 821   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 822   std::set<AttributePtr> aRefs = anExternalAttr->owner()->data()->refsToMe();
 823   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 824   for (; anIt != aRefs.end(); ++anIt) {
 825     CompositeFeaturePtr aComp =
 826         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 827     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 828       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 829       break;
 830     }
 831   }
 832   if (!aSketch) {
 833     theError = "There is no sketch referring to the current feature";
 834     return false;
 835   }
 836
 837   // check the edge is intersected with sketch plane
 838   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 839
 840   std::list<GeomPointPtr> anIntersectionsPoints;
 841   anEdge->intersectWithPlane(aPlane, anIntersectionsPoints);
 842   if (anIntersectionsPoints.empty()) {
 843     theError = "The edge is not intersected with sketch plane";
 844     return false;
 845   }
 846   return true;
 847 }
 848
 849 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
 850                                           const std::list<std::string>& theArguments,
 851                                           Events_InfoMessage& theError) const
 852 {
 853   bool aValid = false;
 854
 855   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 856     theError = "The attribute with the %1 type is not processed";
 857     theError.arg(theAttribute->attributeType());
 858     return aValid;
 859   }
 860   AttributeReferencePtr aFeatureAttr =
 861             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 862
 863   ObjectPtr anAttrObject = aFeatureAttr->value();
 864   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
 865   if (!anAttrFeature)
 866     return aValid;
 867
 868   std::string aKind = anAttrFeature->getKind();
 869   if (aKind == SketchPlugin_Line::ID() ||
 870       aKind == SketchPlugin_Arc::ID() ||
 871       aKind == SketchPlugin_Circle::ID()) {
 872
 873     std::set<ResultPtr> anEdgeShapes;
 874     ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
 875     if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
 876       return aValid;
 877
 878     // coincidences to the feature
 879     std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
 880     ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
 881                         SketchPlugin_ConstraintCoincidence::ID(),
 882                         aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
 883
 884     GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
 885     std::shared_ptr<SketchPlugin_Feature> aSFeature =
 886                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
 887     SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 888
 889     std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
 890     std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
 891         aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 892     std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 893         aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
 894     std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 895         aData->attribute(SketchPlugin_Sketch::NORM_ID()));
 896     std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
 897
 898     typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
 899                      std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 900                                std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
 901     PointToRefsMap aPointsInfo;
 902
 903     ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
 904                                                 aX->dir(), aDirY, aPointsInfo);
 905     int aCoincidentToFeature = (int)aPointsInfo.size();
 906     if (aKind == SketchPlugin_Circle::ID())
 907       aValid = aCoincidentToFeature >= 2;
 908     else
 909       aValid = aCoincidentToFeature >= 1;
 910   }
 911
 912   return aValid;
 913 }
 914
 915 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
 916                                          const std::list<std::string>& theArguments,
 917                                          Events_InfoMessage& theError) const
 918 {
 919   bool aValid = false;
 920
 921   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 922     theError = "The attribute with the %1 type is not processed";
 923     theError.arg(theAttribute->attributeType());
 924     return aValid;
 925   }
 926   AttributeReferencePtr aBaseObjectAttr =
 927             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 928
 929   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
 930                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 931
 932   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 933   if (!aBaseObject) {
 934     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
 935     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
 936     aBaseObject = aBaseObjectAttr->value();
 937   }
 938
 939   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
 940   if (!aBaseFeature)
 941     return aValid;
 942
 943   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
 944                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
 945   if (!aSketchFeature.get() || aSketchFeature->isCopy())
 946     return aValid;
 947
 948   std::string aKind = aBaseFeature->getKind();
 949   if (aKind != SketchPlugin_Line::ID() &&
 950       aKind != SketchPlugin_Arc::ID() &&
 951       aKind != SketchPlugin_Circle::ID())
 952     return aValid;
 953
 954   // point on feature
 955   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 956                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
 957
 958   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
 959
 960   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
 961   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
 962                                                               anAttributePnt2d->y());
 963
 964   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
 965   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
 966            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 967                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
 968   SketchPlugin_Trim::fillObjectShapes(aBaseObject, aSketch->data()->owner(),
 969                                       aCashedShapes, anObjectToPoints);
 970   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
 971
 972   return aShapes.size() > 1;
 973 }
 974
 975 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
 976                                                const std::list<std::string>& theArguments,
 977                                                Events_InfoMessage& theError) const
 978 {
 979   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 980     theError = "The attribute with the %1 type is not processed";
 981     theError.arg(theAttribute->attributeType());
 982     return false;
 983   }
 984
 985   AttributeSelectionPtr aFeatureAttr =
 986       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 987   std::shared_ptr<GeomAPI_Edge> anEdge;
 988   std::shared_ptr<SketchPlugin_Feature> aSketchFeature;
 989   if (aFeatureAttr.get()) {
 990     GeomShapePtr aVal = aFeatureAttr->value();
 991     ResultPtr aRes = aFeatureAttr->context();
 992     if (aVal && aVal->isVertex())
 993       return true; // vertex is always could be projected
 994     if (aVal && aVal->isEdge()) {
 995       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
 996     } else if(aRes && aRes->shape()) {
 997       if (aRes->shape()->isVertex())
 998         return true; // vertex is always could be projected
 999       else if (aRes->shape()->isEdge())
1000         anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
1001     }
1002
1003     // try to convert result to sketch feature
1004     if (aRes) {
1005       aSketchFeature =
1006         std::dynamic_pointer_cast<SketchPlugin_Feature>(ModelAPI_Feature::feature(aRes));
1007     }
1008   }
1009   if (!anEdge) {
1010     theError = "The attribute %1 should be an edge or vertex";
1011     theError.arg(theAttribute->id());
1012     return false;
1013   }
1014
1015   // find a sketch
1016   std::shared_ptr<SketchPlugin_Sketch> aSketch;
1017   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
1018   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
1019   for (; anIt != aRefs.end(); ++anIt) {
1020     CompositeFeaturePtr aComp =
1021         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
1022     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
1023       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
1024       break;
1025     }
1026   }
1027   if (!aSketch) {
1028     theError = "There is no sketch referring to the current feature";
1029     return false;
1030   }
1031   if (aSketchFeature && aSketch.get() == aSketchFeature->sketch()) {
1032     theError = "Unable to project feature from the same sketch";
1033     return false;
1034   }
1035
1036   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1037   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
1038   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
1039
1040   if (anEdge->isLine()) {
1041     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1042     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
1043     double aDot = fabs(aNormal->dot(aLineDir));
1044     bool aValid = fabs(aDot - 1.0) >= tolerance * tolerance;
1045     if (!aValid)
1046       theError = "Error: Edge is already in the sketch plane.";
1047     return aValid;
1048   }
1049   else if (anEdge->isCircle() || anEdge->isArc()) {
1050     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1051     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
1052     double aDot = fabs(aNormal->dot(aCircNormal));
1053     bool aValid = fabs(aDot - 1.0) < tolerance * tolerance;
1054     if (!aValid)
1055       theError.arg(anEdge->isCircle() ? "Error: Cirlce is already in the sketch plane."
1056                                       : "Error: Arc is already in the sketch plane.");
1057     return aValid;
1058   }
1059
1060   theError = "Error: Selected object is not line, circle or arc.";
1061   return false;
1062 }
1063
1064
1065 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1066                                    const std::set<FeaturePtr>& theSet2)
1067 {
1068   std::set<FeaturePtr> aCommon;
1069   if (theSet1.empty() || theSet2.empty())
1070     return aCommon;
1071
1072   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1073   for (; anIt2 != theSet2.end(); ++anIt2)
1074     if (theSet1.find(*anIt2) != theSet1.end())
1075       aCommon.insert(*anIt2);
1076   return aCommon;
1077 }
1078
1079 bool SketchPlugin_DifferentReferenceValidator::isValid(
1080     const AttributePtr& theAttribute,
1081     const std::list<std::string>& theArguments,
1082     Events_InfoMessage& theError) const
1083 {
1084   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1085
1086   int aNbFeaturesReferred = 0;
1087   int aNbAttributesReferred = 0;
1088   std::set<FeaturePtr> aCommonReferredFeatures;
1089
1090   // find all features referred by attributes listed in theArguments
1091   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1092   for (; anArgIt != theArguments.end(); ++anArgIt) {
1093     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1094     if (!aRefAttr)
1095       continue;
1096
1097     std::set<FeaturePtr> aCoincidentFeatures;
1098     if (aRefAttr->isObject()) {
1099       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1100       if (aFeature) {
1101         aCoincidentFeatures.insert(aFeature);
1102         aNbFeaturesReferred += 1;
1103       }
1104     } else {
1105       AttributePoint2DPtr aPoint =
1106           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1107       if (aPoint) {
1108         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1109         aNbAttributesReferred += 1;
1110       }
1111     }
1112
1113     if (aCommonReferredFeatures.empty())
1114       aCommonReferredFeatures = aCoincidentFeatures;
1115     else
1116       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1117
1118     if (aCommonReferredFeatures.empty())
1119       return true;
1120   }
1121
1122   bool isOk = aNbFeaturesReferred < 1;
1123   if (aNbFeaturesReferred == 1) {
1124     if (aCommonReferredFeatures.size() == 1) {
1125       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1126       isOk = aNbAttributesReferred <= 1 ||
1127              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1128              aFeature->getKind() == SketchPlugin_Arc::ID();
1129     } else
1130       isOk = false;
1131   }
1132
1133   if (!isOk)
1134     theError = "Attributes are referred to the same feature";
1135   return isOk;
1136 }
1137
1138 bool SketchPlugin_DifferentPointReferenceValidator::isValid(
1139     const AttributePtr& theAttribute,
1140     const std::list<std::string>& theArguments,
1141     Events_InfoMessage& theError) const
1142 {
1143   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1144   std::set<AttributePoint2DPtr> aReferredCoincidentPoints;
1145
1146   // find all points referred by attributes listed in theArguments
1147   bool hasRefsToPoints = false;
1148   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1149   for (; anArgIt != theArguments.end(); ++anArgIt) {
1150     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1151     if (!aRefAttr)
1152       continue;
1153
1154     if (!aRefAttr->isObject()) {
1155       AttributePoint2DPtr aPoint =
1156           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1157       if (aReferredCoincidentPoints.empty())
1158         aReferredCoincidentPoints = SketchPlugin_Tools::findPointsCoincidentToPoint(aPoint);
1159       else if (aReferredCoincidentPoints.find(aPoint) == aReferredCoincidentPoints.end())
1160         return true; // non-coincident point has been found
1161       else
1162         hasRefsToPoints = true;
1163     }
1164   }
1165
1166   if (hasRefsToPoints)
1167     theError = "Attributes are referred to the same point";
1168   return !hasRefsToPoints;
1169 }
1170
1171 bool SketchPlugin_CirclePassedPointValidator::isValid(
1172     const AttributePtr& theAttribute,
1173     const std::list<std::string>&,
1174     Events_InfoMessage& theError) const
1175 {
1176   static const std::string aErrorMessage(
1177       "Passed point refers to the same feature as a center point");
1178
1179   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1180
1181   AttributeRefAttrPtr aCenterRef =
1182       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1183   AttributeRefAttrPtr aPassedRef =
1184       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1185
1186   if (!aPassedRef->isObject())
1187     return true;
1188
1189   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1190   if (!aPassedFeature)
1191     return true;
1192
1193   if (aCenterRef->isObject()) {
1194     if (aCenterRef->object() == aPassedRef->object()) {
1195       theError = aErrorMessage;
1196       return false;
1197     }
1198   } else {
1199     AttributePoint2DPtr aCenterPoint =
1200         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1201     if (aCenterPoint) {
1202       std::set<FeaturePtr> aCoincidentFeatures =
1203           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1204       // check one of coincident features is a feature referred by passed point
1205       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1206       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1207         if (*anIt == aPassedFeature) {
1208           theError = aErrorMessage;
1209           return false;
1210         }
1211     }
1212   }
1213   return true;
1214 }
1215
1216 bool SketchPlugin_ThirdPointValidator::isValid(
1217     const AttributePtr& theAttribute,
1218     const std::list<std::string>& theArguments,
1219     Events_InfoMessage& theError) const
1220 {
1221   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1222   return arePointsNotOnLine(anOwner, theError) &&
1223          arePointsNotSeparated(anOwner, theArguments, theError);
1224 }
1225
1226 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1227                                               const std::string& thePointAttrName,
1228                                               const std::string& theRefPointAttrName)
1229 {
1230   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1231       theMacroCircle->attribute(thePointAttrName));
1232   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1233
1234   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1235   if (aRefAttr) {
1236     if (aRefAttr->isObject()) {
1237       // project a point onto selected feature
1238       std::shared_ptr<SketchPlugin_Feature> aFeature =
1239           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1240           ModelAPI_Feature::feature(aRefAttr->object()));
1241       if (aFeature) {
1242         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1243         std::shared_ptr<GeomAPI_Edge> anEdge =
1244             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1245         if (anEdge) {
1246           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1247           if (anEdge->isLine())
1248             aPoint3D = anEdge->line()->project(aPoint3D);
1249           else if (anEdge->isCircle())
1250             aPoint3D = anEdge->circle()->project(aPoint3D);
1251           if(aPoint3D)
1252             aPoint = aSketch->to2D(aPoint3D);
1253         }
1254       }
1255     } else {
1256       AttributePoint2DPtr anOtherPoint =
1257           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1258       if (anOtherPoint)
1259         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1260     }
1261   }
1262
1263   return aPoint;
1264 }
1265
1266 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1267                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1268 {
1269   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1270     thePoints[0] = toPoint(theMacroFeature,
1271           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1272           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1273     thePoints[1] = toPoint(theMacroFeature,
1274           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1275           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1276     thePoints[2] = toPoint(theMacroFeature,
1277           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1278           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1279   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1280     thePoints[0] = toPoint(theMacroFeature,
1281           SketchPlugin_MacroArc::START_POINT_2_ID(),
1282           SketchPlugin_MacroArc::START_POINT_REF_ID());
1283     thePoints[1] = toPoint(theMacroFeature,
1284           SketchPlugin_MacroArc::END_POINT_2_ID(),
1285           SketchPlugin_MacroArc::END_POINT_REF_ID());
1286     thePoints[2] = toPoint(theMacroFeature,
1287           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1288           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1289   }
1290 }
1291
1292 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1293                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1294                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1295 {
1296   static const double aTolerance = 1.e-7;
1297   if (thePoint1->distance(thePoint2) < aTolerance ||
1298       thePoint1->distance(thePoint3) < aTolerance)
1299     return true;
1300
1301   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1302                                                             thePoint2->y() - thePoint1->y()));
1303   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1304                                                             thePoint3->y() - thePoint1->y()));
1305   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1306 }
1307
1308 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1309                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1310                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1311 {
1312   static const double aTolerance = 1.e-7;
1313   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1314   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1315
1316   std::shared_ptr<GeomAPI_XYZ> aVec1 = thePoint1->xyz()->decreased(aLineLoc);
1317   // the first point is on the line
1318   if (aVec1->squareModulus() < aTolerance * aTolerance)
1319     return false;
1320   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(aVec1));
1321   std::shared_ptr<GeomAPI_XYZ> aVec2 = thePoint2->xyz()->decreased(aLineLoc);
1322   // the second point is on the line
1323   if (aVec2->squareModulus() < aTolerance * aTolerance)
1324     return false;
1325   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(aVec2));
1326
1327   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1328 }
1329
1330 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1331                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1332                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1333 {
1334   static const double aTolerance = 1.e-7;
1335   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1336   double aDistP1C = thePoint1->distance(aCenter);
1337   double aDistP2C = thePoint2->distance(aCenter);
1338   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1339 }
1340
1341 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1342     const FeaturePtr& theMacroFeature,
1343     Events_InfoMessage& theError) const
1344 {
1345   static const std::string aErrorPointsOnLine(
1346       "Selected points are on the same line");
1347
1348   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1349   threePointsOfFeature(theMacroFeature, aPoints);
1350
1351   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1352     theError = aErrorPointsOnLine;
1353     return false;
1354   }
1355   return true;
1356 }
1357
1358 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1359     const FeaturePtr& theMacroFeature,
1360     const std::list<std::string>& theArguments,
1361     Events_InfoMessage& theError) const
1362 {
1363   static const std::string aErrorPointsApart(
1364       "Selected entity is lying between first two points");
1365
1366   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1367   FeaturePtr aRefByThird;
1368   if (aThirdPointRef->isObject())
1369     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1370   if (!aRefByThird)
1371     return true;
1372
1373   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1374   threePointsOfFeature(theMacroFeature, aPoints);
1375
1376   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1377       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1378   if (!aThirdShape)
1379     return true;
1380
1381   SketchPlugin_Sketch* aSketch =
1382       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1383   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1384   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1385
1386   bool isOk = true;
1387   if (aThirdShape->isLine())
1388     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1389   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1390     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1391
1392   if (!isOk)
1393     theError = aErrorPointsApart;
1394   return isOk;
1395 }
1396
1397 bool SketchPlugin_ArcEndPointValidator::isValid(
1398     const AttributePtr& theAttribute,
1399     const std::list<std::string>& theArguments,
1400     Events_InfoMessage& theError) const
1401 {
1402   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1403   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1404
1405   if(!anEndPointRef.get()) {
1406     return true;
1407   }
1408
1409   ObjectPtr anObject = anEndPointRef->object();
1410   AttributePtr anAttr = anEndPointRef->attr();
1411   if(!anObject.get() && !anAttr.get()) {
1412     return true;
1413   }
1414
1415   if(anEndPointRef->attr().get()) {
1416     return false;
1417   }
1418
1419   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1420   if(aResult.get()) {
1421     GeomShapePtr aShape = aResult->shape();
1422     if(aShape.get() && aShape->isVertex()) {
1423       return false;
1424     }
1425   }
1426
1427   aFeature = ModelAPI_Feature::feature(anObject);
1428   if(aFeature.get()) {
1429     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1430       return false;
1431     }
1432   }
1433
1434   return true;
1435 }
1436
1437 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1438 {
1439   if(!theShape.get()) {
1440     return theShape;
1441   }
1442
1443   if(!theShape->isEdge()) {
1444     return theShape;
1445   }
1446
1447   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1448
1449   if(!anEdge.get()) {
1450     return theShape;
1451   }
1452
1453   if(anEdge->isLine()) {
1454     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1455     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1456     return aShape;
1457   }
1458
1459   if(anEdge->isCircle() || anEdge->isArc()) {
1460     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1461     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1462     return aShape;
1463   }
1464
1465   return theShape;
1466 }
1467
1468 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1469     const AttributePtr& theAttribute,
1470     const std::list<std::string>& theArguments,
1471     Events_InfoMessage& theError) const
1472 {
1473   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1474       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1475   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1476
1477   if(!anEndPointRef.get()) {
1478     return true;
1479   }
1480
1481   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1482
1483   if(!anArcShape.get() || anArcShape->isNull()) {
1484     return true;
1485   }
1486
1487   ObjectPtr anObject = anEndPointRef->object();
1488   AttributePtr anAttr = anEndPointRef->attr();
1489   if(!anObject.get() && !anAttr.get()) {
1490     return true;
1491   }
1492
1493   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1494   if(aResult.get()) {
1495     GeomShapePtr aShape = aResult->shape();
1496     if (!aShape->isEdge())
1497       return true;
1498     aShape = toInfiniteEdge(aShape);
1499     if(aShape.get() && !aShape->isNull()) {
1500       if(anArcShape->isIntersect(aShape)) {
1501         return true;
1502       }
1503     }
1504   }
1505
1506   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1507   if(aSelectedFeature.get()) {
1508     std::list<ResultPtr> aResults = aSelectedFeature->results();
1509     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1510         anIt != aResults.cend();
1511         ++anIt)
1512     {
1513       GeomShapePtr aShape = (*anIt)->shape();
1514       if (!aShape->isEdge())
1515         return true;
1516       aShape = toInfiniteEdge(aShape);
1517       if(aShape.get() && !aShape->isNull()) {
1518         if(anArcShape->isIntersect(aShape)) {
1519           return true;
1520         }
1521       }
1522     }
1523   }
1524
1525   return false;
1526 }
1527
1528 bool SketchPlugin_HasNoConstraint::isValid(const AttributePtr& theAttribute,
1529                                            const std::list<std::string>& theArguments,
1530                                            Events_InfoMessage& theError) const
1531 {
1532   std::set<std::string> aFeatureKinds;
1533   for (std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1534        anArgIt != theArguments.end(); anArgIt++) {
1535     aFeatureKinds.insert(*anArgIt);
1536   }
1537
1538   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1539     theError = "The attribute with the %1 type is not processed";
1540     theError.arg(theAttribute->attributeType());
1541     return false;
1542   }
1543
1544   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
1545                                                                       (theAttribute);
1546   bool isObject = aRefAttr->isObject();
1547   if (!isObject) {
1548     theError = "It uses an empty object";
1549     return false;
1550   }
1551   ObjectPtr anObject = aRefAttr->object();
1552   FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
1553   if (!aFeature.get()) {
1554     theError = "The feature of the checked attribute is empty";
1555     return false;
1556   }
1557
1558   FeaturePtr aCurrentFeature = ModelAPI_Feature::feature(aRefAttr->owner());
1559
1560   std::set<AttributePtr> aRefsList = anObject->data()->refsToMe();
1561   std::set<AttributePtr>::const_iterator anIt = aRefsList.begin();
1562   for (; anIt != aRefsList.end(); anIt++) {
1563     FeaturePtr aRefFeature = ModelAPI_Feature::feature((*anIt)->owner());
1564     if (aRefFeature.get() && aCurrentFeature != aRefFeature &&
1565         aFeatureKinds.find(aRefFeature->getKind()) != aFeatureKinds.end())
1566       return false; // constraint is found, that means that the check is not valid
1567   }
1568   return true;
1569 }
1570
1571 bool SketchPlugin_ReplicationReferenceValidator::isValid(
1572     const AttributePtr& theAttribute,
1573     const std::list<std::string>& theArguments,
1574     Events_InfoMessage& theError) const
1575 {
1576   AttributeRefAttrPtr aRefAttr =
1577       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1578   if (!aRefAttr)
1579   {
1580     theError = "Incorrect attribute";
1581     return false;
1582   }
1583
1584   ObjectPtr anOwner;
1585   if (aRefAttr->isObject())
1586     anOwner = aRefAttr->object();
1587   else
1588   {
1589     AttributePtr anAttr = aRefAttr->attr();
1590     anOwner = anAttr->owner();
1591   }
1592   FeaturePtr anAttrOwnerFeature = ModelAPI_Feature::feature(anOwner);
1593   if (!anAttrOwnerFeature)
1594     return true;
1595   AttributeBooleanPtr aCopyAttr = anAttrOwnerFeature->boolean(SketchPlugin_SketchEntity::COPY_ID());
1596   if (!aCopyAttr || !aCopyAttr->value())
1597     return true; // feature is not a copy, thus valid
1598
1599   // check the copy feature is already referred by the "Multi" feature
1600   FeaturePtr aMultiFeature = ModelAPI_Feature::feature(theAttribute->owner());
1601   AttributeRefListPtr aRefList = aMultiFeature->reflist(theArguments.front());
1602   for (int i = 0; i < aRefList->size(); ++i)
1603   {
1604     FeaturePtr aRefOwner = ModelAPI_Feature::feature(aRefList->object(i));
1605     if (aRefOwner == anAttrOwnerFeature)
1606     {
1607       theError = "Attribute refers to the object generated by this feature";
1608       return false;
1609     }
1610   }
1611
1612   return true;
1613 }
1614
1615 bool SketchPlugin_SketchFeatureValidator::isValid(const AttributePtr& theAttribute,
1616                                                   const std::list<std::string>& theArguments,
1617                                                   Events_InfoMessage& theError) const
1618 {
1619   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1620     theError = "The attribute with the %1 type is not processed";
1621     theError.arg(theAttribute->attributeType());
1622     return false;
1623   }
1624
1625   // check the attribute refers to a sketch feature
1626   AttributeRefAttrPtr aRefAttr =
1627       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1628   bool isSketchFeature = aRefAttr->isObject();
1629   if (isSketchFeature) {
1630     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1631     isSketchFeature = aFeature.get() != NULL;
1632     if (isSketchFeature) {
1633       std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1634           std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
1635       isSketchFeature = aSketchFeature.get() != NULL;
1636     }
1637   }
1638
1639   if (isSketchFeature)
1640     return true;
1641
1642   theError = "The object selected is not a sketch feature";
1643   return false;
1644 }
1645
1646 bool SketchPlugin_MultiRotationAngleValidator::isValid(const AttributePtr& theAttribute,
1647                                                        const std::list<std::string>& theArguments,
1648                                                        Events_InfoMessage& theError) const
1649 {
1650   if (theAttribute->attributeType() != ModelAPI_AttributeDouble::typeId()) {
1651     theError = "The attribute with the %1 type is not processed";
1652     theError.arg(theAttribute->attributeType());
1653     return false;
1654   }
1655
1656   AttributeDoublePtr anAngleAttr =
1657     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
1658
1659   FeaturePtr aMultiRotation = ModelAPI_Feature::feature(theAttribute->owner());
1660   AttributeStringPtr anAngleType =
1661       aMultiRotation->string(SketchPlugin_MultiRotation::ANGLE_TYPE());
1662   AttributeIntegerPtr aNbCopies =
1663       aMultiRotation->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID());
1664
1665   if (anAngleType->value() != "FullAngle")
1666   {
1667     double aFullAngleValue = anAngleAttr->value() * (aNbCopies->value() - 1);
1668     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 359.9999999)
1669     {
1670       theError = "Rotation single angle should produce full angle less than 360 degree";
1671       return false;
1672     }
1673   }
1674   else
1675   {
1676     double aFullAngleValue = anAngleAttr->value();
1677     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 360.0000001)
1678     {
1679       theError = "Rotation full angle should be in range [0, 360]";
1680       return false;
1681     }
1682   }
1683
1684   return true;
1685 }