src/SketchPlugin/SketchPlugin_Validators.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:        SketchPlugin_Validators.cpp
   4 // Created:     01 Aug 2014
   5 // Author:      Vitaly SMETANNIKOV
   6
   7 #include "SketchPlugin_Validators.h"
   8
   9 #include "SketchPlugin_Arc.h"
  10 #include "SketchPlugin_Circle.h"
  11 #include "SketchPlugin_ConstraintCoincidence.h"
  12 #include "SketchPlugin_ConstraintDistance.h"
  13 #include "SketchPlugin_ConstraintRigid.h"
  14 #include "SketchPlugin_ConstraintTangent.h"
  15 #include "SketchPlugin_Fillet.h"
  16 #include "SketchPlugin_Line.h"
  17 #include "SketchPlugin_MacroArc.h"
  18 #include "SketchPlugin_MacroCircle.h"
  19 #include "SketchPlugin_Point.h"
  20 #include "SketchPlugin_Sketch.h"
  21 #include "SketchPlugin_Trim.h"
  22 #include "SketchPlugin_Tools.h"
  23
  24 #include "SketcherPrs_Tools.h"
  25
  26 #include <Events_InfoMessage.h>
  27
  28 #include <ModelAPI_Data.h>
  29 #include <ModelAPI_Validator.h>
  30 #include <ModelAPI_AttributeDouble.h>
  31 #include <ModelAPI_AttributeRefAttr.h>
  32
  33 #include <ModelAPI_AttributeRefAttrList.h>
  34 #include <ModelAPI_AttributeRefList.h>
  35 #include <ModelAPI_AttributeSelectionList.h>
  36 #include <ModelAPI_AttributeString.h>
  37 #include <ModelAPI_Session.h>
  38 #include <ModelAPI_Tools.h>
  39 #include <ModelAPI_ResultConstruction.h>
  40
  41 #include <ModelGeomAlgo_Point2D.h>
  42 #include <ModelGeomAlgo_Shape.h>
  43
  44 #include <GeomAlgoAPI_EdgeBuilder.h>
  45 #include <GeomAlgoAPI_ShapeTools.h>
  46
  47 #include <GeomAPI_Circ.h>
  48 #include <GeomAPI_Dir2d.h>
  49 #include <GeomAPI_Lin.h>
  50 #include <GeomAPI_Edge.h>
  51 #include <GeomAPI_Vertex.h>
  52 #include <GeomDataAPI_Point2D.h>
  53
  54 #include <algorithm>
  55 #include <cmath>
  56
  57 const double tolerance = 1.e-7;
  58
  59 bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute,
  60                                                  const std::list<std::string>& theArguments,
  61                                                  Events_InfoMessage& theError) const
  62 {
  63   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
  64     theError = "The attribute with the %1 type is not processed";
  65     theError.arg(theAttribute->attributeType());
  66     return false;
  67   }
  68
  69   // there is a check whether the feature contains a point and a linear edge or two point values
  70   std::string aParamA = theArguments.front();
  71   SessionPtr aMgr = ModelAPI_Session::get();
  72   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
  73
  74   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
  75                                                                       (theAttribute);
  76   bool isObject = aRefAttr->isObject();
  77   if (!isObject) {
  78     // an attribute is a point. A point value is valid always for the distance
  79     return true;
  80   } else {
  81     // 1. check whether the references object is a linear
  82     ObjectPtr anObject = aRefAttr->object();
  83
  84     const ModelAPI_AttributeValidator* aShapeValidator =
  85       dynamic_cast<const ModelAPI_AttributeValidator*>(
  86       aFactory->validator("GeomValidators_ShapeType"));
  87     std::list<std::string> anArguments;
  88     anArguments.push_back("circle");
  89     Events_InfoMessage aCircleError;
  90     bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
  91     // the circle line is not a valid case
  92     if (aShapeValid) {
  93       theError = "Circle can not be used in distance constraint";
  94       return false;
  95     }
  96
  97     anArguments.clear();
  98     anArguments.push_back("line");
  99     Events_InfoMessage aLineError;
 100     aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
 101     // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
 102     if (aShapeValid) {
 103       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 104       // If it is a line then we have to check that first attribute id not a line
 105       std::shared_ptr<SketchPlugin_Feature> aSFeature =
 106         std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 107       SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 108       std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
 109       std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
 110         aFeature->data(), aParamA, aPlane);
 111       if (!aPoint.get()) {
 112         theError = "One of parameters of distance constraint should be a point";
 113         return false;
 114       }
 115     }
 116   }
 117   return true;
 118 }
 119
 120 bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute,
 121                                                 const std::list<std::string>& theArguments,
 122                                                 Events_InfoMessage& theError) const
 123 {
 124   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 125     theError = "The attribute with the %1 type is not processed";
 126     theError.arg(theAttribute->attributeType());
 127     return false;
 128   }
 129
 130   // there is a check whether the feature contains a point and a linear edge or two point values
 131   std::string aParamA = theArguments.front();
 132   SessionPtr aMgr = ModelAPI_Session::get();
 133   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 134
 135   FeaturePtr anAttributeFeature =
 136     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 137   AttributeRefAttrPtr aRefAttr =
 138     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 139
 140   bool isObject = aRefAttr->isObject();
 141   ObjectPtr anObject = aRefAttr->object();
 142   if (isObject && anObject.get()) {
 143     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 144
 145     AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 146     ObjectPtr aOtherObject = aOtherAttr->object();
 147     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 148     if (!aOtherFea)
 149       return true;
 150
 151     if (aRefFea->getKind() == SketchPlugin_Line::ID()) {
 152       if (aOtherFea->getKind() != SketchPlugin_Arc::ID() &&
 153           aOtherFea->getKind() != SketchPlugin_Circle::ID()) {
 154         theError = "It refers to a %1, but %2 is neither an %3 nor %4";
 155         theError.arg(SketchPlugin_Line::ID()).arg(aParamA)
 156             .arg(SketchPlugin_Arc::ID()).arg(SketchPlugin_Circle::ID());
 157         return false;
 158       }
 159     }
 160     else if (aRefFea->getKind() == SketchPlugin_Arc::ID() ||
 161              aRefFea->getKind() == SketchPlugin_Circle::ID()) {
 162       if (aOtherFea->getKind() != SketchPlugin_Line::ID() &&
 163           aOtherFea->getKind() != SketchPlugin_Arc::ID() &&
 164           aOtherFea->getKind() != SketchPlugin_Circle::ID()) {
 165         theError = "It refers to an %1, but %2 is not a %3 or an %4 or a %5";
 166         theError.arg(SketchPlugin_Arc::ID()).arg(aParamA)
 167             .arg(SketchPlugin_Line::ID()).arg(SketchPlugin_Arc::ID())
 168             .arg(SketchPlugin_Circle::ID());
 169         return false;
 170       }
 171     }
 172     else {
 173       theError = "It refers to %1, but should refer to %2 or %3 or %4";
 174       theError.arg(aRefFea->getKind()).arg(SketchPlugin_Line::ID())
 175           .arg(SketchPlugin_Arc::ID()).arg(SketchPlugin_Circle::ID());
 176       return false;
 177     }
 178     return true;
 179   }
 180   else {
 181     theError = "It uses an empty object";
 182     return false;
 183   }
 184
 185   return true;
 186 }
 187
 188 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 189                                              const std::list<std::string>& theArguments,
 190                                              Events_InfoMessage& theError) const
 191 {
 192   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 193     theError = "The attribute with the %1 type is not processed";
 194     theError.arg(theAttribute->attributeType());
 195     return false;
 196   }
 197
 198   std::shared_ptr<SketchPlugin_Feature> aFeature =
 199       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 200   if (!aFeature)
 201     return true;
 202
 203   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 204
 205   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 206   int aNbFeatures = aSketch->numberOfSubs();
 207   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 208     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 209     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 210       continue;
 211     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 212         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 213     if (aRefAttr->isObject()) {
 214       if (aRefAttr->object() == aRAttr->object()) {
 215         ObjectPtr anObject = aRefAttr->object();
 216         std::string aName = anObject.get() ? anObject->data()->name() : "";
 217         theError = "The object %1 has been already fixed.";
 218         theError.arg(aName);
 219         return false;
 220       }
 221     }
 222     else if (aRefAttr->attr() == aRAttr->attr()) {
 223       AttributePtr anAttribute = aRefAttr->attr();
 224       std::string aName = anAttribute.get() ? anAttribute->id() : "";
 225       theError = "The attribute %1 has been already fixed.";
 226       theError.arg(aName);
 227       return false;
 228     }
 229   }
 230   return true;
 231 }
 232
 233 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 234                                               const std::list<std::string>& theArguments,
 235                                               Events_InfoMessage& theError) const
 236 {
 237   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 238     theError = "The attribute with the %1 type is not processed";
 239     theError.arg(theAttribute->attributeType());
 240     return false;
 241   }
 242
 243   std::string aParamA = theArguments.front();
 244   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 245   AttributeRefAttrPtr aRefAttr[2];
 246   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 247   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 248
 249   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 250     theError = "Attributes can not be used in equal constraint";
 251     return false;
 252   }
 253
 254   std::string aType[2];
 255   std::list<std::string> anArguments;
 256   for (int i = 0; i < 2; i++) {
 257     ObjectPtr anObject = aRefAttr[i]->object();
 258     if (!anObject.get()) {
 259       theError = "An empty object is used.";
 260       return false;
 261     }
 262
 263     aFeature = ModelAPI_Feature::feature(anObject);
 264     if (!aFeature.get()) {
 265       theError = "An empty feature is used.";
 266       return false;
 267     }
 268
 269     aType[i] = aFeature->getKind();
 270     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 271         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 272         aFeature->getKind() != SketchPlugin_Arc::ID()) {
 273       theError = "The %1 feature kind of attribute is wrong. It should be %2 or %3 or %4";
 274       theError.arg(aFeature->getKind()).arg(SketchPlugin_Line::ID())
 275           .arg(SketchPlugin_Circle::ID()).arg(SketchPlugin_Arc::ID());
 276       // wrong type of attribute
 277       return false;
 278     }
 279   }
 280
 281   if ((aType[0] == SketchPlugin_Line::ID() || aType[1] == SketchPlugin_Line::ID()) &&
 282       aType[0] != aType[1]) {
 283     theError = "Feature with kinds %1 and %2 can not be equal.";
 284     theError.arg(aType[0]).arg(aType[1]);
 285     return false;
 286   }
 287   return true;
 288 }
 289
 290 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 291                                                const std::list<std::string>& theArguments,
 292                                                Events_InfoMessage& theError) const
 293 {
 294   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 295     theError = "The attribute with the %1 type is not processed";
 296     theError.arg(theAttribute->attributeType());
 297     return false;
 298   }
 299
 300   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 301   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 302
 303   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 304       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 305   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 306
 307   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 308     ObjectPtr aSelObject = aSelAttr->object(anInd);
 309     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 310     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 311     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 312       if (aSelObject == *aMirIter) {
 313         theError = "The object %1 is a result of mirror";
 314         theError.arg(aName);
 315         return false;
 316       }
 317   }
 318   return true;
 319 }
 320
 321 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 322                                                     const std::list<std::string>& theArguments,
 323                                                     Events_InfoMessage& theError) const
 324 {
 325   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 326     theError = "The attribute with the %1 type is not processed";
 327     theError.arg(theAttribute->attributeType());
 328     return false;
 329   }
 330
 331   // there is a check whether the feature contains a point and a linear edge or two point values
 332   std::string aParamA = theArguments.front();
 333   SessionPtr aMgr = ModelAPI_Session::get();
 334   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 335
 336   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 337   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 338   if (!aRefAttrA) {
 339     theError = "The %1 attribute should be %2";
 340     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 341     return false;
 342   }
 343
 344   AttributeRefAttrPtr aRefAttrB =
 345     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 346
 347   // first attribute is a point, it may coincide with any object
 348   if (!aRefAttrA->isObject())
 349     return true;
 350   else {
 351     ObjectPtr anObject = aRefAttrA->object();
 352     if (!anObject.get()) {
 353       theError = "%1 attribute has an empty object";
 354       theError.arg(aParamA);
 355       return false;
 356     }
 357     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 358     if (!aFeature.get()) {
 359       theError = "%1 attribute has an empty feature";
 360       theError.arg(aParamA);
 361       return false;
 362     }
 363
 364     if (aFeature->getKind() == SketchPlugin_Point::ID())
 365       return true;
 366   }
 367
 368   // second attribute is a point, it may coincide with any object
 369   if (!aRefAttrB->isObject())
 370     return true;
 371   else {
 372     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 373     if (!aFeature) {
 374       theError = "%1 attribute has an empty object";
 375       theError.arg(theAttribute->id());
 376       return false;
 377     }
 378     if (aFeature->getKind() == SketchPlugin_Point::ID())
 379       return true;
 380   }
 381   theError = "There is no an attribute filled by a point";
 382   return false;
 383 }
 384
 385
 386 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 387                                          const std::list<std::string>& theArguments,
 388                                          Events_InfoMessage& theError) const
 389 {
 390   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 391     theError = "The attribute with the %1 type is not processed";
 392     theError.arg(theAttribute->attributeType());
 393     return false;
 394   }
 395
 396   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 397   AttributeRefListPtr aSelAttr =
 398     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 399
 400   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 401       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 402   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 403       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 404   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 405   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 406
 407   std::list<ObjectPtr>::iterator anObjIter;
 408   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 409     ObjectPtr aSelObject = aSelAttr->object(anInd);
 410     anObjIter = anInitialObjects.begin();
 411     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 412       if (aSelObject == *anObjIter)
 413         break;
 414     if (anObjIter != anInitialObjects.end())
 415       continue;
 416     anObjIter = aCopiedObjects.begin();
 417     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 418       if (aSelObject == *anObjIter) {
 419         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 420         theError = "The object %1 is a result of copy";
 421         theError.arg(aName);
 422         return false;
 423       }
 424   }
 425   return true;
 426 }
 427
 428 bool SketchPlugin_SolverErrorValidator::isValid(
 429   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 430   const std::list<std::string>& theArguments,
 431   Events_InfoMessage& theError) const
 432 {
 433   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 434
 435   if (!aAttributeString->value().empty()) {
 436     theError = aAttributeString->value();
 437     return false;
 438   }
 439
 440   return true;
 441 }
 442
 443 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 444                                                         std::string theAttribute)
 445 {
 446   return true;
 447 }
 448
 449 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 450                                   const FeaturePtr theFeature)
 451 {
 452   for(std::set<AttributePtr>::const_iterator
 453       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 454     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 455     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 456     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 457       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 458         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 459       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 460         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 461       if(anAttrRefA.get()) {
 462         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 463         if(aResA.get()) {
 464           DocumentPtr aDoc = aResA->document();
 465           if(aDoc.get()) {
 466             FeaturePtr aFeatureA = aDoc->feature(aResA);
 467             if(aFeatureA.get() && aFeatureA == theFeature) {
 468               return true;
 469             }
 470           }
 471         }
 472       }
 473       if(anAttrRefB.get()) {
 474         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 475         if(aResB.get()) {
 476           DocumentPtr aDoc = aResB->document();
 477           if(aDoc.get()) {
 478             FeaturePtr aFeatureB = aDoc->feature(aResB);
 479             if(aFeatureB.get() && aFeatureB == theFeature) {
 480               return true;
 481             }
 482           }
 483         }
 484       }
 485     }
 486   }
 487   return false;
 488 }
 489
 490 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 491                                                  const std::list<std::string>& theArguments,
 492                                                  Events_InfoMessage& theError) const
 493 {
 494   AttributeRefAttrPtr aPointRefAttr =
 495     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 496   if(!aPointRefAttr.get()) {
 497     theError = "Error: Point not selected.";
 498     return false;
 499   }
 500
 501   AttributePtr aPointAttribute = aPointRefAttr->attr();
 502   if (!aPointAttribute.get()) {
 503     theError = "Error: Bad point selected.";
 504     return false;
 505   }
 506   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 507     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 508
 509   // Obtain constraint coincidence for the fillet point.
 510   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 511   FeaturePtr aConstraintCoincidence;
 512   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 513       anIt != aRefsList.cend(); ++anIt) {
 514     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 515     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 516     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 517       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 518         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 519       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 520         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 521       if(anAttrRefA.get() && !anAttrRefA->isObject()) {
 522         AttributePtr anAttrA = anAttrRefA->attr();
 523         if(aPointAttribute == anAttrA) {
 524           aConstraintCoincidence = aConstrFeature;
 525           break;
 526         }
 527       }
 528       if(anAttrRefB.get() && !anAttrRefB->isObject()) {
 529         AttributePtr anAttrB = anAttrRefB->attr();
 530         if(aPointAttribute == anAttrB) {
 531           aConstraintCoincidence = aConstrFeature;
 532           break;
 533         }
 534       }
 535     }
 536   }
 537
 538   if(!aConstraintCoincidence.get()) {
 539     theError = "Error: one of the selected point does not have coicidence.";
 540     return false;
 541   }
 542
 543   // Get coincides from constraint.
 544   std::set<FeaturePtr> aCoinsides;
 545   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 546                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 547                                         aCoinsides);
 548   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 549                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 550                                         aCoinsides);
 551
 552   // Remove points from set of coincides.
 553   std::set<FeaturePtr> aNewSetOfCoincides;
 554   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 555       anIt != aCoinsides.end(); ++anIt) {
 556     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 557       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 558     if(aSketchEntity.get() && aSketchEntity->isCopy()) {
 559       continue;
 560     }
 561     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 562         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 563           continue;
 564     }
 565     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 566       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 567       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 568         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 569       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 570       if(aDistSelectedArcCenter < tolerance) {
 571         continue;
 572       }
 573     }
 574     aNewSetOfCoincides.insert(*anIt);
 575   }
 576   aCoinsides = aNewSetOfCoincides;
 577
 578   // If we still have more than two coincides remove auxilary entities from set of coincides.
 579   if(aCoinsides.size() > 2) {
 580     aNewSetOfCoincides.clear();
 581     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 582         anIt != aCoinsides.end(); ++anIt) {
 583       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 584         aNewSetOfCoincides.insert(*anIt);
 585       }
 586     }
 587     aCoinsides = aNewSetOfCoincides;
 588   }
 589
 590   if(aCoinsides.size() != 2) {
 591     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 592     return false;
 593   }
 594
 595   // Check that selected edges don't have tangent constraint.
 596   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 597   FeaturePtr aFirstFeature = *anIt++;
 598   FeaturePtr aSecondFeature = *anIt;
 599   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 600   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 601     theError = "Error: Edges in selected point has tangent constraint.";
 602     return false;
 603   }
 604
 605   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 606   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 607       aResIt != aFirstResults.end(); ++aResIt) {
 608     ResultPtr aRes = *aResIt;
 609     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 610     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 611       theError = "Error: Edges in selected point has tangent constraint.";
 612       return false;
 613     }
 614   }
 615
 616   // Check that lines not collinear
 617   if(aFirstFeature->getKind() == SketchPlugin_Line::ID() &&
 618       aSecondFeature->getKind() == SketchPlugin_Line::ID()) {
 619     std::string aStartAttr = SketchPlugin_Line::START_ID();
 620     std::string anEndAttr = SketchPlugin_Line::END_ID();
 621     std::shared_ptr<GeomAPI_Pnt2d> aFirstStartPnt, aFirstEndPnt, aSecondStartPnt, aSecondEndPnt;
 622     aFirstStartPnt =
 623       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 624       aFirstFeature->attribute(aStartAttr))->pnt();
 625     aFirstEndPnt =
 626       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aFirstFeature->attribute(anEndAttr))->pnt();
 627     aSecondStartPnt =
 628       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 629       aSecondFeature->attribute(aStartAttr))->pnt();
 630     aSecondEndPnt =
 631       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 632       aSecondFeature->attribute(anEndAttr))->pnt();
 633     double aCheck1 =
 634       fabs((aFirstEndPnt->x() - aFirstStartPnt->x()) *
 635       (aSecondStartPnt->y() - aFirstStartPnt->y()) -
 636       (aSecondStartPnt->x() - aFirstStartPnt->x()) * (aFirstEndPnt->y() - aFirstStartPnt->y()));
 637     double aCheck2 =
 638       fabs((aFirstEndPnt->x() - aFirstStartPnt->x()) *
 639       (aSecondEndPnt->y() - aFirstStartPnt->y()) -
 640       (aSecondEndPnt->x() - aFirstStartPnt->x()) * (aFirstEndPnt->y() - aFirstStartPnt->y()));
 641     if(aCheck1 < 1.e-7 && aCheck2 < 1.e-7) {
 642       return false;
 643     }
 644   }
 645
 646
 647   return true;
 648 }
 649
 650 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 651                                                     const std::list<std::string>& theArguments,
 652                                                     Events_InfoMessage& theError) const
 653 {
 654   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 655     theError = "The attribute with the %1 type is not processed";
 656     theError.arg(theAttribute->attributeType());
 657     return false;
 658   }
 659
 660   // there is a check whether the feature contains a point and a linear edge or two point values
 661   std::string aParamA = theArguments.front();
 662   SessionPtr aMgr = ModelAPI_Session::get();
 663   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 664
 665   FeaturePtr anAttributeFeature =
 666     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 667   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 668   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 669
 670   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 671   int aNbPoints = 0;
 672   int aNbLines = 0;
 673   for (int i = 0; i < 2; ++i) {
 674     if (!aRefAttrs[i]->isObject())
 675       ++aNbPoints;
 676     else {
 677       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 678       if (!aFeature) {
 679         if (aNbPoints + aNbLines != 0)
 680           return true;
 681         else continue;
 682       }
 683
 684       if (aFeature->getKind() == SketchPlugin_Point::ID())
 685         ++aNbPoints;
 686       else if (aFeature->getKind() == SketchPlugin_Line::ID())
 687         ++aNbLines;
 688     }
 689   }
 690
 691   if (aNbPoints != 1 || aNbLines != 1) {
 692     theError = "Middle point constraint allows points and lines only";
 693     return false;
 694   }
 695   return true;
 696 }
 697
 698 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 699                                                     const std::list<std::string>& /*theArguments*/,
 700                                                     Events_InfoMessage& theError) const
 701 {
 702   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 703     theError = "The attribute with the %1 type is not processed";
 704     theError.arg(theAttribute->attributeType());
 705     return false;
 706   }
 707   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 708   AttributePtr anAttr = aRefAttr->attr();
 709   if (!anAttr) {
 710     theError = "The attribute %1 should be a point";
 711     theError.arg(theAttribute->id());
 712     return false;
 713   }
 714
 715   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 716   const std::string& aFeatureType = anAttrFeature->getKind();
 717   if (aFeatureType == SketchPlugin_Arc::ID()) {
 718     // selected point should not be a center of arc
 719     const std::string& aPntId = anAttr->id();
 720     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 721       theError = "The attribute %1 is not supported";
 722       theError.arg(aPntId);
 723       return false;
 724     }
 725   }
 726   else if (aFeatureType == SketchPlugin_Line::ID()) {
 727     // selected point should be bound point of line
 728     const std::string& aPntId = anAttr->id();
 729     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 730       theError = "The attribute %1 is not supported";
 731       theError.arg(aPntId);
 732       return false;
 733     }
 734   }
 735   else {
 736     theError = "Unable to build tangent arc on %1";
 737     theError.arg(anAttrFeature->getKind());
 738     return false;
 739   }
 740
 741   return true;
 742 }
 743
 744 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 745                                                  const std::list<std::string>& theArguments,
 746                                                  Events_InfoMessage& theError) const
 747 {
 748   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 749     theError = "The attribute with the %1 type is not processed";
 750     theError.arg(theAttribute->attributeType());
 751     return false;
 752   }
 753   AttributeSelectionPtr aLineAttr =
 754                        std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 755   std::shared_ptr<GeomAPI_Edge> anEdge;
 756   if(aLineAttr && aLineAttr->value() && aLineAttr->value()->isEdge()) {
 757     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aLineAttr->value()));
 758   } else if(aLineAttr->context() &&
 759             aLineAttr->context()->shape() && aLineAttr->context()->shape()->isEdge()) {
 760     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aLineAttr->context()->shape()));
 761   }
 762
 763   if (!anEdge || !anEdge->isLine()) {
 764     theError = "The attribute %1 should be a line";
 765     theError.arg(theAttribute->id());
 766     return false;
 767   }
 768
 769   std::shared_ptr<GeomAPI_Dir> aLineDir = anEdge->line()->direction();
 770
 771   // find a sketch
 772   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 773   std::set<AttributePtr> aRefs = aLineAttr->owner()->data()->refsToMe();
 774   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 775   for (; anIt != aRefs.end(); ++anIt) {
 776     CompositeFeaturePtr aComp =
 777         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 778     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 779       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 780       break;
 781     }
 782   }
 783   if (!aSketch) {
 784     theError = "There is no sketch referring to the current feature";
 785     return false;
 786   }
 787
 788   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 789   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
 790   return fabs(aNormal->dot(aLineDir)) > tolerance * tolerance;
 791 }
 792
 793 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
 794                                           const std::list<std::string>& theArguments,
 795                                           Events_InfoMessage& theError) const
 796 {
 797   bool aValid = false;
 798
 799   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 800     theError = "The attribute with the %1 type is not processed";
 801     theError.arg(theAttribute->attributeType());
 802     return aValid;
 803   }
 804   AttributeReferencePtr aFeatureAttr =
 805             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 806
 807   ObjectPtr anAttrObject = aFeatureAttr->value();
 808   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
 809   if (!anAttrFeature)
 810     return aValid;
 811
 812   std::string aKind = anAttrFeature->getKind();
 813   if (aKind == SketchPlugin_Line::ID() ||
 814       aKind == SketchPlugin_Arc::ID() ||
 815       aKind == SketchPlugin_Circle::ID()) {
 816
 817     std::set<ResultPtr> anEdgeShapes;
 818     ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
 819     if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
 820       return aValid;
 821
 822     // coincidences to the feature
 823     std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
 824     ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
 825                         SketchPlugin_ConstraintCoincidence::ID(),
 826                         aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
 827
 828     GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
 829     std::shared_ptr<SketchPlugin_Feature> aSFeature =
 830                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
 831     SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 832
 833     std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
 834     std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
 835         aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 836     std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 837         aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
 838     std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 839         aData->attribute(SketchPlugin_Sketch::NORM_ID()));
 840     std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
 841
 842     typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
 843                      std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 844                                std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
 845     PointToRefsMap aPointsInfo;
 846
 847     ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
 848                                                 aX->dir(), aDirY, aPointsInfo);
 849     int aCoincidentToFeature = (int)aPointsInfo.size();
 850     if (aKind == SketchPlugin_Circle::ID())
 851       aValid = aCoincidentToFeature >= 2;
 852     else
 853       aValid = aCoincidentToFeature >= 1;
 854   }
 855
 856   return aValid;
 857 }
 858
 859 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
 860                                          const std::list<std::string>& theArguments,
 861                                          Events_InfoMessage& theError) const
 862 {
 863   bool aValid = false;
 864
 865   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 866     theError = "The attribute with the %1 type is not processed";
 867     theError.arg(theAttribute->attributeType());
 868     return aValid;
 869   }
 870   AttributeReferencePtr aBaseObjectAttr =
 871             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 872
 873   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
 874                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 875
 876   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 877   if (!aBaseObject) {
 878     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
 879     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
 880     aBaseObject = aBaseObjectAttr->value();
 881   }
 882
 883   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
 884   if (!aBaseFeature)
 885     return aValid;
 886
 887   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
 888                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
 889   if (!aSketchFeature.get() || aSketchFeature->isCopy())
 890     return aValid;
 891
 892   std::string aKind = aBaseFeature->getKind();
 893   if (aKind != SketchPlugin_Line::ID() &&
 894       aKind != SketchPlugin_Arc::ID() &&
 895       aKind != SketchPlugin_Circle::ID())
 896     return aValid;
 897
 898   // point on feature
 899   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 900                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
 901
 902   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
 903
 904   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
 905   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
 906                                                               anAttributePnt2d->y());
 907
 908   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
 909   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
 910            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 911                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
 912   SketchPlugin_Trim::fillObjectShapes(aBaseObject, aSketch->data()->owner(),
 913                                       aCashedShapes, anObjectToPoints);
 914   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
 915
 916   return aShapes.size() > 1;
 917 }
 918
 919 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
 920                                                const std::list<std::string>& theArguments,
 921                                                Events_InfoMessage& theError) const
 922 {
 923   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 924     theError = "The attribute with the %1 type is not processed";
 925     theError.arg(theAttribute->attributeType());
 926     return false;
 927   }
 928
 929   AttributeSelectionPtr aFeatureAttr =
 930       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 931   std::shared_ptr<GeomAPI_Edge> anEdge;
 932   if (aFeatureAttr.get()) {
 933     GeomShapePtr aVal = aFeatureAttr->value();
 934     ResultPtr aRes = aFeatureAttr->context();
 935     if(aFeatureAttr->value() && aFeatureAttr->value()->isEdge()) {
 936       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
 937     } else if(aFeatureAttr->context() && aFeatureAttr->context()->shape() &&
 938               aFeatureAttr->context()->shape()->isEdge()) {
 939       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
 940     }
 941   }
 942   if (!anEdge) {
 943     theError = "The attribute %1 should be an edge";
 944     theError.arg(theAttribute->id());
 945     return false;
 946   }
 947
 948   // find a sketch
 949   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 950   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
 951   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 952   for (; anIt != aRefs.end(); ++anIt) {
 953     CompositeFeaturePtr aComp =
 954         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 955     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 956       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 957       break;
 958     }
 959   }
 960   if (!aSketch) {
 961     theError = "There is no sketch referring to the current feature";
 962     return false;
 963   }
 964
 965   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 966   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
 967   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
 968
 969   if (anEdge->isLine()) {
 970     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
 971     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
 972     std::shared_ptr<GeomAPI_Pnt> aLineLoc = aLine->location();
 973     double aDot = aNormal->dot(aLineDir);
 974     double aDist = aLineLoc->xyz()->decreased(anOrigin->xyz())->dot(aNormal->xyz());
 975     bool aValid = (fabs(aDot) >= tolerance && fabs(aDot) < 1.0 - tolerance) ||
 976            (fabs(aDot) < tolerance && fabs(aDist) > tolerance);
 977     if (!aValid)
 978       theError = "Error: Edge is already in the sketch plane.";
 979     return aValid;
 980   }
 981   else if (anEdge->isCircle() || anEdge->isArc()) {
 982     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
 983     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
 984     std::shared_ptr<GeomAPI_Pnt> aCircCenter = aCircle->center();
 985     double aDot = fabs(aNormal->dot(aCircNormal));
 986     double aDist = aCircCenter->xyz()->decreased(anOrigin->xyz())->dot(aNormal->xyz());
 987     bool aValid = fabs(aDot - 1.0) < tolerance * tolerance && fabs(aDist) > tolerance;
 988     if (!aValid)
 989       theError.arg(anEdge->isCircle() ? "Error: Cirlce is already in the sketch plane."
 990                                       : "Error: Arc is already in the sketch plane.");
 991     return aValid;
 992   }
 993
 994   theError = "Error: Selected object is not line, circle or arc.";
 995   return false;
 996 }
 997
 998
 999 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1000                                    const std::set<FeaturePtr>& theSet2)
1001 {
1002   std::set<FeaturePtr> aCommon;
1003   if (theSet1.empty() || theSet2.empty())
1004     return aCommon;
1005
1006   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1007   for (; anIt2 != theSet2.end(); ++anIt2)
1008     if (theSet1.find(*anIt2) != theSet1.end())
1009       aCommon.insert(*anIt2);
1010   return aCommon;
1011 }
1012
1013 bool SketchPlugin_DifferentReferenceValidator::isValid(
1014     const AttributePtr& theAttribute,
1015     const std::list<std::string>& theArguments,
1016     Events_InfoMessage& theError) const
1017 {
1018   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1019
1020   int aNbFeaturesReferred = 0;
1021   int aNbAttributesReferred = 0;
1022   std::set<FeaturePtr> aCommonReferredFeatures;
1023
1024   // find all features referred by attributes listed in theArguments
1025   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1026   for (; anArgIt != theArguments.end(); ++anArgIt) {
1027     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1028     if (!aRefAttr)
1029       continue;
1030
1031     std::set<FeaturePtr> aCoincidentFeatures;
1032     if (aRefAttr->isObject()) {
1033       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1034       if (aFeature) {
1035         aCoincidentFeatures.insert(aFeature);
1036         aNbFeaturesReferred += 1;
1037       }
1038     } else {
1039       AttributePoint2DPtr aPoint =
1040           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1041       if (aPoint) {
1042         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1043         aNbAttributesReferred += 1;
1044       }
1045     }
1046
1047     if (aCommonReferredFeatures.empty())
1048       aCommonReferredFeatures = aCoincidentFeatures;
1049     else
1050       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1051
1052     if (aCommonReferredFeatures.empty())
1053       return true;
1054   }
1055
1056   bool isOk = aNbFeaturesReferred < 1;
1057   if (aNbFeaturesReferred == 1) {
1058     if (aCommonReferredFeatures.size() == 1) {
1059       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1060       isOk = aNbAttributesReferred <= 1 ||
1061              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1062              aFeature->getKind() == SketchPlugin_Arc::ID();
1063     } else
1064       isOk = false;
1065   }
1066
1067   if (!isOk)
1068     theError = "Attributes are referred to the same feature";
1069   return isOk;
1070 }
1071
1072 bool SketchPlugin_CirclePassedPointValidator::isValid(
1073     const AttributePtr& theAttribute,
1074     const std::list<std::string>&,
1075     Events_InfoMessage& theError) const
1076 {
1077   static const std::string aErrorMessage(
1078       "Passed point refers to the same feature as a center point");
1079
1080   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1081
1082   AttributeRefAttrPtr aCenterRef =
1083       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1084   AttributeRefAttrPtr aPassedRef =
1085       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1086
1087   if (!aPassedRef->isObject())
1088     return true;
1089
1090   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1091   if (!aPassedFeature)
1092     return true;
1093
1094   if (aCenterRef->isObject()) {
1095     FeaturePtr aCenterFeature = ModelAPI_Feature::feature(aCenterRef->object());
1096     if (aCenterFeature == aPassedFeature) {
1097       theError = aErrorMessage;
1098       return false;
1099     }
1100   } else {
1101     AttributePoint2DPtr aCenterPoint =
1102         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1103     if (aCenterPoint) {
1104       std::set<FeaturePtr> aCoincidentFeatures =
1105           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1106       // check one of coincident features is a feature referred by passed point
1107       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1108       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1109         if (*anIt == aPassedFeature) {
1110           theError = aErrorMessage;
1111           return false;
1112         }
1113     }
1114   }
1115   return true;
1116 }
1117
1118 bool SketchPlugin_ThirdPointValidator::isValid(
1119     const AttributePtr& theAttribute,
1120     const std::list<std::string>& theArguments,
1121     Events_InfoMessage& theError) const
1122 {
1123   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1124   return arePointsNotOnLine(anOwner, theError) &&
1125          arePointsNotSeparated(anOwner, theArguments, theError);
1126 }
1127
1128 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1129                                               const std::string& thePointAttrName,
1130                                               const std::string& theRefPointAttrName)
1131 {
1132   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1133       theMacroCircle->attribute(thePointAttrName));
1134   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1135
1136   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1137   if (aRefAttr) {
1138     if (aRefAttr->isObject()) {
1139       // project a point onto selected feature
1140       std::shared_ptr<SketchPlugin_Feature> aFeature =
1141           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1142           ModelAPI_Feature::feature(aRefAttr->object()));
1143       if (aFeature) {
1144         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1145         std::shared_ptr<GeomAPI_Edge> anEdge =
1146             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1147         if (anEdge) {
1148           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1149           if (anEdge->isLine())
1150             aPoint3D = anEdge->line()->project(aPoint3D);
1151           else if (anEdge->isCircle())
1152             aPoint3D = anEdge->circle()->project(aPoint3D);
1153           if(aPoint3D)
1154             aPoint = aSketch->to2D(aPoint3D);
1155         }
1156       }
1157     } else {
1158       AttributePoint2DPtr anOtherPoint =
1159           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1160       if (anOtherPoint)
1161         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1162     }
1163   }
1164
1165   return aPoint;
1166 }
1167
1168 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1169                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1170 {
1171   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1172     thePoints[0] = toPoint(theMacroFeature,
1173           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1174           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1175     thePoints[1] = toPoint(theMacroFeature,
1176           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1177           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1178     thePoints[2] = toPoint(theMacroFeature,
1179           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1180           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1181   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1182     thePoints[0] = toPoint(theMacroFeature,
1183           SketchPlugin_MacroArc::START_POINT_2_ID(),
1184           SketchPlugin_MacroArc::START_POINT_REF_ID());
1185     thePoints[1] = toPoint(theMacroFeature,
1186           SketchPlugin_MacroArc::END_POINT_2_ID(),
1187           SketchPlugin_MacroArc::END_POINT_REF_ID());
1188     thePoints[2] = toPoint(theMacroFeature,
1189           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1190           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1191   }
1192 }
1193
1194 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1195                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1196                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1197 {
1198   static const double aTolerance = 1.e-7;
1199   if (thePoint1->distance(thePoint2) < aTolerance ||
1200       thePoint1->distance(thePoint3) < aTolerance)
1201     return true;
1202
1203   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1204                                                             thePoint2->y() - thePoint1->y()));
1205   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1206                                                             thePoint3->y() - thePoint1->y()));
1207   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1208 }
1209
1210 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1211                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1212                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1213 {
1214   static const double aTolerance = 1.e-7;
1215   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1216   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1217   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(thePoint1->xyz()->decreased(aLineLoc)));
1218   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(thePoint2->xyz()->decreased(aLineLoc)));
1219   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1220 }
1221
1222 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1223                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1224                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1225 {
1226   static const double aTolerance = 1.e-7;
1227   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1228   double aDistP1C = thePoint1->distance(aCenter);
1229   double aDistP2C = thePoint2->distance(aCenter);
1230   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1231 }
1232
1233 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1234     const FeaturePtr& theMacroFeature,
1235     Events_InfoMessage& theError) const
1236 {
1237   static const std::string aErrorPointsOnLine(
1238       "Selected points are on the same line");
1239
1240   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1241   threePointsOfFeature(theMacroFeature, aPoints);
1242
1243   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1244     theError = aErrorPointsOnLine;
1245     return false;
1246   }
1247   return true;
1248 }
1249
1250 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1251     const FeaturePtr& theMacroFeature,
1252     const std::list<std::string>& theArguments,
1253     Events_InfoMessage& theError) const
1254 {
1255   static const std::string aErrorPointsApart(
1256       "Selected entity is lying between first two points");
1257
1258   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1259   FeaturePtr aRefByThird;
1260   if (aThirdPointRef->isObject())
1261     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1262   if (!aRefByThird)
1263     return true;
1264
1265   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1266   threePointsOfFeature(theMacroFeature, aPoints);
1267
1268   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1269       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1270   if (!aThirdShape)
1271     return true;
1272
1273   SketchPlugin_Sketch* aSketch =
1274       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1275   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1276   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1277
1278   bool isOk = true;
1279   if (aThirdShape->isLine())
1280     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1281   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1282     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1283
1284   if (!isOk)
1285     theError = aErrorPointsApart;
1286   return isOk;
1287 }
1288
1289 bool SketchPlugin_ArcEndPointValidator::isValid(
1290     const AttributePtr& theAttribute,
1291     const std::list<std::string>& theArguments,
1292     Events_InfoMessage& theError) const
1293 {
1294   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1295   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1296
1297   if(!anEndPointRef.get()) {
1298     return true;
1299   }
1300
1301   ObjectPtr anObject = anEndPointRef->object();
1302   AttributePtr anAttr = anEndPointRef->attr();
1303   if(!anObject.get() && !anAttr.get()) {
1304     return true;
1305   }
1306
1307   if(anEndPointRef->attr().get()) {
1308     return false;
1309   }
1310
1311   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1312   if(aResult.get()) {
1313     GeomShapePtr aShape = aResult->shape();
1314     if(aShape.get() && aShape->isVertex()) {
1315       return false;
1316     }
1317   }
1318
1319   aFeature = ModelAPI_Feature::feature(anObject);
1320   if(aFeature.get()) {
1321     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1322       return false;
1323     }
1324   }
1325
1326   return true;
1327 }
1328
1329 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1330 {
1331   if(!theShape.get()) {
1332     return theShape;
1333   }
1334
1335   if(!theShape->isEdge()) {
1336     return theShape;
1337   }
1338
1339   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1340
1341   if(!anEdge.get()) {
1342     return theShape;
1343   }
1344
1345   if(anEdge->isLine()) {
1346     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1347     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1348     return aShape;
1349   }
1350
1351   if(anEdge->isCircle() || anEdge->isArc()) {
1352     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1353     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1354     return aShape;
1355   }
1356
1357   return theShape;
1358 }
1359
1360 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1361     const AttributePtr& theAttribute,
1362     const std::list<std::string>& theArguments,
1363     Events_InfoMessage& theError) const
1364 {
1365   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1366       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1367   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1368
1369   if(!anEndPointRef.get()) {
1370     return true;
1371   }
1372
1373   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1374
1375   if(!anArcShape.get() || anArcShape->isNull()) {
1376     return true;
1377   }
1378
1379   ObjectPtr anObject = anEndPointRef->object();
1380   AttributePtr anAttr = anEndPointRef->attr();
1381   if(!anObject.get() && !anAttr.get()) {
1382     return true;
1383   }
1384
1385   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1386   if(aResult.get()) {
1387     GeomShapePtr aShape = toInfiniteEdge(aResult->shape());
1388     if(aShape.get() && !aShape->isNull()) {
1389       if(anArcShape->isIntersect(aShape)) {
1390         return true;
1391       }
1392     }
1393   }
1394
1395   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1396   if(aSelectedFeature.get()) {
1397     std::list<ResultPtr> aResults = aSelectedFeature->results();
1398     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1399         anIt != aResults.cend();
1400         ++anIt)
1401     {
1402       GeomShapePtr aShape = toInfiniteEdge((*anIt)->shape());
1403       if(aShape.get() && !aShape->isNull()) {
1404         if(anArcShape->isIntersect(aShape)) {
1405           return true;
1406         }
1407       }
1408     }
1409   }
1410
1411   return false;
1412 }