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 the features are not tangent
 617   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 618   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 619   if (!aFirstShape || !aFirstShape->isEdge() ||
 620       !aSecondShape || !aSecondShape->isEdge()) {
 621     theError = "Error: At least on of the features is not an edge";
 622     return false;
 623   }
 624
 625   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 626   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 627
 628   static const double TOL = 1.e-7;
 629   if (anEdge1->isLine() && anEdge2->isLine()) {
 630     // Check that lines not collinear
 631     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 632     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 633     double aCross = aDir1->cross(aDir2)->squareModulus();
 634     if (aCross < TOL * TOL)
 635       return false;
 636   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 637     // check the circles are not tangent
 638     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 639     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 640     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 641     double aRadSum = aCirc1->radius() + aCirc2->radius();
 642     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 643     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 644       return false;
 645   } else {
 646     // check whether line and arc are tangent
 647     std::shared_ptr<GeomAPI_Circ> aCirc;
 648     std::shared_ptr<GeomAPI_Lin> aLine;
 649     if (anEdge1->isLine()) {
 650       aLine = anEdge1->line();
 651       aCirc = anEdge2->circle();
 652     } else {
 653       aCirc = anEdge1->circle();
 654       aLine = anEdge2->line();
 655     }
 656
 657     double aDistCL = aLine->distance(aCirc->center());
 658     if (fabs(aDistCL - aCirc->radius()) < TOL)
 659       return false;
 660   }
 661
 662   return true;
 663 }
 664
 665 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 666                                                     const std::list<std::string>& theArguments,
 667                                                     Events_InfoMessage& theError) const
 668 {
 669   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 670     theError = "The attribute with the %1 type is not processed";
 671     theError.arg(theAttribute->attributeType());
 672     return false;
 673   }
 674
 675   // there is a check whether the feature contains a point and a linear edge or two point values
 676   std::string aParamA = theArguments.front();
 677   SessionPtr aMgr = ModelAPI_Session::get();
 678   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 679
 680   FeaturePtr anAttributeFeature =
 681     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 682   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 683   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 684
 685   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 686   int aNbPoints = 0;
 687   int aNbLines = 0;
 688   for (int i = 0; i < 2; ++i) {
 689     if (!aRefAttrs[i]->isObject())
 690       ++aNbPoints;
 691     else {
 692       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 693       if (!aFeature) {
 694         if (aNbPoints + aNbLines != 0)
 695           return true;
 696         else continue;
 697       }
 698
 699       if (aFeature->getKind() == SketchPlugin_Point::ID())
 700         ++aNbPoints;
 701       else if (aFeature->getKind() == SketchPlugin_Line::ID())
 702         ++aNbLines;
 703     }
 704   }
 705
 706   if (aNbPoints != 1 || aNbLines != 1) {
 707     theError = "Middle point constraint allows points and lines only";
 708     return false;
 709   }
 710   return true;
 711 }
 712
 713 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 714                                                     const std::list<std::string>& /*theArguments*/,
 715                                                     Events_InfoMessage& theError) const
 716 {
 717   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 718     theError = "The attribute with the %1 type is not processed";
 719     theError.arg(theAttribute->attributeType());
 720     return false;
 721   }
 722   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 723   AttributePtr anAttr = aRefAttr->attr();
 724   if (!anAttr) {
 725     theError = "The attribute %1 should be a point";
 726     theError.arg(theAttribute->id());
 727     return false;
 728   }
 729
 730   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 731   const std::string& aFeatureType = anAttrFeature->getKind();
 732   if (aFeatureType == SketchPlugin_Arc::ID()) {
 733     // selected point should not be a center of arc
 734     const std::string& aPntId = anAttr->id();
 735     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 736       theError = "The attribute %1 is not supported";
 737       theError.arg(aPntId);
 738       return false;
 739     }
 740   }
 741   else if (aFeatureType == SketchPlugin_Line::ID()) {
 742     // selected point should be bound point of line
 743     const std::string& aPntId = anAttr->id();
 744     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 745       theError = "The attribute %1 is not supported";
 746       theError.arg(aPntId);
 747       return false;
 748     }
 749   }
 750   else {
 751     theError = "Unable to build tangent arc on %1";
 752     theError.arg(anAttrFeature->getKind());
 753     return false;
 754   }
 755
 756   return true;
 757 }
 758
 759 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 760                                                  const std::list<std::string>& theArguments,
 761                                                  Events_InfoMessage& theError) const
 762 {
 763   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 764     theError = "The attribute with the %1 type is not processed";
 765     theError.arg(theAttribute->attributeType());
 766     return false;
 767   }
 768   AttributeSelectionPtr aLineAttr =
 769                        std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 770   std::shared_ptr<GeomAPI_Edge> anEdge;
 771   if(aLineAttr && aLineAttr->value() && aLineAttr->value()->isEdge()) {
 772     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aLineAttr->value()));
 773   } else if(aLineAttr->context() &&
 774             aLineAttr->context()->shape() && aLineAttr->context()->shape()->isEdge()) {
 775     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aLineAttr->context()->shape()));
 776   }
 777
 778   if (!anEdge || !anEdge->isLine()) {
 779     theError = "The attribute %1 should be a line";
 780     theError.arg(theAttribute->id());
 781     return false;
 782   }
 783
 784   std::shared_ptr<GeomAPI_Dir> aLineDir = anEdge->line()->direction();
 785
 786   // find a sketch
 787   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 788   std::set<AttributePtr> aRefs = aLineAttr->owner()->data()->refsToMe();
 789   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 790   for (; anIt != aRefs.end(); ++anIt) {
 791     CompositeFeaturePtr aComp =
 792         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 793     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 794       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 795       break;
 796     }
 797   }
 798   if (!aSketch) {
 799     theError = "There is no sketch referring to the current feature";
 800     return false;
 801   }
 802
 803   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 804   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
 805   return fabs(aNormal->dot(aLineDir)) > tolerance * tolerance;
 806 }
 807
 808 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
 809                                           const std::list<std::string>& theArguments,
 810                                           Events_InfoMessage& theError) const
 811 {
 812   bool aValid = false;
 813
 814   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 815     theError = "The attribute with the %1 type is not processed";
 816     theError.arg(theAttribute->attributeType());
 817     return aValid;
 818   }
 819   AttributeReferencePtr aFeatureAttr =
 820             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 821
 822   ObjectPtr anAttrObject = aFeatureAttr->value();
 823   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
 824   if (!anAttrFeature)
 825     return aValid;
 826
 827   std::string aKind = anAttrFeature->getKind();
 828   if (aKind == SketchPlugin_Line::ID() ||
 829       aKind == SketchPlugin_Arc::ID() ||
 830       aKind == SketchPlugin_Circle::ID()) {
 831
 832     std::set<ResultPtr> anEdgeShapes;
 833     ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
 834     if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
 835       return aValid;
 836
 837     // coincidences to the feature
 838     std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
 839     ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
 840                         SketchPlugin_ConstraintCoincidence::ID(),
 841                         aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
 842
 843     GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
 844     std::shared_ptr<SketchPlugin_Feature> aSFeature =
 845                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
 846     SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 847
 848     std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
 849     std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
 850         aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 851     std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 852         aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
 853     std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 854         aData->attribute(SketchPlugin_Sketch::NORM_ID()));
 855     std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
 856
 857     typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
 858                      std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 859                                std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
 860     PointToRefsMap aPointsInfo;
 861
 862     ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
 863                                                 aX->dir(), aDirY, aPointsInfo);
 864     int aCoincidentToFeature = (int)aPointsInfo.size();
 865     if (aKind == SketchPlugin_Circle::ID())
 866       aValid = aCoincidentToFeature >= 2;
 867     else
 868       aValid = aCoincidentToFeature >= 1;
 869   }
 870
 871   return aValid;
 872 }
 873
 874 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
 875                                          const std::list<std::string>& theArguments,
 876                                          Events_InfoMessage& theError) const
 877 {
 878   bool aValid = false;
 879
 880   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 881     theError = "The attribute with the %1 type is not processed";
 882     theError.arg(theAttribute->attributeType());
 883     return aValid;
 884   }
 885   AttributeReferencePtr aBaseObjectAttr =
 886             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 887
 888   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
 889                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 890
 891   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 892   if (!aBaseObject) {
 893     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
 894     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
 895     aBaseObject = aBaseObjectAttr->value();
 896   }
 897
 898   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
 899   if (!aBaseFeature)
 900     return aValid;
 901
 902   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
 903                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
 904   if (!aSketchFeature.get() || aSketchFeature->isCopy())
 905     return aValid;
 906
 907   std::string aKind = aBaseFeature->getKind();
 908   if (aKind != SketchPlugin_Line::ID() &&
 909       aKind != SketchPlugin_Arc::ID() &&
 910       aKind != SketchPlugin_Circle::ID())
 911     return aValid;
 912
 913   // point on feature
 914   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 915                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
 916
 917   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
 918
 919   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
 920   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
 921                                                               anAttributePnt2d->y());
 922
 923   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
 924   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
 925            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 926                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
 927   SketchPlugin_Trim::fillObjectShapes(aBaseObject, aSketch->data()->owner(),
 928                                       aCashedShapes, anObjectToPoints);
 929   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
 930
 931   return aShapes.size() > 1;
 932 }
 933
 934 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
 935                                                const std::list<std::string>& theArguments,
 936                                                Events_InfoMessage& theError) const
 937 {
 938   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 939     theError = "The attribute with the %1 type is not processed";
 940     theError.arg(theAttribute->attributeType());
 941     return false;
 942   }
 943
 944   AttributeSelectionPtr aFeatureAttr =
 945       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 946   std::shared_ptr<GeomAPI_Edge> anEdge;
 947   if (aFeatureAttr.get()) {
 948     GeomShapePtr aVal = aFeatureAttr->value();
 949     ResultPtr aRes = aFeatureAttr->context();
 950     if(aFeatureAttr->value() && aFeatureAttr->value()->isEdge()) {
 951       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
 952     } else if(aFeatureAttr->context() && aFeatureAttr->context()->shape() &&
 953               aFeatureAttr->context()->shape()->isEdge()) {
 954       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
 955     }
 956   }
 957   if (!anEdge) {
 958     theError = "The attribute %1 should be an edge";
 959     theError.arg(theAttribute->id());
 960     return false;
 961   }
 962
 963   // find a sketch
 964   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 965   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
 966   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 967   for (; anIt != aRefs.end(); ++anIt) {
 968     CompositeFeaturePtr aComp =
 969         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 970     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 971       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 972       break;
 973     }
 974   }
 975   if (!aSketch) {
 976     theError = "There is no sketch referring to the current feature";
 977     return false;
 978   }
 979
 980   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 981   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
 982   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
 983
 984   if (anEdge->isLine()) {
 985     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
 986     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
 987     std::shared_ptr<GeomAPI_Pnt> aLineLoc = aLine->location();
 988     double aDot = aNormal->dot(aLineDir);
 989     double aDist = aLineLoc->xyz()->decreased(anOrigin->xyz())->dot(aNormal->xyz());
 990     bool aValid = (fabs(aDot) >= tolerance && fabs(aDot) < 1.0 - tolerance) ||
 991            (fabs(aDot) < tolerance && fabs(aDist) > tolerance);
 992     if (!aValid)
 993       theError = "Error: Edge is already in the sketch plane.";
 994     return aValid;
 995   }
 996   else if (anEdge->isCircle() || anEdge->isArc()) {
 997     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
 998     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
 999     std::shared_ptr<GeomAPI_Pnt> aCircCenter = aCircle->center();
1000     double aDot = fabs(aNormal->dot(aCircNormal));
1001     double aDist = aCircCenter->xyz()->decreased(anOrigin->xyz())->dot(aNormal->xyz());
1002     bool aValid = fabs(aDot - 1.0) < tolerance * tolerance && fabs(aDist) > tolerance;
1003     if (!aValid)
1004       theError.arg(anEdge->isCircle() ? "Error: Cirlce is already in the sketch plane."
1005                                       : "Error: Arc is already in the sketch plane.");
1006     return aValid;
1007   }
1008
1009   theError = "Error: Selected object is not line, circle or arc.";
1010   return false;
1011 }
1012
1013
1014 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1015                                    const std::set<FeaturePtr>& theSet2)
1016 {
1017   std::set<FeaturePtr> aCommon;
1018   if (theSet1.empty() || theSet2.empty())
1019     return aCommon;
1020
1021   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1022   for (; anIt2 != theSet2.end(); ++anIt2)
1023     if (theSet1.find(*anIt2) != theSet1.end())
1024       aCommon.insert(*anIt2);
1025   return aCommon;
1026 }
1027
1028 bool SketchPlugin_DifferentReferenceValidator::isValid(
1029     const AttributePtr& theAttribute,
1030     const std::list<std::string>& theArguments,
1031     Events_InfoMessage& theError) const
1032 {
1033   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1034
1035   int aNbFeaturesReferred = 0;
1036   int aNbAttributesReferred = 0;
1037   std::set<FeaturePtr> aCommonReferredFeatures;
1038
1039   // find all features referred by attributes listed in theArguments
1040   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1041   for (; anArgIt != theArguments.end(); ++anArgIt) {
1042     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1043     if (!aRefAttr)
1044       continue;
1045
1046     std::set<FeaturePtr> aCoincidentFeatures;
1047     if (aRefAttr->isObject()) {
1048       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1049       if (aFeature) {
1050         aCoincidentFeatures.insert(aFeature);
1051         aNbFeaturesReferred += 1;
1052       }
1053     } else {
1054       AttributePoint2DPtr aPoint =
1055           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1056       if (aPoint) {
1057         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1058         aNbAttributesReferred += 1;
1059       }
1060     }
1061
1062     if (aCommonReferredFeatures.empty())
1063       aCommonReferredFeatures = aCoincidentFeatures;
1064     else
1065       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1066
1067     if (aCommonReferredFeatures.empty())
1068       return true;
1069   }
1070
1071   bool isOk = aNbFeaturesReferred < 1;
1072   if (aNbFeaturesReferred == 1) {
1073     if (aCommonReferredFeatures.size() == 1) {
1074       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1075       isOk = aNbAttributesReferred <= 1 ||
1076              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1077              aFeature->getKind() == SketchPlugin_Arc::ID();
1078     } else
1079       isOk = false;
1080   }
1081
1082   if (!isOk)
1083     theError = "Attributes are referred to the same feature";
1084   return isOk;
1085 }
1086
1087 bool SketchPlugin_DifferentPointReferenceValidator::isValid(
1088     const AttributePtr& theAttribute,
1089     const std::list<std::string>& theArguments,
1090     Events_InfoMessage& theError) const
1091 {
1092   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1093   std::set<AttributePoint2DPtr> aReferredCoincidentPoints;
1094
1095   // find all points referred by attributes listed in theArguments
1096   bool hasRefsToPoints = false;
1097   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1098   for (; anArgIt != theArguments.end(); ++anArgIt) {
1099     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1100     if (!aRefAttr)
1101       continue;
1102
1103     if (!aRefAttr->isObject()) {
1104       AttributePoint2DPtr aPoint =
1105           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1106       if (aReferredCoincidentPoints.empty())
1107         aReferredCoincidentPoints = SketchPlugin_Tools::findPointsCoincidentToPoint(aPoint);
1108       else if (aReferredCoincidentPoints.find(aPoint) == aReferredCoincidentPoints.end())
1109         return true; // non-coincident point has been found
1110       else
1111         hasRefsToPoints = true;
1112     }
1113   }
1114
1115   if (hasRefsToPoints)
1116     theError = "Attributes are referred to the same point";
1117   return !hasRefsToPoints;
1118 }
1119
1120 bool SketchPlugin_CirclePassedPointValidator::isValid(
1121     const AttributePtr& theAttribute,
1122     const std::list<std::string>&,
1123     Events_InfoMessage& theError) const
1124 {
1125   static const std::string aErrorMessage(
1126       "Passed point refers to the same feature as a center point");
1127
1128   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1129
1130   AttributeRefAttrPtr aCenterRef =
1131       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1132   AttributeRefAttrPtr aPassedRef =
1133       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1134
1135   if (!aPassedRef->isObject())
1136     return true;
1137
1138   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1139   if (!aPassedFeature)
1140     return true;
1141
1142   if (aCenterRef->isObject()) {
1143     FeaturePtr aCenterFeature = ModelAPI_Feature::feature(aCenterRef->object());
1144     if (aCenterFeature == aPassedFeature) {
1145       theError = aErrorMessage;
1146       return false;
1147     }
1148   } else {
1149     AttributePoint2DPtr aCenterPoint =
1150         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1151     if (aCenterPoint) {
1152       std::set<FeaturePtr> aCoincidentFeatures =
1153           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1154       // check one of coincident features is a feature referred by passed point
1155       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1156       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1157         if (*anIt == aPassedFeature) {
1158           theError = aErrorMessage;
1159           return false;
1160         }
1161     }
1162   }
1163   return true;
1164 }
1165
1166 bool SketchPlugin_ThirdPointValidator::isValid(
1167     const AttributePtr& theAttribute,
1168     const std::list<std::string>& theArguments,
1169     Events_InfoMessage& theError) const
1170 {
1171   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1172   return arePointsNotOnLine(anOwner, theError) &&
1173          arePointsNotSeparated(anOwner, theArguments, theError);
1174 }
1175
1176 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1177                                               const std::string& thePointAttrName,
1178                                               const std::string& theRefPointAttrName)
1179 {
1180   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1181       theMacroCircle->attribute(thePointAttrName));
1182   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1183
1184   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1185   if (aRefAttr) {
1186     if (aRefAttr->isObject()) {
1187       // project a point onto selected feature
1188       std::shared_ptr<SketchPlugin_Feature> aFeature =
1189           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1190           ModelAPI_Feature::feature(aRefAttr->object()));
1191       if (aFeature) {
1192         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1193         std::shared_ptr<GeomAPI_Edge> anEdge =
1194             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1195         if (anEdge) {
1196           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1197           if (anEdge->isLine())
1198             aPoint3D = anEdge->line()->project(aPoint3D);
1199           else if (anEdge->isCircle())
1200             aPoint3D = anEdge->circle()->project(aPoint3D);
1201           if(aPoint3D)
1202             aPoint = aSketch->to2D(aPoint3D);
1203         }
1204       }
1205     } else {
1206       AttributePoint2DPtr anOtherPoint =
1207           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1208       if (anOtherPoint)
1209         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1210     }
1211   }
1212
1213   return aPoint;
1214 }
1215
1216 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1217                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1218 {
1219   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1220     thePoints[0] = toPoint(theMacroFeature,
1221           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1222           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1223     thePoints[1] = toPoint(theMacroFeature,
1224           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1225           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1226     thePoints[2] = toPoint(theMacroFeature,
1227           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1228           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1229   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1230     thePoints[0] = toPoint(theMacroFeature,
1231           SketchPlugin_MacroArc::START_POINT_2_ID(),
1232           SketchPlugin_MacroArc::START_POINT_REF_ID());
1233     thePoints[1] = toPoint(theMacroFeature,
1234           SketchPlugin_MacroArc::END_POINT_2_ID(),
1235           SketchPlugin_MacroArc::END_POINT_REF_ID());
1236     thePoints[2] = toPoint(theMacroFeature,
1237           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1238           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1239   }
1240 }
1241
1242 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1243                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1244                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1245 {
1246   static const double aTolerance = 1.e-7;
1247   if (thePoint1->distance(thePoint2) < aTolerance ||
1248       thePoint1->distance(thePoint3) < aTolerance)
1249     return true;
1250
1251   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1252                                                             thePoint2->y() - thePoint1->y()));
1253   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1254                                                             thePoint3->y() - thePoint1->y()));
1255   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1256 }
1257
1258 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1259                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1260                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1261 {
1262   static const double aTolerance = 1.e-7;
1263   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1264   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1265
1266   std::shared_ptr<GeomAPI_XYZ> aVec1 = thePoint1->xyz()->decreased(aLineLoc);
1267   // the first point is on the line
1268   if (aVec1->squareModulus() < aTolerance * aTolerance)
1269     return false;
1270   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(thePoint1->xyz()->decreased(aLineLoc)));
1271   std::shared_ptr<GeomAPI_XYZ> aVec2 = thePoint1->xyz()->decreased(aLineLoc);
1272   // the second point is on the line
1273   if (aVec2->squareModulus() < aTolerance * aTolerance)
1274     return false;
1275   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(thePoint2->xyz()->decreased(aLineLoc)));
1276
1277   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1278 }
1279
1280 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1281                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1282                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1283 {
1284   static const double aTolerance = 1.e-7;
1285   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1286   double aDistP1C = thePoint1->distance(aCenter);
1287   double aDistP2C = thePoint2->distance(aCenter);
1288   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1289 }
1290
1291 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1292     const FeaturePtr& theMacroFeature,
1293     Events_InfoMessage& theError) const
1294 {
1295   static const std::string aErrorPointsOnLine(
1296       "Selected points are on the same line");
1297
1298   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1299   threePointsOfFeature(theMacroFeature, aPoints);
1300
1301   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1302     theError = aErrorPointsOnLine;
1303     return false;
1304   }
1305   return true;
1306 }
1307
1308 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1309     const FeaturePtr& theMacroFeature,
1310     const std::list<std::string>& theArguments,
1311     Events_InfoMessage& theError) const
1312 {
1313   static const std::string aErrorPointsApart(
1314       "Selected entity is lying between first two points");
1315
1316   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1317   FeaturePtr aRefByThird;
1318   if (aThirdPointRef->isObject())
1319     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1320   if (!aRefByThird)
1321     return true;
1322
1323   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1324   threePointsOfFeature(theMacroFeature, aPoints);
1325
1326   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1327       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1328   if (!aThirdShape)
1329     return true;
1330
1331   SketchPlugin_Sketch* aSketch =
1332       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1333   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1334   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1335
1336   bool isOk = true;
1337   if (aThirdShape->isLine())
1338     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1339   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1340     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1341
1342   if (!isOk)
1343     theError = aErrorPointsApart;
1344   return isOk;
1345 }
1346
1347 bool SketchPlugin_ArcEndPointValidator::isValid(
1348     const AttributePtr& theAttribute,
1349     const std::list<std::string>& theArguments,
1350     Events_InfoMessage& theError) const
1351 {
1352   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1353   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1354
1355   if(!anEndPointRef.get()) {
1356     return true;
1357   }
1358
1359   ObjectPtr anObject = anEndPointRef->object();
1360   AttributePtr anAttr = anEndPointRef->attr();
1361   if(!anObject.get() && !anAttr.get()) {
1362     return true;
1363   }
1364
1365   if(anEndPointRef->attr().get()) {
1366     return false;
1367   }
1368
1369   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1370   if(aResult.get()) {
1371     GeomShapePtr aShape = aResult->shape();
1372     if(aShape.get() && aShape->isVertex()) {
1373       return false;
1374     }
1375   }
1376
1377   aFeature = ModelAPI_Feature::feature(anObject);
1378   if(aFeature.get()) {
1379     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1380       return false;
1381     }
1382   }
1383
1384   return true;
1385 }
1386
1387 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1388 {
1389   if(!theShape.get()) {
1390     return theShape;
1391   }
1392
1393   if(!theShape->isEdge()) {
1394     return theShape;
1395   }
1396
1397   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1398
1399   if(!anEdge.get()) {
1400     return theShape;
1401   }
1402
1403   if(anEdge->isLine()) {
1404     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1405     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1406     return aShape;
1407   }
1408
1409   if(anEdge->isCircle() || anEdge->isArc()) {
1410     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1411     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1412     return aShape;
1413   }
1414
1415   return theShape;
1416 }
1417
1418 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1419     const AttributePtr& theAttribute,
1420     const std::list<std::string>& theArguments,
1421     Events_InfoMessage& theError) const
1422 {
1423   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1424       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1425   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1426
1427   if(!anEndPointRef.get()) {
1428     return true;
1429   }
1430
1431   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1432
1433   if(!anArcShape.get() || anArcShape->isNull()) {
1434     return true;
1435   }
1436
1437   ObjectPtr anObject = anEndPointRef->object();
1438   AttributePtr anAttr = anEndPointRef->attr();
1439   if(!anObject.get() && !anAttr.get()) {
1440     return true;
1441   }
1442
1443   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1444   if(aResult.get()) {
1445     GeomShapePtr aShape = toInfiniteEdge(aResult->shape());
1446     if(aShape.get() && !aShape->isNull()) {
1447       if(anArcShape->isIntersect(aShape)) {
1448         return true;
1449       }
1450     }
1451   }
1452
1453   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1454   if(aSelectedFeature.get()) {
1455     std::list<ResultPtr> aResults = aSelectedFeature->results();
1456     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1457         anIt != aResults.cend();
1458         ++anIt)
1459     {
1460       GeomShapePtr aShape = toInfiniteEdge((*anIt)->shape());
1461       if(aShape.get() && !aShape->isNull()) {
1462         if(anArcShape->isIntersect(aShape)) {
1463           return true;
1464         }
1465       }
1466     }
1467   }
1468
1469   return false;
1470 }