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