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_Fillet.h"
  14 #include "SketchPlugin_ConstraintRigid.h"
  15 #include "SketchPlugin_ConstraintTangent.h"
  16 #include "SketchPlugin_Line.h"
  17 #include "SketchPlugin_Point.h"
  18 #include "SketchPlugin_Sketch.h"
  19 #include "SketchPlugin_Trim.h"
  20 #include "SketchPlugin_Tools.h"
  21
  22 #include "SketcherPrs_Tools.h"
  23
  24 #include <Events_InfoMessage.h>
  25
  26 #include <ModelAPI_Data.h>
  27 #include <ModelAPI_Validator.h>
  28 #include <ModelAPI_AttributeDouble.h>
  29 #include <ModelAPI_AttributeRefAttr.h>
  30
  31 #include <ModelAPI_AttributeRefAttrList.h>
  32 #include <ModelAPI_AttributeRefList.h>
  33 #include <ModelAPI_AttributeSelectionList.h>
  34 #include <ModelAPI_AttributeString.h>
  35 #include <ModelAPI_Session.h>
  36 #include <ModelAPI_Tools.h>
  37 #include <ModelAPI_ResultConstruction.h>
  38
  39 #include <ModelGeomAlgo_Point2D.h>
  40 #include <ModelGeomAlgo_Shape.h>
  41
  42 #include <GeomAPI_Circ.h>
  43 #include <GeomAPI_Lin.h>
  44 #include <GeomAPI_Edge.h>
  45 #include <GeomAPI_Vertex.h>
  46 #include <GeomDataAPI_Point2D.h>
  47
  48 #include <algorithm>
  49 #include <cmath>
  50
  51 const double tolerance = 1.e-7;
  52
  53 bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute,
  54                                                  const std::list<std::string>& theArguments,
  55                                                  Events_InfoMessage& theError) const
  56 {
  57   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
  58     theError = "The attribute with the %1 type is not processed";
  59     theError.arg(theAttribute->attributeType());
  60     return false;
  61   }
  62
  63   // there is a check whether the feature contains a point and a linear edge or two point values
  64   std::string aParamA = theArguments.front();
  65   SessionPtr aMgr = ModelAPI_Session::get();
  66   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
  67
  68   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
  69                                                                       (theAttribute);
  70   bool isObject = aRefAttr->isObject();
  71   if (!isObject) {
  72     // an attribute is a point. A point value is valid always for the distance
  73     return true;
  74   } else {
  75     // 1. check whether the references object is a linear
  76     ObjectPtr anObject = aRefAttr->object();
  77
  78     const ModelAPI_AttributeValidator* aShapeValidator =
  79       dynamic_cast<const ModelAPI_AttributeValidator*>(
  80       aFactory->validator("GeomValidators_ShapeType"));
  81     std::list<std::string> anArguments;
  82     anArguments.push_back("circle");
  83     Events_InfoMessage aCircleError;
  84     bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
  85     // the circle line is not a valid case
  86     if (aShapeValid) {
  87       theError = "Circle can not be used in distance constraint";
  88       return false;
  89     }
  90
  91     anArguments.clear();
  92     anArguments.push_back("line");
  93     Events_InfoMessage aLineError;
  94     aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
  95     // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
  96     if (aShapeValid) {
  97       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
  98       // If it is a line then we have to check that first attribute id not a line
  99       std::shared_ptr<SketchPlugin_Feature> aSFeature =
 100         std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 101       SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 102       std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
 103       std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
 104         aFeature->data(), aParamA, aPlane);
 105       if (!aPoint.get()) {
 106         theError = "One of parameters of distance constraint should be a point";
 107         return false;
 108       }
 109     }
 110   }
 111   return true;
 112 }
 113
 114 bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute,
 115                                                 const std::list<std::string>& theArguments,
 116                                                 Events_InfoMessage& theError) const
 117 {
 118   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 119     theError = "The attribute with the %1 type is not processed";
 120     theError.arg(theAttribute->attributeType());
 121     return false;
 122   }
 123
 124   // there is a check whether the feature contains a point and a linear edge or two point values
 125   std::string aParamA = theArguments.front();
 126   SessionPtr aMgr = ModelAPI_Session::get();
 127   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 128
 129   FeaturePtr anAttributeFeature =
 130     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 131   AttributeRefAttrPtr aRefAttr =
 132     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 133
 134   bool isObject = aRefAttr->isObject();
 135   ObjectPtr anObject = aRefAttr->object();
 136   if (isObject && anObject.get()) {
 137     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 138
 139     AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 140     ObjectPtr aOtherObject = aOtherAttr->object();
 141     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 142     if (!aOtherFea)
 143       return true;
 144
 145     if (aRefFea->getKind() == SketchPlugin_Line::ID()) {
 146       if (aOtherFea->getKind() != SketchPlugin_Arc::ID() &&
 147           aOtherFea->getKind() != SketchPlugin_Circle::ID()) {
 148         theError = "It refers to a %1, but %2 is neither an %3 nor %4";
 149         theError.arg(SketchPlugin_Line::ID()).arg(aParamA)
 150             .arg(SketchPlugin_Arc::ID()).arg(SketchPlugin_Circle::ID());
 151         return false;
 152       }
 153     }
 154     else if (aRefFea->getKind() == SketchPlugin_Arc::ID() ||
 155              aRefFea->getKind() == SketchPlugin_Circle::ID()) {
 156       if (aOtherFea->getKind() != SketchPlugin_Line::ID() &&
 157           aOtherFea->getKind() != SketchPlugin_Arc::ID() &&
 158           aOtherFea->getKind() != SketchPlugin_Circle::ID()) {
 159         theError = "It refers to an %1, but %2 is not a %3 or an %4 or a %5";
 160         theError.arg(SketchPlugin_Arc::ID()).arg(aParamA)
 161             .arg(SketchPlugin_Line::ID()).arg(SketchPlugin_Arc::ID())
 162             .arg(SketchPlugin_Circle::ID());
 163         return false;
 164       }
 165     }
 166     else {
 167       theError = "It refers to %1, but should refer to %2 or %3 or %4";
 168       theError.arg(aRefFea->getKind()).arg(SketchPlugin_Line::ID())
 169           .arg(SketchPlugin_Arc::ID()).arg(SketchPlugin_Circle::ID());
 170       return false;
 171     }
 172     return true;
 173   }
 174   else {
 175     theError = "It uses an empty object";
 176     return false;
 177   }
 178
 179   return true;
 180 }
 181
 182 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 183                                              const std::list<std::string>& theArguments,
 184                                              Events_InfoMessage& theError) const
 185 {
 186   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 187     theError = "The attribute with the %1 type is not processed";
 188     theError.arg(theAttribute->attributeType());
 189     return false;
 190   }
 191
 192   std::shared_ptr<SketchPlugin_Feature> aFeature =
 193       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 194   if (!aFeature)
 195     return true;
 196
 197   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 198
 199   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 200   int aNbFeatures = aSketch->numberOfSubs();
 201   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 202     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 203     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 204       continue;
 205     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 206         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 207     if (aRefAttr->isObject()) {
 208       if (aRefAttr->object() == aRAttr->object()) {
 209         ObjectPtr anObject = aRefAttr->object();
 210         std::string aName = anObject.get() ? anObject->data()->name() : "";
 211         theError = "The object %1 has been already fixed.";
 212         theError.arg(aName);
 213         return false;
 214       }
 215     }
 216     else if (aRefAttr->attr() == aRAttr->attr()) {
 217       AttributePtr anAttribute = aRefAttr->attr();
 218       std::string aName = anAttribute.get() ? anAttribute->id() : "";
 219       theError = "The attribute %1 has been already fixed.";
 220       theError.arg(aName);
 221       return false;
 222     }
 223   }
 224   return true;
 225 }
 226
 227 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 228                                               const std::list<std::string>& theArguments,
 229                                               Events_InfoMessage& theError) const
 230 {
 231   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 232     theError = "The attribute with the %1 type is not processed";
 233     theError.arg(theAttribute->attributeType());
 234     return false;
 235   }
 236
 237   std::string aParamA = theArguments.front();
 238   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 239   AttributeRefAttrPtr aRefAttr[2];
 240   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 241   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 242
 243   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 244     theError = "Attributes can not be used in equal constraint";
 245     return false;
 246   }
 247
 248   std::string aType[2];
 249   std::list<std::string> anArguments;
 250   for (int i = 0; i < 2; i++) {
 251     ObjectPtr anObject = aRefAttr[i]->object();
 252     if (!anObject.get()) {
 253       theError = "An empty object is used.";
 254       return false;
 255     }
 256
 257     aFeature = ModelAPI_Feature::feature(anObject);
 258     if (!aFeature.get()) {
 259       theError = "An empty feature is used.";
 260       return false;
 261     }
 262
 263     aType[i] = aFeature->getKind();
 264     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 265         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 266         aFeature->getKind() != SketchPlugin_Arc::ID()) {
 267       theError = "The %1 feature kind of attribute is wrong. It should be %2 or %3 or %4";
 268       theError.arg(aFeature->getKind()).arg(SketchPlugin_Line::ID())
 269           .arg(SketchPlugin_Circle::ID()).arg(SketchPlugin_Arc::ID());
 270       // wrong type of attribute
 271       return false;
 272     }
 273   }
 274
 275   if ((aType[0] == SketchPlugin_Line::ID() || aType[1] == SketchPlugin_Line::ID()) &&
 276       aType[0] != aType[1]) {
 277     theError = "Feature with kinds %1 and %2 can not be equal.";
 278     theError.arg(aType[0]).arg(aType[1]);
 279     return false;
 280   }
 281   return true;
 282 }
 283
 284 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 285                                                const std::list<std::string>& theArguments,
 286                                                Events_InfoMessage& theError) const
 287 {
 288   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 289     theError = "The attribute with the %1 type is not processed";
 290     theError.arg(theAttribute->attributeType());
 291     return false;
 292   }
 293
 294   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 295   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 296
 297   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 298       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 299   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 300
 301   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 302     ObjectPtr aSelObject = aSelAttr->object(anInd);
 303     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 304     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 305     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 306       if (aSelObject == *aMirIter) {
 307         theError = "The object %1 is a result of mirror";
 308         theError.arg(aName);
 309         return false;
 310       }
 311   }
 312   return true;
 313 }
 314
 315 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 316                                                     const std::list<std::string>& theArguments,
 317                                                     Events_InfoMessage& theError) const
 318 {
 319   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 320     theError = "The attribute with the %1 type is not processed";
 321     theError.arg(theAttribute->attributeType());
 322     return false;
 323   }
 324
 325   // there is a check whether the feature contains a point and a linear edge or two point values
 326   std::string aParamA = theArguments.front();
 327   SessionPtr aMgr = ModelAPI_Session::get();
 328   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 329
 330   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 331   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 332   if (!aRefAttrA) {
 333     theError = "The %1 attribute should be %2";
 334     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 335     return false;
 336   }
 337
 338   AttributeRefAttrPtr aRefAttrB =
 339     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 340
 341   // first attribute is a point, it may coincide with any object
 342   if (!aRefAttrA->isObject())
 343     return true;
 344   else {
 345     ObjectPtr anObject = aRefAttrA->object();
 346     if (!anObject.get()) {
 347       theError = "%1 attribute has an empty object";
 348       theError.arg(aParamA);
 349       return false;
 350     }
 351     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 352     if (!aFeature.get()) {
 353       theError = "%1 attribute has an empty feature";
 354       theError.arg(aParamA);
 355       return false;
 356     }
 357
 358     if (aFeature->getKind() == SketchPlugin_Point::ID())
 359       return true;
 360   }
 361
 362   // second attribute is a point, it may coincide with any object
 363   if (!aRefAttrB->isObject())
 364     return true;
 365   else {
 366     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 367     if (!aFeature) {
 368       theError = "%1 attribute has an empty object";
 369       theError.arg(theAttribute->id());
 370       return false;
 371     }
 372     if (aFeature->getKind() == SketchPlugin_Point::ID())
 373       return true;
 374   }
 375   theError = "There is no an attribute filled by a point";
 376   return false;
 377 }
 378
 379
 380 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 381                                          const std::list<std::string>& theArguments,
 382                                          Events_InfoMessage& theError) const
 383 {
 384   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 385     theError = "The attribute with the %1 type is not processed";
 386     theError.arg(theAttribute->attributeType());
 387     return false;
 388   }
 389
 390   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 391   AttributeRefListPtr aSelAttr =
 392     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 393
 394   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 395       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 396   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 397       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 398   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 399   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 400
 401   std::list<ObjectPtr>::iterator anObjIter;
 402   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 403     ObjectPtr aSelObject = aSelAttr->object(anInd);
 404     anObjIter = anInitialObjects.begin();
 405     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 406       if (aSelObject == *anObjIter)
 407         break;
 408     if (anObjIter != anInitialObjects.end())
 409       continue;
 410     anObjIter = aCopiedObjects.begin();
 411     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 412       if (aSelObject == *anObjIter) {
 413         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 414         theError = "The object %1 is a result of copy";
 415         theError.arg(aName);
 416         return false;
 417       }
 418   }
 419   return true;
 420 }
 421
 422 bool SketchPlugin_SolverErrorValidator::isValid(
 423   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 424   const std::list<std::string>& theArguments,
 425   Events_InfoMessage& theError) const
 426 {
 427   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 428
 429   if (!aAttributeString->value().empty()) {
 430     theError = aAttributeString->value();
 431     return false;
 432   }
 433
 434   return true;
 435 }
 436
 437 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 438                                                         std::string theAttribute)
 439 {
 440   return true;
 441 }
 442
 443 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 444                                   const FeaturePtr theFeature)
 445 {
 446   for(std::set<AttributePtr>::const_iterator
 447       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 448     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 449     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 450     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 451       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 452         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 453       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 454         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 455       if(anAttrRefA.get()) {
 456         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 457         if(aResA.get()) {
 458           DocumentPtr aDoc = aResA->document();
 459           if(aDoc.get()) {
 460             FeaturePtr aFeatureA = aDoc->feature(aResA);
 461             if(aFeatureA.get() && aFeatureA == theFeature) {
 462               return true;
 463             }
 464           }
 465         }
 466       }
 467       if(anAttrRefB.get()) {
 468         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 469         if(aResB.get()) {
 470           DocumentPtr aDoc = aResB->document();
 471           if(aDoc.get()) {
 472             FeaturePtr aFeatureB = aDoc->feature(aResB);
 473             if(aFeatureB.get() && aFeatureB == theFeature) {
 474               return true;
 475             }
 476           }
 477         }
 478       }
 479     }
 480   }
 481   return false;
 482 }
 483
 484 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 485                                                  const std::list<std::string>& theArguments,
 486                                                  Events_InfoMessage& theError) const
 487 {
 488   AttributeRefAttrPtr aPointRefAttr =
 489     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 490   if(!aPointRefAttr.get()) {
 491     theError = "Error: Point not selected.";
 492     return false;
 493   }
 494
 495   AttributePtr aPointAttribute = aPointRefAttr->attr();
 496   if (!aPointAttribute.get()) {
 497     theError = "Error: Bad point selected.";
 498     return false;
 499   }
 500   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 501     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 502
 503   // Obtain constraint coincidence for the fillet point.
 504   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 505   FeaturePtr aConstraintCoincidence;
 506   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 507       anIt != aRefsList.cend(); ++anIt) {
 508     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 509     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 510     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 511       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 512         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 513       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 514         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 515       if(anAttrRefA.get() && !anAttrRefA->isObject()) {
 516         AttributePtr anAttrA = anAttrRefA->attr();
 517         if(aPointAttribute == anAttrA) {
 518           aConstraintCoincidence = aConstrFeature;
 519           break;
 520         }
 521       }
 522       if(anAttrRefB.get() && !anAttrRefB->isObject()) {
 523         AttributePtr anAttrB = anAttrRefB->attr();
 524         if(aPointAttribute == anAttrB) {
 525           aConstraintCoincidence = aConstrFeature;
 526           break;
 527         }
 528       }
 529     }
 530   }
 531
 532   if(!aConstraintCoincidence.get()) {
 533     theError = "Error: one of the selected point does not have coicidence.";
 534     return false;
 535   }
 536
 537   // Get coincides from constraint.
 538   std::set<FeaturePtr> aCoinsides;
 539   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 540                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 541                                         aCoinsides);
 542   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 543                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 544                                         aCoinsides);
 545
 546   // Remove points from set of coincides.
 547   std::set<FeaturePtr> aNewSetOfCoincides;
 548   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 549       anIt != aCoinsides.end(); ++anIt) {
 550     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 551       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 552     if(aSketchEntity.get() && aSketchEntity->isCopy()) {
 553       continue;
 554     }
 555     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 556         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 557           continue;
 558     }
 559     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 560       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 561       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 562         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 563       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 564       if(aDistSelectedArcCenter < tolerance) {
 565         continue;
 566       }
 567     }
 568     aNewSetOfCoincides.insert(*anIt);
 569   }
 570   aCoinsides = aNewSetOfCoincides;
 571
 572   // If we still have more than two coincides remove auxilary entities from set of coincides.
 573   if(aCoinsides.size() > 2) {
 574     aNewSetOfCoincides.clear();
 575     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 576         anIt != aCoinsides.end(); ++anIt) {
 577       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 578         aNewSetOfCoincides.insert(*anIt);
 579       }
 580     }
 581     aCoinsides = aNewSetOfCoincides;
 582   }
 583
 584   if(aCoinsides.size() != 2) {
 585     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 586     return false;
 587   }
 588
 589   // Check that selected edges don't have tangent constraint.
 590   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 591   FeaturePtr aFirstFeature = *anIt++;
 592   FeaturePtr aSecondFeature = *anIt;
 593   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 594   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 595     theError = "Error: Edges in selected point has tangent constraint.";
 596     return false;
 597   }
 598
 599   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 600   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 601       aResIt != aFirstResults.end(); ++aResIt) {
 602     ResultPtr aRes = *aResIt;
 603     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 604     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 605       theError = "Error: Edges in selected point has tangent constraint.";
 606       return false;
 607     }
 608   }
 609
 610   // Check that lines not collinear
 611   if(aFirstFeature->getKind() == SketchPlugin_Line::ID() &&
 612       aSecondFeature->getKind() == SketchPlugin_Line::ID()) {
 613     std::string aStartAttr = SketchPlugin_Line::START_ID();
 614     std::string anEndAttr = SketchPlugin_Line::END_ID();
 615     std::shared_ptr<GeomAPI_Pnt2d> aFirstStartPnt, aFirstEndPnt, aSecondStartPnt, aSecondEndPnt;
 616     aFirstStartPnt =
 617       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 618       aFirstFeature->attribute(aStartAttr))->pnt();
 619     aFirstEndPnt =
 620       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aFirstFeature->attribute(anEndAttr))->pnt();
 621     aSecondStartPnt =
 622       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 623       aSecondFeature->attribute(aStartAttr))->pnt();
 624     aSecondEndPnt =
 625       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 626       aSecondFeature->attribute(anEndAttr))->pnt();
 627     double aCheck1 =
 628       fabs((aFirstEndPnt->x() - aFirstStartPnt->x()) *
 629       (aSecondStartPnt->y() - aFirstStartPnt->y()) -
 630       (aSecondStartPnt->x() - aFirstStartPnt->x()) * (aFirstEndPnt->y() - aFirstStartPnt->y()));
 631     double aCheck2 =
 632       fabs((aFirstEndPnt->x() - aFirstStartPnt->x()) *
 633       (aSecondEndPnt->y() - aFirstStartPnt->y()) -
 634       (aSecondEndPnt->x() - aFirstStartPnt->x()) * (aFirstEndPnt->y() - aFirstStartPnt->y()));
 635     if(aCheck1 < 1.e-7 && aCheck2 < 1.e-7) {
 636       return false;
 637     }
 638   }
 639
 640
 641   return true;
 642 }
 643
 644 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 645                                                     const std::list<std::string>& theArguments,
 646                                                     Events_InfoMessage& theError) const
 647 {
 648   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 649     theError = "The attribute with the %1 type is not processed";
 650     theError.arg(theAttribute->attributeType());
 651     return false;
 652   }
 653
 654   // there is a check whether the feature contains a point and a linear edge or two point values
 655   std::string aParamA = theArguments.front();
 656   SessionPtr aMgr = ModelAPI_Session::get();
 657   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 658
 659   FeaturePtr anAttributeFeature =
 660     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 661   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 662   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 663
 664   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 665   int aNbPoints = 0;
 666   int aNbLines = 0;
 667   for (int i = 0; i < 2; ++i) {
 668     if (!aRefAttrs[i]->isObject())
 669       ++aNbPoints;
 670     else {
 671       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 672       if (!aFeature) {
 673         if (aNbPoints + aNbLines != 0)
 674           return true;
 675         else continue;
 676       }
 677
 678       if (aFeature->getKind() == SketchPlugin_Point::ID())
 679         ++aNbPoints;
 680       else if (aFeature->getKind() == SketchPlugin_Line::ID())
 681         ++aNbLines;
 682     }
 683   }
 684
 685   if (aNbPoints != 1 || aNbLines != 1) {
 686     theError = "Middle point constraint allows points and lines only";
 687     return false;
 688   }
 689   return true;
 690 }
 691
 692 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 693                                                     const std::list<std::string>& /*theArguments*/,
 694                                                     Events_InfoMessage& theError) const
 695 {
 696   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 697     theError = "The attribute with the %1 type is not processed";
 698     theError.arg(theAttribute->attributeType());
 699     return false;
 700   }
 701   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 702   AttributePtr anAttr = aRefAttr->attr();
 703   if (!anAttr) {
 704     theError = "The attribute %1 should be a point";
 705     theError.arg(theAttribute->id());
 706     return false;
 707   }
 708
 709   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 710   const std::string& aFeatureType = anAttrFeature->getKind();
 711   if (aFeatureType == SketchPlugin_Arc::ID()) {
 712     // selected point should not be a center of arc
 713     const std::string& aPntId = anAttr->id();
 714     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 715       theError = "The attribute %1 is not supported";
 716       theError.arg(aPntId);
 717       return false;
 718     }
 719   }
 720   else if (aFeatureType == SketchPlugin_Line::ID()) {
 721     // selected point should be bound point of line
 722     const std::string& aPntId = anAttr->id();
 723     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 724       theError = "The attribute %1 is not supported";
 725       theError.arg(aPntId);
 726       return false;
 727     }
 728   }
 729   else {
 730     theError = "Unable to build tangent arc on %1";
 731     theError.arg(anAttrFeature->getKind());
 732     return false;
 733   }
 734
 735   // Check the tangent point is equal to arc end
 736   FeaturePtr anArc = std::dynamic_pointer_cast<ModelAPI_Feature>(aRefAttr->owner());
 737   std::shared_ptr<GeomDataAPI_Point2D> anEndPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 738       anArc->attribute(SketchPlugin_Arc::END_ID()));
 739   if (anEndPoint->isInitialized()) {
 740     std::shared_ptr<GeomDataAPI_Point2D> aTangPt =
 741         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr);
 742     if (aTangPt->pnt()->distance(anEndPoint->pnt()) < tolerance) {
 743       theError = "Unable to build arc on same points";
 744       return false;
 745     }
 746   }
 747
 748   return true;
 749 }
 750
 751 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 752                                                  const std::list<std::string>& theArguments,
 753                                                  Events_InfoMessage& theError) const
 754 {
 755   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 756     theError = "The attribute with the %1 type is not processed";
 757     theError.arg(theAttribute->attributeType());
 758     return false;
 759   }
 760   AttributeSelectionPtr aLineAttr =
 761                        std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 762   std::shared_ptr<GeomAPI_Edge> anEdge;
 763   if(aLineAttr && aLineAttr->value() && aLineAttr->value()->isEdge()) {
 764     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aLineAttr->value()));
 765   } else if(aLineAttr->context() &&
 766             aLineAttr->context()->shape() && aLineAttr->context()->shape()->isEdge()) {
 767     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aLineAttr->context()->shape()));
 768   }
 769
 770   if (!anEdge || !anEdge->isLine()) {
 771     theError = "The attribute %1 should be a line";
 772     theError.arg(theAttribute->id());
 773     return false;
 774   }
 775
 776   std::shared_ptr<GeomAPI_Dir> aLineDir = anEdge->line()->direction();
 777
 778   // find a sketch
 779   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 780   std::set<AttributePtr> aRefs = aLineAttr->owner()->data()->refsToMe();
 781   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 782   for (; anIt != aRefs.end(); ++anIt) {
 783     CompositeFeaturePtr aComp =
 784         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 785     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 786       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 787       break;
 788     }
 789   }
 790   if (!aSketch) {
 791     theError = "There is no sketch referring to the current feature";
 792     return false;
 793   }
 794
 795   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 796   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
 797   return fabs(aNormal->dot(aLineDir)) > tolerance * tolerance;
 798 }
 799
 800 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
 801                                           const std::list<std::string>& theArguments,
 802                                           Events_InfoMessage& theError) const
 803 {
 804   bool aValid = false;
 805
 806   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 807     theError = "The attribute with the %1 type is not processed";
 808     theError.arg(theAttribute->attributeType());
 809     return aValid;
 810   }
 811   AttributeReferencePtr aFeatureAttr =
 812             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 813
 814   ObjectPtr anAttrObject = aFeatureAttr->value();
 815   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
 816   if (!anAttrFeature)
 817     return aValid;
 818
 819   std::string aKind = anAttrFeature->getKind();
 820   if (aKind == SketchPlugin_Line::ID() ||
 821       aKind == SketchPlugin_Arc::ID() ||
 822       aKind == SketchPlugin_Circle::ID()) {
 823
 824     std::set<ResultPtr> anEdgeShapes;
 825     ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
 826     if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
 827       return aValid;
 828
 829     // coincidences to the feature
 830     std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
 831     ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
 832                         SketchPlugin_ConstraintCoincidence::ID(),
 833                         aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
 834
 835     GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
 836     std::shared_ptr<SketchPlugin_Feature> aSFeature =
 837                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
 838     SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 839
 840     std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
 841     std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
 842         aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 843     std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 844         aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
 845     std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 846         aData->attribute(SketchPlugin_Sketch::NORM_ID()));
 847     std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
 848
 849     typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
 850                      std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 851                                std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
 852     PointToRefsMap aPointsInfo;
 853
 854     ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
 855                                                 aX->dir(), aDirY, aPointsInfo);
 856     int aCoincidentToFeature = (int)aPointsInfo.size();
 857     if (aKind == SketchPlugin_Circle::ID())
 858       aValid = aCoincidentToFeature >= 2;
 859     else
 860       aValid = aCoincidentToFeature >= 1;
 861   }
 862
 863   return aValid;
 864 }
 865
 866 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
 867                                          const std::list<std::string>& theArguments,
 868                                          Events_InfoMessage& theError) const
 869 {
 870   bool aValid = false;
 871
 872   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 873     theError = "The attribute with the %1 type is not processed";
 874     theError.arg(theAttribute->attributeType());
 875     return aValid;
 876   }
 877   AttributeReferencePtr aBaseObjectAttr =
 878             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 879
 880   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
 881                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 882
 883   ObjectPtr aBaseObject = aBaseObjectAttr->value();
 884   if (!aBaseObject) {
 885     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
 886     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
 887     aBaseObject = aBaseObjectAttr->value();
 888
 889     //return aValid;
 890   }
 891
 892   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
 893   if (!aBaseFeature)
 894     return aValid;
 895
 896   std::string aKind = aBaseFeature->getKind();
 897   if (aKind != SketchPlugin_Line::ID() &&
 898       aKind != SketchPlugin_Arc::ID() &&
 899       aKind != SketchPlugin_Circle::ID())
 900     return aValid;
 901
 902   // point on feature
 903   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 904                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
 905
 906   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
 907
 908   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
 909   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
 910                                                               anAttributePnt2d->y());
 911
 912   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
 913   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
 914            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 915                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
 916   SketchPlugin_Trim::fillObjectShapes(aBaseObject, aSketch->data()->owner(),
 917                                       aCashedShapes, anObjectToPoints);
 918   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
 919
 920   return aShapes.size() > 1;
 921 }
 922
 923 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
 924                                                const std::list<std::string>& theArguments,
 925                                                Events_InfoMessage& theError) const
 926 {
 927   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 928     theError = "The attribute with the %1 type is not processed";
 929     theError.arg(theAttribute->attributeType());
 930     return false;
 931   }
 932
 933   AttributeSelectionPtr aFeatureAttr =
 934       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 935   std::shared_ptr<GeomAPI_Edge> anEdge;
 936   if (aFeatureAttr.get()) {
 937     GeomShapePtr aVal = aFeatureAttr->value();
 938     ResultPtr aRes = aFeatureAttr->context();
 939     if(aFeatureAttr->value() && aFeatureAttr->value()->isEdge()) {
 940       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
 941     } else if(aFeatureAttr->context() && aFeatureAttr->context()->shape() &&
 942               aFeatureAttr->context()->shape()->isEdge()) {
 943       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
 944     }
 945   }
 946   if (!anEdge) {
 947     theError = "The attribute %1 should be an edge";
 948     theError.arg(theAttribute->id());
 949     return false;
 950   }
 951
 952   // find a sketch
 953   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 954   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
 955   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 956   for (; anIt != aRefs.end(); ++anIt) {
 957     CompositeFeaturePtr aComp =
 958         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 959     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 960       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 961       break;
 962     }
 963   }
 964   if (!aSketch) {
 965     theError = "There is no sketch referring to the current feature";
 966     return false;
 967   }
 968
 969   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 970   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
 971   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
 972
 973   if (anEdge->isLine()) {
 974     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
 975     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
 976     std::shared_ptr<GeomAPI_Pnt> aLineLoc = aLine->location();
 977     double aDot = aNormal->dot(aLineDir);
 978     double aDist = aLineLoc->xyz()->decreased(anOrigin->xyz())->dot(aNormal->xyz());
 979     bool aValid = (fabs(aDot) >= tolerance && fabs(aDot) < 1.0 - tolerance) ||
 980            (fabs(aDot) < tolerance && fabs(aDist) > tolerance);
 981     if (!aValid)
 982       theError = "Error: Edge is already in the sketch plane.";
 983     return aValid;
 984   }
 985   else if (anEdge->isCircle() || anEdge->isArc()) {
 986     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
 987     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
 988     std::shared_ptr<GeomAPI_Pnt> aCircCenter = aCircle->center();
 989     double aDot = fabs(aNormal->dot(aCircNormal));
 990     double aDist = aCircCenter->xyz()->decreased(anOrigin->xyz())->dot(aNormal->xyz());
 991     bool aValid = fabs(aDot - 1.0) < tolerance * tolerance && fabs(aDist) > tolerance;
 992     if (!aValid)
 993       theError.arg(anEdge->isCircle() ? "Error: Cirlce is already in the sketch plane."
 994                                       : "Error: Arc is already in the sketch plane.");
 995     return aValid;
 996   }
 997
 998   theError = "Error: Selected object is not line, circle or arc.";
 999   return false;
1000 }