src/SketchPlugin/SketchPlugin_Tools.cpp

   1 // Copyright (C) 2014-2017  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 #include "SketchPlugin_Tools.h"
  22
  23 #include "SketchPlugin_ConstraintCoincidence.h"
  24 #include "SketchPlugin_ConstraintTangent.h"
  25 #include "SketchPlugin_Point.h"
  26 #include "SketchPlugin_SketchEntity.h"
  27
  28 #include <SketcherPrs_Tools.h>
  29
  30 #include <ModelAPI_AttributeDouble.h>
  31
  32 #include <GeomDataAPI_Point.h>
  33 #include <GeomDataAPI_Point2D.h>
  34
  35 namespace SketchPlugin_Tools {
  36
  37 void clearExpressions(AttributeDoublePtr theAttribute)
  38 {
  39   theAttribute->setText(std::string());
  40 }
  41
  42 void clearExpressions(AttributePointPtr theAttribute)
  43 {
  44   theAttribute->setText(std::string(), std::string(), std::string());
  45 }
  46
  47 void clearExpressions(AttributePoint2DPtr theAttribute)
  48 {
  49   theAttribute->setText(std::string(), std::string());
  50 }
  51
  52 void clearExpressions(AttributePtr theAttribute)
  53 {
  54   // Double
  55   AttributeDoublePtr anAttributeDouble =
  56       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
  57   if (anAttributeDouble.get())
  58     clearExpressions(anAttributeDouble);
  59   // Point
  60   AttributePointPtr anAttributePoint =
  61       std::dynamic_pointer_cast<GeomDataAPI_Point>(theAttribute);
  62   if (anAttributePoint.get())
  63     clearExpressions(anAttributePoint);
  64   // Point2D
  65   AttributePoint2DPtr anAttributePoint2D =
  66       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(theAttribute);
  67   if (anAttributePoint2D.get())
  68     clearExpressions(anAttributePoint2D);
  69 }
  70
  71 void clearExpressions(FeaturePtr theFeature)
  72 {
  73   if (!theFeature.get())
  74     return;
  75
  76   std::list<AttributePtr> anAttributes = theFeature->data()->attributes(std::string());
  77   std::list<AttributePtr>::iterator anAttributeIt = anAttributes.begin();
  78   for (; anAttributeIt != anAttributes.end(); ++anAttributeIt) {
  79     clearExpressions(*anAttributeIt);
  80   }
  81 }
  82
  83 std::shared_ptr<GeomAPI_Pnt2d> getCoincidencePoint(const FeaturePtr theStartCoin)
  84 {
  85   std::shared_ptr<GeomAPI_Pnt2d> aPnt = SketcherPrs_Tools::getPoint(theStartCoin.get(),
  86                                                           SketchPlugin_Constraint::ENTITY_A());
  87   if (aPnt.get() == NULL)
  88     aPnt = SketcherPrs_Tools::getPoint(theStartCoin.get(), SketchPlugin_Constraint::ENTITY_B());
  89   return aPnt;
  90 }
  91
  92 std::set<FeaturePtr> findCoincidentConstraints(const FeaturePtr& theFeature)
  93 {
  94   std::set<FeaturePtr> aCoincident;
  95   const std::set<AttributePtr>& aRefsList = theFeature->data()->refsToMe();
  96   std::set<AttributePtr>::const_iterator aIt;
  97   for (aIt = aRefsList.cbegin(); aIt != aRefsList.cend(); ++aIt) {
  98     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>((*aIt)->owner());
  99     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID())
 100       aCoincident.insert(aConstrFeature);
 101   }
 102   return aCoincident;
 103 }
 104
 105 void findCoincidences(const FeaturePtr theStartCoin,
 106                       const std::string& theAttr,
 107                       std::set<FeaturePtr>& theList,
 108                       const bool theIsAttrOnly)
 109 {
 110   AttributeRefAttrPtr aPnt = theStartCoin->refattr(theAttr);
 111   if(!aPnt) {
 112     return;
 113   }
 114   FeaturePtr aObj = ModelAPI_Feature::feature(aPnt->object());
 115   if(theList.find(aObj) == theList.end()) {
 116     std::shared_ptr<GeomAPI_Pnt2d> aOrig = getCoincidencePoint(theStartCoin);
 117     if(aOrig.get() == NULL) {
 118       return;
 119     }
 120     if(!theIsAttrOnly || !aPnt->isObject()) {
 121       theList.insert(aObj);
 122     }
 123     std::set<FeaturePtr> aCoincidences = findCoincidentConstraints(aObj);
 124     std::set<FeaturePtr>::const_iterator aCIt = aCoincidences.begin();
 125     for (; aCIt != aCoincidences.end(); ++aCIt) {
 126       FeaturePtr aConstrFeature = *aCIt;
 127       std::shared_ptr<GeomAPI_Pnt2d> aPnt = getCoincidencePoint(aConstrFeature);
 128       if(aPnt.get() && aOrig->isEqual(aPnt)) {
 129         findCoincidences(aConstrFeature, SketchPlugin_ConstraintCoincidence::ENTITY_A(), theList, theIsAttrOnly);
 130         findCoincidences(aConstrFeature, SketchPlugin_ConstraintCoincidence::ENTITY_B(), theList, theIsAttrOnly);
 131       }
 132     }
 133   }
 134 }
 135
 136 std::set<FeaturePtr> findFeaturesCoincidentToPoint(const AttributePoint2DPtr& thePoint)
 137 {
 138   std::set<FeaturePtr> aCoincidentFeatures;
 139
 140   FeaturePtr anOwner = ModelAPI_Feature::feature(thePoint->owner());
 141   aCoincidentFeatures.insert(anOwner);
 142
 143   std::set<FeaturePtr> aCoincidences = findCoincidentConstraints(anOwner);
 144   std::set<FeaturePtr>::const_iterator aCIt = aCoincidences.begin();
 145   for (; aCIt != aCoincidences.end(); ++aCIt) {
 146     bool isPointUsedInCoincidence = false;
 147     AttributeRefAttrPtr anOtherCoincidentAttr;
 148     for (int i = 0; i < CONSTRAINT_ATTR_SIZE; ++i) {
 149       AttributeRefAttrPtr aRefAttr = (*aCIt)->refattr(SketchPlugin_Constraint::ATTRIBUTE(i));
 150       if (!aRefAttr)
 151         continue;
 152       if (!aRefAttr->isObject() && aRefAttr->attr() == thePoint)
 153         isPointUsedInCoincidence = true;
 154       else
 155         anOtherCoincidentAttr = aRefAttr;
 156     }
 157
 158     if (isPointUsedInCoincidence) {
 159       ObjectPtr anObj;
 160       if (anOtherCoincidentAttr->isObject())
 161         anObj = anOtherCoincidentAttr->object();
 162       else
 163         anObj = anOtherCoincidentAttr->attr()->owner();
 164       aCoincidentFeatures.insert(ModelAPI_Feature::feature(anObj));
 165     }
 166   }
 167
 168   return aCoincidentFeatures;
 169 }
 170
 171 // Container for point-point coincidences.
 172 // Useful to find points coincident to a given point.
 173 class CoincidentPoints
 174 {
 175 public:
 176   void addCoincidence(const AttributePoint2DPtr& thePoint1,
 177                       const AttributePoint2DPtr& thePoint2 = AttributePoint2DPtr())
 178   {
 179     std::list< std::set<AttributePoint2DPtr> >::iterator aFound1 = find(thePoint1);
 180     std::list< std::set<AttributePoint2DPtr> >::iterator aFound2 = find(thePoint2);
 181     if (aFound1 == myCoincidentPoints.end()) {
 182       std::set<AttributePoint2DPtr> aNewSet;
 183       aNewSet.insert(thePoint1);
 184       if (thePoint2)
 185         aNewSet.insert(thePoint2);
 186       myCoincidentPoints.push_back(aNewSet);
 187     } else if (aFound2 == myCoincidentPoints.end()) {
 188       if (thePoint2)
 189         aFound1->insert(thePoint2);
 190     } else {
 191       aFound1->insert(aFound2->begin(), aFound2->end());
 192       myCoincidentPoints.erase(aFound2);
 193     }
 194   }
 195
 196   std::set<AttributePoint2DPtr> coincidentPoints(const AttributePoint2DPtr& thePoint)
 197   {
 198     std::list< std::set<AttributePoint2DPtr> >::iterator aFound = find(thePoint);
 199     if (aFound == myCoincidentPoints.end())
 200       return std::set<AttributePoint2DPtr>();
 201     return *aFound;
 202   }
 203
 204 private:
 205   std::list< std::set<AttributePoint2DPtr> >::iterator find(const AttributePoint2DPtr& thePoint)
 206   {
 207     std::list< std::set<AttributePoint2DPtr> >::iterator aSeek = myCoincidentPoints.begin();
 208     for (; aSeek != myCoincidentPoints.end(); ++aSeek)
 209       if (aSeek->find(thePoint) != aSeek->end())
 210         return aSeek;
 211     return myCoincidentPoints.end();
 212   }
 213
 214 private:
 215   std::list< std::set<AttributePoint2DPtr> > myCoincidentPoints;
 216 };
 217
 218 std::set<AttributePoint2DPtr> findPointsCoincidentToPoint(const AttributePoint2DPtr& thePoint)
 219 {
 220   CoincidentPoints aCoincidentPoints;
 221   AttributePoint2DPtr aPoints[2];
 222
 223   FeaturePtr anOwner = ModelAPI_Feature::feature(thePoint->owner());
 224   std::set<FeaturePtr> aCoincidences = findCoincidentConstraints(anOwner);
 225   std::set<FeaturePtr>::const_iterator aCIt = aCoincidences.begin();
 226   for (; aCIt != aCoincidences.end(); ++aCIt) {
 227     aPoints[0] = AttributePoint2DPtr();
 228     aPoints[1] = AttributePoint2DPtr();
 229     for (int i = 0, aPtInd = 0; i < CONSTRAINT_ATTR_SIZE; ++i) {
 230       AttributeRefAttrPtr aRefAttr = (*aCIt)->refattr(SketchPlugin_Constraint::ATTRIBUTE(i));
 231       if (!aRefAttr)
 232         continue;
 233       if (!aRefAttr->isObject())
 234         aPoints[aPtInd++] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
 235     }
 236
 237     if (aPoints[0])
 238       aCoincidentPoints.addCoincidence(aPoints[0], aPoints[1]);
 239   }
 240
 241   return aCoincidentPoints.coincidentPoints(thePoint);
 242 }
 243
 244 void resetAttribute(SketchPlugin_Feature* theFeature,
 245                     const std::string& theId)
 246 {
 247   AttributePtr anAttr = theFeature->attribute(theId);
 248   if(anAttr.get()) {
 249     anAttr->reset();
 250   }
 251 }
 252
 253 void createConstraint(SketchPlugin_Feature* theFeature,
 254                       const std::string& theId,
 255                       const AttributePtr theAttr,
 256                       const ObjectPtr theObject,
 257                       const bool theIsCanBeTangent)
 258 {
 259   AttributeRefAttrPtr aRefAttr = theFeature->refattr(theId);
 260   if(aRefAttr.get() && aRefAttr->isInitialized()) {
 261     FeaturePtr aConstraint;
 262     if(!theIsCanBeTangent) {
 263       aConstraint = theFeature->sketch()
 264                               ->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 265     } else {
 266       if(aRefAttr->isObject()) {
 267         ObjectPtr anObject = aRefAttr->object();
 268         FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
 269         if(aFeature->getKind() == SketchPlugin_Point::ID()) {
 270           aConstraint = theFeature->sketch()
 271                                   ->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 272         } else {
 273           aConstraint = theFeature->sketch()
 274                                   ->addFeature(SketchPlugin_ConstraintTangent::ID());
 275         }
 276       } else {
 277         aConstraint = theFeature->sketch()
 278                                 ->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 279       }
 280     }
 281     AttributeRefAttrPtr aRefAttrA = aConstraint->refattr(SketchPlugin_Constraint::ENTITY_A());
 282     aRefAttr->isObject() ? aRefAttrA->setObject(aRefAttr->object())
 283                          : aRefAttrA->setAttr(aRefAttr->attr());
 284     AttributeRefAttrPtr aRefAttrB = aConstraint->refattr(SketchPlugin_Constraint::ENTITY_B());
 285     if(theObject.get()) {
 286       aRefAttrB->setObject(theObject);
 287     } else if(theAttr.get()) {
 288       aRefAttrB->setAttr(theAttr);
 289     }
 290   }
 291 }
 292
 293 void convertRefAttrToPointOrTangentCurve(const AttributeRefAttrPtr&      theRefAttr,
 294                                          const AttributePtr&             theDefaultAttr,
 295                                          std::shared_ptr<GeomAPI_Shape>& theTangentCurve,
 296                                          std::shared_ptr<GeomAPI_Pnt2d>& thePassingPoint)
 297 {
 298   AttributePtr anAttr = theDefaultAttr;
 299   if (theRefAttr->isObject()) {
 300     FeaturePtr aTgFeature = ModelAPI_Feature::feature(theRefAttr->object());
 301     if (aTgFeature) {
 302       if (aTgFeature->getKind() != SketchPlugin_Point::ID()) {
 303         theTangentCurve = aTgFeature->lastResult()->shape();
 304         return;
 305       }
 306       anAttr = aTgFeature->attribute(SketchPlugin_Point::COORD_ID());
 307     }
 308   } else
 309     anAttr = theRefAttr->attr();
 310
 311   thePassingPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr)->pnt();
 312 }
 313
 314 } // namespace SketchPlugin_Tools