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 {
 109   AttributeRefAttrPtr aPnt = theStartCoin->refattr(theAttr);
 110   if(!aPnt) {
 111     return;
 112   }
 113   FeaturePtr aObj = ModelAPI_Feature::feature(aPnt->object());
 114   if(theList.find(aObj) == theList.end()) {
 115     std::shared_ptr<GeomAPI_Pnt2d> aOrig = getCoincidencePoint(theStartCoin);
 116     if(aOrig.get() == NULL) {
 117       return;
 118     }
 119     theList.insert(aObj);
 120     std::set<FeaturePtr> aCoincidences = findCoincidentConstraints(aObj);
 121     std::set<FeaturePtr>::const_iterator aCIt = aCoincidences.begin();
 122     for (; aCIt != aCoincidences.end(); ++aCIt) {
 123       FeaturePtr aConstrFeature = *aCIt;
 124       std::shared_ptr<GeomAPI_Pnt2d> aPnt = getCoincidencePoint(aConstrFeature);
 125       if(aPnt.get() && aOrig->isEqual(aPnt)) {
 126         findCoincidences(aConstrFeature, SketchPlugin_ConstraintCoincidence::ENTITY_A(), theList);
 127         findCoincidences(aConstrFeature, SketchPlugin_ConstraintCoincidence::ENTITY_B(), theList);
 128       }
 129     }
 130   }
 131 }
 132
 133 std::set<FeaturePtr> findFeaturesCoincidentToPoint(const AttributePoint2DPtr& thePoint)
 134 {
 135   std::set<FeaturePtr> aCoincidentFeatures;
 136
 137   FeaturePtr anOwner = ModelAPI_Feature::feature(thePoint->owner());
 138   aCoincidentFeatures.insert(anOwner);
 139
 140   std::set<FeaturePtr> aCoincidences = findCoincidentConstraints(anOwner);
 141   std::set<FeaturePtr>::const_iterator aCIt = aCoincidences.begin();
 142   for (; aCIt != aCoincidences.end(); ++aCIt) {
 143     bool isPointUsedInCoincidence = false;
 144     AttributeRefAttrPtr anOtherCoincidentAttr;
 145     for (int i = 0; i < CONSTRAINT_ATTR_SIZE; ++i) {
 146       AttributeRefAttrPtr aRefAttr = (*aCIt)->refattr(SketchPlugin_Constraint::ATTRIBUTE(i));
 147       if (!aRefAttr)
 148         continue;
 149       if (!aRefAttr->isObject() && aRefAttr->attr() == thePoint)
 150         isPointUsedInCoincidence = true;
 151       else
 152         anOtherCoincidentAttr = aRefAttr;
 153     }
 154
 155     if (isPointUsedInCoincidence) {
 156       ObjectPtr anObj;
 157       if (anOtherCoincidentAttr->isObject())
 158         anObj = anOtherCoincidentAttr->object();
 159       else
 160         anObj = anOtherCoincidentAttr->attr()->owner();
 161       aCoincidentFeatures.insert(ModelAPI_Feature::feature(anObj));
 162     }
 163   }
 164
 165   return aCoincidentFeatures;
 166 }
 167
 168 // Container for point-point coincidences.
 169 // Useful to find points coincident to a given point.
 170 class CoincidentPoints
 171 {
 172 public:
 173   void addCoincidence(const AttributePoint2DPtr& thePoint1,
 174                       const AttributePoint2DPtr& thePoint2 = AttributePoint2DPtr())
 175   {
 176     std::list< std::set<AttributePoint2DPtr> >::iterator aFound1 = find(thePoint1);
 177     std::list< std::set<AttributePoint2DPtr> >::iterator aFound2 = find(thePoint2);
 178     if (aFound1 == myCoincidentPoints.end()) {
 179       std::set<AttributePoint2DPtr> aNewSet;
 180       aNewSet.insert(thePoint1);
 181       if (thePoint2)
 182         aNewSet.insert(thePoint2);
 183       myCoincidentPoints.push_back(aNewSet);
 184     } else if (aFound2 == myCoincidentPoints.end()) {
 185       if (thePoint2)
 186         aFound1->insert(thePoint2);
 187     } else {
 188       aFound1->insert(aFound2->begin(), aFound2->end());
 189       myCoincidentPoints.erase(aFound2);
 190     }
 191   }
 192
 193   std::set<AttributePoint2DPtr> coincidentPoints(const AttributePoint2DPtr& thePoint)
 194   {
 195     std::list< std::set<AttributePoint2DPtr> >::iterator aFound = find(thePoint);
 196     if (aFound == myCoincidentPoints.end())
 197       return std::set<AttributePoint2DPtr>();
 198     return *aFound;
 199   }
 200
 201 private:
 202   std::list< std::set<AttributePoint2DPtr> >::iterator find(const AttributePoint2DPtr& thePoint)
 203   {
 204     std::list< std::set<AttributePoint2DPtr> >::iterator aSeek = myCoincidentPoints.begin();
 205     for (; aSeek != myCoincidentPoints.end(); ++aSeek)
 206       if (aSeek->find(thePoint) != aSeek->end())
 207         return aSeek;
 208     return myCoincidentPoints.end();
 209   }
 210
 211 private:
 212   std::list< std::set<AttributePoint2DPtr> > myCoincidentPoints;
 213 };
 214
 215 std::set<AttributePoint2DPtr> findPointsCoincidentToPoint(const AttributePoint2DPtr& thePoint)
 216 {
 217   CoincidentPoints aCoincidentPoints;
 218   AttributePoint2DPtr aPoints[2];
 219
 220   FeaturePtr anOwner = ModelAPI_Feature::feature(thePoint->owner());
 221   std::set<FeaturePtr> aCoincidences = findCoincidentConstraints(anOwner);
 222   std::set<FeaturePtr>::const_iterator aCIt = aCoincidences.begin();
 223   for (; aCIt != aCoincidences.end(); ++aCIt) {
 224     aPoints[0] = AttributePoint2DPtr();
 225     aPoints[1] = AttributePoint2DPtr();
 226     for (int i = 0, aPtInd = 0; i < CONSTRAINT_ATTR_SIZE; ++i) {
 227       AttributeRefAttrPtr aRefAttr = (*aCIt)->refattr(SketchPlugin_Constraint::ATTRIBUTE(i));
 228       if (!aRefAttr)
 229         continue;
 230       if (!aRefAttr->isObject())
 231         aPoints[aPtInd++] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
 232     }
 233
 234     if (aPoints[0])
 235       aCoincidentPoints.addCoincidence(aPoints[0], aPoints[1]);
 236   }
 237
 238   return aCoincidentPoints.coincidentPoints(thePoint);
 239 }
 240
 241 void resetAttribute(SketchPlugin_Feature* theFeature,
 242                     const std::string& theId)
 243 {
 244   AttributePtr anAttr = theFeature->attribute(theId);
 245   if(anAttr.get()) {
 246     anAttr->reset();
 247   }
 248 }
 249
 250 void createConstraint(SketchPlugin_Feature* theFeature,
 251                       const std::string& theId,
 252                       const AttributePtr theAttr,
 253                       const ObjectPtr theObject,
 254                       const bool theIsCanBeTangent)
 255 {
 256   AttributeRefAttrPtr aRefAttr = theFeature->refattr(theId);
 257   if(aRefAttr.get() && aRefAttr->isInitialized()) {
 258     FeaturePtr aConstraint;
 259     if(!theIsCanBeTangent) {
 260       aConstraint = theFeature->sketch()
 261                               ->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 262     } else {
 263       if(aRefAttr->isObject()) {
 264         ObjectPtr anObject = aRefAttr->object();
 265         FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
 266         if(aFeature->getKind() == SketchPlugin_Point::ID()) {
 267           aConstraint = theFeature->sketch()
 268                                   ->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 269         } else {
 270           aConstraint = theFeature->sketch()
 271                                   ->addFeature(SketchPlugin_ConstraintTangent::ID());
 272         }
 273       } else {
 274         aConstraint = theFeature->sketch()
 275                                 ->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 276       }
 277     }
 278     AttributeRefAttrPtr aRefAttrA = aConstraint->refattr(SketchPlugin_Constraint::ENTITY_A());
 279     aRefAttr->isObject() ? aRefAttrA->setObject(aRefAttr->object())
 280                          : aRefAttrA->setAttr(aRefAttr->attr());
 281     AttributeRefAttrPtr aRefAttrB = aConstraint->refattr(SketchPlugin_Constraint::ENTITY_B());
 282     if(theObject.get()) {
 283       aRefAttrB->setObject(theObject);
 284     } else if(theAttr.get()) {
 285       aRefAttrB->setAttr(theAttr);
 286     }
 287   }
 288 }
 289
 290 void convertRefAttrToPointOrTangentCurve(const AttributeRefAttrPtr&      theRefAttr,
 291                                          const AttributePtr&             theDefaultAttr,
 292                                          std::shared_ptr<GeomAPI_Shape>& theTangentCurve,
 293                                          std::shared_ptr<GeomAPI_Pnt2d>& thePassingPoint)
 294 {
 295   AttributePtr anAttr = theDefaultAttr;
 296   if (theRefAttr->isObject()) {
 297     FeaturePtr aTgFeature = ModelAPI_Feature::feature(theRefAttr->object());
 298     if (aTgFeature) {
 299       if (aTgFeature->getKind() != SketchPlugin_Point::ID()) {
 300         theTangentCurve = aTgFeature->lastResult()->shape();
 301         return;
 302       }
 303       anAttr = aTgFeature->attribute(SketchPlugin_Point::COORD_ID());
 304     }
 305   } else
 306     anAttr = theRefAttr->attr();
 307
 308   thePassingPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr)->pnt();
 309 }
 310
 311 } // namespace SketchPlugin_Tools