src/SketchSolver/SketchSolver_Constraint.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 email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  18 //
  19
  20 #include <SketchSolver_Constraint.h>
  21 #include <SketchSolver_Error.h>
  22
  23 #include <PlaneGCSSolver_AttributeBuilder.h>
  24 #include <PlaneGCSSolver_Tools.h>
  25
  26 #include <SketchPlugin_Arc.h>
  27 #include <SketchPlugin_Circle.h>
  28 #include <SketchPlugin_Line.h>
  29 #include <SketchPlugin_Point.h>
  30
  31 #include <SketchPlugin_ConstraintAngle.h>
  32 #include <SketchPlugin_ConstraintCoincidence.h>
  33 #include <SketchPlugin_ConstraintCollinear.h>
  34 #include <SketchPlugin_ConstraintDistance.h>
  35 #include <SketchPlugin_ConstraintEqual.h>
  36 #include <SketchPlugin_ConstraintHorizontal.h>
  37 #include <SketchPlugin_ConstraintLength.h>
  38 #include <SketchPlugin_ConstraintMiddle.h>
  39 #include <SketchPlugin_ConstraintMirror.h>
  40 #include <SketchPlugin_ConstraintParallel.h>
  41 #include <SketchPlugin_ConstraintPerpendicular.h>
  42 #include <SketchPlugin_ConstraintRadius.h>
  43 #include <SketchPlugin_ConstraintRigid.h>
  44 #include <SketchPlugin_ConstraintTangent.h>
  45 #include <SketchPlugin_ConstraintVertical.h>
  46
  47 #include <GeomAPI_Dir2d.h>
  48 #include <GeomDataAPI_Point.h>
  49 #include <GeomDataAPI_Point2D.h>
  50 #include <ModelAPI_AttributeDouble.h>
  51 #include <ModelAPI_ResultConstruction.h>
  52
  53 #include <math.h>
  54
  55 SketchSolver_Constraint::SketchSolver_Constraint(
  56     ConstraintPtr  theConstraint)
  57   : myBaseConstraint(theConstraint),
  58     myType(CONSTRAINT_UNKNOWN)
  59 {
  60 }
  61
  62 void SketchSolver_Constraint::process(StoragePtr theStorage, bool theEvensBlocked)
  63 {
  64   myStorage = theStorage;
  65   blockEvents(theEvensBlocked);
  66   // Process constraint according to its type
  67   process();
  68 }
  69
  70 void SketchSolver_Constraint::blockEvents(bool isBlocked)
  71 {
  72   myBaseConstraint->data()->blockSendAttributeUpdated(isBlocked);
  73 }
  74
  75
  76 SketchSolver_ConstraintType SketchSolver_Constraint::TYPE(ConstraintPtr theConstraint)
  77 {
  78   const std::string& aType = theConstraint->getKind();
  79   if (aType == SketchPlugin_ConstraintCoincidence::ID())
  80     return CONSTRAINT_COINCIDENCE;
  81   else if (aType == SketchPlugin_ConstraintRigid::ID())
  82     return CONSTRAINT_FIXED;
  83   else if (aType == SketchPlugin_ConstraintHorizontal::ID())
  84     return CONSTRAINT_HORIZONTAL;
  85   else if (aType == SketchPlugin_ConstraintVertical::ID())
  86     return CONSTRAINT_VERTICAL;
  87   else if (aType == SketchPlugin_ConstraintAngle::ID())
  88     return CONSTRAINT_ANGLE;
  89   else if (aType == SketchPlugin_ConstraintDistance::ID())
  90     return CONSTRAINT_DISTANCE;
  91   else if (aType == SketchPlugin_ConstraintEqual::ID())
  92     return CONSTRAINT_EQUAL;
  93   else if (aType == SketchPlugin_ConstraintLength::ID())
  94     return CONSTRAINT_PT_PT_DISTANCE;
  95   else if (aType == SketchPlugin_ConstraintMirror::ID())
  96     return CONSTRAINT_SYMMETRIC;
  97   else if (aType == SketchPlugin_ConstraintParallel::ID())
  98     return CONSTRAINT_PARALLEL;
  99   else if (aType == SketchPlugin_ConstraintPerpendicular::ID())
 100     return CONSTRAINT_PERPENDICULAR;
 101   else if (aType == SketchPlugin_ConstraintRadius::ID())
 102     return CONSTRAINT_RADIUS;
 103   else if (aType == SketchPlugin_ConstraintTangent::ID())
 104     return CONSTRAINT_TANGENT;
 105   else if (aType == SketchPlugin_ConstraintCollinear::ID())
 106     return CONSTRAINT_COLLINEAR;
 107   else if (aType == SketchPlugin_ConstraintMiddle::ID())
 108     return CONSTRAINT_MIDDLE_POINT;
 109   return CONSTRAINT_UNKNOWN;
 110 }
 111
 112 void SketchSolver_Constraint::process()
 113 {
 114   cleanErrorMsg();
 115   if (!myBaseConstraint || !myStorage) {
 116     // Not enough parameters are assigned
 117     return;
 118   }
 119
 120   SketchSolver_ConstraintType aConstrType = getType();
 121   EntityWrapperPtr aValue;
 122   std::vector<EntityWrapperPtr> anAttributes;
 123   getAttributes(aValue, anAttributes);
 124   if (!myErrorMsg.empty())
 125     return;
 126   if (anAttributes.empty()) {
 127     myErrorMsg = SketchSolver_Error::INCORRECT_ATTRIBUTE();
 128     return;
 129   }
 130   if (aConstrType == CONSTRAINT_UNKNOWN)
 131     aConstrType = getType();
 132
 133   ConstraintWrapperPtr aNewConstraint = PlaneGCSSolver_Tools::createConstraint(
 134       myBaseConstraint, aConstrType,
 135       aValue, anAttributes[0], anAttributes[1], anAttributes[2], anAttributes[3]);
 136   myStorage->addConstraint(myBaseConstraint, aNewConstraint);
 137
 138   adjustConstraint();
 139 }
 140
 141 void SketchSolver_Constraint::update()
 142 {
 143   cleanErrorMsg();
 144
 145   // Get list of attributes of the constraint and compare it with previously stored.
 146   // If the lists are different, fully rebuild constraint
 147   std::set<EntityWrapperPtr> anAttributes;
 148   for (int anEntIndex = 0; anEntIndex < 4; ++anEntIndex) {
 149     AttributePtr anAttr =
 150         myBaseConstraint->attribute(SketchPlugin_Constraint::ATTRIBUTE(anEntIndex));
 151     if (!anAttr)
 152       continue;
 153
 154     if (myBaseConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
 155       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttr);
 156       FeaturePtr aFeat = ModelAPI_Feature::feature(aRefAttr->object());
 157       if (aFeat) {
 158         // Workaround for the Length constraint: add points of line, not line itself
 159         anAttributes.insert(myStorage->entity(aFeat->attribute(SketchPlugin_Line::START_ID())));
 160         anAttributes.insert(myStorage->entity(aFeat->attribute(SketchPlugin_Line::END_ID())));
 161       }
 162     } else
 163       anAttributes.insert(myStorage->entity(anAttr));
 164   }
 165
 166   std::set<EntityWrapperPtr>::iterator aFound;
 167   std::list<EntityWrapperPtr>::const_iterator anAttrIt = myAttributes.begin();
 168   for (; anAttrIt != myAttributes.end() && !anAttributes.empty(); ++anAttrIt)
 169     anAttributes.erase(*anAttrIt);
 170
 171   if (!anAttributes.empty()) {
 172     remove();
 173     process();
 174     return;
 175   }
 176
 177   AttributePtr aValueAttr = myBaseConstraint->attribute(SketchPlugin_Constraint::VALUE());
 178   if (aValueAttr)
 179     myStorage->update(aValueAttr);
 180
 181   adjustConstraint();
 182 }
 183
 184 bool SketchSolver_Constraint::remove()
 185 {
 186   cleanErrorMsg();
 187   myType = CONSTRAINT_UNKNOWN;
 188   myStorage->unsubscribeUpdates(this);
 189   return myStorage->removeConstraint(myBaseConstraint);
 190 }
 191
 192 void SketchSolver_Constraint::getAttributes(
 193     EntityWrapperPtr& theValue,
 194     std::vector<EntityWrapperPtr>& theAttributes)
 195 {
 196   static const int anInitNbOfAttr = 4;
 197   theAttributes.assign(anInitNbOfAttr, EntityWrapperPtr());
 198   myAttributes.clear();
 199
 200   DataPtr aData = myBaseConstraint->data();
 201
 202   myType = TYPE(myBaseConstraint);
 203
 204   AttributePtr aValueAttr = aData->attribute(SketchPlugin_Constraint::VALUE());
 205   if (aValueAttr) {
 206     PlaneGCSSolver_AttributeBuilder aValueBuilder;
 207     theValue = aValueBuilder.createAttribute(aValueAttr);
 208     myStorage->addEntity(aValueAttr, theValue);
 209   }
 210
 211   int aPtInd = 0; // index of first point in the list of attributes
 212   int aEntInd = 2; // index of first entity in the list of attributes
 213   std::list<AttributePtr> aConstrAttrs = aData->attributes(ModelAPI_AttributeRefAttr::typeId());
 214   std::list<AttributePtr>::iterator anIter = aConstrAttrs.begin();
 215   for (; anIter != aConstrAttrs.end(); anIter++) {
 216     AttributeRefAttrPtr aRefAttr =
 217         std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anIter);
 218     if (!aRefAttr || !aRefAttr->isInitialized()) {
 219       myErrorMsg = SketchSolver_Error::NOT_INITIALIZED();
 220       return;
 221     }
 222
 223     myStorage->update(*anIter, true);
 224     EntityWrapperPtr anEntity = myStorage->entity(*anIter);
 225     myAttributes.push_back(anEntity);
 226
 227     SketchSolver_EntityType aType = anEntity->type();
 228     if (aType == ENTITY_UNKNOWN)
 229       continue;
 230     else if (aType == ENTITY_POINT)
 231       theAttributes[aPtInd++] = anEntity; // the point is created
 232     else { // another entity (not a point) is created
 233       if (aEntInd < anInitNbOfAttr)
 234         theAttributes[aEntInd] = anEntity;
 235       else
 236         theAttributes.push_back(anEntity);
 237       aEntInd++;
 238     }
 239   }
 240 }