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
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 #include <SketchSolver_Constraint.h>
  22 #include <SketchSolver_Error.h>
  23
  24 #include <PlaneGCSSolver_AttributeBuilder.h>
  25 #include <PlaneGCSSolver_Tools.h>
  26
  27 #include <SketchPlugin_Arc.h>
  28 #include <SketchPlugin_Circle.h>
  29 #include <SketchPlugin_Line.h>
  30 #include <SketchPlugin_Point.h>
  31
  32 #include <SketchPlugin_ConstraintAngle.h>
  33 #include <SketchPlugin_ConstraintCoincidence.h>
  34 #include <SketchPlugin_ConstraintCollinear.h>
  35 #include <SketchPlugin_ConstraintDistance.h>
  36 #include <SketchPlugin_ConstraintEqual.h>
  37 #include <SketchPlugin_ConstraintHorizontal.h>
  38 #include <SketchPlugin_ConstraintLength.h>
  39 #include <SketchPlugin_ConstraintMiddle.h>
  40 #include <SketchPlugin_ConstraintMirror.h>
  41 #include <SketchPlugin_ConstraintParallel.h>
  42 #include <SketchPlugin_ConstraintPerpendicular.h>
  43 #include <SketchPlugin_ConstraintRadius.h>
  44 #include <SketchPlugin_ConstraintRigid.h>
  45 #include <SketchPlugin_ConstraintTangent.h>
  46 #include <SketchPlugin_ConstraintVertical.h>
  47
  48 #include <GeomAPI_Dir2d.h>
  49 #include <GeomDataAPI_Point.h>
  50 #include <GeomDataAPI_Point2D.h>
  51 #include <ModelAPI_AttributeDouble.h>
  52 #include <ModelAPI_ResultConstruction.h>
  53
  54 #include <math.h>
  55
  56 SketchSolver_Constraint::SketchSolver_Constraint(
  57     ConstraintPtr  theConstraint)
  58   : myBaseConstraint(theConstraint),
  59     myType(CONSTRAINT_UNKNOWN)
  60 {
  61 }
  62
  63 void SketchSolver_Constraint::process(StoragePtr theStorage, bool theEvensBlocked)
  64 {
  65   myStorage = theStorage;
  66   blockEvents(theEvensBlocked);
  67   // Process constraint according to its type
  68   process();
  69 }
  70
  71 void SketchSolver_Constraint::blockEvents(bool isBlocked)
  72 {
  73   myBaseConstraint->data()->blockSendAttributeUpdated(isBlocked);
  74 }
  75
  76
  77 SketchSolver_ConstraintType SketchSolver_Constraint::TYPE(ConstraintPtr theConstraint)
  78 {
  79   const std::string& aType = theConstraint->getKind();
  80   if (aType == SketchPlugin_ConstraintCoincidence::ID())
  81     return CONSTRAINT_COINCIDENCE;
  82   else if (aType == SketchPlugin_ConstraintRigid::ID())
  83     return CONSTRAINT_FIXED;
  84   else if (aType == SketchPlugin_ConstraintHorizontal::ID())
  85     return CONSTRAINT_HORIZONTAL;
  86   else if (aType == SketchPlugin_ConstraintVertical::ID())
  87     return CONSTRAINT_VERTICAL;
  88   else if (aType == SketchPlugin_ConstraintAngle::ID())
  89     return CONSTRAINT_ANGLE;
  90   else if (aType == SketchPlugin_ConstraintDistance::ID())
  91     return CONSTRAINT_DISTANCE;
  92   else if (aType == SketchPlugin_ConstraintEqual::ID())
  93     return CONSTRAINT_EQUAL;
  94   else if (aType == SketchPlugin_ConstraintLength::ID())
  95     return CONSTRAINT_PT_PT_DISTANCE;
  96   else if (aType == SketchPlugin_ConstraintMirror::ID())
  97     return CONSTRAINT_SYMMETRIC;
  98   else if (aType == SketchPlugin_ConstraintParallel::ID())
  99     return CONSTRAINT_PARALLEL;
 100   else if (aType == SketchPlugin_ConstraintPerpendicular::ID())
 101     return CONSTRAINT_PERPENDICULAR;
 102   else if (aType == SketchPlugin_ConstraintRadius::ID())
 103     return CONSTRAINT_RADIUS;
 104   else if (aType == SketchPlugin_ConstraintTangent::ID())
 105     return CONSTRAINT_TANGENT;
 106   else if (aType == SketchPlugin_ConstraintCollinear::ID())
 107     return CONSTRAINT_COLLINEAR;
 108   else if (aType == SketchPlugin_ConstraintMiddle::ID())
 109     return CONSTRAINT_MIDDLE_POINT;
 110   return CONSTRAINT_UNKNOWN;
 111 }
 112
 113 void SketchSolver_Constraint::process()
 114 {
 115   cleanErrorMsg();
 116   if (!myBaseConstraint || !myStorage) {
 117     // Not enough parameters are assigned
 118     return;
 119   }
 120
 121   SketchSolver_ConstraintType aConstrType = getType();
 122   EntityWrapperPtr aValue;
 123   std::vector<EntityWrapperPtr> anAttributes;
 124   getAttributes(aValue, anAttributes);
 125   if (!myErrorMsg.empty())
 126     return;
 127   if (anAttributes.empty()) {
 128     myErrorMsg = SketchSolver_Error::INCORRECT_ATTRIBUTE();
 129     return;
 130   }
 131   if (aConstrType == CONSTRAINT_UNKNOWN)
 132     aConstrType = getType();
 133
 134   ConstraintWrapperPtr aNewConstraint = PlaneGCSSolver_Tools::createConstraint(
 135       myBaseConstraint, aConstrType,
 136       aValue, anAttributes[0], anAttributes[1], anAttributes[2], anAttributes[3]);
 137   myStorage->addConstraint(myBaseConstraint, aNewConstraint);
 138
 139   adjustConstraint();
 140 }
 141
 142 void SketchSolver_Constraint::update()
 143 {
 144   cleanErrorMsg();
 145
 146   // Get list of attributes of the constraint and compare it with previously stored.
 147   // If the lists are different, fully rebuild constraint
 148   std::set<EntityWrapperPtr> anAttributes;
 149   for (int anEntIndex = 0; anEntIndex < 4; ++anEntIndex) {
 150     AttributePtr anAttr =
 151         myBaseConstraint->attribute(SketchPlugin_Constraint::ATTRIBUTE(anEntIndex));
 152     if (!anAttr)
 153       continue;
 154
 155     if (myBaseConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
 156       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttr);
 157       FeaturePtr aFeat = ModelAPI_Feature::feature(aRefAttr->object());
 158       if (aFeat) {
 159         // Workaround for the Length constraint: add points of line, not line itself
 160         anAttributes.insert(myStorage->entity(aFeat->attribute(SketchPlugin_Line::START_ID())));
 161         anAttributes.insert(myStorage->entity(aFeat->attribute(SketchPlugin_Line::END_ID())));
 162       }
 163     } else
 164       anAttributes.insert(myStorage->entity(anAttr));
 165   }
 166
 167   std::set<EntityWrapperPtr>::iterator aFound;
 168   std::list<EntityWrapperPtr>::const_iterator anAttrIt = myAttributes.begin();
 169   for (; anAttrIt != myAttributes.end() && !anAttributes.empty(); ++anAttrIt)
 170     anAttributes.erase(*anAttrIt);
 171
 172   if (!anAttributes.empty()) {
 173     remove();
 174     process();
 175     return;
 176   }
 177
 178   AttributePtr aValueAttr = myBaseConstraint->attribute(SketchPlugin_Constraint::VALUE());
 179   if (aValueAttr)
 180     myStorage->update(aValueAttr);
 181
 182   adjustConstraint();
 183 }
 184
 185 bool SketchSolver_Constraint::remove()
 186 {
 187   cleanErrorMsg();
 188   myType = CONSTRAINT_UNKNOWN;
 189   myStorage->unsubscribeUpdates(this);
 190   return myStorage->removeConstraint(myBaseConstraint);
 191 }
 192
 193 void SketchSolver_Constraint::getAttributes(
 194     EntityWrapperPtr& theValue,
 195     std::vector<EntityWrapperPtr>& theAttributes)
 196 {
 197   static const int anInitNbOfAttr = 4;
 198   theAttributes.assign(anInitNbOfAttr, EntityWrapperPtr());
 199   myAttributes.clear();
 200
 201   DataPtr aData = myBaseConstraint->data();
 202
 203   myType = TYPE(myBaseConstraint);
 204
 205   AttributePtr aValueAttr = aData->attribute(SketchPlugin_Constraint::VALUE());
 206   if (aValueAttr) {
 207     PlaneGCSSolver_AttributeBuilder aValueBuilder;
 208     theValue = aValueBuilder.createAttribute(aValueAttr);
 209     myStorage->addEntity(aValueAttr, theValue);
 210   }
 211
 212   int aPtInd = 0; // index of first point in the list of attributes
 213   int aEntInd = 2; // index of first entity in the list of attributes
 214   std::list<AttributePtr> aConstrAttrs = aData->attributes(ModelAPI_AttributeRefAttr::typeId());
 215   std::list<AttributePtr>::iterator anIter = aConstrAttrs.begin();
 216   for (; anIter != aConstrAttrs.end(); anIter++) {
 217     AttributeRefAttrPtr aRefAttr =
 218         std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anIter);
 219     if (!aRefAttr || !aRefAttr->isInitialized()) {
 220       myErrorMsg = SketchSolver_Error::NOT_INITIALIZED();
 221       return;
 222     }
 223
 224     myStorage->update(*anIter, true);
 225     EntityWrapperPtr anEntity = myStorage->entity(*anIter);
 226     myAttributes.push_back(anEntity);
 227
 228     SketchSolver_EntityType aType = anEntity->type();
 229     if (aType == ENTITY_UNKNOWN)
 230       continue;
 231     else if (aType == ENTITY_POINT)
 232       theAttributes[aPtInd++] = anEntity; // the point is created
 233     else { // another entity (not a point) is created
 234       if (aEntInd < anInitNbOfAttr)
 235         theAttributes[aEntInd] = anEntity;
 236       else
 237         theAttributes.push_back(anEntity);
 238       aEntInd++;
 239     }
 240   }
 241 }