src/SketchSolver/SketchSolver_Constraint.cpp

   1 // Copyright (C) 2014-2019  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
  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   if (!aNewConstraint) {
 137     myErrorMsg = SketchSolver_Error::WRONG_CONSTRAINT_TYPE();
 138     return;
 139   }
 140   myStorage->addConstraint(myBaseConstraint, aNewConstraint);
 141
 142   adjustConstraint();
 143 }
 144
 145 void SketchSolver_Constraint::update()
 146 {
 147   cleanErrorMsg();
 148
 149   // Get list of attributes of the constraint and compare it with previously stored.
 150   // If the lists are different, fully rebuild constraint
 151   std::set<EntityWrapperPtr> anAttributes;
 152   for (int anEntIndex = 0; anEntIndex < 4; ++anEntIndex) {
 153     AttributePtr anAttr =
 154         myBaseConstraint->attribute(SketchPlugin_Constraint::ATTRIBUTE(anEntIndex));
 155     if (!anAttr)
 156       continue;
 157
 158     if (myBaseConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
 159       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttr);
 160       FeaturePtr aFeat = ModelAPI_Feature::feature(aRefAttr->object());
 161       if (aFeat) {
 162         // Workaround for the Length constraint: add points of line, not line itself
 163         anAttributes.insert(myStorage->entity(aFeat->attribute(SketchPlugin_Line::START_ID())));
 164         anAttributes.insert(myStorage->entity(aFeat->attribute(SketchPlugin_Line::END_ID())));
 165       }
 166     } else
 167       anAttributes.insert(myStorage->entity(anAttr));
 168   }
 169
 170   std::set<EntityWrapperPtr>::iterator aFound;
 171   std::list<EntityWrapperPtr>::const_iterator anAttrIt = myAttributes.begin();
 172   for (; anAttrIt != myAttributes.end() && !anAttributes.empty(); ++anAttrIt)
 173     anAttributes.erase(*anAttrIt);
 174
 175   if (!anAttributes.empty()) {
 176     remove();
 177     process();
 178     return;
 179   }
 180
 181   AttributePtr aValueAttr = myBaseConstraint->attribute(SketchPlugin_Constraint::VALUE());
 182   if (aValueAttr)
 183     myStorage->update(aValueAttr);
 184
 185   adjustConstraint();
 186 }
 187
 188 bool SketchSolver_Constraint::remove()
 189 {
 190   cleanErrorMsg();
 191   myType = CONSTRAINT_UNKNOWN;
 192   myStorage->unsubscribeUpdates(this);
 193   return myStorage->removeConstraint(myBaseConstraint);
 194 }
 195
 196 void SketchSolver_Constraint::getAttributes(
 197     EntityWrapperPtr& theValue,
 198     std::vector<EntityWrapperPtr>& theAttributes)
 199 {
 200   static const int anInitNbOfAttr = 4;
 201   theAttributes.assign(anInitNbOfAttr, EntityWrapperPtr());
 202   myAttributes.clear();
 203
 204   DataPtr aData = myBaseConstraint->data();
 205
 206   myType = TYPE(myBaseConstraint);
 207
 208   AttributePtr aValueAttr = aData->attribute(SketchPlugin_Constraint::VALUE());
 209   if (aValueAttr) {
 210     PlaneGCSSolver_AttributeBuilder aValueBuilder;
 211     theValue = aValueBuilder.createAttribute(aValueAttr);
 212     myStorage->addEntity(aValueAttr, theValue);
 213   }
 214
 215   int aPtInd = 0; // index of first point in the list of attributes
 216   int aEntInd = 2; // index of first entity in the list of attributes
 217   std::list<AttributePtr> aConstrAttrs = aData->attributes(ModelAPI_AttributeRefAttr::typeId());
 218   std::list<AttributePtr>::iterator anIter = aConstrAttrs.begin();
 219   for (; anIter != aConstrAttrs.end(); anIter++) {
 220     AttributeRefAttrPtr aRefAttr =
 221         std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anIter);
 222     if (!aRefAttr || !aRefAttr->isInitialized()) {
 223       myErrorMsg = SketchSolver_Error::NOT_INITIALIZED();
 224       return;
 225     }
 226
 227     myStorage->update(*anIter, true);
 228     EntityWrapperPtr anEntity = myStorage->entity(*anIter);
 229     myAttributes.push_back(anEntity);
 230
 231     SketchSolver_EntityType aType = anEntity->type();
 232     if (aType == ENTITY_UNKNOWN)
 233       continue;
 234     else if (aType == ENTITY_POINT)
 235       theAttributes[aPtInd++] = anEntity; // the point is created
 236     else { // another entity (not a point) is created
 237       if (aEntInd < anInitNbOfAttr)
 238         theAttributes[aEntInd] = anEntity;
 239       else
 240         theAttributes.push_back(anEntity);
 241       aEntInd++;
 242     }
 243   }
 244 }