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Merge branch 'V9_2_2_BR'
[modules/shaper.git] / src / SketchSolver / SketchSolver_ConstraintDistance.cpp
index 3a6a0fa48b7d4080b42927d911fda6bfb634f3d7..c3828b79405be5ae32b083a47f5a975fe0b2722b 100644 (file)
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2017  CEA/DEN, EDF R&D
+// Copyright (C) 2014-2019  CEA/DEN, EDF R&D
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
 //
 // You should have received a copy of the GNU Lesser General Public
 // License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 //
-// See http://www.salome-platform.org/ or
-// email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
 //
 
 #include <SketchSolver_ConstraintDistance.h>
 #include <SketchSolver_Error.h>
 #include <SketchSolver_Manager.h>
 
+#include <PlaneGCSSolver_EdgeWrapper.h>
+#include <PlaneGCSSolver_PointWrapper.h>
+#include <PlaneGCSSolver_Storage.h>
+#include <PlaneGCSSolver_Tools.h>
+
+#include <SketchPlugin_ConstraintDistanceHorizontal.h>
+#include <SketchPlugin_ConstraintDistanceVertical.h>
+
 #include <GeomAPI_Dir2d.h>
 #include <GeomAPI_Lin2d.h>
 #include <GeomAPI_Pnt2d.h>
 #include <math.h>
 
 
+static void getPointAndLine(const ConstraintPtr& theConstraint, const StoragePtr& theStorage,
+                            EntityWrapperPtr& thePoint, EntityWrapperPtr& theLine)
+{
+  for (int i = 0; i < 2; ++i) {
+    AttributePtr anAttr = theConstraint->attribute(SketchPlugin_Constraint::ATTRIBUTE(i));
+    EntityWrapperPtr anEntity = theStorage->entity(anAttr);
+    if (anEntity->type() == ENTITY_POINT)
+      thePoint = anEntity;
+    else if (anEntity->type() == ENTITY_LINE)
+      theLine = anEntity;
+  }
+}
+
+static void adjustOddPoint(const EntityWrapperPtr& theDistPoint,
+                           const EntityWrapperPtr& theDistLine,
+                           GCSPointPtr& theOddPoint)
+{
+  if (!theOddPoint)
+    return;
+
+  std::shared_ptr<GeomAPI_Lin2d> aLine = PlaneGCSSolver_Tools::line(theDistLine);
+  std::shared_ptr<GeomAPI_Pnt2d> aPoint = PlaneGCSSolver_Tools::point(theDistPoint);
+
+  std::shared_ptr<GeomAPI_XY> aLineVec = aLine->direction()->xy();
+  std::shared_ptr<GeomAPI_XY> aPtLineVec = aPoint->xy()->decreased(aLine->location()->xy());
+
+  double aDot = aPtLineVec->dot(aLineVec);
+  std::shared_ptr<GeomAPI_XY> aProjectedPnt =
+    aLine->location()->xy()->added(aLineVec->multiplied(aDot));
+
+  *(theOddPoint->x) = aProjectedPnt->x();
+  *(theOddPoint->y) = aProjectedPnt->y();
+}
+
+
 void SketchSolver_ConstraintDistance::getAttributes(
     EntityWrapperPtr& theValue,
     std::vector<EntityWrapperPtr>& theAttributes)
@@ -40,9 +82,14 @@ void SketchSolver_ConstraintDistance::getAttributes(
     return;
   }
 
-  if (theAttributes[1])
-    myType = CONSTRAINT_PT_PT_DISTANCE;
-  else if (theAttributes[2] && theAttributes[2]->type() == ENTITY_LINE)
+  if (theAttributes[1]) {
+    if (myBaseConstraint->getKind() == SketchPlugin_ConstraintDistanceHorizontal::ID())
+      myType = CONSTRAINT_HORIZONTAL_DISTANCE;
+    else if (myBaseConstraint->getKind() == SketchPlugin_ConstraintDistanceVertical::ID())
+      myType = CONSTRAINT_VERTICAL_DISTANCE;
+    else
+      myType = CONSTRAINT_PT_PT_DISTANCE;
+  } else if (theAttributes[2] && theAttributes[2]->type() == ENTITY_LINE)
     myType = CONSTRAINT_PT_LINE_DISTANCE;
   else
     theAttributes.clear();
@@ -52,53 +99,25 @@ void SketchSolver_ConstraintDistance::getAttributes(
 
 void SketchSolver_ConstraintDistance::adjustConstraint()
 {
-  ConstraintWrapperPtr aConstraint = myStorage->constraint(myBaseConstraint);
-
-  // Adjust point-point distance if the points are equal
-  if (getType() == CONSTRAINT_PT_PT_DISTANCE) {
-////    AttributePtr aPt1 = myBaseConstraint->attribute(SketchPlugin_Constraint::ENTITY_A());
-////    AttributePtr aPt2 = myBaseConstraint->attribute(SketchPlugin_Constraint::ENTITY_B());
-////
-////    BuilderPtr aBuilder = SketchSolver_Manager::instance()->builder();
-////    std::shared_ptr<GeomAPI_Pnt2d> aPoint1 = aBuilder->point(myStorage->entity(aPt1));
-////    EntityWrapperPtr anEntity2 = myStorage->entity(aPt2);
-////    std::shared_ptr<GeomAPI_Pnt2d> aPoint2 = aBuilder->point(anEntity2);
-////
-////////    if (aPoint1->distance(aPoint2) < tolerance) {
-////////      // Change X coordinate of second point to eliminate coincidence
-////////      ParameterWrapperPtr aX = aSubs.back()->parameters().front();
-////////      aX->setValue(aX->value() + 1.0);
-////////      myStorage->update(aX);
-////////    }
-    return;
+  if (getType() == CONSTRAINT_PT_LINE_DISTANCE) {
+    bool isSigned = myBaseConstraint->boolean(SketchPlugin_ConstraintDistance::SIGNED())->value();
+    if (myIsSigned == isSigned) {
+      // adjust auxiliary point for sign-keeping
+      if (isSigned) {
+        EntityWrapperPtr aDistPoint, aDistLine;
+        getPointAndLine(myBaseConstraint, myStorage, aDistPoint, aDistLine);
+        adjustOddPoint(aDistPoint, aDistLine, myOddPoint);
+      }
+    }
+    else {
+      // Adjust point-line distance by setting/removing additional constraints
+      if (isSigned)
+        addConstraintsToKeepSign();
+      else
+        removeConstraintsKeepingSign();
+    }
+    myIsSigned = isSigned;
   }
-
-  // Adjust point-line distance
-  if (fabs(myPrevValue) == fabs(aConstraint->value())) {
-    // sign of distance is not changed
-////    aConstraint->setValue(myPrevValue);
-////    myStorage->addConstraint(myBaseConstraint, aConstraint);
-    return;
-  }
-
-////  // Adjust the sign of constraint value
-////  BuilderPtr aBuilder = SketchSolver_Manager::instance()->builder();
-////
-////  std::shared_ptr<GeomAPI_Lin2d> aLine;
-////  std::shared_ptr<GeomAPI_Pnt2d> aPoint;
-////  for (int i = 0; i < 2; ++i) {
-////    AttributePtr anAttr = myBaseConstraint->attribute(SketchPlugin_Constraint::ATTRIBUTE(i));
-////    EntityWrapperPtr anEntity = myStorage->entity(anAttr);
-////    if (anEntity->type() == ENTITY_POINT)
-////      aPoint = aBuilder->point(anEntity);
-////    else if (anEntity->type() == ENTITY_LINE)
-////      aLine = aBuilder->line(anEntity);
-////  }
-////
-////  std::shared_ptr<GeomAPI_XY> aLineVec = aLine->direction()->xy();
-////  std::shared_ptr<GeomAPI_XY> aPtLineVec = aPoint->xy()->decreased(aLine->location()->xy());
-////  if (aLineVec->cross(aPtLineVec) * aConstraint->value() < 0.0)
-////    aConstraint->setValue(aConstraint->value() * (-1.0));
 }
 
 void SketchSolver_ConstraintDistance::update()
@@ -108,3 +127,85 @@ void SketchSolver_ConstraintDistance::update()
 
   SketchSolver_Constraint::update();
 }
+
+bool SketchSolver_ConstraintDistance::remove()
+{
+  removeConstraintsKeepingSign();
+  return SketchSolver_Constraint::remove();
+}
+
+void SketchSolver_ConstraintDistance::addConstraintsToKeepSign()
+{
+  std::shared_ptr<PlaneGCSSolver_Storage> aStorage =
+      std::dynamic_pointer_cast<PlaneGCSSolver_Storage>(myStorage);
+
+  ConstraintWrapperPtr aConstraint = aStorage->constraint(myBaseConstraint);
+  std::list<GCSConstraintPtr> aGCSConstraints = aConstraint->constraints();
+
+  // calculate projection of the point on the line and find a sign of a distance
+  EntityWrapperPtr aDistPoint, aDistLine;
+  getPointAndLine(myBaseConstraint, myStorage, aDistPoint, aDistLine);
+
+  std::shared_ptr<GeomAPI_Lin2d> aLine = PlaneGCSSolver_Tools::line(aDistLine);
+  std::shared_ptr<GeomAPI_Pnt2d> aPoint = PlaneGCSSolver_Tools::point(aDistPoint);
+
+  std::shared_ptr<GeomAPI_XY> aLineVec = aLine->direction()->xy();
+  std::shared_ptr<GeomAPI_XY> aPtLineVec = aPoint->xy()->decreased(aLine->location()->xy());
+  if (aLineVec->cross(aPtLineVec) >= 0.)
+    mySignValue = PI/2.0;
+  else
+    mySignValue = - PI/2.0;
+
+  // create auxiliary point on the line and set auxiliary constraints
+  myOddPoint = GCSPointPtr(new GCS::Point);
+  myOddPoint->x = aStorage->createParameter();
+  myOddPoint->y = aStorage->createParameter();
+  adjustOddPoint(aDistPoint, aDistLine, myOddPoint);
+
+  PointWrapperPtr aPointWr = std::dynamic_pointer_cast<PlaneGCSSolver_PointWrapper>(aDistPoint);
+  EdgeWrapperPtr anEdgeWr = std::dynamic_pointer_cast<PlaneGCSSolver_EdgeWrapper>(aDistLine);
+  std::shared_ptr<GCS::Line> aGCSLine = std::dynamic_pointer_cast<GCS::Line>(anEdgeWr->entity());
+  // point-on-line
+  GCSConstraintPtr aNewConstraint(new GCS::ConstraintPointOnLine(*myOddPoint, *aGCSLine));
+  aGCSConstraints.push_back(aNewConstraint);
+  // angle which keep orientation
+  aNewConstraint = GCSConstraintPtr(new GCS::ConstraintL2LAngle(
+      aGCSLine->p1, aGCSLine->p2, *myOddPoint, *(aPointWr->point()), &mySignValue));
+  aGCSConstraints.push_back(aNewConstraint);
+
+  aConstraint->setConstraints(aGCSConstraints);
+
+  aStorage->removeConstraint(myBaseConstraint);
+  aStorage->addConstraint(myBaseConstraint, aConstraint);
+}
+
+void SketchSolver_ConstraintDistance::removeConstraintsKeepingSign()
+{
+  if (!myOddPoint)
+    return; // no sign kept => nothing to remove
+
+  std::shared_ptr<PlaneGCSSolver_Storage> aStorage =
+      std::dynamic_pointer_cast<PlaneGCSSolver_Storage>(myStorage);
+
+  ConstraintWrapperPtr aConstraint = aStorage->constraint(myBaseConstraint);
+  std::list<GCSConstraintPtr> aGCSConstraints = aConstraint->constraints();
+
+  aStorage->removeConstraint(myBaseConstraint);
+
+  // remove parameters related to auxiliary point
+  GCS::SET_pD aParams;
+  aParams.insert(myOddPoint->x);
+  aParams.insert(myOddPoint->y);
+  aStorage->removeParameters(aParams);
+
+  // remove constraints keeping sign of point-line distance,
+  // not more than 2 additional constraints is possible
+  if (!aGCSConstraints.empty())
+    aGCSConstraints.pop_back();
+  if (!aGCSConstraints.empty())
+    aGCSConstraints.pop_back();
+  aConstraint->setConstraints(aGCSConstraints);
+  aStorage->addConstraint(myBaseConstraint, aConstraint);
+
+  myIsSigned = false;
+}