1 // Copyright (C) 2014-2017 CEA/DEN, EDF R&D
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.
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.
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
17 // See http://www.salome-platform.org/ or
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
21 #include <SketchSolver_ConstraintDistance.h>
22 #include <SketchSolver_Error.h>
23 #include <SketchSolver_Manager.h>
25 #include <PlaneGCSSolver_EdgeWrapper.h>
26 #include <PlaneGCSSolver_PointWrapper.h>
27 #include <PlaneGCSSolver_Storage.h>
28 #include <PlaneGCSSolver_Tools.h>
30 #include <SketchPlugin_ConstraintDistanceHorizontal.h>
31 #include <SketchPlugin_ConstraintDistanceVertical.h>
33 #include <GeomAPI_Dir2d.h>
34 #include <GeomAPI_Lin2d.h>
35 #include <GeomAPI_Pnt2d.h>
36 #include <GeomAPI_XY.h>
41 void SketchSolver_ConstraintDistance::getAttributes(
42 EntityWrapperPtr& theValue,
43 std::vector<EntityWrapperPtr>& theAttributes)
45 SketchSolver_Constraint::getAttributes(theValue, theAttributes);
46 if (!myErrorMsg.empty() || !theAttributes[0]) {
47 theAttributes.clear();
51 if (theAttributes[1]) {
52 if (myBaseConstraint->getKind() == SketchPlugin_ConstraintDistanceHorizontal::ID())
53 myType = CONSTRAINT_HORIZONTAL_DISTANCE;
54 else if (myBaseConstraint->getKind() == SketchPlugin_ConstraintDistanceVertical::ID())
55 myType = CONSTRAINT_VERTICAL_DISTANCE;
57 myType = CONSTRAINT_PT_PT_DISTANCE;
58 } else if (theAttributes[2] && theAttributes[2]->type() == ENTITY_LINE)
59 myType = CONSTRAINT_PT_LINE_DISTANCE;
61 theAttributes.clear();
66 void SketchSolver_ConstraintDistance::adjustConstraint()
68 if (getType() == CONSTRAINT_PT_LINE_DISTANCE) {
69 bool isSigned = myBaseConstraint->boolean(SketchPlugin_ConstraintDistance::SIGNED())->value();
70 if (myIsSigned == isSigned)
71 return; // distance type is not changed => nothing to adjust
73 // Adjust point-line distance by setting/removing additional constraints
75 addConstraintsToKeepSign();
77 removeConstraintsKeepingSign();
78 myIsSigned = isSigned;
82 void SketchSolver_ConstraintDistance::update()
84 ConstraintWrapperPtr aConstraint = myStorage->constraint(myBaseConstraint);
85 myPrevValue = aConstraint->value();
87 SketchSolver_Constraint::update();
90 bool SketchSolver_ConstraintDistance::remove()
92 removeConstraintsKeepingSign();
93 return SketchSolver_Constraint::remove();
96 void SketchSolver_ConstraintDistance::addConstraintsToKeepSign()
98 std::shared_ptr<PlaneGCSSolver_Storage> aStorage =
99 std::dynamic_pointer_cast<PlaneGCSSolver_Storage>(myStorage);
101 ConstraintWrapperPtr aConstraint = aStorage->constraint(myBaseConstraint);
102 std::list<GCSConstraintPtr> aGCSConstraints = aConstraint->constraints();
104 // calculate projection of the point on the line and find a sign of a distance
105 EntityWrapperPtr aDistPoint, aDistLine;
106 for (int i = 0; i < 2; ++i) {
107 AttributePtr anAttr = myBaseConstraint->attribute(SketchPlugin_Constraint::ATTRIBUTE(i));
108 EntityWrapperPtr anEntity = myStorage->entity(anAttr);
109 if (anEntity->type() == ENTITY_POINT)
110 aDistPoint = anEntity;
111 else if (anEntity->type() == ENTITY_LINE)
112 aDistLine = anEntity;
114 std::shared_ptr<GeomAPI_Lin2d> aLine = PlaneGCSSolver_Tools::line(aDistLine);
115 std::shared_ptr<GeomAPI_Pnt2d> aPoint = PlaneGCSSolver_Tools::point(aDistPoint);
117 std::shared_ptr<GeomAPI_XY> aLineVec = aLine->direction()->xy();
118 std::shared_ptr<GeomAPI_XY> aPtLineVec = aPoint->xy()->decreased(aLine->location()->xy());
119 if (aLineVec->cross(aPtLineVec) >= 0.)
120 mySignValue = PI/2.0;
122 mySignValue = - PI/2.0;
123 double aDot = aPtLineVec->dot(aLineVec);
124 std::shared_ptr<GeomAPI_XY> aProjectedPnt =
125 aLine->location()->xy()->added(aLineVec->multiplied(aDot));
127 // create auxiliary point on the line and set auxiliary constraints
128 myOddPoint = GCSPointPtr(new GCS::Point);
129 myOddPoint->x = aStorage->createParameter();
130 myOddPoint->y = aStorage->createParameter();
131 *(myOddPoint->x) = aProjectedPnt->x();
132 *(myOddPoint->y) = aProjectedPnt->y();
134 PointWrapperPtr aPointWr = std::dynamic_pointer_cast<PlaneGCSSolver_PointWrapper>(aDistPoint);
135 EdgeWrapperPtr anEdgeWr = std::dynamic_pointer_cast<PlaneGCSSolver_EdgeWrapper>(aDistLine);
136 std::shared_ptr<GCS::Line> aGCSLine = std::dynamic_pointer_cast<GCS::Line>(anEdgeWr->entity());
138 GCSConstraintPtr aNewConstraint(new GCS::ConstraintPointOnLine(*myOddPoint, *aGCSLine));
139 aGCSConstraints.push_back(aNewConstraint);
140 // angle which keep orientation
141 aNewConstraint = GCSConstraintPtr(new GCS::ConstraintL2LAngle(
142 aGCSLine->p1, aGCSLine->p2, *myOddPoint, *(aPointWr->point()), &mySignValue));
143 aGCSConstraints.push_back(aNewConstraint);
145 aConstraint->setConstraints(aGCSConstraints);
147 aStorage->removeConstraint(myBaseConstraint);
148 aStorage->addConstraint(myBaseConstraint, aConstraint);
151 void SketchSolver_ConstraintDistance::removeConstraintsKeepingSign()
154 return; // no sign kept => nothing to remove
156 std::shared_ptr<PlaneGCSSolver_Storage> aStorage =
157 std::dynamic_pointer_cast<PlaneGCSSolver_Storage>(myStorage);
159 ConstraintWrapperPtr aConstraint = aStorage->constraint(myBaseConstraint);
160 std::list<GCSConstraintPtr> aGCSConstraints = aConstraint->constraints();
162 aStorage->removeConstraint(myBaseConstraint);
164 // remove parameters related to auxiliary point
166 aParams.insert(myOddPoint->x);
167 aParams.insert(myOddPoint->y);
168 aStorage->removeParameters(aParams);
170 // remove constraints keeping sign of point-line distance,
171 // not more than 2 additional constraints is possible
172 if (!aGCSConstraints.empty())
173 aGCSConstraints.pop_back();
174 if (!aGCSConstraints.empty())
175 aGCSConstraints.pop_back();
176 aConstraint->setConstraints(aGCSConstraints);
177 aStorage->addConstraint(myBaseConstraint, aConstraint);