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 static void getPointAndLine(const ConstraintPtr& theConstraint, const StoragePtr& theStorage,
42 EntityWrapperPtr& thePoint, EntityWrapperPtr& theLine)
44 for (int i = 0; i < 2; ++i) {
45 AttributePtr anAttr = theConstraint->attribute(SketchPlugin_Constraint::ATTRIBUTE(i));
46 EntityWrapperPtr anEntity = theStorage->entity(anAttr);
47 if (anEntity->type() == ENTITY_POINT)
49 else if (anEntity->type() == ENTITY_LINE)
54 static void adjustOddPoint(const EntityWrapperPtr& theDistPoint,
55 const EntityWrapperPtr& theDistLine,
56 GCSPointPtr& theOddPoint)
61 std::shared_ptr<GeomAPI_Lin2d> aLine = PlaneGCSSolver_Tools::line(theDistLine);
62 std::shared_ptr<GeomAPI_Pnt2d> aPoint = PlaneGCSSolver_Tools::point(theDistPoint);
64 std::shared_ptr<GeomAPI_XY> aLineVec = aLine->direction()->xy();
65 std::shared_ptr<GeomAPI_XY> aPtLineVec = aPoint->xy()->decreased(aLine->location()->xy());
67 double aDot = aPtLineVec->dot(aLineVec);
68 std::shared_ptr<GeomAPI_XY> aProjectedPnt =
69 aLine->location()->xy()->added(aLineVec->multiplied(aDot));
71 *(theOddPoint->x) = aProjectedPnt->x();
72 *(theOddPoint->y) = aProjectedPnt->y();
76 void SketchSolver_ConstraintDistance::getAttributes(
77 EntityWrapperPtr& theValue,
78 std::vector<EntityWrapperPtr>& theAttributes)
80 SketchSolver_Constraint::getAttributes(theValue, theAttributes);
81 if (!myErrorMsg.empty() || !theAttributes[0]) {
82 theAttributes.clear();
86 if (theAttributes[1]) {
87 if (myBaseConstraint->getKind() == SketchPlugin_ConstraintDistanceHorizontal::ID())
88 myType = CONSTRAINT_HORIZONTAL_DISTANCE;
89 else if (myBaseConstraint->getKind() == SketchPlugin_ConstraintDistanceVertical::ID())
90 myType = CONSTRAINT_VERTICAL_DISTANCE;
92 myType = CONSTRAINT_PT_PT_DISTANCE;
93 } else if (theAttributes[2] && theAttributes[2]->type() == ENTITY_LINE)
94 myType = CONSTRAINT_PT_LINE_DISTANCE;
96 theAttributes.clear();
101 void SketchSolver_ConstraintDistance::adjustConstraint()
103 if (getType() == CONSTRAINT_PT_LINE_DISTANCE) {
104 bool isSigned = myBaseConstraint->boolean(SketchPlugin_ConstraintDistance::SIGNED())->value();
105 if (myIsSigned == isSigned) {
106 // adjust auxiliary point for sign-keeping
108 EntityWrapperPtr aDistPoint, aDistLine;
109 getPointAndLine(myBaseConstraint, myStorage, aDistPoint, aDistLine);
110 adjustOddPoint(aDistPoint, aDistLine, myOddPoint);
114 // Adjust point-line distance by setting/removing additional constraints
116 addConstraintsToKeepSign();
118 removeConstraintsKeepingSign();
120 myIsSigned = isSigned;
124 void SketchSolver_ConstraintDistance::update()
126 ConstraintWrapperPtr aConstraint = myStorage->constraint(myBaseConstraint);
127 myPrevValue = aConstraint->value();
129 SketchSolver_Constraint::update();
132 bool SketchSolver_ConstraintDistance::remove()
134 removeConstraintsKeepingSign();
135 return SketchSolver_Constraint::remove();
138 void SketchSolver_ConstraintDistance::addConstraintsToKeepSign()
140 std::shared_ptr<PlaneGCSSolver_Storage> aStorage =
141 std::dynamic_pointer_cast<PlaneGCSSolver_Storage>(myStorage);
143 ConstraintWrapperPtr aConstraint = aStorage->constraint(myBaseConstraint);
144 std::list<GCSConstraintPtr> aGCSConstraints = aConstraint->constraints();
146 // calculate projection of the point on the line and find a sign of a distance
147 EntityWrapperPtr aDistPoint, aDistLine;
148 getPointAndLine(myBaseConstraint, myStorage, aDistPoint, aDistLine);
150 std::shared_ptr<GeomAPI_Lin2d> aLine = PlaneGCSSolver_Tools::line(aDistLine);
151 std::shared_ptr<GeomAPI_Pnt2d> aPoint = PlaneGCSSolver_Tools::point(aDistPoint);
153 std::shared_ptr<GeomAPI_XY> aLineVec = aLine->direction()->xy();
154 std::shared_ptr<GeomAPI_XY> aPtLineVec = aPoint->xy()->decreased(aLine->location()->xy());
155 if (aLineVec->cross(aPtLineVec) >= 0.)
156 mySignValue = PI/2.0;
158 mySignValue = - PI/2.0;
160 // create auxiliary point on the line and set auxiliary constraints
161 myOddPoint = GCSPointPtr(new GCS::Point);
162 myOddPoint->x = aStorage->createParameter();
163 myOddPoint->y = aStorage->createParameter();
164 adjustOddPoint(aDistPoint, aDistLine, myOddPoint);
166 PointWrapperPtr aPointWr = std::dynamic_pointer_cast<PlaneGCSSolver_PointWrapper>(aDistPoint);
167 EdgeWrapperPtr anEdgeWr = std::dynamic_pointer_cast<PlaneGCSSolver_EdgeWrapper>(aDistLine);
168 std::shared_ptr<GCS::Line> aGCSLine = std::dynamic_pointer_cast<GCS::Line>(anEdgeWr->entity());
170 GCSConstraintPtr aNewConstraint(new GCS::ConstraintPointOnLine(*myOddPoint, *aGCSLine));
171 aGCSConstraints.push_back(aNewConstraint);
172 // angle which keep orientation
173 aNewConstraint = GCSConstraintPtr(new GCS::ConstraintL2LAngle(
174 aGCSLine->p1, aGCSLine->p2, *myOddPoint, *(aPointWr->point()), &mySignValue));
175 aGCSConstraints.push_back(aNewConstraint);
177 aConstraint->setConstraints(aGCSConstraints);
179 aStorage->removeConstraint(myBaseConstraint);
180 aStorage->addConstraint(myBaseConstraint, aConstraint);
183 void SketchSolver_ConstraintDistance::removeConstraintsKeepingSign()
186 return; // no sign kept => nothing to remove
188 std::shared_ptr<PlaneGCSSolver_Storage> aStorage =
189 std::dynamic_pointer_cast<PlaneGCSSolver_Storage>(myStorage);
191 ConstraintWrapperPtr aConstraint = aStorage->constraint(myBaseConstraint);
192 std::list<GCSConstraintPtr> aGCSConstraints = aConstraint->constraints();
194 aStorage->removeConstraint(myBaseConstraint);
196 // remove parameters related to auxiliary point
198 aParams.insert(myOddPoint->x);
199 aParams.insert(myOddPoint->y);
200 aStorage->removeParameters(aParams);
202 // remove constraints keeping sign of point-line distance,
203 // not more than 2 additional constraints is possible
204 if (!aGCSConstraints.empty())
205 aGCSConstraints.pop_back();
206 if (!aGCSConstraints.empty())
207 aGCSConstraints.pop_back();
208 aConstraint->setConstraints(aGCSConstraints);
209 aStorage->addConstraint(myBaseConstraint, aConstraint);