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 #ifndef SketchSolver_ConstraintDistance_H_
22 #define SketchSolver_ConstraintDistance_H_
24 #include <SketchSolver_Constraint.h>
26 /** \class SketchSolver_ConstraintDistance
28 * \brief Convert distance constraint to SolveSpace structure
30 class SketchSolver_ConstraintDistance : public SketchSolver_Constraint
33 /// Constructor based on SketchPlugin constraint
34 SketchSolver_ConstraintDistance(ConstraintPtr theConstraint) :
35 SketchSolver_Constraint(theConstraint),
40 /// \brief Update constraint
41 virtual void update();
44 /// \brief Generate list of attributes of constraint in order useful for constraints
45 /// \param[out] theValue numerical characteristic of constraint (e.g. distance)
46 /// \param[out] theAttributes list of attributes to be filled
47 virtual void getAttributes(EntityWrapperPtr& theValue,
48 std::vector<EntityWrapperPtr>& theAttributes);
50 /// \brief This method is used in derived objects to check consistence of constraint.
51 /// E.g. the distance between line and point may be signed.
52 virtual void adjustConstraint();
55 void addConstraintsToKeepSign();
56 void removeConstraintsKeepingSign();
59 double myPrevValue; ///< previous value of distance (for correct calculation of a distance sign)
60 bool myIsSigned; ///< true if the sign of point-line distance should be kept everytime
61 GCSPointPtr myOddPoint; ///< auxiliary point to keep sign of distance