1 // Copyright (C) 2014-2023 CEA, EDF
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
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20 #ifndef SketchSolver_ConstraintDistance_H_
21 #define SketchSolver_ConstraintDistance_H_
23 #include <SketchSolver_Constraint.h>
25 /** \class SketchSolver_ConstraintDistance
27 * \brief Convert distance constraint to SolveSpace structure
29 class SketchSolver_ConstraintDistance : public SketchSolver_Constraint
32 /// Constructor based on SketchPlugin constraint
33 SketchSolver_ConstraintDistance(ConstraintPtr theConstraint) :
34 SketchSolver_Constraint(theConstraint),
39 /// \brief Update constraint
40 virtual void update();
42 /// \brief Remove constraint
43 virtual bool remove();
45 /// \brief Notify this object about the feature is changed somewhere
46 virtual void notify(const FeaturePtr& theFeature, PlaneGCSSolver_Update*);
49 /// \brief Generate list of attributes of constraint in order useful for constraints
50 /// \param[out] theValue numerical characteristic of constraint (e.g. distance)
51 /// \param[out] theAttributes list of attributes to be filled
52 virtual void getAttributes(EntityWrapperPtr& theValue,
53 std::vector<EntityWrapperPtr>& theAttributes);
55 /// \brief This method is used in derived objects to check consistence of constraint.
56 /// E.g. the distance between line and point may be signed.
57 virtual void adjustConstraint();
60 void addConstraintsToKeepSign();
61 void removeConstraintsKeepingSign();
64 double myPrevValue; ///< previous value of distance (for correct calculation of a distance sign)
65 bool myIsSigned; ///< true if the sign of point-line distance should be kept everytime
66 GCSPointPtr myOddPoint; ///< auxiliary point to keep sign of distance