Issue #604 Creation of an unexpected line in the Sketcher

[modules/shaper.git] / src / SketchSolver / SketchSolver_ConstraintDistance.h

diff --git a/src/SketchSolver/SketchSolver_ConstraintDistance.h b/src/SketchSolver/SketchSolver_ConstraintDistance.h
index ff594c10cfc7c13577b6ae9feebcb8feb947f780..ba1827208743f01e074cace7fcdf38680ea31b10 100644 (file)
--- a/src/SketchSolver/SketchSolver_ConstraintDistance.h
+++ b/src/SketchSolver/SketchSolver_ConstraintDistance.h
@@ -21,6 +21,9 @@ public:
       SketchSolver_Constraint(theConstraint), myType(SLVS_C_UNKNOWN)
   {}
 
+  /// \brief Update constraint
+  virtual void update(ConstraintPtr theConstraint = ConstraintPtr());
+
   virtual int getType() const
   {return myType; }
 
@@ -28,8 +31,13 @@ protected:
   /// \brief Converts SketchPlugin constraint to a list of SolveSpace constraints
   virtual void process();
 
+  /// \brief This method is used in derived objects to check consistence of constraint.
+  ///        E.g. the distance between line and point may be signed.
+  virtual void adjustConstraint();
+
 private:
   int myType; ///< type of constraint (applicable: SLVS_C_PT_PT_DISTANCE, SLVS_C_PT_LINE_DISTANCE)
+  double myPrevValue; ///< previous value of distance (for correct calculation of a distance sign)
 };
 
 #endif