SketchSolver library refactoring

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

diff --git a/src/SketchSolver/SketchSolver_Constraint.h b/src/SketchSolver/SketchSolver_Constraint.h
index 3640d881dc89eb1d012caa6b278ba919f78cbbae..6cfe355f8aa159338b4e2d1b8a3c68a6beeafe92 100644 (file)
--- a/src/SketchSolver/SketchSolver_Constraint.h
+++ b/src/SketchSolver/SketchSolver_Constraint.h
@@ -91,6 +91,14 @@ protected:
   /// \brief Create or change SlveSpace entity according to the given feature
   Slvs_hEntity changeEntity(FeaturePtr theFeature, int& theType);
 
+  /// \brief Calculate middle point on the specified entity
+  /// \param[in]  theEntity  arc or line
+  /// \param[in]  theCoeff   is a value in [0.0, 1.0] which shows the position of the point on the entity (0.0 - start point, 1.0 - end point)
+  /// \param[out] theX       X coordinate of middle point
+  /// \param[out] theY       Y coordinate of middle point
+  void calculateMiddlePoint(const Slvs_Entity& theEntity, double theCoeff,
+                            double& theX, double& theY) const;
+
   /// \brief Removes the links to unused entities
   void cleanRemovedEntities();
 
@@ -98,6 +106,10 @@ protected:
   void cleanErrorMsg()
   { myErrorMsg.clear(); }
 
+private:
+  /// \brief Sets error, if the attribute is not initialized
+  bool isInitialized(AttributePtr theAttribute);
+
 protected:
   SketchSolver_Group* myGroup; ///< the group which contains current constraint
   ConstraintPtr myBaseConstraint; ///< SketchPlugin constraint