- if (!aLine)
- return ConstraintWrapperPtr();
-
- std::list<GCSConstraintPtr> aConstrList;
- aConstrList.push_back(
- GCSConstraintPtr(new GCS::ConstraintPointOnPerpBisector(*aPoint, aLine->p1, aLine->p2)));
- aConstrList.push_back(GCSConstraintPtr(new GCS::ConstraintPointOnLine(*aPoint, *aLine)));
+ if (aLine) {
+ aConstrList.push_back(GCSConstraintPtr(new GCS::ConstraintPointOnLine(*aPoint, *aLine)));
+ aConstrList.push_back(
+ GCSConstraintPtr(new GCS::ConstraintPointOnPerpBisector(*aPoint, aLine->p1, aLine->p2)));
+ }
+ else {
+ std::shared_ptr<GCS::Arc> anArc = std::dynamic_pointer_cast<GCS::Arc>(theEntity->entity());
+ if (anArc) {
+ double* u = theAuxParameters->point()->x;
+ double* diff = theAuxParameters->point()->y;
+ *u = (*anArc->startAngle + *anArc->endAngle) * 0.5;
+ *diff = (*anArc->endAngle - *anArc->startAngle) * 0.5;
+
+ aConstrList.push_back(GCSConstraintPtr(
+ new GCS::ConstraintCurveValue(*aPoint, aPoint->x, *anArc, u)));
+ aConstrList.push_back(GCSConstraintPtr(
+ new GCS::ConstraintCurveValue(*aPoint, aPoint->y, *anArc, u)));
+ aConstrList.push_back(GCSConstraintPtr(
+ new GCS::ConstraintDifference(anArc->startAngle, u, diff)));
+ aConstrList.push_back(GCSConstraintPtr(
+ new GCS::ConstraintDifference(u, anArc->endAngle, diff)));
+ }
+ }