Curves

The term "Curve" is used in the program and its documentation in two ways, while the meaning depends on where it is used.

1. The term Curve is a general term for objects Line, Polyline, Arc, Circle, and Spline.
2. The term Curve can also refer to multiple objects (ad 1/) connected in their boundary points. This second meaning of the term Curve is mainly used in connection with a "Boundary Curve", "Internal Curve", and so on.

There are several rules that need to be followed during the definition of a Curve:

• Curves cannot intersect each other or themselves except at their definition nodes.
• No point that is not either its definition or Parametric Point can lie on a Curve.
• Curves are always defined using their definition points (their indexes). The list of indexes can be checked or changed using the Edit Curve dialog (the first Tab "General").