The abstract class GeometryCurve is the root class of all curve objects. Return the shape for the geometry. Discretizes the curve using a given deflection or number of points and returns a list of points Computes the point of parameter u on this curve Computes the tangent of parameter u on this curve Make a ruled surface of this and the given curves Get intersection points with another curve lying on a plane. Returns the parameter on the curve of the nearest orthogonal projection of the point. Returns the value of the first parameter. Returns the value of the last parameter.