[chiplotle-discuss] Catmull-Rom

[francesco fantoni]

added Catmull compound class, for Catmull-Rom curve interpolation.
Similar to Path command, it draws a Catmull-Rom cspline, first and last
control points are not drawn as part of the curve but just define the
starting and ending tangent, the intermediate control points are on the
curve.

Catmull(control_points, xy=None, points_to_compute=None

best, francesco