Purpose
Usage
Click the edit scale button to activate it. The contour window will be replaced
by the defcurve window. An axis (purple line) is displayed at x=0
position. A default scale curve is displayed at x=1 position (no scaling).
The points on the scale curve can be moved to scale the Nurbs model in relation to
the spine. First choose the move option in the points menu. The points can then be moved by selecting them with the left mouse button
and moving them in the x direction while keeping the middle mouse button pressed.
Moving the points closer to the axis will scale the model down.
Additional points can be added on the scale curve in the points menu.
Note that the control points can be moved only in the x (horizontal)
direction.