Scale with deformation as a function of distance to an axis.

Define the axis by clicking two points on a View window. Distance to the axis is calculated for each point to get a deformation parameter. The control curve is then evaluated by the deformation parameter to get the amount of deformation. Click two points on a View window to define the scaling center and scale. Move the mouse to deform and click to accept the tool.

The Scale2D tool has the following options: