| Spline data (see Notes: below) Notes: The curve_data spline is in the space defined by 0,0 mapping to the detail view's reference point, the X and Y directions mapping to X and Y on the screen, and the unit length being one inch in the top model of the view. To map this to world space, first scale the spline by inch-to-top-model-unit, then by model-to-world (that is, the scale of the view's transformation matrix), then translate it by the reference point. To map a spline in world space for use here, translate it by the reference point, then scale by world-to-model (inverse of the scale of the view's transformation matrix), and scale by top-model-unit-to-inch. |