Returns a point within the curve at position "offset", where "offset" is measured as a pixel distance along the curve.
To do that, it finds the two cached points where the "offset" lies between, then interpolates the values. This interpolation is cubic if "cubic" is set to true, or linear if set to false.
Cubic interpolation tends to follow the curves better, but linear is faster (and often, precise enough).
Returns a point within the curve at position "offset", where "offset" is measured as a pixel distance along the curve. To do that, it finds the two cached points where the "offset" lies between, then interpolates the values. This interpolation is cubic if "cubic" is set to true, or linear if set to false. Cubic interpolation tends to follow the curves better, but linear is faster (and often, precise enough).