One direction of a polynomial transform. The input is normalized first, u = (x - origin[0]) / scale, v = (y - origin[1]) / scale, then X = Σ x[k]·term_k(u, v) with terms 1, u, v, u², uv, v² (order 2) followed by u³, u²v, uv², v³ (order 3).
u = (x - origin[0]) / scale
v = (y - origin[1]) / scale
X = Σ x[k]·term_k(u, v)
1, u, v, u², uv, v²
u³, u²v, uv², v³
Readonly
Subtracted from the input before scaling.
Divides the input after subtracting origin.
origin
Coefficients of X, one per term.
Coefficients of Y, one per term.
One direction of a polynomial transform. The input is normalized first,
u = (x - origin[0]) / scale,v = (y - origin[1]) / scale, thenX = Σ x[k]·term_k(u, v)with terms1, u, v, u², uv, v²(order 2) followed byu³, u²v, uv², v³(order 3).