get-coeffs-x-from-y

function eGetCoeffsXFromY(ps: number[][], y: number): number[][] | undefined

Defined in x-from-y/expansion/get-coeffs-x-from-y.ts:17

Returns a polynomial whose roots are the x coordinates given the y coordinate of the given bezier curve.

• the returned coefficients are given exactly as Shewchuk expansions
• this is calculated by swapping the x and y coordinates of the bezier (i.e. reflecting it in the line y = x) and getting the polynomial whose roots are the y coordinates given the x coordinate (which is the given y) of the reflected curve

Parameters:

Name	Type	Description
ps	number[][]	an order 1, 2 or 3 bezier curve
y	number	the y coordinate