Transform one [x,y] into another using a linear model of the type produced by the slaFitxy routine.
xc1 double x-coordinate yc1 double y-coordinate
coeffs double[6] transformation coefficients (see note) *xc2 double x-coordinate *yc2 double y-coordinate The model relates two sets of [x,y] coordinates as follows.
coeffs[0] = a coeffs[1] = b coeffs[2] = c coeffs[3] = d coeffs[4] = e coeffs[5] = f
xc2 = a + b*xc1 + c*yc1 yc2 = d + e*xc1 + f*yc1 See also slaFitxy, slaPxy, slaInvf, slaDcmpf. P.T.Wallace Starlink 22 December 1993