/// <inheritdoc />
protected override void OnForward(double[] lp, double[] xy, int startIndex, int numPoints)
{
for (int i = startIndex; i < startIndex + numPoints; i++)
{
int phi = i * 2 + PHI;
int lam = i * 2 + LAMBDA;
int x = i * 2 + X;
int y = i * 2 + Y;
double[] p = new double[2];
lp[phi] = (lp[phi] - Phi0) * RAD_TO_SEC5;
p[R] = _tpsi[NTPSI];
for (int j = NTPSI - 1; j >= 0; j--)
{
p[R] = _tpsi[j] + lp[phi] * p[R];
}
p[R] *= lp[phi];
p[I] = lp[lam];
p = Proj.Zpoly1(p, _bf, NBF);
xy[x] = p[I];
xy[y] = p[R];
}
}
