ism3d.arts.lens.sie_rt

ism3d.arts.lens.sie_rt(x, y, theta_e=1, xc=0, yc=0, pa=0, q=1.0, method='ls')

performe ray-tracing for a SIE potential two methods: abs, using sie_grad_abs()

ls, using lenstronomy

theta_e: Einstein radius xc,yc: x/y position of center pa: P.A. (degree) q: axiasratio b/a