(lly, llx, _) = tx.TransformPoint(srs_trans[0], srs_trans[3] + srs_trans[5] * y_size)
(lry, lrx...srs_trans[3] + srs_trans[4] * x_size + srs_trans[5] * y_size)
min_x = min(ulx, urx, llx, lrx...)
max_x = max(ulx, urx, llx, lrx)
min_y = min(uly, ury, lly, lry)
max_y = max(uly, ury, lly