svg("<!-- x=\"%f\" y=\"%f\" -->\n", scale_x, scale_y);
svg("<!-- rel=\"%d\" f=\"%d\" -->\n", relative, filter);
svg("<!-- p=\"%d\" e=\"%d\" -->\n", pss, entropy);
svg("<!-- x=\"%f\" y=\"%f\" -->\n", scale_x, scale_y);
svg("<!-- rel=\"%d\" f=\"%d\" -->\n", relative, filter);
svg("<!-- p=\"%d\" e=\"%d\" -->\n", pss, entropy);