if (isset($gconf['min_y'])) { $gOpts .= ' --lower-limit '.$gconf['min_y']; }
if (isset($gconf['max_y'])) { $gOpts .= ' --upper-limit '.$gconf['max_y']; }
if (isset($gconf['fix_scale_y']) && $gconf['fix_scale_y']) { $gOpts .= ' --rigid'; }
if (isset($gconf['grid_x'])) { $gOpts .= ' --x-grid '.$gconf['grid_x']; }
if (isset($gconf['grid_y'])) { $gOpts .= ' --y-grid '.$gconf['grid_y']; }
if (isset($gconf['min_y'])) { $gOpts .= ' --lower-limit '.$gconf['min_y']; }
if (isset($gconf['max_y'])) { $gOpts .= ' --upper-limit '.$gconf['max_y']; }
if (isset($gconf['fix_scale_y']) && $gconf['fix_scale_y']) { $gOpts .= ' --rigid'; }
if (isset($gconf['grid_x'])) { $gOpts .= ' --x-grid '.$gconf['grid_x']; }
if (isset($gconf['grid_y'])) { $gOpts .= ' --y-grid '.$gconf['grid_y']; }