If my memory is correct you first do a "createcoloralpha(r,g,b,a)" where r,g,b & a are 8 bits values but I don't remember if 0 is full transparent or full opaque. You then use that color as usual. You may have to first create a fully transparent color and use it to fill the entire image otherwise the resulting image ends up opaque.
Yann Le 7 juil. 09 à 23:56, OJ W a écrit : > p.s. I'm still trying to figure-out transparency in GD. Anyone know > how to put a semitransparent line on a transparent background, and > save the result as PNG? _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
