ImageAntialias

Gidday, Not sure if this is best suited for the devel list or the user list, but here goes.: Antialiasing is a basic requirement for generating professional-quality pictures. Unfortunately the php-gd function imageantialias needs work. Only a small subset of drawing primitives currently make use of antialiasing. See http://www.php.net/manual/en/function.imageantialias.php To quote, "This function is currently not documented; only the argument list is available." So there is no documented expected behaviour for imageantialias. The only hint of what it can and can't do is in a user-contributed comment on the same page (provided by Yours Truly). Yet at least one bug report http://bugs.php.net/bug.php?id=24798 has been marked as 'bogus', although it is at worst is a reasonable feature request if not a bug. Actually I propose a new method for antialiasing: bool imageantialias ( resource im, bool on, int MODE ) where MODE is one of: AA_TRADITIONAL - Perform antialiasing the same way it's done now - that is to use a different antialiasing function for each primitive, most of which haven't yet been implemented. AA_SCALE - Draw the image to an internal buffer at 2x the requested size, using regular non-antialiased primitives, and downscale the result to the requested size with bilinear filtering. This produces nice antialiased images with very little duplication of code across primitives. Line thickness may need to be doubled to give the right effect. AA_TEXT - Draw/downsample the image as above, but omit text objects until after the image has been downsampled. This allows for clearer but non-antialiased text. Greg