On 10/2/07, Gabe <[EMAIL PROTECTED]> wrote: > Hi > > > We are running several instances of mapserver on Linux and Windows. > > I have some maps that display a tiled aerial photography layer and some > other vector layers. The vector layers are polygons displayed using a > symbol with a transparent background. While the photography is switched off > the map is produced as a png and all works as expected. However when the > photography layer is on (and the image is produced as a jpg) the vector > layers no longer have any transparency and use instead the map background > colour. > > That happens on the windows boxes but not on the linux boxes. The > installations are as similar as possible and this effect has been consistent > since about mapserver 4.8 (now using 4.10.2 and 5.0.0) > > Is there a fix for this ?
Gabe, JPEG files do not support transparency so as long as the output format is JPEG there is no way to return files with transparent areas. Best regards, -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, [EMAIL PROTECTED] light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Programmer for Rent
