Yes, we know, but we just tried to bypass the problem by fooling Mapserver. And that did not work :-) That was just a test, which might show that Mapserver is filling in some Mapserver defined color in the waterlayer when it shouldn't.
Espen 2009/10/29 Stephen Woodbridge <[email protected]>: > The correct usage of the palette file is to NOT fill it up with 256 colors. > What you want to do it get all the colors that you explicitly reference in > the mapfile and place them in the palette file. then mapserver will initiate > you file with these colors. Then when you antialias something mapserver will > use the remain color slots and fill them with the antialiased generated > colors. > > -Steve W > > Espen Isaksen wrote: >> >> No, that color is not present in the mapfile or in the palette.txt >> file. We use the color 108 189 243 on lakes. >> >> This is happening on other features(with other colors) for us as well. >> >> I did test to fill up the palette file with the same colors more than >> one time in order to get 256 colers in the file and that actually >> fixed the problem. However, it created all other kind of problems with >> the colors, especially with anti-aliasing on labels. >> >> Espen >> >> >> >> 2009/10/28 Steve Lime <[email protected]>: >>> >>> Is the color 125,202,228 (the water value in the image on the left) used >>> in your mapfile? >>> >>>>>> On 10/28/2009 at 5:25 AM, in message >>> >>> <[email protected]>, Espen >>> Isaksen >>> <[email protected]> wrote: >>>> >>>> Hi! >>>> >>>> We are testing out using a palette file in our outputformat to >>>> decrease file size in the png output. Most of the time this works >>>> great, but some times when we are tiling the data we get some errors. >>>> The color seem to shift to a similar color from one tile to another. >>>> >>>> We have added the colors we use in the map file in the palette.txt >>>> file. The documentation says it needs 256 colors in the map file, but >>>> we do not use that many colors right now. (we tried adding the same >>>> color more than one time, but that created other problems....) >>>> >>>> I have attached a png file showing the problem across a lake. The >>>> color on the right side is the correct color and the color we have >>>> added to the palette file. The color on the left side of the lake is >>>> not something we have set. >>>> >>>> I have also added the palette.txt file and the outputformat we use is >>>> this: >>>> >>>> OUTPUTFORMAT >>>> NAME "png" >>>> DRIVER "AGG/PNG" >>>> MIMETYPE "image/png" >>>> IMAGEMODE "rgb" >>>> EXTENSION "png" >>>> FORMATOPTION "PALETTE_FORCE=TRUE" >>>> FORMATOPTION "PALETTE=/data/maps/palette.txt" >>>> END >>>> >>>> Does anybody know why this happens in Mapserver and how to fix it? >>>> >>>> Espen >>> >> _______________________________________________ >> mapserver-users mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/mapserver-users > > _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
