symbols changing color

[Wim Blanken]

Hello John,

Seems this is the problem with the maximum of assigned colors (256) that is
possible using gif.
Have you tried setting the output IMAGETYPE to png24.

Regards,

Wim Blanken
GIS consultant from the Netherlands

----- Original Message -----
From: "John Bolster" <jb at NUCOMP.COM>
To: <MAPSERVER-USERS at LISTS.UMN.EDU>
Sent: Sunday, October 10, 2004 1:25 AM
Subject: [UMN_MAPSERVER-USERS] symbols changing color


> Hi all,
>
> I defined a gif image as an interstate shield used in an annotation layer.
> Now when I zoom in and out the color of the shields change on the output
> map. The bulk of each shield should be pure blue, yet it becomes purple
> sometimes and a light blue other times. They vary when I change the line
> color of the underlying interstate line layer and also when I turn on and
> off other layers (county lines and place polygons). Below are how my
> symbol
> and annotation layer are defined. I can't see how mapserver is changing
> the
> color of the gif--any suggestions on how I can get it to stay the same
> color
> at all scales?
>
> MapServer version 4.2.2 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
> SUPPORTS=FREETYPE INPUT=TIFF INPUT=EPPL7 INPUT=JPEG INPUT=SHAPEFILE
>
> Thanks in advance,
> John Bolster
>
>    SYMBOL
>        NAME 'int'
>        TYPE pixmap
>        IMAGE "./intsh.gif"
>    END
>
>    LAYER
>      NAME intlabels
>      GROUP "hwy"
>      TYPE annotation
>      STATUS off
>      DATA nhpn
>      PROJECTION proj=latlong END
>      CLASSITEM 'type'
>      LABELITEM 'num'
>      LABELMAXSCALE 4000000
>      CLASS
>        EXPRESSION "I"
>        COLOR 0 0 0
>        SYMBOL "int"
>        LABEL
>          SIZE tiny
>          POSITION CC
>          BUFFER 2
>          MINDISTANCE 200
>          COLOR 255 255 255
>        END
>      END
>    END
>
>