Dynamic charting

[thomas bonfort]

are you using a paletted outputformat (i.e. gif) ?
if so there's a bug that was found

http://trac.osgeo.org/mapserver/changeset/7036/trunk/mapserver/mapchart.c

you basically have to change all occurences of gdImageColorAllocate to
gdImageColorResolve in mapchart.c

cheers,
tb


On Dec 12, 2007 6:17 PM, Murty Maganti <MMaganti at oriongis.com> wrote:
>
>
>
>
> Hello All
>
>
>
> I am having a strange issue using 'Dynamic charting' in map server. All
> segments of the chart are displayed in same color for some of the charts.
> Map file definition looks like below
>
>                                 CLASS
>
>                                                 Name "Col1"
>
>                                                 STYLE
>
>                                                                 SIZE
> [COLUMN1]
>
>                                                                 COLOR 255 0
> 0
>
>                                                                 OUTLINECOLOR
> 0 0 0
>
>                                                                 OFFSET 2 0
>
>                                                 END #end style
>
>                                 END # end class
>
>                                 CLASS
>
>                                                 Name "Col2"
>
>                                                 STYLE
>
>                                                                 SIZE
> [COLUMN2]
>
>                                                                 COLOR 0 0
> 255
>
>                                                                 OUTLINECOLOR
> 0 0 0
>
>                                                                 OFFSET 2 0
>
>                                                 END #end style
>
>                                 END # end class
>
>                                 CLASS
>
>                                                 Name "Col3"
>
>                                                 STYLE
>
>                                                                 SIZE
> [COLUMN3]
>
>                                                                 COLOR 0 255
> 0
>
>                                                                 OUTLINECOLOR
> 0 0 0
>
>                                                                 OFFSET 2 0
>
>                                                 END #end style
>
>                                 END # end class
>
>                                 CLASS
>
>                                                 Name "Col4"
>
>                                                 STYLE
>
>                                                                 SIZE
> [COLUMN4]
>
>                                                                 COLOR 255
> 255 0
>
>                                                                 OUTLINECOLOR
> 0 0 0
>
>                                                                 OFFSET 2 0
>
>                                                 END #end style
>
>                                 END # end class
>
>
>
> I have attached how the output image looks like. As can be seen from the
> image, all segments of some of the charts are shown in the same color
> (yellow in this example).
>
> Another issue is chart symbols are drawn overlapping each other making hard
> to read some of the charts. I can't find how to define not to draw partial
> charts.
>
>
>
> Regards
>
> Murty Maganti