legend icons and transparency alpha for pixmap

Sean Gillies sgillies at FRII.COM
Wed Mar 2 14:13:15 PST 2005


Ken,

It's fixed in CVS and will be working in the 4.4.2 release.

cheers,
Sean

On Mar 2, 2005, at 3:05 PM, Ken Lord wrote:

> I'd like to second the motion on this bug ..
>
> In my case im using Mapserver 4.4.1 CGI, and a vector symbol overtop a
> solid colour to symbolize the fill of a polygon.
>
> The 'TRANSPARENCY ALPHA' setting in the layer, and 'TRANSPARENT ON' in
> my
> RGB jpeg outputformat fixed the appearance on the map, the map is fine,
> but the icons generated in the legend are broken.  The vector symbol
> lacks
> the transparency that it has on the map, and blocks out the solid fill
> colour underneath.
>
> The vector symbol is a simple diagonal line:
>
> SYMBOL
>  NAME 'hatch1'
>  TYPE VECTOR
>  TRANSPARENT 0
>  POINTS
>   0 1
>   1 0
>  END
> END
>
> The typical class in the layer with the problem legend icons looks like
> this:
>
>   CLASS
>       EXPRESSION ....
>       NAME "...."
>       STYLE
>      COLOR 250 250 130
>       END
>       STYLE
>        SYMBOL 'hatch1'
>       COLOR 153 209 155
>        SIZE 3
>       END
>       STYLE
>       OUTLINECOLOR 0 0 0
>       SYMBOL "circle"
>       SIZE 1
>       END
>   END
>
> In this case, the legend icon would appear as white with the '153 209
> 155'
> diagonal lines, outlined in black. If correct it would appear as '250
> 250
> 130' with the '153 209 155' diagonal lines, outlined in black.
>
> Thanks
> Ken Lord
> Vancouver BC
>
>
--
Sean Gillies
sgillies at frii dot com
http://users.frii.com/sgillies



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