[mapserver-users] html legend not working

[Raffaele Morelli]

2015-08-03 15:55 GMT+02:00 Rahkonen Jukka (MML) <
jukka.rahkonen at maanmittauslaitos.fi>:

> Hi,
>
>
> I am not sure if HTML legends really work with WMS. The demo site that is
> mentioned in the html legend manual page must support html legends.
>
> http://demo.mapserver.org/cgi-bin/mapserv?map=%2Fosgeo%2Fmapserver%2Fitasca_legend%2Fmap%2Fitasca1.map&layers=all&zoomsize=2&zoomdir=1&map_size=600+400
>
> However, I could not find any way for reading the html legend through WMS.
> Format image/png does work for me
>
> http://demo.mapserver.org/cgi-bin/mapserv?map=%2Fosgeo%2Fmapserver%2Fitasca_legend%2Fmap%2Fitasca1.map&service=wms&version=1.1.1&request=getlegendgraphic&layer=ctyrdln3&format=image/png
>
> The site is advertising these formats for GetLegendGraphic, notice that
> html does not appear on the list even the service itself does support html
> legends if  they are read with native Mapserver methods:
>
> <GetLegendGraphic>
>       <Format>image/gif</Format>
>       <Format>image/png</Format>
>       <Format>image/png; mode=24bit</Format>
>       <Format>image/jpeg</Format>
>       <Format>image/vnd.wap.wbmp</Format>
>
> I also tested the effect of adding this WEB object metadata item into some
> of our Mapserver 7.0 RC1 services:
> "wms_getlegendgraphic_formatlist" "text/html"
>

​The WMS request is the same my webapp (geomoose) is actually doing and
which "fails" in returning html legend​.



>
> This change does not have any effect on the advertised GetLegendGraphic
> formats of our server. They are always
>
> <Format>image/png</Format>
> <Format>image/jpeg</Format>
> <Format>image/gif</Format>
> <Format>image/png; mode=8bit</Format>
>
> However, if I use "wms_getlegendgraphic_formatlist" "image/jpeg" then I
> can't read the legend as image/png even it does still show in
> GetCapabilities. So this setting works with the image formats as described
> in the documentation but there is a bug because the setting does not
> reflect to GetCapabilities.
>
> When it comes to top posting, I always top post but I also try to include
> some useful information into my mails for compensating the irritation. And
> I know that bottom posting is irritating at least as many people as top
> posting. I apologize also that my mail program does poor job with quoting
> previous mails.
>

​I am not irritated, it's just a matter of logic and top posting simply
doesn't work for conversation sequencing.
;-)​



>
> Regards,
>
> -Jukka Rahkonen-
>
>
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