[Mapserver-users] Changing inline features with CGI parameters

[Wim Blanken PI]

Hello Jan,

Possible solutions......

-Did you specify the TYPE of the Layer?
-I use TRANSFORM OFF (and not False).

So......

TYPE  annotation
TRANSFORM OFF

If this is no solution, could you specify a more complete mapfile?

Regards,

Wim Blanken
Geon bv
The Netherlands

----- Original Message -----
From: "Jan Hartmann" <jhart at frw.uva.nl>
To: "'mapserver list'" <mapserver-users at lists.gis.umn.edu>
Sent: Monday, February 02, 2004 2:57 PM
Subject: [Mapserver-users] Changing inline features with CGI parameters


> Hi Steve and list,
>
> I'm trying to use a feature object for error messages. My mapfile looks
> like this:
>
> map
>
> layer
>    ..
> end
>
> layer
>    ..
> end
>
> layer
>    transform false
>    feature
>      text "No data for this map
>      points 10 10 end
>    end
>    class
>       color  255 0 0
>       ...
>     end
> end
>
> Layers ar selected with expressions from the URL, and if no data are
> found, every layer but the last is turned off and the error message is
> displayed. Works fine. However, I want to be able to change the
> feature's text and position from the URL. The CGI Reference shows how to
> do this by creating a new feature from the URL:
>
>
...&map_webuser_feature=new&map_webuser_feature_points=12345.6789+12345.6789
&map_webuser_feature_text=My+House!&..
>
> This only works when *no* feature is defined in the MapFile, else
> nothing is shown. When omitting "feature=new" MapServer segfaults.
>
> AFAICS existing features are not accessible from the URL. Is this by
> design, or can something be done about it? I am thinking of an
> application with lots of default error messages that can be toggled on
> and off individually in different positions. It would be easier to do
> this with predefined (and named) feature objects. I can live with the
> present situation though.
>
> Jan
>
>
>
>
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