Thanks Steve,
Just tried creating a symbol image in my mapfile and referencing that
through the URL with no luck.
I've created a ticket for this: http://trac.osgeo.org/mapserver/ticket/2700
Cheers,
Ben
Steve Lime wrote:
I wonder if this is related to using an image. If you define another named
symbol in your
mapfile, e.g.:
SYMBOL
TYPE PIXMAP
NAME 'blue_star'
IMAGE ./blue_star.gif
END
and then try to reference it:
...&map.layer[0].CLASS[0].STYLE[0]=SYMBOL+'blue_star'&...
Does that work? Might be a reasonable workaround.
MapServer resolves symbol names at the end of mapfile parsing and that's probably not
happening in this case. The reason we wait until the end is because symbols and symbolsets
can be anywhere in the file. This is probably a bug if you'd please file a ticket...
Steve
On 7/11/2008 at 6:03 PM, in message <[EMAIL PROTECTED]>, Ben
Brehmer <[EMAIL PROTECTED]> wrote:
Dear All,
Just wondering if there are any known problems when trying to modify a
symbol via the URL in Mapserver 5.0.3.
I am trying to do on-the-fly symbol changes with the CGI variables as
follows:
...&map.layer[0].CLASS[0].STYLE[0]=SYMBOL+'./blue_star.gif'&...
The above produces no errors and a blank image. Seems to me as though
the symbol is simply ignored in the URL because when I assign a color
(map.layer[0].class[0].style[0]=COLOR+151+151+151) I get a whole whack
of points back. Predefining the SYMBOL in the mapfile (SYMBOL
"./blue_star.gif") also works perfectly fine.
Not sure if I'm doing something wrong, but I've tried pretty much every
combination including using using non-image symbols, playing around with
the mapfile, and pulling out my hair. Note that I am also using the DATA
CGI var to supply dynamic data content in the same URL (not sure if this
would make a difference).
Any ideas/suggestions would be greatly appreciated.
Thanks,
Ben Brehmer
The mapfile is pretty straight forward:
.
..
...
DATAPATTERN ".*"
LAYER
NAME "pointlayer"
DATA ""
CONNECTIONTYPE postgis
CONNECTION "host=localhost user=postgres port=5432 dbname=name
password=pass"
CLASSITEM "point_id"
CLASS
NAME ""
STYLE
END
END
...
..
.
Mapserver is compiled with the following options:
MapServer version 5.0.3 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE
SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_CLIENT
SUPPORTS=FASTCGI INPUT=EPPL7 INPUT=POSTGIS INPUT=OGR INPUT=GDAL
INPUT=SHAPEFILE
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