You're right, we can't access STYLE directly from CGI parameters. After
some investigation I found a workaround:
Mapserver treats
CLASS
COLOR
OVERLAYOUTLINECOLOR
OVERLAYSYMBOL 'circle'
OVERLAYSIZE 3
END #class
...the like a synonymn for...
CLASS
STYLE
COLOR
END #style
STYLE
OUTLINECOLOR
SYMBOL 'circle
SIZE 3
END #style
END #class
The OVERLAY elements are used to access the second style. I can set
outline width and outline color via CGI parameters with:
&map_mylayer_class_overlaysize=3
&map_mylayer_class_overlayoutlinecolor=3
Brock
Paul Ramsey wrote:
Then my money is on: they did not update the CGI interface when they
added the STYLE concept to the object model. Blarg!
On 31-Mar-06, at 3:22 PM, Brock Anderson wrote:
Thanks Paul.
Near the bottom of this page:
http://mapserver.gis.umn.edu/docs/reference/cgi/controls
it says if there is only one class, then omit the index. I actually
have the CGI parameters working to set outlinecolor directly within
the class. I use a query string parameter like this:
&map_mylayer_class_outlinecolor=...
I just can't seem to get into the STYLE elemen to set WIDTH.
Brock
Paul Ramsey wrote:
I think you have to enumerate all the unnameable elements for
which there are potentially more than one entry. (Not sure if we
count from 0 or 1)
&map_mylayer_class_0_style_0_width=3
P
On 31-Mar-06, at 2:57 PM, Brock Anderson wrote:
Hi All,
I am trying to use CGI parameters to dynamically set the WIDTH
and OUTLINECOLOR within a STYLE tag. I've tried various formats
for the CGI parameters, including something like:
&map_mylayer_class_style_1_width=3
... but the parameters are being ignored. Is it possible to use
CGI parameters to set values within a STYLE element? How?
Brock
I'm using Mapserver 4.6.2. A piece of my map file:
LAYER
NAME "mylayer"
CONNECTIONTYPE postgis
CONNECTION "..."
DATA "..."
CLASS
EXPRESSION ([pop] > 5000)
NAME "above 5000"
STYLE
COLOR 0 197 255
END #end style
STYLE
OUTLINECOLOR 0 197 255
WIDTH 5
END #end style
END #end class
TYPE polygon
STATUS DEFAULT
PROJECTION
"init=epsg:4269"
END #projection
END #LAYER
