[mapserver-users] Multiple LabelItems from dropdown?
Mark Abernathy
WMABERN at gwm.sc.edu
Fri Aug 3 09:12:17 PDT 2001
Hi folks,
I have an airport layer with different classes of airports within it determined by a SYMBOL attribute in the shape file. I would like to be able to choose the Attribute to display at run time by feeding the labelitem i.e FAAID or Airport Name from a dropdown list box on my html form.
In other words, I want the user to be able to diplay the Airport name if they want, or the FAA Id, etc... chosen from a dropdown. Can this be done?
I haven't seen a question on this or an example of this in the archives.
Does anyone have an example of doing this and what variable should I be passing to the map file and what is the syntax of that, please? Also, any suggestions on the coding of the html drop down? Thanks for any assistance. Below is a snip of my map file.
# Start of AIRPORT Layer
LAYER
NAME AIRPORT
TYPE Point
DATA AIRPORT
STATUS DEFAULT
LABELITEM FAAID
CLASSITEM "SYMBOL"
CLASS
EXPRESSION /1/
NAME "Public Airport"
SYMBOL 13
SIZE 11 # legend symbol size
COLOR 102 204 000 # legend symbol color - green
LABEL
COLOR 0 0 0
OUTLINECOLOR 255 255 153
POSITION AUTO
SIZE small
PARTIALS TRUE
BUFFER 2
END
END # CLASS
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