[Mapserver-users] Can't set the status of a layer to be on.

Vincent Schut schut at sarvision.com
Wed Jun 11 03:56:22 EDT 2003


Thats right.
For mapserver CGI:
STATUS DEFAULT means a layer is always drawn, no matter if you request it in 
your url or not. STATUS ON means you have to explicitly mention the layer in 
your url for the layer to be drawn, as Eric pointed out. STATUS OFF means you 
cannot show your layer by mentioning it in the url.

Cheers,
Vincent.

On Wednesday 11 June 2003 02:29, Eric Bridger wrote:
> I don't use cgi mapserver much, but I believe you need to have a query
> string telling mapserver to turn the layers ON, e.g.
> ?layers=counties+States+interstate+river or
> ?layer=counties&layer=States&layer=interstate&layer=river
>
> You need to construct your form so that layers or layer appears in the
> form's query string.
>
> Eric Bridger
>
> At 03:50 PM 06/10/2003 -0500, pond bear wrote:
> >When I set the status of a layer to be default, it shows. But when I set
> > the status of the layer to be ON, it disappears. Does anybody know the
> > reason? Here is my mapfile:
> >
> >
> >NAME UMAC
> >SIZE 658 300
> >#EXTENT -104.349976 45.824193 -96.408106 49.111218
> >EXTENT -1398289 -441075 779057 576298
> >#EXTENT -312640 104632 265792 452180
> >IMAGECOLOR 255 255 255
> >SHAPEPATH "../shape/"
> >
> >PROJECTION
> > "proj=laea"
> > "ellps=WGS84"
> > "lat_0=45"
> > "lon_0=-100"
> > "x_0=0"
> > "y_0=0"
> >END
> >
> >WEB
> > TEMPLATE "lowerframe.html"
> > IMAGEPATH "/usr/local/apache2/htdocs/tmp/"
> > IMAGEURL "/tmp/"
> >END
> >
> >
> >LAYER # counties
> > NAME "counties"
> > DATA counties
> > #MAXSCALE 8200000
> > STATUS default
> > TYPE POLYGON
> > CLASS
> >   OUTLINECOLOR 111 111 111
> > END
> >END
> >
> >
> >LAYER # States
> > NAME "States"
> > DATA states
> > STATUS default
> > TYPE POLYGON
> > CLASS
> >   OUTLINECOLOR 0 0 0
> > END
> >END
> >
> >LAYER # interstate
> > NAME "interstate"
> > DATA interstate
> > STATUS default
> > TYPE LINE
> > CLASS
> >   OUTLINECOLOR 0 128 0
> > END
> >END
> >
> >LAYER # river
> > NAME "river"
> > DATA rivers
> > STATUS default
> > TYPE LINE
> > CLASS
> >   OUTLINECOLOR 0 0 128
> > END
> >END
> >
> >LAYER # cities
> > NAME "cities"
> > DATA cities
> > STATUS on
> > TYPE point
> > CLASS
> >   OUTLINECOLOR 255 0 0
> > END
> >END
> >
> >END
> >
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-- 
______________________________________
Vincent Schut
Sarvision B.V.
Wageningen, The Netherlands
www.sarvision.com



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