[Geomoose-users] Image display covers up layers beyond its extent

[Jim Dahl]

The image is an ECW but JPG acts the same way.  My question is why does
transparency come into play when I do not want to see under the image, I
want to see beyond the extent of the image.  For example the image is 1
mile by 1 mile and it still covers up the whole county.  Is that because
the mapserver still thinks the image is county-wide?
 
jim

	-----Original Message-----
	From: Dan Little [mailto:danlittle at yahoo.com] 
	Sent: Friday, November 07, 2008 1:55 PM
	To: Jim Dahl; geomoose-users at lists.sourceforge.net
	Subject: Re: [Geomoose-users] Image display covers up layers
beyond its extent
	
	
	What type of layer is it?
	
	If it's raster it's a little harder to deal with because it's
probably being served as a JPEG and JPEG's don't support transparency.
	
	If it's a GIF then it's pretty easy to just set the image as
transparent, so if there isn't any data it shouldn't show up.
	

	
________________________________

	From: Jim Dahl <jim.dahl at mail.co.douglas.mn.us>
	To: geomoose-users at lists.sourceforge.net
	Sent: Friday, November 7, 2008 11:08:54 AM
	Subject: [Geomoose-users] Image display covers up layers beyond
its extent
	
	
	Hope to have better luck with this question..  Does anyone know
how I can keep an image that covers only a city from covering up another
image below it that covers the entire county?  The extent doesn't seem
to work for me in the mapfile.
	 
	thanks,
	 

	Jim Dahl, GISP
	GIS Coordinator
	Douglas County Public Works
	509 3rd Ave W
	PO Box 398
	Alexandria MN 56308

	V 320-762-2933
	   320-763-6001
	F 320-763-7955

	 


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