[mapguide-users] help with Getmapimage

[Birgir]

hi there, 
Im trying to create an image from a selection and I need some help with
getmapimage.
Ive attached an image that helps describe what I want to accomplish.

I want to be able to select an area with for example a polygon and create an
image that shows that selection. Currently I am doing this except the image
shows much more then just the selection.

I cant just change the setdisplaywidth because that just changes the size of
the image and I need the image to be ca. width=400 and height=500.

The following is how I create my image.

Dim Img As String = "http://localhost/mapguide2009/mapagent/mapagent.fcgi?"
& _
  "OPERATION=GETMAPIMAGE&VERSION=1.0.0" & _
 
"&FORMAT=PNG&SESSION=e3162e34-ffff-ffff-8000-005056c00001_da_7F0000010AF20AF10AF0&"
& _
  "MAPNAME=Kort_temaer" & _
  "&SETVIEWCENTERX=517334,984521116" & _
  "&SETVIEWCENTERY=6315357,04906777" & _
  "&SETVIEWSCALE=200000" & _
  "&SETDISPLAYWIDTH=400" & _
  "&SETDISPLAYHEIGHT=500"

http://osgeo-org.1803224.n2.nabble.com/file/n6048188/GETMAPIMAGE_test.png 

thanks.
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