[mapguide-users] RE: Tiffs and MGOS 2.01

Mark Pendergraft markp at Meadgilman.com
Thu Oct 2 01:06:58 EDT 2008


I have upgraded to 2.02 and now I can see the tiff in my map.  however,
I can only see the tiff in my map when the coordinate system is the same
as the coordinate system in the tiff (regardless of overrides).  Any
ideas?

 

From: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Mark
Pendergraft
Sent: Wednesday, October 01, 2008 4:22 PM
To: MapGuide Users Mail List
Subject: RE: [mapguide-users] RE: Tiffs and MGOS 2.01

 

I did have a coordinate system override specified at first.  It was the
same coordinate system as my map (WAHP-NF), but when I looked at it in
the layer preview, the scale was 1:4.65.  Seeing as the TIFF covers the
entire Puget Sound in Washington State, I knew something was up.  So I
didn't specify an override, and I create a new map with the same
coordinate system as the tiff.  When I look at the tiff in the layer
preview sans override, the scale is 1:1698729.00 (which is more like
it).

However in my map with the same coordinate system, I see nothing.

 

From: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Dave Wilson
Sent: Wednesday, October 01, 2008 4:12 PM
To: MapGuide Users Mail List
Subject: [mapguide-users] RE: Tiffs and MGOS 2.01

 

Did you specify a coordinate system override on your Data connection so
that when you add the layer to the map it knows what CS it's in?

 

Dave

 

From: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Mark
Pendergraft
Sent: Wednesday, October 01, 2008 4:56 PM
To: mapguide-users at lists.osgeo.org
Subject: [mapguide-users] Tiffs and MGOS 2.01

 

I'm having trouble with TIFF's in MGOS 2.01.  I'm using Mapguide Studio
2009 and the GDAL provider.  I can create a data resource from a
directory containing 4 tiffs (downloaded from USGS National Map - NED
Imagery).  And I'm able to create a layer, and view the tiff data in the
layer preview.  Everything is fine until I add it into my map.  It
doesn't show up at all.  I have even made another map with just the tiff
layer, and zoomed way out.  Nothing.  I have tried different coordinate
systems, and I'm currently using the LL83 (which is the same as the tiff
coordinate system) and I've even plugged in the lat/longs from the
tiff's lower/upper corners into the map.  Am I missing something here?

 

Thanks.

-Mark Pendergraft

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