[mapguide-users] Base Layers - Raster

[Andy Morsell]

It looks like there are inconsistent issues with raster images in base
layers.  I will try to test later today on my client's machine where we had
the first problem to see if the issue still exists with 1.2.  I just tried
on another 1.2 machine with one single larger (250 MB) SID and it seemed to
work okay creating the tile images.  One thing to watch out for: if you have
your map image request set to JPG in your ajaxmappane.templ for performance
reasons, than it will be opaque on top of your base layers.  You will have
to switch it back to PNG in order for the overlay transparency to work and
to see your base layers.
 

Andy 


  _____  

From: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Berdel, Brian
Sent: Thursday, November 08, 2007 9:52 AM
To: MapGuide Users Mail List
Subject: RE: [mapguide-users] Base Layers - Raster



Ok, Thanks. It sounds like that thread and you are saying that base layers
do not work with raster images?

 

but I would think it does work if Kori spent the time to create the
FMTilingEngine.


Can you let me know where I can find Jason's tile indexing?

 

Thanks for the help, I have spent way too much time on this.

 

Brian Berdel

McMahon Associates, Inc.

p: 215.283.9444

www.mcmtrans.com

  _____  

From: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Andy Morsell
Sent: Thursday, November 08, 2007 12:39 PM
To: 'MapGuide Users Mail List'
Subject: RE: [mapguide-users] Base Layers - Raster

 

I'm not sure that this problem was ever fixed.  I had the same issue with
using ECW images as part of a base layer and eventually gave up.  With other
GDAL improvements (including Jason's tile indexing), I was able to get
reasonable performance out of standard raster layers, so I have not
revisited this issue recently.  

 

See this Trac ticket for more information:

 

http://trac.osgeo.org/mapguide/ticket/187

 

Andy Morsell, P.E. 
Spatial Integrators, Inc. 
http://www.SpatialGIS.com 

  _____  

From: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Berdel, Brian
Sent: Thursday, November 08, 2007 8:26 AM
To: MapGuide Users Mail List
Subject: RE: [mapguide-users] Base Layers - Raster

As a follow up, it seems as though it is not creating the tiles correctly in
Mapguide.When I look in the cache most of the files are 2kb and blank
images. 

 

Brian Berdel

McMahon Associates, Inc.

p: 215.283.9444

www.mcmtrans.com

  _____  

From: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Berdel, Brian
Sent: Thursday, November 08, 2007 10:21 AM
To: MapGuide Users Mail List
Subject: [mapguide-users] Base Layers - Raster

 

I am having some serious issues using MrSID files as Base Layers.The images
display fine as regular layers but the client ALWAYS locks up when I have
them as base layers and I definitely want to use this feature for
performance reasons.   Anyone have anything I can try?

 

This is the case whether I pre-populate the cache or not. 

 

Brian Berdel

Systems Administrator/Programmer Analyst

 

McMahon Associates, Inc.

425 Commerce Drive, Suite 200

Fort Washington, Pennsylvania 19034

p: 215.283.9444

f:  215.283.9858

brian.berdel at mcmtrans.com

 

 <http://www.mcmtrans.com> 

   New England  |  Mid-Atlantic  |  Florida

 

 

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