[mapguide-users] GDAL - MapImage with stripes

[Zac Spitzer]

I haven't seen such behaviour myself, but I have seen with 2.4 occasional
very thin white
borders on raster tiles

What source image file format are you using?

Are you able to provide a small sample raster image which reproduces this
problem?




On Thu, Nov 15, 2012 at 12:04 AM, Gunter Becker <gunter.becker at csogis.de>wrote:

> Hi,
>
> I'm trying to produce large high quality plots with the
> GetMapImage-methode.
> When using the GDAL Raster Provider I get stripes on my image. Source files
> are either 8 bit or 24 bit. It doesn't matter if it is a raster
> FeatureSource of type 'single' or 'composite'. I've tested with different
> raster output formats (PNG/PNG8/JPG) but get always the same result like in
> this image:
>
> <http://osgeo-org.1560.n6.nabble.com/file/n5016254/stripes.jpg>
>
> It depends on scale and location where these stripes occur in the image.
>
> I've set up serverconfig.ini to this settings (Rendering Service):
>
>
>
> I think the other settings under 'Rendering Servcie' just takes affect when
> using raster reprojection.
> Smaller images looks great but when increasing width and height or dpi then
> this issue also increases.
>
> Are there any other settings I can adjust? Seems to me that it belongs to a
> memory problem. Does the GDAL Provider mybe has a memory limit?
>
> I am using MGOS 2.4 (FDO 3.7)
>
> Thanks, Gunter
>
>
>
> --
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> Sent from the MapGuide Users mailing list archive at Nabble.com.
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-- 
Zac Spitzer
Solution Architect / Director
Ennoble Consultancy Australia
+61 405 847 168
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