[FWTools] Can someone help test a potential bug for me?
blake at hailmail.net
Mon Oct 27 13:54:54 EDT 2008
Uploading a test case with a sample image and sample mapfile
prepackaged would be really useful to speed testing and keep consistent.
On Oct 27, 2008, at 9:40 AM, Roger André wrote:
> I'd like to ask for some help from a couple people running
> MapServer. I would like to know if others are able to replicate
> some strange behavior I have noticed lately, and what versions of
> MapServer they are using. Below are the steps needed, they don't
> take very long.
> Step 1. Create a large rectangular image of Size 14400 x 7200.
> Step 2. Assign georeferencing to the image:
> gdal_translate -a_ullr -180 90 180 -90 -a_srs "EPSG:4326"
> big_black.tif wgs84_big_black.tif
> Step 3. Load this image into a MapServer layer and set a contrasting
> IMAGECOLOR in the mapfile (red works well).
> Step 4. Make sure you have a spherical mercator projection defined
> in your epsg file.
> <900913> +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0
> +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs <>
> Step 5. Make a WMS request for a tile that replicates one that
> TileCache makes:
> Step 6. Look at your resulting tile. Is it full of data from top to
> bottom, or is there a band of IMAGECOLOR at the bottom?
> Step 7. Let me know your results.
> Thanks very much!
> FWTools mailing list
> FWTools at lists.maptools.org
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