On 2/7/06, Kyle Mulka <[EMAIL PROTECTED]> wrote: > That seemed to work pretty well after I first converted my jpegs to > geotiffs using gdal_translate. It didn't work at all (took hours) trying > to go directly from jpeg to tiled tiff.
Kyle, I can see why you were originally having trouble. Large JPEGs are a particularly inefficient format for large raster data that you will want subsections of. I'm not sure why a direct translation from JPEG was so bad. Likely some sort of "cache thrashing" problem that would cause large amounts of data to be re-read for each tile being rewritten. You can set the GDAL_CACHEMAX value to allow GDAL to use a cache larger than it's default 10MB. > Now, I'm having a problem at the borders of both the original tiles and > the rended tiles from mapsever: > http://maps.kylemulka.com/spot/ > > You should notice that the initial map you see when the page first loads > looks fine. Then, zoom out and you will see two white lines. Any way to > fix that? I have no idea why that is. Some sort of subtle resampling error I suppose, or perhaps wrong bounds on your rasters. There isn't really anything I can do about it unless you can replicate it in a minimal situation you can submit in a bug report. Best regards, -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, [EMAIL PROTECTED] light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Programmer for Rent
