Dear Zsolt,
You sould make pyramid and tiles.
Divide the original images into smaller pieces. You can use
gdal_translate. (I usually use approx 10 MB or smaller image size)
Use gdaladdo to create pyramid.
Regards
Zoltan
On Sun, 7 Mar 2010, Medve Zsolt wrote:
Hy all!
I would like to ask for a help. I have a dataset. 30 pieces of Tif file,
aproximately 240 MB each.
I make a layer in the map file:
LAYER
NAME "something"
STATUS ON
TILEINDEX "sh.shp"
TILEITEM "Location"
TYPE RASTER
METADATA
"DESCRIPTION" "Something too"
"ows_title" "dem"
END
END
I use this in the pmapper framework.(But its doing the same thing in ka-map
either) But its apeaars very slowly and when i panning its reload all and its
very slowly too.. i would like to tune up the performance somwhow.
I am looking the gdaladdo program, because mapserver documentation suggest
it. But when i tried the given examples (http://www.gdal.org/gdaladdo.html)
it wont work, or i dont know what to see, Its just do nothing i think..
Can anybody help me on this? Or any method to make a better performance?
please!
thanks,
Zsolt
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