[mapserver-users] Raster Display Performance
Siki Zoltan
siki at agt.bme.hu
Sun Mar 7 14:01:52 PST 2010
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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