On Wed, 27 Feb 2019, Ooms Bart wrote:
Hello all,
I have a grid on a 1m resolution with a tilesize of 8000x8000.
To speed up the rendering process I have created overviews with gdaladdo, the
result you can see in the gdalinfo below.
The default blocksize is 512x512.
My questing handles the combination of blocksize and overviews.
The blocksize is 512x512 and the lowest resolution of the overview
generates a block of 63x63. Are the lower resolution overviews usefull?
I suppose it is only usefull to create overviews until 500x500
if I have a blocksize of 512x512. Am I right?
It depends how the set will be viewed.
In any particular view of the data, the most useful overview has pixels
which are about the same size as the display pixels.
--
Andrew C. Aitchison Cambridge, UK
[email protected]
_______________________________________________
gdal-dev mailing list
[email protected]
https://lists.osgeo.org/mailman/listinfo/gdal-dev
