Hi all
Is it possible to build an ImagePyramid with GeoTIFFs with overviews ?
Actually, we have one raster folder per zoom level, and they are served
as an ImagePyramid (index is in PostGIS).
But since our dataset is updated very often, the process of recreating
the rasters is long. Disk usage is also suboptimal.
We have tried building GeoTIFF with overviews so that one TIFF could
serve 2 to 3 levels (its a maximum because the displayed content changes
every 2-3 zoom level) and are very satisfied with the result, so we
would like to replace our "one folder per zoom level" structure to a
"one folder per N zoom levels" structure with geotiff with 1 or 2
overviews inside.
Is this possible ? If so, how should I configure the Imagepyramid
properties file ?
For the moment, we have something like :
Name=georasters_pyramid
Levels=0.15875,0.15875 0.3175,0.3175 0.635,0.635 1.27 1.27
LevelsDirs=georasters_17 georasters_16 georasters_15 georasters_14
LevelsNum=4
Envelope2D=-2000000,3000000 2000000,7000000
Thanks a lot !
Best regards
--
Arnaud
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