# standard_overviews.bf
# Fast overview settings for normal use.
# GBB 03/2013   <grb@skogoglandskap.no>


# Overview levels to be built. 

	GDAL_OVERVIEWS="2 4 8 16 32 64 128 256"         # recommended overview levels for Qgis and all-norway maps.
					        	# overview levels 2 and 4 can be very slow to compute.
				  	  		# Use spaces, not commas, to separate the levels.

# disabled for now

        PGR_OVERVIEWS=1			 	 	# 8 = equivalent of "1 2 4 8 16 32 64 128 256" in gdaladdo
							# unfortunately, raster2pgsql fails randomly if you ask 
							# for a zoom level that will produce small tiles 
							# nb. reported bugs in raster2pgsql overviews here: http://trac.osgeo.org/postgis/ticket/2359
							# TODO: makes me wonder if overview levels should be a characteristic of maps 

# Overview quality: JPEG is sufficient for almost all overview (preview) purposes.
# Lossless is also available. 
# Specified in a single string because these options are rarely modified.

	OVERVIEW_SETTINGS="--config COMPRESS_OVERVIEW JPEG"
