Changes between Version 29 and Version 30 of WKTRaster/SpecificationWorking01

Timestamp:

05/29/09 08:12:03 (16 years ago)

Author:

mloskot

Comment:

—

WKTRaster/SpecificationWorking01

@@ -278 +278 @@
 If the RASTER_COLUMNS "regular_blocking" value is true then "all blocks are equal sized, abutted and non-overlapping, started at top left origin", plus additional constraints. This regular blocking capability raises the possibility of having very large contiguous raster coverages (made up of many individual WKTRaster-s) which, in turn, raises potential performance problems. Other raster formats counter this by having overviews; a concept that is already [http://www.gdal.org/gdaladdo.html supported] by [http://www.gdal.org/ GDAL].
 
-The overviews support was discussed on Martin Daly's initiative and is available in the [http://postgis.refractions.net/mailman/listinfo/postgis-devel postgis-devel] archives under thread [http://postgis.refractions.net/pipermail/postgis-devel/2009-May/005619.html WKTRaster & overviews].
+The overviews support was discussed on [http://blog.lostinspatial.com/ Martin Daly]'s (Cadcorp) initiative and is available in the [http://postgis.refractions.net/mailman/listinfo/postgis-devel postgis-devel] archives under thread [http://postgis.refractions.net/pipermail/postgis-devel/2009-May/005619.html WKTRaster & overviews].
 
 The following metadata table provides external applications and possibly internal tools the ability to discover tables that contain overview raster data, and to learn various information about those datasets.