I'm fiddling around trying to create a thumbnail of a fairly large (originally 27MB) raster, chunked into 64x64 blocks. I've got the following and it works, quite well, but I'm wondering if there is a ...
I'm using PostGIS2.0 to do some raster/polygon intersections. I'm having difficulty understanding which operation I should use, and what the quickest way of performing this is. My problem is as ...
I have a PostGIS 1.5 database and want to update to 2.0. I read that because this is major release I have to follow the 'Hard update' procedure. However the spatial data I have is only test data so I ...
I have an OpenStreetMap PostGIS database and would like to select specific data (for example all shops) of each tile (on a defined zoomlevel) on the planet. Is this possible to achieve and if yes, ...
i have a table of points with each point acquired on a specified date, by a specified source, and having a measured value. i want to consider points as duplicates if they have the same date and if ...
I am using Postgresql 9.0 and PostGIS 2.0. I am using Django 1.3 and GeoDjango.I have model with id,latitude,longitude and placename. All the places are in USA. My requirement is following - User ...
after making a clean install with the latest stable release of postgis (2.0) i can't perform any transformations: SELECT ST_Transform(ST_SetSRID('BOX3D(2644033.2454124987 ...
I am struggling to get the latest trunk of PostGIS to install on a fresh Mac running Lion. I did install PostGIS 1.5.3-2 for Postgres 9.1 from [KyngChaos Mac OSX Installers]. This setup worked ...