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pgRouting: Loading OpenStreetMap with Osm2Po and route querying 11 Apr 2013 | 05:00 am
For this exercise we are going to demonstrate how to use OSM2PO and an OSM pbf to create a routing network. Much of this is borrowed from Anita Graser's tutorial O
Part 1: Getting Started With PostGIS: An almost Idiot's Guide (PostGIS 2.0) 12 May 2012 | 08:00 am
What Is PostGIS? PostGIS is an open source, freely available, and fairly OGC compliant spatial database extender for the PostgreSQL Database Management System. In a nutshell it adds spatial functions...
Part 3: Using your own custom built OSM tiles in OpenLayers 19 Jun 2011 | 08:00 am
In this third Part of our OpenStreetMap series we will demonstrate how to use the osm tiles we built in Part 2: Building Tiles with PostGIS OpenStreetMap data. <
Part 2: Building Tiles with PostGIS OpenStreetMap data and Mapnik: Your Own OpenStreetMap 19 May 2011 | 08:00 am
This is a continuation of our Loading OpenStreetMap data in PostGIS. In this tutorial we will build a tile cache of the Massachusetts data we loaded in Part 1 and then
Part 1: Loading OpenStreetMap data into PostGIS: An Almost Idiot's Guide 15 May 2011 | 08:00 am
For this exercise, we will download Massachusetts OSM data and then load it into our PostGIS spatially enabled PostgreSQL database. The OSM data contains roads, points of interests, building footprint...
PostGIS Concave Hull 4 Jun 2010 | 08:00 am
This is a work in progress, and demonstrates the ST_ConcaveHull function that will be available in PostGIS 2.0. The basic approach is that it first creates a convexhull of the geometry and then uses t...
Part 1: Getting Started With PostGIS: An almost Idiot's Guide (PostGIS 1.5) 23 Feb 2010 | 10:00 am
What Is PostGIS? PostGIS is an open source, freely available, and fairly OGC compliant spatial database extender for the PostgreSQL Database Management System. In a nutshell it adds spatial functions...
OSCON 2009: Tips and Tricks for Writing PostGIS Spatial Queries 30 Jul 2009 | 08:00 am
We gave a presentation on writing PostGIS spatial queries at OSCon 2009 last week. Slides will be available on the site, but you can download them <a href="/down
PGCon2009: PostGIS 1.4, PostgreSQL 8.4 Spatial Analysis Queries, Building Geometries, Open Jump 23 May 2009 | 08:00 am
We gave a lecture at PGCon 2009. Below are the links and the generated data set. Some of the examples use features in PostgreSQL 8.4 and PostGIS 1.4, but most should be applicable to earlier versions....
Part 1: Getting Started with SpatiaLite: An almost Idiot's Guide 28 Mar 2009 | 08:00 am
What is SpatiaLite? SpatiaLite is an SQLite database engine with Spatial functions added. You can think of it as a spatial extender for SQLite database engine which is similar in concept to what Post...
