This post is a repository of useful tutorials, workshops, demonstrations, and reference for spatial analytics and modeling in the Postgres, PostGIS, and QGIS. Please add links to this post as you discover useful sites (include a brief description of the site).
- w3schools – a very useful site on the fundamentals of (non-spatial) SQL queries, including tutorials on joins and SQL functions such as AVG()
- boundlessgeo – an excellent primer on many of the PostGIS spatial functions, great place to get your feet wet with PostGIS spatial analytics/modeling
- spatialthoughts – this site provides tutorials in a wide range of techniques in QGIS
- linfinity – this site provides a number of tutorials clearly illustrating spatial analytic approaches using QGIS
- “Geospatial Analysis – 4th Edition” by de Smith, Goodchild, Longley – this textbook provides the conceptual and geometric principles of spatial analytics and modeling – an excellent resource.
This post outlines a few of the ways I’ve found to export QGIS maps as vector files. So far this has been for purely cosmetic reasons but going forward this could be a essential step when moving into Rhino and Unity.
A worldwide map containing downloadable geolocated, data-rich shapefiles is now available on the OpenStreetMap site. The information is exported as an .osm file, a type of XML file that can be read and dynamically imported by CityEngine. While the information contained in the geo-database consists of base layers from mapquest (street centerlines, street widths, building footprints and heights, religious centers, hospitals, bike paths, public transportation lines, parks, etc.), it is a useful resource for generating data-rich base models from actual conditions. A tutorial describing how to import this file type (among other file types) and generate city-wide 3D geometry in CityEngine can be found here:
Along with incredible examples of visualizing data this website has over 130 data sets that may be a more abstract data base that is capable of getting us to understand the incredible interconnect intricacies of the city. Can world wide carbon dioxide information data sheets give us a better idea of chicago? If nothing else it has some incredible data sheets and is food for thought.