GeoDjango: Putting Django on the Map
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This document discusses GeoDjango, which allows spatial relationships to be modeled in Django applications. It introduces Tobler's First Law of Geography and explains how to install and configure GeoDjango by adding PostGIS and required libraries. It demonstrates defining geographic models and creating geographically related instances. It also covers using spatial relationships for queries, outputting maps to the web, and working with geographic admin interfaces and APIs.
GeoDjango: Putting Django on the Map
- 1. GeoDjango: Putting Django on the Map Sunday, 9 February 2014
- 2. Tobler’s First Law of Geography: "Everything is related to everything else, but near things are more related than distant things." Tobler, W. (1970) "A computer movie simulating urban growth in the Detroit region". Economic Geography, 46(2): 234-240. Sunday, 9 February 2014
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- 4. Here be dragons Sunday, 9 February 2014
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- 7. • Install PostGIS (postgis.net/install/) • • • You can use other dbs, but... Install libraries (docs.djangoproject.com/...) Add django.contrib.gis to INSTALLED_APPS and you’re hot to trot Sunday, 9 February 2014
- 8. Defining GeoDjango Models Sunday, 9 February 2014
- 9. Creating Geographically Related Instances Sunday, 9 February 2014
- 10. One advantage of modelling geographic relationships this way: Sunday, 9 February 2014
- 11. What’s in the database? Sunday, 9 February 2014
- 12. GEOS Instances Sunday, 9 February 2014
- 13. Using Spatial Relationships Possible places to check in Nearest restaurant Within user-defined area Sunday, 9 February 2014
- 14. The closest bar I’ve been to before The most popular bar in London Sunday, 9 February 2014
- 15. Lookup Type bbcontains bboverlaps contained contains contains_properly coveredby covers crosses disjoint distance_gt distance_gte distance_lt distance_lte dwithin equals exact intersects overlaps relate same_as touches within left right overlaps_left overlaps_right overlaps_above overlaps_below strictly_above strictly_below Sunday, 9 February 2014 PostGIS X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Oracle X SpatiaLite MySQL X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
- 16. Time to output for the web Sunday, 9 February 2014
- 17. The Admin Interface Sunday, 9 February 2014
- 18. https://www.sharegeo.ac.uk/ Sunday, 9 February 2014
- 19. + Sunday, 9 February 2014 =
- 20. + Sunday, 9 February 2014 =
- 22. Thank you! London Django Coding Session - Biweekly Hosted by: Conversocial - always hiring Django people @godawful [email protected] Sunday, 9 February 2014