Let's Talk Geo: Adding the "Where" to Your Django Project

Transcript

1. LET’S TALK GEO: ADDING THE “WHERE” TO YOUR DJANGO PROJECT CORRYN SMITH @HOLACORRYN DJANGOCON EUROPE SPRING 2016 @HolaCorryn
2. HI! @HolaCorryn
3. MY NAME IS @HolaCorryn
4. CORRYN @HolaCorryn
5. CORRYN (KORE-REN) @HolaCorryn
6. CORRYN SMITH @HolaCorryn
7. UNICORN @HolaCorryn
8. @HolaCorryn
9. @HolaCorryn
10. BORN TO CODE ?!?!? @HolaCorryn
11. ABOUT ME •Graduate Student at Northern Arizona University studying Geography, Planning, and Recreation @HolaCorryn
13. ABOUT ME •Graduate Student at NAU studying Geography, Planning, and Recreation •I work with GIS @HolaCorryn
14. ABOUT ME •Graduate Student at NAU studying Geography, Planning, and Recreation •I work with GIS •I analyze data on maps @HolaCorryn
15. WHAT IS GIS •Geographic Information Systems •Create, Store, Manipulate, Analyze and Display Spatial Data •Data that represents a place on Earth •Latitude, Longitude, UTM, State Plane, etc. @HolaCorryn
16. GIS/GEOSPATIAL TECHNOLOGIES •All Around You! •Google Maps •Hotel to Conference •Public Transit Map •Package Tracking Maps @HolaCorryn
17. GIS/GEOSPATIAL TECHNOLOGIES ANSWERS “WHERE?” @HolaCorryn
18. ANALYZING AND GIS •Where to put the next business •Starbucks •Where to build a park •Mapping trails •Land Use Change over Time
20. GIS DISPLAYS DATA • Visual way to display your data • Map = Picture • A Picture is Worth 1000 words!
21. GIS DISPLAYS DATA • Visual way to display your data • Map = Picture • A Picture is Worth 1000 words!
22. MAPS ARE IMPORTANT •Displays a route to a destination •Informs about elevation and physical features (lakes, mountains, etc.) •Reveals points of interest •Shows Spatial Patterns •Find Problems and make Solutions @HolaCorryn
23. “WHERE?” IS IMPORTANT @HolaCorryn
24. “WHERE?” •Shows Accessibility •Shows Potential Problems @HolaCorryn
25. PICTURE TIME @HolaCorryn
26. IS MAP READING DEAD? GEOGRAPHY IS NOT TAUGHT ANYMORE? @HolaCorryn
27. @HolaCorryn
28. @HolaCorryn
29. HOW PROGRAMMERS CAN USE MAPS •Display Service Areas •Babysitter/Lawn Mower can only a service an area 20 miles from home •Points of Interest on a Blog •DjangoGirl adds map on her blog of her favorite restaurants •Run a Fan-Fiction Blog of NekoAtsume @HolaCorryn
31. HOW PROGRAMMERS CAN USE MAPS •Display Service Areas •Babysitter/Lawn Mower can only a service an area 20 miles from home •Points of Interest on a Blog •DjangoGirl adds map on her blog of her favorite restaurants •Run a Fan-Fiction Blog of NekoAtsume •Thematic Map or Density Map •Display the attendees who came to DjangoCon Europe
33. I’M CONVINCED
34. NOW HOW DOES GIS/MAPS TIE IN WITH PYTHON & DJANGO?!?!
35. LOVE STORY WITH GIS & PYTHON
36. GIS & PYTHON •ArcMap – ESRI Suite •ArcMap installs Python •Automate tasks with ArcPy @HolaCorryn
37. GIS & PYTHON •ArcMap – ESRI Suite •ArcMap installs Python •Automate tasks with ArcPy @HolaCorryn
38. GIS & DJANGO = GEODJANGO •Web framework to create geographic web applications •How to Add Maps to your Django Project!  •GeoDjango Tutorial is great! CCCCCC •https://docs.djangoproject.com/en/dev/ref/c ontrib/gis/tutorial/ @HolaCorryn
39. GEODJANGO Overwhelmed by terms Shapefile, SRID, WSG 84, GPX, Map geometry @HolaCorryn
40. BEGINNING YOUR GEODJANGO PROJECT CHECKLIST Spatial Database Geographic Data Geographic Model Importing your Geographic Data (Optional) Spatial Queries Geographic Friendly Admin Geo-Friendly API Mapbox Leaflet @HolaCorryn
41. SPATIAL DATABASE •Database needs to be able to hold geometry •Geometry= Spatial Data! •Postgresql •CREATE EXTENSION postgis; @HolaCorryn
42. BEGINNING YOUR GEODJANGO PROJECT CHECKLIST Spatial Database Geographic Data Geographic Model Importing your Geographic Data (Optional) Spatial Queries Geographic Friendly Admin Geo-Friendly API Mapbox Leaflet @HolaCorryn
43. GEOGRAPHIC DATA • Shapefile- geospatial vector file • Points • Lines • Polygons • Often zipped/compressed • .shx (shape index format) • .shp (shape format/geometry) • .dbf (attribute data) • .prj (projection) • .sbn (spatial index for queries) @HolaCorryn
44. WHERE CAN I FIND SHAPEFILES?!
45. GEOGRAPHIC DATA • Download Shapefiles • National Historical GIS (https://www.nhgis.org/) • Boundary Files • Historical Data • Diva GIS (http://www.diva-gis.org/gdata) • By Country & Subject • National Land Cover Database (http://www.mrlc.gov/) • Land Use Change Over Time • TIGER (https://www.census.gov/geo/maps-data/data/tiger.html) • Roads • Your Local or State Government @HolaCorryn
46. GEOGRAPHIC DATA •Make Your Own •GPS •Collect Data with a Unit • Import GPX •GIS Software @HolaCorryn
47. GIS SOFTWARE-- ARCMAP Pros: Very Common in GIS World Cons: Crashes a lot Expensive @HolaCorryn
48. GIS SOFTWARE -- QGIS Pros: Free! Cons: Not very popular @HolaCorryn
49. GEOGRAPHIC DATA Making a Shapefile in QGIS 1. Download QGIS (It’s Free!) 2. Open QGIS 3. Select “Plugins” from the toolbar 4. Select “Manage and Install Plugins” 5. Search for “QuickMapServices” and Install! @HolaCorryn
50. CREATING A SHAPEFILE IN QGIS •Once you have it installed •Select a Basemap •(OSM = Open Street Map) @HolaCorryn
51. CREATING A SHAPEFILE IN QGIS
52. CREATING A SHAPEFILE IN QGIS •Zoom to desired location •Select “Layer” •Select “New Shapefile Layer” •Create Shapefile with name and save @HolaCorryn
53. CREATING A SHAPEFILE IN QGIS •Click on Shapefile in the Table of Content •Select the Yellow Pencil •Select Point/Line/Polygon •Click on Map
54. CREATING A SHAPEFILE IN QGIS •Make sure you save! •Close of out QGIS •Select “Layer” •Select “Add Layer” •Select “Add Vector Layer” and select you new shapefile! @HolaCorryn
55. GEOGRAPHIC DATA •Create a data folder under your application •Add all of your geographic data and all of its extensions! @HolaCorryn
56. BEGINNING YOUR GEODJANGO PROJECT CHECKLIST Spatial Database Geographic Data Geographic Model Importing your Geographic Data (Optional) Spatial Queries Geographic Friendly Admin Geo-Friendly API Mapbox Leaflet @HolaCorryn
57. GEOGRAPHIC MODEL • Your model should duplicate the fields in your shapefile • (GeoDjango Tutorial covers this more in depth) @HolaCorryn
58. IF YOU’RE FOLLOWING THE GEODJANGO TUTORIAL RUN MIGRATE HERE 
59. BEGINNING YOUR GEODJANGO PROJECT CHECKLIST Spatial Database Geographic Data Geographic Model Importing your Geographic Data (Optional) Spatial Queries Geographic Friendly Admin Geo-Friendly API Mapbox Leaflet @HolaCorryn
60. IMPORTING GEOGRAPHIC DATA • Load.py (GeoDjango Tutorial covers this well!) • Looks like this: @HolaCorryn
61. IMPORTING GEOGRAPHIC DATA • Open up Python Shell >>>from APPNAME import load >>>load.run() @HolaCorryn
62. YOU JUST LOADED SPATIAL DATA INTO YOUR PROJECT NOW, LET’S SEE IT!
63. BEGINNING YOUR GEODJANGO PROJECT CHECKLIST Spatial Database Geographic Data Geographic Model Importing your Geographic Data (Optional) Spatial Queries – See GeoDjango Tutorial Geographic Friendly Admin Geo-Friendly API Mapbox Leaflet @HolaCorryn
64. GEOGRAPHIC FRIENDLY ADMIN from django.contrib.gis import admin from APPNAME import models admin.site.register(models.Georgia, admin.GeoModelAdmin) GeoDjango tutorial is also great for this step @HolaCorryn
65. GEOGRAPHIC FRIENDLY ADMIN @HolaCorryn
66. ADDING DATA THROUGH THE ADMIN
67. ADDING DATA THROUGH THE ADMIN •Do this for emergencies •If you destroy your database, you’ll lose the data •Always want a backup of your data @HolaCorryn
68. BEGINNING YOUR GEODJANGO PROJECT CHECKLIST Spatial Database Geographic Data Geographic Model Importing your Geographic Data (Optional) Spatial Queries – See GeoDjango Tutorial Geographic Friendly Admin Geo-Friendly API Mapbox Leaflet @HolaCorryn
69. GEO-FRIENDLY API • Add a serializer (translates the data and formats it to be stored and reconstructed later) from apps.berlin import models from rest_framework import serializers from rest_framework_gis import serializers as geoserializers class GeorgiaSerializer(geoserializers.GeoFeatureModelSerializer): class Meta: model = models.Georgia geo_field = 'mpoly' fields = ('name','num_studen') https://docs.djangoproject.com/en/1.9/ref/contrib/gis/serializers/ @HolaCorryn
70. GEO-FRIENDLY API json_views.py from apps.APPNAME import models, serializers from rest_framework import generics import django_filters http://django-generic-json-views.readthedocs.org/en/latest/
71. GEO-FRIENDLY API • Don’t forget your API URLS @HolaCorryn
72. GEO-FRIENDLY API
73. BEGINNING YOUR GEODJANGO PROJECT CHECKLIST Spatial Database Geographic Data Geographic Model Importing your Geographic Data (Optional) Spatial Queries – See GeoDjango Tutorial Geographic Friendly Admin Geo-Friendly API Mapbox Leaflet @HolaCorryn
74. MAPBOX • https://www.mapbox.com/ • Adds the map to your project • Call in your data through the API • Free to create an account @HolaCorryn
75. MAPBOX • http://hatamyar.com/mapping-with-geodjango-django-leaflet-and- mapbox.html • Code examples on how to add the mapbox tile to your html • http://imgur.com/JwhmTi0 • https://www.mapbox.com/mapbox.js/example/v1.0.0/geolocation/
76. BEGINNING YOUR GEODJANGO PROJECT CHECKLIST Spatial Database Geographic Data Geographic Model Importing your Geographic Data (Optional) Spatial Queries – See GeoDjango Tutorial Geographic Friendly Admin Geo-Friendly API Mapbox Leaflet @HolaCorryn
77. LEAFLET • Javascript for your map! • http://leafletjs.com/ • http://leafletjs.com/examples/geojson.html • Lots of tutorials @HolaCorryn
78. FINISHED PRODUCT @HolaCorryn
79. GEODJANGO EXAMPLES • http://ungmap.com (Campus > Gainesville) • Thanks Will Cox and Crystal Lyliston • http://theyburied.us/ • Professor Zac Miller’s and IESA student’s project @HolaCorryn
80. WHY GEODJANGO?! • Add maps to your project • Give clients a “Where” • Answer questions • Display data in a unique way @HolaCorryn
81. THANK YOU DjangoCon Europe Scholarship Professor J. Zac Miller, University of North Georgia Crystal Lyliston Will Cox Brandon Rumiser @HolaCorryn