This document discusses integrating geospatial data into applications. It covers spatial data formats like raster, vector, and coordinate reference systems. It also discusses sources of free geospatial data and tools for working with spatial data like QGIS, GDAL, OGR and PostGIS. Finally, it discusses developing spatial web applications using frameworks like Leaflet, OpenLayers, GeoServer and GeoDjango along with processing and visualization libraries. A list of additional resources for geographic data, spatial databases, web mapping and spatial frameworks is also provided.

1. Integrating Geospatial Data to your
Applications
November 14, 2015
by Ian Panganiban

2. Hi I'm Ian
SRS II
Project PhilSHORE
Geodetic Engineer
Hackathons
lkpanganiban
@lkpanganiban
Ian Panganiban

3. Motivation

4. Agenda
Spatial 101
Data sources
Spatial app development
Beyond spatial

5. Spatial 101

6. Pixelated much?
Raster data
“a raster graphics image is a dot matrix
data structure representing a generally
rectangular grid of pixels”
GeoEye Satellite Imagery

7. Story of points, lines and polygons
Vector data
“Vector is a representation of the world using
points, lines, and polygons. Vector models
are useful for storing data that has discrete
boundaries, such as country borders, land
parcels, and streets.”
Java OSM Editor

8. Vector formats
Java OSM Editor
Geojson
GPX
Shapefiles

9. Coordinate Reference Systems
“Every dataset has a coordinate system, which is used to integrate it
with other geographic datasets within a common coordinate framework.
Allows you to perform various integrated analytical operations, such
as overlaying data layers from disparate sources and coordinate
systems.”

10. EPSG what?
“EPSG Geodetic Parameter Dataset is a structured dataset of
Coordinate Reference Systems and Coordinate Transformations”

11. Munging spatial data using GIS
QGIS in Action: Soil data of Isabela

12. Some free data :)
BSWM Maps
philgis.org
USGS - earthexplorerOSM data via QGIS plugin

13. Let's build some apps

14. A very spatial app
Frontend
Application Frameworks
Databases

15. A spatial baggage counter
Spatial databases
“A spatial database, or geodatabase is a database that is optimized
to store and query data that represents objects defined in a
geometric space. Most spatial databases allow representing simple
geometric objects such as points, lines and polygons.”
Spatialite

16. A look into PostGIS
extensions
Over 1000 functions
http://workshops.boundlessgeo.com/postgis-intro/

17. Choose your framework

18. Spatial libraries
“Spatial libraries allow you to read and write
spatial data. These libraries have spatial
processes like buffer, intersect and
transform.”

19. Using gdal for raster files
Cols: 16171
Rows: 20766
Bands: 1
Pixel value at 167,196: 32767
Minimum value of elevation: -197

20. Using ogr for vector files
Provinces: 82
Extent:
(116.92833709716797,
126.60534667968753,
4.586939811706543,
21.07014083862329)
Second Province: Agusan del Norte

21. Visualizing spatial data through
web maps
“What you see when you view a map on Mapbox or an embedded
map on your website is the result of many moving parts working
together.”
-Mapbox
Leaflet Openlayers 3

22. An open-source JavaScript library for
mobile-friendly interactive maps | Leaflet
Vladimir Agafonkin
Leaflet Plugins

23. A feature-packed library for all your
mapping needs | Openlayers 3

24. Add processing power to your web maps

25. Spatial frameworks
Cartaro: Geospatial Drupal

26. Spatial frameworks
Geonode: Django Application

27. Spatial frameworks
Geoserver: Java based geospatial server

28. Beyond spatial
Story Maps

29. Beyond spatial
3D Maps

30. Beyond spatial
Indoor Maps

31. Build and Contribute

32. List of Resources
geographic data
http://maptime.io/geodata/
http://mapschool.io/
http://spatialreference.org/ref/epsg/
spatial databases
http://dna.fernuni-hagen.de/papers/IntroSpatialDBMS.pdf
http://postgis.net/
http://workshops.boundlessgeo.com/postgis-intro/
web mapping
http://leafletjs.com/
http://openlayers.org/
visualization & processing
http://d3js.org/
http://turfjs.org/
http://www.gdal.org/gdal_tutorial.html

33. List of Resources
visualization & processing
http://geotools.org/
http://raphaeljs.com/
spatial data repository
http://philgis.org/
http://www.bswm.maps.da.gov.ph/maps-library
http://earthexplorer.usgs.gov/
spatial frameworks
http://cartaro.org/
http://geoserver.org/
http://geodjango.org/
http://geonode.org/

34. Do you have any questions?

35. Thank you
“Everything is related to everything else, but near
things are more related than distant things.”
-Waldo Tobler

36. Integrating Geospatial Data to your
Applications
November 14, 2015
by Ian Panganiban