Mapnik and Node.js

May 29, 2011Download as KEY, PDF5 likes4,651 views

Mapnik is an open source mapping library written in C++ that can be used to generate maps from various data sources. It has a core API in C++ and Python that provides flexibility in map generation. Mapnik works by using a drawing API to render maps and can integrate with other languages like Node.js. It is recommended for use due to being free, well supported by a large community, and its ability to easily integrate map generation into development workflows.

Mapnik and Friends
and why you should be using them

Think of Mapnik as a
drawing API for making
maps

Why should I mapnik?
• Free
• Well supported
• large community
• Integration with
other languages

Node.js in 5 bullets

• Server side JS based on
Google V8 compiler.

• Lead by members of the
Java VM hotspot team.

• Not interpreted.

• Faster and evented

node-mapnik
• ﬂexibility
• make maps from any other datasource -
geocouch, postgis, dynamic datasources,
CSV
• Map generation can be made part of
analytic pipeline
• (python api pretty good too)

Map generation
becomes part of your
developer toolkit

Links to more info

• Mapnik: http://mapnik.org/

• Mapnik OSX installer: http://dbsgeo.com/downloads/#mapnik-2.0.0

• Node.js: http://nodejs.org/

• node-mapnik: https://github.com/mapnik/node-mapnik

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Mapnik and Node.js

1. Mapnik and Friends and why you should be using them

2. What can it make?

6. How is it structured?

7. Not a server, not monolithic

8. Think of Mapnik as a drawing API for making maps

9. How does Mapnik work?

11. Core API is C++/ Python

12. There are other map tilers though...

13. Why should I use Mapnik?

14. Why should I mapnik? • Free • Well supported • large community • Integration with other languages

15. Cartography

16. Node.js in 5 bullets • Server side JS based on Google V8 compiler. • Lead by members of the Java VM hotspot team. • Not interpreted. • Faster and evented

17. node-mapnik • ﬂexibility • make maps from any other datasource - geocouch, postgis, dynamic datasources, CSV • Map generation can be made part of analytic pipeline • (python api pretty good too)

18. Fast

19. Demo!

20. Map generation becomes part of your developer toolkit

21. Links to more info • Mapnik: http://mapnik.org/ • Mapnik OSX installer: http://dbsgeo.com/downloads/#mapnik-2.0.0 • Node.js: http://nodejs.org/ • node-mapnik: https://github.com/mapnik/node-mapnik

Editor's Notes

#2: \n
#3: Maps! Quickly!\nOSM\nTOPOSM\nMapquest\nMost iPhone maps data\nVector, Raster\n
#4: Maps! Quickly!\nOSM\nTOPOSM\nMapquest\nMost iPhone maps data\nVector, Raster\n
#5: Maps! Quickly!\nOSM\nTOPOSM\nMapquest\nMost iPhone maps data\nVector, Raster\n
#6: Maps! Quickly!\nOSM\nTOPOSM\nMapquest\nMost iPhone maps data\nVector, Raster\n
#7: \n\n
#8: Svelte set of libraries used to generate maps via code.\nMapserver and friends are all huge hulking beasts. Think of Mapnik as a drawing API for making maps.\n
#9: \n
#10: \n
#11: Very similar to photoshop...\nBuild up canvas, add data from layers (text, raster, vector), add styles to layers (XML, CSS like languages), decide output formats\nrender.\n
#12: \n
#13: Mapserver\nGeoserver\nArcGIS Server\netc...\n
#14: Free\nWell supported and maintained, it's in the GSOC (CartoCSS support, Advanced Labelling and Windows support are 2011 projects), large community - OSM, IRC, Mailing lists\nWonderful API integration with Python, but more importantly, Node.js\n
#15: \n
#16: \n
#17: \n
#18: \n
#19: \n
#20: run code here: https://github.com/mapnik/node-mapnik/blob/master/examples/js_datasource/usgs_quakes.js\n
#21: \n
#22: \n

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