Here is another take on the Lawrence Township School Districts,

I took the parcel outlines from mercer county and associated them to schools via a ruby script, as an output we have a set of shape files.

lawrence3

Then I converted them to points using qgis “extract nodes”

 

lawrence2

Then I used the voronoi polygons on them to calculate regions,

lawrence4

and clipped it with buffered region

Finally I dissolved all the borders between the school regions to give the simple borders:

lawrenceFinally I used the qgis web export to create a website :

(export to web map)

http://codefortrenton.github.io/school-districts/mercer/lawrence/

You can find my scripts to convert and look up the data here:

https://github.com/h4ck3rm1k3/shawnee-county-osm-landuse

and the data for the school districts here:

https://github.com/codefortrenton/school-districts

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