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Washington LD KML Files

Fri, 03/02/2012 - 16:41 — chadlupkes

We have an incredible team of programmers working to help us organize in Washington State. Dave Bradlee provides the files and content of this post:

There is a KML file for each legislative district, named vt53_<n>.kml, where n is the LD number. Each file contains shapes for all precincts in the LD, including split precincts partially in the LD, colored with 11 different colors, ordered alphabetically. The overall LD shape with no fill is also included. Each precinct lists the total population and voter age population (VAP).

The KMLs work well in Google Earth (download at earth.google.com). They can be loaded in Google Maps, but because there are so many polygons, Google Maps will divide the polygons into 4 to 10 sections, so you cannot view them all at once.

All of these were produced by a tool I authored. Inputs are
- Precinct shapefiles (from Census 2010)
- Precinct population info (from Census 2010)
- Census block to precinct mapping info (from Census 2010)
- Block equivalency file (FINALLEG2011.txt) (from the state redistricting commission)
- LD District KML (FINAL_LEGISLATIVE_PLAN_2011.kmz) (from the state redistricting commission)

The tool also reduces the polygon complexity somewhat using the Douglas-Peucker algorithm.

Please contact me with questions or comments. Thanks.

Dave Bradlee
Seattle, WA
gardow.com/davebradlee
redistricting@gardow.com

1st LD, 2nd LD, 3rd LD, 4th LD, 5th LD, 6th LD, 7th LD, 8th LD, 9th LD, 10th LD, 11th LD, 12th LD, 13th LD, 14th LD, 15th LD, 16th LD, 17th LD, 18th LD, 19th LD, 20th LD, 21st LD, 22nd LD, 23rd LD, 24th LD, 25th LD, 26th LD, 27th LD, 28th LD, 29th LD, 30th LD, 31st LD, 32nd LD, 33rd LD, 34th LD, 35th LD, 36th LD, 37th LD, 38th LD, 39th LD, 40th LD, 41st LD, 42nd LD, 43th LD, 44th LD, 45th LD, 46th LD, 47th LD, 48th LD, 49th LD

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