dbetebenner/d3_01192017

D3 Block-a-Day: Day 19, January, 19th 2017

D3 Block-a-Day: Day 19, January, 19th 2017

New Year's Resolution for 2017: Make a D3 Block a day to teach myself D3. This is Number 19. This example builds on yesterday's USA district map adding in the layer showing state boundaries so that the map has better legibility. It also wires up the tooltip and zoom! The visualization shows Alaska and Hawaii in the lower left using D3's geoAlbersUsa projection. The topoJSON files used to construct this visualization were created by me using shape files compiled by the NCES and the United States Census Bureau. The Center for Assessment makes these state and national school district topoJSON files available for anyone to use in their own development.

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