index.html
README.md
useMassGeo.js
styles.css
useCountyData.js
ColorLegend.js
Marks1.js
index.js
bundle.js
new fileforkset heightexportdelete
Massachusetts Chrolopleth map with interactive legend and viewbox
wenleicao

This Map show county boundry of Massachusetts

Geo Shape file are from here

The download Shape file did not contain coordination. Therefore, it is first converted to geojson by ogr2ogr

Geojson then reprocessed by mapshaper to Topojson.

Topojson file is loaded to Github gist

City to County map csv is loaded to gist

legend is added and make it interactive with mouse movement

All code in VizHub is released under the MIT License.