Walter Svekla wsvekla

These national, departmental, and municipal boundaries for Guatemala are extracted from a single, topology-encoded GeoJSON file using D3 and TopoJSON. Original shapefiles were sourced from the GADM database of Global Administrative Areas.

Estos límites municipales de Guatemala se extraen de un archivo GeoJSON guardado en una tabla en CartoDB. Shapefile original fue recogido de GADM, la base de datos de global áreas administrativas.

Mapping and ID-ing Philadelphia 2010 Census Tracts with D3 and TopoJSON

Mouseover streets in this D3.js-driven visualization that allows users to visualize the citywide extent of a given street. The City of Philadelphia Streets Department maintains and distributes geospatial data representing and describing the city's street network. The data along with more information is availabe at Open Data Philly. Street location and name data is stored in a CartoDB table. A merge by attribute operation, street name in this case, achieved improvements over the previous file size that approached 3MB.

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