TopoJSON

• 授权协议: BSD
• 开发语言:
• 操作系统: 跨平台
• 软件首页: https://github.com/mbostock/topojson

软件介绍

TopoJSON 是 GeoJSON 的扩展，增加了拓扑逻辑的编码。

Rather than representing geometries discretely, geometries in TopoJSON files are stitched together from shared line segments called arcs. TopoJSON eliminates redundancy, offering much more compact representations of geometry than with GeoJSON; typical TopoJSON files are 80% smaller than their GeoJSON equivalents. In addition, TopoJSON facilitates applications that use topology, such as topology-preserving shape simplification, automatic map coloring, and cartograms.

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