• Stars
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    208
  • Rank 189,015 (Top 4 %)
  • Language
    JavaScript
  • Created over 8 years ago
  • Updated almost 2 years ago

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Repository Details

Generate geojson files for Echarts Map,base on mapshaper(Echarts 地图数据压缩转换)

mapshaper-plus

Generate geojson files for Apache ECharts (incubating) Map,base on mapshaper

基于mapshaper对geojson地图数据的坐标信息进行压缩编码,并提供可直接生成压缩编码后的echarts map数据格式

通过mapshaper-plus可以直接将shp格式数据转换为压缩后的echarts数据

Demo

https://giscafer.github.io/mapshaper-plus/

Description

介绍 ——mapshaper可以将多种数据格式(Shapefile, GeoJSON, TopoJSON 和 Zip files)导入后,对地图的编辑和导出(Shapefile, GeoJSON, TopoJSON, DSV, SVG),功能强大和简单易用。

mapshaper-plus是在mapshaper基础上拓展对地图坐标信息的压缩编码,很大程度上减小了文件的代码行数和字节大小:譬如一个贵州省的数据,原始的geojson数据会在30M左右,但在对坐标信息压缩编码后,仅为1.4M

背景 ——在做echarts图表统计时,需要自制地图数据,但官方没有提供一个平台可以直接将shp文件转化为压缩后的jsonjs格式的地图文件,而mapshaper导出的json数据没有压缩,数据量过大。

使用可以访问mapshaper-plus在线demo

Screenshot

导出压缩版的数据

License

mapshaper is licensed under MPL 2.0. and mapshaper-plus is licensed under MIT.

Blog giscafer.com  ·  GitHub @giscafer  ·  Weibo @Nickbing Lao

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