GeoJson to Shapefile Conversion using Quantum GIS
In term of geospatial data, GeoJSON supports the following geometry types: Point
, LineString
, Polygon
, MultiPoint
, MultiLineString
, and MultiPolygon
. Geometric objects with additional properties are Feature
objects. Sets of features are contained by FeatureCollection
objects.
Compared to other geospatial data format, GeoJSON is easy to maintain, simple, and plain just like XML, so it can be edited using certain parser or renderer dedicated to GeoJSON. Almost every Mapping API Framework like Mapbox, ArcGIS, Leaflet, Open Layers, or many others already support GeoJSON as one of the output format of their standardized mapping API.
One strange things about this format is, there are not many Desktop GIS Software that can read this format in proper way. Quantum GIS and Global Mapper are two GIS software that already support this format in file-based data. The others are nothing, at least until this article are written.
GeoJSON also have compatibility with other format like Shapefile, KML, Map info, CAD DXF/DWG or any other geospatial vector data format. This is because GeoJSON just like them. It is designed to model the geographic phenomena in point, line or polygon format, so conversion between format are possible and can be done without worrying lose some part or many part of the data.
Now if you are curious to know more about GeoJSON and looking for a way to make a GeoJSON to be served in web, and currently you only have standard geospatial data format like shapefile, this video tutorial below may be suit you.
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