Convert to GIS formats with advanced options Leave feedback
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GroupDocs.Conversion provides the GisConvertOptions class to specify GIS (Geographic Information System) file format conversion settings.
The following GIS (Geographic Information System) formats are supported:
| Format | Extension | Description |
|---|---|---|
| GeoJSON | .geojson | JSON-based format for geographical features |
| KML | .kml | Keyhole Markup Language (Google Earth) |
| GPX | .gpx | GPS Exchange Format |
| TopoJSON | .topojson | GeoJSON extension with topology encoding |
| GML | .gml | Geography Markup Language (XML-based) |
| OSM | .osm | OpenStreetMap XML format |
| SHP | .shp | ESRI Shapefile |
| GDB | .gdb | ESRI Geodatabase |
Format - Specifies the desired GIS file format. Available options are: GeoJson, Kml, Gpx, TopoJson, Gml, Osm, Shp, Gdb.
GisConvertOptions supports conversion between GIS formats. The following examples demonstrate common conversions.
Convert a GeoJSON file to KML (Keyhole Markup Language) for Google Earth:
using GroupDocs.Conversion;
using GroupDocs.Conversion.Options.Convert;
using GroupDocs.Conversion.FileTypes;
string sourceFile = "geographic-data.geojson";
string outputFile = "geographic-data.kml";
using (var converter = new Converter(sourceFile))
{
var options = new GisConvertOptions
{
Format = GisFileType.Kml
};
converter.Convert(outputFile, options);
}
Convert a GPX (GPS Exchange Format) file to GeoJSON:
using GroupDocs.Conversion;
using GroupDocs.Conversion.Options.Convert;
using GroupDocs.Conversion.FileTypes;
string sourceFile = "tracking-route.gpx";
string outputFile = "tracking-route.geojson";
using (var converter = new Converter(sourceFile))
{
var options = new GisConvertOptions
{
Format = GisFileType.GeoJson
};
converter.Convert(outputFile, options);
}
Convert a GeoJSON file to TopoJSON format for topology-preserving conversions:
using GroupDocs.Conversion;
using GroupDocs.Conversion.Options.Convert;
using GroupDocs.Conversion.FileTypes;
string sourceFile = "map-boundaries.geojson";
string outputFile = "map-boundaries.topojson";
using (var converter = new Converter(sourceFile))
{
var options = new GisConvertOptions
{
Format = GisFileType.TopoJson
};
converter.Convert(outputFile, options);
}
GIS to GIS conversions are supported for most format combinations:
- GeoJSON → KML, GPX, TopoJSON, GML
- KML → GeoJSON, GPX, TopoJSON
- GPX → GeoJSON, KML, TopoJSON
- GML → GeoJSON, KML, GPX, TopoJSON
- OSM → GeoJSON, KML, GPX, TopoJSON
- TopoJSON → GeoJSON, KML, GPX
Note: To convert FROM GIS formats to PDF, images, or other document formats, use PdfConvertOptions, ImageConvertOptions, or other appropriate ConvertOptions classes.
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