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Tools for editing Shapefile, GeoJSON, TopoJSON and CSV files

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Would be nice to support gz compressed GeoJSONs for input and output for bigger datasets. When using streams it could look something like this: ``` TS if (this.options.gz) { outStream...

This tool is amazing. It would be nice if one could `npm install` it and then `import mapshaper from 'mapshaper'` in a browser app by avoiding all the file input...

Hi, first of all thanks for building mapshaper. Its such an incredible tool with so many cool commands. I am probably missing the correct the way to do the following:...

Currently I'm joining two datasets, POINTS (bands) and POLY (admin units with population, defined as UN_2020_E), and would love to calculate both the sum, and per capita statistics in one...

Hi, If I have a 100 polygons gejson file and 15 rows CSV file and run ``` mapshaper aree.geojson -join codes.csv keys=ID,ID -o tmp.geojson ``` I have in output a...

GPKG support would be very helpful. They are smaller than GeoJson files and support longer attribute names as shapefile.

Windows 10 mapshaper 0.5.85 When I deal with a large (780MB zip, 1.05GB shp inside) https://osmdata.openstreetmap.de/download/land-polygons-complete-3857.zip ```sh # shapefile, -dissolve, ok mapshaper-xl ^ -i ./tmp/land-polygons-complete-3857/land_polygons.shp ^ -filter-fields ^ -dissolve ^...

Hi everyone, I am quite new to editing shape files so apologies for the ignorance here. ### Context: As a result of a recent merge of local districts in England,...

Is there anyway to aggregate polygons like Arcgis's aggregate-polygons Tool? Like in https://desktop.arcgis.com/en/arcmap/10.3/tools/coverage-toolbox/aggregate-polygons.htm Something like: ![image](https://user-images.githubusercontent.com/1532967/143832185-0a096349-f981-416a-b31b-df2b1002119a.png) Snap or dissolve seems can't do this

Hi, PS: Not a native english speaker, so chances are my terminology isn't entirely correct. First of all, a big thank you for creating this awesome tool. It's doing really...