Function reference

All functions

apply_mapshaper_commands()

Apply a mapshaper command string to a geojson object

check_sys_mapshaper()

Check the system mapshaper

drop_null_geometries()

Drop features from a geo_json FeatureCollection with null geometries

ms_clip()

Remove features or portions of features that fall outside a clipping area.

ms_dissolve()

Aggregate shapes in a polygon or point layer.

ms_erase()

Remove features or portions of features that fall inside a specified area

ms_explode()

Convert multipart lines or polygons to singlepart

ms_filter_fields()

Delete fields in the attribute table

ms_filter_islands()

Remove small detached polygons (islands)

ms_innerlines()

Create a line layer consisting of shared boundaries with no attribute data

ms_lines()

Convert polygons to topological boundaries (lines)

ms_points()

Create points from a polygon layer

ms_simplify()

Topologically-aware geometry simplification.