rmapshaper: rmapshaper: Client for 'mapshaper' for 'Geospatial'...

In rmapshaper: Client for 'mapshaper' for 'Geospatial' Operations

rmapshaper: Client for 'mapshaper' for 'Geospatial' Operations

Description

Edit and simplify 'geojson', 'Spatial', and 'sf' objects. This is wrapper around the 'mapshaper' 'javascript' library by Matthew Bloch https://github.com/mbloch/mapshaper/ to perform topologically-aware polygon simplification, as well as other operations such as clipping, erasing, dissolving, and converting 'multi-part' to 'single-part' geometries.

rmapshaper functions

All functions

• ms_simplify - simplify polygons or lines

• ms_clip - clip an area out of a layer using a polygon layer or a bounding box. Works on polygons, lines, and points

• ms_erase - erase an area from a layer using a polygon layer or a bounding box. Works on polygons, lines, and points

• ms_dissolve - aggregate polygon features, optionally specifying a field to aggregate on. If no field is specified, will merge all polygons into one.

• ms_explode - convert multipart shapes to single part. Works with polygons, lines, and points in geojson format, but currently only with polygons and lines in the Spatial classes (not SpatialMultiPoints and SpatialMultiPointsDataFrame).

• ms_lines - convert polygons to topological boundaries (lines)

• ms_innerlines - convert polygons to shared inner boundaries (lines)

• ms_points - create points from a polygon layer

• ms_filter_fields - Remove fields from the attributes

• ms_filter_islands - Remove small detached polygons

Author(s)

Andy Teucher [e-mail]

rmapshaper documentation built on April 11, 2023, 5:55 p.m.