Simple features (2)
Seven most common types:
| type | description |
|---|---|
POINT |
single point |
LINESTRING |
sequence of points connected by straight, non-self intersecting line pieces |
POLYGON |
sequence of points form a closed, non-self intersecting ring; zero or more subsequent rings denote holes |
MULTIPOINT |
set of points |
MULTILINESTRING |
set of linestrings |
MULTIPOLYGON |
set of polygons |
GEOMETRYCOLLECTION |
set of geometries of any type except GEOMETRYCOLLECTION |
(Based on vignette 1 of sf package)