# Vector Data

Vector data consists of potentially linked points defined by coordinates that can form complex geometries with assigned attributes.

## Vector data model

In a Cartesian coordinate system, which is necessary for the representation of a Euclidean geometry,
arbitrarily complex spatial structures for the modelling of geoobjects can be constructed starting from the most basic element: a single *point*.

If there is more than one point – or *node* in topological notation – in the coordinate system we can connect these points by a *line* or a *linestring*, which is topologically called an *edge*.

If more than two points are connected by an edge and a closed surface arises, we speak of a *polygon* or topologically of a *mesh*.
In the context of spatial data and Geographic Information Systems, nodes are usually referred to as points, non-closed connections of edges as lines, and meshes as polygons.

### More Information

- More detailed information for vector data can be found at Geocomputation with R - Vector data.