A `Surface`

is a two-dimensional geometry. It
is a noninstantiable class. Its only instantiable subclass is
`Polygon`

.

`Surface`

Properties

A

`Surface`

is defined as a two-dimensional geometry.The OpenGIS specification defines a simple

`Surface`

as a geometry that consists of a single “patch” that is associated with a single exterior boundary and zero or more interior boundaries.The boundary of a simple

`Surface`

is the set of closed curves corresponding to its exterior and interior boundaries.