View Source Geometry.Polygon (Geometry v0.4.0)
A polygon struct, representing a 2D polygon.
A none empty line-string requires at least one ring with four points.
Link to this section Summary
Link to this section Types
@type t() :: %Geometry.Polygon{rings: [Geometry.coordinates()]}
Link to this section Functions
@spec new() :: t()
Creates an empty Polygon.
examples
Examples
iex> Polygon.new()
%Polygon{rings: []}@spec new([Geometry.LineString.t()]) :: t()
Creates a Polygon from the given rings.
examples
Examples
iex> Polygon.new([
...> LineString.new([
...> Point.new(35, 10),
...> Point.new(45, 45),
...> Point.new(10, 20),
...> Point.new(35, 10)
...> ]),
...> LineString.new([
...> Point.new(20, 30),
...> Point.new(35, 35),
...> Point.new(30, 20),
...> Point.new(20, 30)
...> ])
...> ])
%Polygon{
rings: [
[[35, 10], [45, 45], [10, 20], [35, 10]],
[[20, 30], [35, 35], [30, 20], [20, 30]]
]
}
iex> Polygon.new()
%Polygon{}