Geometry.MultiPolygonM (Geometry v1.1.0)

A set of polygons from type Geometry.PolygonM

MultiPointM implements the protocols Enumerable and Collectable.

Examples

iex> Enum.map(
...>   MultiPolygonM.new([
...>     PolygonM.new([
...>       LineStringM.new([
...>         PointM.new(11, 12, 14),
...>         PointM.new(11, 22, 24),
...>         PointM.new(31, 22, 34),
...>         PointM.new(11, 12, 14)
...>       ]),
...>     ]),
...>     PolygonM.new([
...>       LineStringM.new([
...>         PointM.new(35, 10, 14),
...>         PointM.new(45, 45, 24),
...>         PointM.new(10, 20, 34),
...>         PointM.new(35, 10, 14)
...>       ]),
...>       LineStringM.new([
...>         PointM.new(20, 30, 14),
...>         PointM.new(35, 35, 24),
...>         PointM.new(30, 20, 34),
...>         PointM.new(20, 30, 14)
...>       ])
...>     ])
...>   ]),
...>   fn polygon -> length(polygon) == 1 end
...> )
[true, false]

iex> Enum.into(
...>   [
...>     PolygonM.new([
...>       LineStringM.new([
...>         PointM.new(11, 12, 14),
...>         PointM.new(11, 22, 24),
...>         PointM.new(31, 22, 34),
...>         PointM.new(11, 12, 14)
...>       ])
...>     ])
...>   ],
...>   MultiPolygonM.new())
%MultiPolygonM{
  polygons: [
      [
        [
          [11, 12, 14],
          [11, 22, 24],
          [31, 22, 34],
          [11, 12, 14]
        ]
      ]
    ],
    srid: 0
}

Summary

Types

t()

Functions

new()

Creates an empty MultiPolygonM.

new(polygons, srid \\ 0)

Creates a MultiPolygonM from the given Geometry.MultiPolygonMs.

Types

t()

@type t() :: %Geometry.MultiPolygonM{
  polygons: [[Geometry.ring()]],
  srid: Geometry.srid()
}

Functions

new()

@spec new() :: t()

Creates an empty MultiPolygonM.

Examples

iex> MultiPolygonM.new()
%MultiPolygonM{}

new(polygons, srid \\ 0)

@spec new([Geometry.PolygonM.t()], Geometry.srid()) :: t()

Creates a MultiPolygonM from the given Geometry.MultiPolygonMs.

Examples

iex> MultiPolygonM.new([
...>   PolygonM.new([
...>     LineStringM.new([
...>       PointM.new(6, 2, 4),
...>       PointM.new(8, 2, 5),
...>       PointM.new(8, 4, 6),
...>       PointM.new(6, 2, 4)
...>     ]),
...>   ]),
...>   PolygonM.new([
...>     LineStringM.new([
...>       PointM.new(1, 1, 4),
...>       PointM.new(9, 1, 5),
...>       PointM.new(9, 8, 6),
...>       PointM.new(1, 1, 4)
...>     ]),
...>     LineStringM.new([
...>       PointM.new(6, 2, 4),
...>       PointM.new(7, 2, 5),
...>       PointM.new(7, 3, 6),
...>       PointM.new(6, 2, 4)
...>     ])
...>   ])
...> ])
%MultiPolygonM{
  polygons: [
      [[[6, 2, 4], [8, 2, 5], [8, 4, 6], [6, 2, 4]]],
      [
        [[1, 1, 4], [9, 1, 5], [9, 8, 6], [1, 1, 4]],
        [[6, 2, 4], [7, 2, 5], [7, 3, 6], [6, 2, 4]]
      ]
    ]
}

iex> MultiPolygonM.new([])
%MultiPolygonM{}