Specs

empty?(t()) :: boolean()

Returns true if the given GeometryCollectionM is empty.

Examples

iex> GeometryCollectionM.empty?(GeometryCollectionM.new())
true

iex> GeometryCollectionM.empty?(GeometryCollectionM.new([PointM.new(1, 2, 4)]))
false

Specs

from_geo_json(Geometry.geo_json_term()) ::
  {:ok, t()} | Geometry.geo_json_error()

Returns an :ok tuple with the GeometryCollectionM from the given GeoJSON term. Otherwise returns an :error tuple.

Examples

iex> ~s({
...>   "type": "GeometryCollection",
...>   "geometries": [
...>     {"type": "Point", "coordinates": [1.1, 2.2, 4.4]}
...>   ]
...> })
iex> |> Jason.decode!()
iex> |> GeometryCollectionM.from_geo_json()
{
  :ok,
  %GeometryCollectionM{
    geometries: MapSet.new([%PointM{coordinate: [1.1, 2.2, 4.4]}])
  }
}

Specs

from_geo_json!(Geometry.geo_json_term()) :: t()

The same as from_geo_json/1, but raises a Geometry.Error exception if it fails.

Specs

from_wkb(Geometry.wkb(), Geometry.mode()) ::
  {:ok, t()} | {:ok, t(), Geometry.srid()} | Geometry.wkb_error()

Returns an :ok tuple with the GeometryCollectionM from the given WKB string. Otherwise returns an :error tuple.

If the geometry contains a SRID the id is added to the tuple.

An example of a simpler geometry can be found in the description for the Geometry.PointM.from_wkb/2 function.

Specs

from_wkb!(Geometry.wkb(), Geometry.mode()) :: t() | {t(), Geometry.srid()}

The same as from_wkb/2, but raises a Geometry.Error exception if it fails.

Specs

from_wkt(Geometry.wkt()) ::
  {:ok, t()} | {:ok, t(), Geometry.srid()} | Geometry.wkt_error()

Returns an :ok tuple with the GeometryCollectionM from the given WKT string. Otherwise returns an :error tuple.

If the geometry contains a SRID the id is added to the tuple.

Examples

iex> GeometryCollectionM.from_wkt(
...>   "GeometryCollection M (Point M (1.1 2.2 4.4))")
{
  :ok,
  %GeometryCollectionM{
    geometries: MapSet.new([%PointM{coordinate: [1.1, 2.2, 4.4]}])
  }
}

iex> GeometryCollectionM.from_wkt(
...>   "SRID=123;GeometryCollection M (Point M (1.1 2.2 4.4))")
{
  :ok,
  %GeometryCollectionM{
    geometries: MapSet.new([%PointM{coordinate: [1.1, 2.2, 4.4]}])
  },
  123
}

iex> GeometryCollectionM.from_wkt("GeometryCollection M EMPTY")
{:ok, %GeometryCollectionM{}}

Specs

from_wkt!(Geometry.wkt()) :: t() | {t(), Geometry.srid()}

The same as from_wkt/1, but raises a Geometry.Error exception if it fails.

Specs

member?(t(), Geometry.t()) :: boolean()

Checks if GeometryCollectionM contains geometry.

Examples

iex> GeometryCollectionM.member?(
...>   GeometryCollectionM.new([
...>     PointM.new(11, 12, 14),
...>     LineStringM.new([
...>       PointM.new(21, 22, 24),
...>       PointM.new(31, 32, 34)
...>     ])
...>   ]),
...>   PointM.new(11, 12, 14)
...> )
true

iex> GeometryCollectionM.member?(
...>   GeometryCollectionM.new([
...>     PointM.new(11, 12, 14),
...>     LineStringM.new([
...>       PointM.new(21, 22, 24),
...>       PointM.new(31, 32, 34)
...>     ])
...>   ]),
...>   PointM.new(1, 2, 4)
...> )
false

Specs

new() :: t()

Creates an empty GeometryCollectionM.

Examples

iex> GeometryCollectionM.new()
%GeometryCollectionM{geometries: MapSet.new()}

Specs

new([Geometry.t()]) :: t()

Creates an empty GeometryCollectionM.

Examples

iex> GeometryCollectionM.new([
...>   PointM.new(1, 2, 4),
...>   LineStringM.new([PointM.new(1, 1, 1), PointM.new(2, 2, 2)])
...> ])
%GeometryCollectionM{geometries: MapSet.new([
  %PointM{coordinate: [1, 2, 4]},
  %LineStringM{points: [[1, 1, 1], [2, 2, 2]]}
])}

Specs

size(t()) :: non_neg_integer()

Returns the number of elements in GeometryCollectionM.

Examples

iex> GeometryCollectionM.size(
...>   GeometryCollectionM.new([
...>     PointM.new(11, 12, 14),
...>     LineStringM.new([
...>       PointM.new(21, 22, 24),
...>       PointM.new(31, 32, 34)
...>     ])
...>   ])
...> )
2

Specs

to_geo_json(t()) :: Geometry.geo_json_term()

Returns the GeoJSON term of a GeometryCollectionM.

Examples

iex> GeometryCollectionM.to_geo_json(
...> GeometryCollectionM.new([PointM.new(1.1, 2.2, 4.4)]))
%{
  "type" => "GeometryCollection",
  "geometries" => [
    %{
      "type" => "Point",
      "coordinates" => [1.1, 2.2, 4.4]
    }
  ]
}

Specs

to_list(t()) :: [Geometry.t()]

Converts GeometryCollectionM to a list.

Examples

iex> GeometryCollectionM.to_list(
...>   GeometryCollectionM.new([
...>     PointM.new(11, 12, 14)
...>   ])
...> )
[%PointM{coordinate: [11, 12, 14]}]

Specs

to_wkb(t(), opts) :: Geometry.wkb()
when opts: [endian: Geometry.endian(), srid: Geometry.srid()]

Returns the WKB representation for a GeometryCollectionM.

With option :srid an EWKB representation with the SRID is returned.

The option endian indicates whether :xdr big endian or :ndr little endian is returned. The default is :ndr.

The :mode determines whether a hex-string or binary is returned. The default is :binary.

An example of a simpler geometry can be found in the description for the Geometry.PointM.to_wkb/1 function.

Specs

to_wkt(t(), opts) :: Geometry.wkt() when opts: [{:srid, Geometry.srid()}]

Returns the WKT representation for a GeometryCollectionM. With option :srid an EWKT representation with the SRID is returned.

Examples

iex> GeometryCollectionM.to_wkt(GeometryCollectionM.new())
"GeometryCollection M EMPTY"

iex> GeometryCollectionM.to_wkt(
...>   GeometryCollectionM.new([
...>     PointM.new(1.1, 1.2, 1.4),
...>     PointM.new(2.1, 2.2, 2.4)
...>   ])
...> )
"GeometryCollection M (Point M (1.1 1.2 1.4), Point M (2.1 2.2 2.4))"

iex> GeometryCollectionM.to_wkt(
...>   GeometryCollectionM.new([PointM.new(1.1, 2.2, 4.4)]),
...>   srid: 4711)
"SRID=4711;GeometryCollection M (Point M (1.1 2.2 4.4))"