Specs

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

Returns true if the given MultiLineStringM is empty.

Examples

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

iex> MultiLineStringM.empty?(
...>   MultiLineStringM.new([
...>     LineStringM.new([PointM.new(1, 2, 4), PointM.new(3, 4, 6)])
...>   ])
...> )
false

Specs

from_coordinates([Geometry.coordinate()]) :: t()

Creates a MultiLineStringM from the given coordinates.

Examples

iex> MultiLineStringM.from_coordinates([
...>   [[-1, 1, 1], [2, 2, 2], [-3, 3, 3]],
...>   [[-10, 10, 10], [-20, 20, 20]]
...> ])
%MultiLineStringM{
  line_strings:
    MapSet.new([
      [[-1, 1, 1], [2, 2, 2], [-3, 3, 3]],
      [[-10, 10, 10], [-20, 20, 20]]
    ])
}

Specs

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

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

Examples

iex> ~s(
...>   {
...>     "type": "MultiLineString",
...>     "coordinates": [
...>       [[-1, 1, 1], [2, 2, 2], [-3, 3, 3]],
...>       [[-10, 10, 10], [-20, 20, 20]]
...>     ]
...>   }
...> )
iex> |> Jason.decode!()
iex> |> MultiLineStringM.from_geo_json()
{:ok,
 %Geometry.MultiLineStringM{
   line_strings:
     MapSet.new([
       [[-10, 10, 10], [-20, 20, 20]],
       [[-1, 1, 1], [2, 2, 2], [-3, 3, 3]]
     ])
 }}

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 MultiLineStringM 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 MultiLineStringM 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> MultiLineStringM.from_wkt("
...>   SRID=1234;MultiLineString M (
...>     (10 20 45, 20 10 15, 20 40 15),
...>     (40 30 20, 30 30 30)
...>   )
...> ")
{
  :ok,
  %MultiLineStringM{
    line_strings:
      MapSet.new([
        [[10, 20, 45], [20, 10, 15], [20, 40, 15]],
        [[40, 30, 20], [30, 30, 30]]
      ])
  },
  1234
}

iex> MultiLineStringM.from_wkt("MultiLineString M EMPTY")
{:ok, %MultiLineStringM{}}

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.LineStringM.t()) :: boolean()

Checks if MultiLineStringM contains line_string.

Examples

iex> MultiLineStringM.member?(
...>   MultiLineStringM.new([
...>     LineStringM.new([
...>       PointM.new(11, 12, 14),
...>       PointM.new(21, 22, 24)
...>     ]),
...>     LineStringM.new([
...>       PointM.new(31, 32, 34),
...>       PointM.new(41, 42, 44)
...>     ])
...>   ]),
...>   LineStringM.new([
...>     PointM.new(31, 32, 34),
...>     PointM.new(41, 42, 44)
...>   ])
...> )
true

iex> MultiLineStringM.member?(
...>   MultiLineStringM.new([
...>     LineStringM.new([
...>       PointM.new(11, 12, 14),
...>       PointM.new(21, 22, 24)
...>     ]),
...>     LineStringM.new([
...>       PointM.new(31, 32, 34),
...>       PointM.new(41, 42, 44)
...>     ])
...>   ]),
...>   LineStringM.new([
...>     PointM.new(11, 12, 14),
...>     PointM.new(41, 42, 44)
...>   ])
...> )
false

Specs

new() :: t()

Creates an empty MultiLineStringM.

Examples

iex> MultiLineStringM.new()
%MultiLineStringM{line_strings: MapSet.new()}

Specs

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

Creates a MultiLineStringM from the given Geometry.MultiLineStringMs.

Examples

iex> MultiLineStringM.new([
...>   LineStringM.new([
...>     PointM.new(1, 2, 4),
...>     PointM.new(2, 3, 5),
...>     PointM.new(3, 4, 6)
...>   ]),
...>   LineStringM.new([
...>     PointM.new(10, 20, 40),
...>     PointM.new(30, 40, 60)
...>   ]),
...>   LineStringM.new([
...>     PointM.new(10, 20, 40),
...>     PointM.new(30, 40, 60)
...>   ])
...> ])
%Geometry.MultiLineStringM{
  line_strings:
    MapSet.new([
      [[1, 2, 4], [2, 3, 5], [3, 4, 6]],
      [[10, 20, 40], [30, 40, 60]]
    ])
}

iex> MultiLineStringM.new([])
%MultiLineStringM{line_strings: MapSet.new()}

Specs

size(t()) :: non_neg_integer()

Returns the number of elements in MultiLineStringM.

Examples

iex> MultiLineStringM.size(
...>   MultiLineStringM.new([
...>     LineStringM.new([
...>       PointM.new(11, 12, 14),
...>       PointM.new(21, 22, 24)
...>     ]),
...>     LineStringM.new([
...>       PointM.new(31, 32, 34),
...>       PointM.new(41, 42, 44)
...>     ])
...>   ])
...> )
2

Specs

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

Returns the GeoJSON term of a MultiLineStringM.

There are no guarantees about the order of line-strings in the returned coordinates.

Examples

[
  [[-1, 1, 1], [2, 2, 2], [-3, 3, 3]],
  [[-10, 10, 10], [-20, 20, 20]]
]
|> MultiLineStringM.from_coordinates()
MultiLineStringM.to_geo_json(
  MultiLineStringM.new([
    LineStringM.new([
      PointM.new(-1, 1, 1),
      PointM.new(2, 2, 2),
      PointM.new(-3, 3, 3)
    ]),
    LineStringM.new([
      PointM.new(-10, 10, 10),
      PointM.new(-20, 20, 20)
    ])
  ])
)
# =>
# %{
#   "type" => "MultiLineString",
#   "coordinates" => [
#     [[-1, 1, 1], [2, 2, 2], [-3, 3, 3]],
#     [[-10, 10, 10], [-20, 20, 20]]
#   ]
# }

Specs

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

Converts MultiLineStringM to a list.

Specs

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

Returns the WKB representation for a MultiLineStringM.

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 :xdr.

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

There are no guarantees about the order of line-strings in the returned WKT-string.

Examples

MultiLineStringM.to_wkt(MultiLineStringM.new())
# => "MultiLineString M EMPTY"

MultiLineStringM.to_wkt(
  MultiLineStringM.new([
    LineStringM(
      [PointM.new(7.1, 8.1, 1), PointM.new(9.2, 5.2, 2)]
    ),
    LineStringM(
      [PointM.new(5.5, 9.2, 1), PointM.new(1.2, 3.2, 2)]
    )
  ])
)
# Returns a string without any \n or extra spaces (formatted just for readability):
# MultiLineString M (
#   (5.5 9.2 1, 1.2 3.2 2),
#   (7.1 8.1 1, 9.2 5.2 2)
# )

MultiLineStringM.to_wkt(
  MultiLineStringM.new([
    LineStringM(
      [PointM.new(7.1, 8.1, 1), PointM.new(9.2, 5.2, 2)]
    ),
    LineStringM(
      [PointM.new(5.5, 9.2, 1), PointM.new(1.2, 3.2, 2)]
    )
  ]),
  srid: 555
)
# Returns a string without any \n or extra spaces (formatted just for readability):
# SRID=555;MultiLineString M (
#   (5.5 9.2 1, 1.2 3.2 2),
#   (7.1 8.1 1, 9.2 5.2 2)
# )