Class: MultiPolygon

Extends

• SimpleGeometry

Methods

appendPolygon(polygon)

geom/MultiPolygon.js, line 125

Append the passed polygon to this multipolygon.

Name	Type	Description
polygon	Polygon	Polygon.

changed() inherited

Observable.js, line 68

Increases the revision counter and dispatches a 'change' event.

clone(){MultiPolygon} inherited

geom/MultiPolygon.js, line 150

Make a complete copy of the geometry.

Returns:

Clone.

dispatchEvent(event){boolean | undefined} inherited

events/Target.js, line 85

Dispatches an event and calls all listeners listening for events of this type. The event parameter can either be a string or an Object with a type property.

Name	Type	Description
event	BaseEvent | string	Event object.

Returns:

false if anyone called preventDefault on the event object or if any of the listeners returned false.

get(key){*} inherited

Object.js, line 135

Gets a value.

Name	Type	Description
key	string	Key name.

Returns:

Value.

getArea(){number}

geom/MultiPolygon.js, line 227

Return the area of the multipolygon on projected plane.

Returns:

Area (on projected plane).

getClosestPoint(point, closestPoint){Coordinate} inherited

geom/Geometry.js, line 152

Return the closest point of the geometry to the passed point as coordinate.

Name	Type	Description
point	Coordinate	Point.
closestPoint	Coordinate | undefined	Closest point.

Returns:

Closest point.

getCoordinates(right){Array<Array<Array<Coordinate>>>} inherited

geom/MultiPolygon.js, line 250

Get the coordinate array for this geometry. This array has the structure of a GeoJSON coordinate array for multi-polygons.

Name	Type	Description
right	boolean | undefined	Orient coordinates according to the right-hand rule (counter-clockwise for exterior and clockwise for interior rings). If false, coordinates will be oriented according to the left-hand rule (clockwise for exterior and counter-clockwise for interior rings). By default, coordinate orientation will depend on how the geometry was constructed.

Returns:

Coordinates.

getExtent(extent){Extent} inherited

geom/Geometry.js, line 185

Get the extent of the geometry.

Name	Type	Description
extent	Extent | undefined	Extent.

Returns:

extent Extent.

getFirstCoordinate(){Coordinate} inherited

geom/SimpleGeometry.js, line 69

Return the first coordinate of the geometry.

Returns:

First coordinate.

getInteriorPoints(){MultiPoint}

geom/MultiPolygon.js, line 309

Return the interior points as multipoint.

Returns:

Interior points as XYM coordinates, where M is the length of the horizontal intersection that the point belongs to.

getKeys(){Array.<string>} inherited

Object.js, line 148

Get a list of object property names.

Returns:

List of property names.

getLastCoordinate(){Coordinate} inherited

geom/SimpleGeometry.js, line 85

Return the last coordinate of the geometry.

Returns:

Last point.

getLayout(){GeometryLayout} inherited

geom/SimpleGeometry.js, line 96

Return the layout of the geometry.

Returns:

Layout.

getPolygon(index){Polygon}

geom/MultiPolygon.js, line 367

Return the polygon at the specified index.

Name	Type	Description
index	number	Index.

Returns:

Polygon.

getPolygons(){Array<Polygon>}

geom/MultiPolygon.js, line 397

Return the polygons of this multipolygon.

Returns:

Polygons.

getProperties(){Object.<string, *>} inherited

Object.js, line 157

Get an object of all property names and values.

Returns:

Object.

getRevision(){number} inherited

Observable.js, line 79

Get the version number for this object. Each time the object is modified, its version number will be incremented.

Returns:

Revision.

getType(){Type} inherited

geom/MultiPolygon.js, line 428

Get the type of this geometry.

Returns:

Geometry type.

intersectsCoordinate(coordinate){boolean} inherited

geom/Geometry.js, line 165

Returns true if this geometry includes the specified coordinate. If the coordinate is on the boundary of the geometry, returns false.

Name	Type	Description
coordinate	Coordinate	Coordinate.

Returns:

Contains coordinate.

intersectsExtent(extent){boolean} inherited

geom/MultiPolygon.js, line 439

Test if the geometry and the passed extent intersect.

Name	Type	Description
extent	Extent	Extent.

Returns:

true if the geometry and the extent intersect.

on(type, listener){EventsKey | Array<EventsKey>} inherited

Observable.js, line 152

Listen for a certain type of event.

Name	Type	Description
type	string | Array.<string>	The event type or array of event types.
listener	function	The listener function.

Returns:

Unique key for the listener. If called with an array of event types as the first argument, the return will be an array of keys.

once(type, listener){EventsKey | Array<EventsKey>} inherited

Observable.js, line 164

Listen once for a certain type of event.

Name	Type	Description
type	string | Array.<string>	The event type or array of event types.
listener	function	The listener function.

Returns:

Unique key for the listener. If called with an array of event types as the first argument, the return will be an array of keys.

set(key, value, silent) inherited

Object.js, line 215

Sets a value.

Name	Type	Description
key	string	Key name.
value	*	Value.
silent	boolean | undefined	Update without triggering an event.

setCoordinates(coordinates, layout) inherited

geom/MultiPolygon.js, line 456

Set the coordinates of the multipolygon.

Name	Type	Description
coordinates	Array<Array<Array<Coordinate>>>	Coordinates.
layout	GeometryLayout | undefined	Layout.

setProperties(values, silent) inherited

Object.js, line 235

Sets a collection of key-value pairs. Note that this changes any existing properties and adds new ones (it does not remove any existing properties).

Name	Type	Description
values	Object.<string, *>	Values.
silent	boolean | undefined	Update without triggering an event.

simplify(tolerance){Geometry} inherited

geom/Geometry.js, line 231

Create a simplified version of this geometry. For linestrings, this uses the Douglas Peucker algorithm. For polygons, a quantization-based simplification is used to preserve topology.

Name	Type	Description
tolerance	number	The tolerance distance for simplification.

Returns:

A new, simplified version of the original geometry.

transform(source, destination){this} inherited

geom/Geometry.js, line 306

Transform each coordinate of the geometry from one coordinate reference system to another. The geometry is modified in place. For example, a line will be transformed to a line and a circle to a circle. If you do not want the geometry modified in place, first clone() it and then use this function on the clone.

Name	Type	Description
source	ProjectionLike	The current projection. Can be a string identifier or a Projection object.
destination	ProjectionLike	The desired projection. Can be a string identifier or a Projection object.

Returns:

This geometry. Note that original geometry is modified in place.

un(type, listener) inherited

Observable.js, line 173

Unlisten for a certain type of event.

Name	Type	Description
type	string | Array.<string>	The event type or array of event types.
listener	function	The listener function.

unset(key, silent) inherited

Object.js, line 259

Unsets a property.

Name	Type	Description
key	string	Key name.
silent	boolean | undefined	Unset without triggering an event.