Class: MapContext

OM. MapContext


new MapContext()

Use OM.Map.getMapContext() to get the map context instance to invoke its methods.

This is a convenience class which contains the essential contextual information related to the
current map instance, such as universe, current center point and zoom level
etc.

Note that instances of this class are always automatically constructed
and stored as a field of a OM.Map instance for easy access in an
event listener or map decoration.

Methods


getCenterPoint()

Returns:

The current center point.

Type
OM.geometry.Point

getDeviceHeight()

Returns:

height The device height

Type
Number

getDeviceWidth()

Returns:

width The device width

Type
Number

getDeviceWindow()

Returns:

The device window

Type
Object

getPreviousCenterPoint()

Returns:

The previous center point.

Type
OM.geometry.Point

getPreviousZoomLevel;()

Returns:

The previous zoom level.

Type
Number

getQueryWindow()

Returns:

queryWindow The query window

Type
OM.geometry.Rectangle

getUniverse()

Returns:

The universe currently in use.

Type
OM.universe.Universe

getZoomLevel()

Returns:

The current zoom level.

Type
Number