Oracle Maps HTML5 Javascript API Reference

Class: Universe

OM.universe. Universe

new Universe(config)

This class defines zoom levels, overall map bounds and spatial reference information
for the current mapping session. This contextual information is collectively called
a map Universe.
By default, a map universe is automatically derived from the tile layer
definition if there is one.

If the zoomLevels array is not specified, it will be automatically calculated
based on the following assumptions:


  • numberOfZoomLevel sis specified and used to generated the zoom levels

  • At zoom level 0, the full map extent is entirely contained in a single tile

Parameters:
Name Type Description
config Object

The config specifies the Universe parameters. It can have the following attributes:


  • srid {int} The map srid. Use an Oracle Spatial SRID value, e.g. 4326, 3785, 8307, 8265 etc.

  • bounds {OM.geometry.Rectangle} The map bounds.

  • zoomLevels {Array} An array of OM.universe.ZoomLevel. The map zoom level scheme.
  • numberOfZoomLevels {int} The number of map zoom levels.
Returns:

The newly created Universe object,
or null if an error occurred.

Type
OM.universe.Universe

Methods

getMapBounds()

Get the map bounds. That is, the maximum map extent of this universe.

Returns:

The maximum map extent of this universe.

Type
OM.geometry.Rectangle

getSRID()

Get the SRID for the map bounds.

Returns:

The SRID for the map bounds.

Type
int

getZoomLevelNumber()

Get the number of defined zoom levels.

Returns:

The number of zoom levels.

Type
int

getZoomLevels()

Get the map zoom level definitions array.

Returns:

An array of OM.universe.ZoomLevel.

Type
Array