org.geotoolkit.image.io.mosaic
Enum TileLayout

Object
  Enum<TileLayout>
      TileLayout

All Implemented Interfaces:

Serializable, Comparable<TileLayout>

public enum TileLayout
extends Enum<TileLayout>

The layout of tiles in a TileManager. This is an enumeration that specify how MosaicBuilder should lay out the new tiles relative to each other. For example if the pixels in an image overview cover a geographic area 2 time larger (in width and height) than the pixels in an original image, then we have a choice:

• The overview image as a whole covers the same geographic area than the original image, in which case the overview has 2×2 less pixels than the original image (CONSTANT_GEOGRAPHIC_AREA).
• The overview image has the same amount of pixels than the original image, in which case the image as a whole covers a geographic area 2×2 bigger than the original image (CONSTANT_TILE_SIZE).

Since:

2.5

Version:

3.00

Author:

Martin Desruisseaux (Geomatys)

See Also:

MosaicBuilder

Module:

coverage/geotk-coverageio (download)

View source code for this class

Enum Constant Summary

CONSTANT_GEOGRAPHIC_AREA
All tiles cover the same geographic area.

CONSTANT_TILE_SIZE
All tiles have the same width and height in pixels.

GENERIC
A generic layout with heteregenous tile size or geographic area.

Method Summary

static TileLayout	valueOf(String name) Returns the enum constant of this type with the specified name.
static TileLayout[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

GENERIC

public static final TileLayout GENERIC

A generic layout with heteregenous tile size or geographic area. This enum is returned when no other enum fit.

CONSTANT_TILE_SIZE

public static final TileLayout CONSTANT_TILE_SIZE

All tiles have the same width and height in pixels. Consequently the levels at the finest resolution have more tiles than levels at lower resolution. In other words, the tiles at the finest resolution cover smaller geographic area. This is the most efficient tile layout.

CONSTANT_GEOGRAPHIC_AREA

public static final TileLayout CONSTANT_GEOGRAPHIC_AREA

All tiles cover the same geographic area. Consequently, tiles at the finest resolution may be very big while tiles at lower resolutions are smaller. This is the simplest tile layout, easy to manage but inefficient. It is provided for testing purpose and compatibility with some external softwares using such layout.

Method Detail

values

public static TileLayout[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (TileLayout c : TileLayout.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static TileLayout valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null