Package com.luciad.view

Enum Class TLcdMapScale.ScaleLocation

java.lang.Object

java.lang.Enum<TLcdMapScale.ScaleLocation>

com.luciad.view.TLcdMapScale.ScaleLocation

All Implemented Interfaces:

Serializable, Comparable<TLcdMapScale.ScaleLocation>, Constable

Enclosing class:

TLcdMapScale

public static enum TLcdMapScale.ScaleLocation
extends Enum<TLcdMapScale.ScaleLocation>

Defines how a map scale is measured.

Since:

2021.0

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
MAP_CENTER	A map scale ratio at the center of the current view extents.
PROJECTION_CENTER	A map scale ratio at the origin of the projection.

Method Summary

Modifier and Type	Method	Description
static TLcdMapScale.ScaleLocation	valueOf(String name)	Returns the enum constant of this class with the specified name.
static TLcdMapScale.ScaleLocation[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

PROJECTION_CENTER

public static final TLcdMapScale.ScaleLocation PROJECTION_CENTER

A map scale ratio at the origin of the projection. The accuracy of this map scale depends on the distance (in meters) between the origin of the projection, and what is currently visible on screen. Typically, the larger the distance, the greater the distortion will be that is caused by the projection, and the less accurate the scale is.

If, for example, the projection is centered on Paris, the scale is calculated for Paris. Therefore, if the view is showing the US, the scale calculated by this method is potentially way off compared to what is visible on screen.

MAP_CENTER

public static final TLcdMapScale.ScaleLocation MAP_CENTER

A map scale ratio at the center of the current view extents. If the projection is centered on a spot far away of the current view extents, the scale calculated by this method is still accurate (it is measured horizontally). This does imply however that the map scale changes by simply panning the map around.

Method Details

values

public static TLcdMapScale.ScaleLocation[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static TLcdMapScale.ScaleLocation valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null