com.luciad.view.lightspeed.controller.ruler

LuciadLightspeedEnum TLspRulerController.MeasureMode

java.lang.Object

java.lang.Enum<TLspRulerController.MeasureMode>

com.luciad.view.lightspeed.controller.ruler.TLspRulerController.MeasureMode

All Implemented Interfaces:

Serializable, Comparable<TLspRulerController.MeasureMode>

Enclosing class:

TLspRulerController

public static enum TLspRulerController.MeasureMode
extends Enum<TLspRulerController.MeasureMode>

Enumeration that describes how the distances and azimuths are calculated. Switching between measure modes also changes the shape of the polylines.

Since:

2012.0

See Also:

TLspRulerController.setMeasureMode(MeasureMode)

Enum Constant Summary

Enum Constants

Enum Constant and Description
MEASURE_CARTESIAN The controller measures the Cartesian distance between points in the world reference of the view.
MEASURE_GEODETIC The controller measures the geodesic (shortest) distance between points.
MEASURE_RHUMB The controller measures the shortest rhumbline distance between points.

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

MEASURE_GEODETIC

public static final TLspRulerController.MeasureMode MEASURE_GEODETIC

The controller measures the geodesic (shortest) distance between points.

A geodesic distance is measured ``as the crow flies''. It is the shortest distance between two points, taken the curvature of the Earth into account. It is also known as a great-circle distance.

The measurements are defined in a default geodetic reference.

MEASURE_RHUMB

public static final TLspRulerController.MeasureMode MEASURE_RHUMB

The controller measures the shortest rhumbline distance between points. A rhumbline distance measurement maintains a constant compass bearing or heading. The azimuth is set to that heading.

Rhumblines are for example used to plan airplane flights or boat voyages.

The measurements are defined in a default geodetic reference.

MEASURE_CARTESIAN

public static final TLspRulerController.MeasureMode MEASURE_CARTESIAN

The controller measures the Cartesian distance between points in the world reference of the view. A Cartesian distance measurement disregards the curvature of the Earth, and is similar to using an actual ruler or a laser measurement device.

This mode is especially useful in a 3D geocentric reference, where it can be used to evaluate straight line distances between points on the terrain. In 2D, this mode is of limited use, because most projections severely distort those distances

This mode is typically used for measuring smaller-scale objects like trees and buildings.

Method Detail

values

public static TLspRulerController.MeasureMode[] 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 (TLspRulerController.MeasureMode c : TLspRulerController.MeasureMode.values())
    System.out.println(c);

Returns:

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

valueOf

public static TLspRulerController.MeasureMode 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