com.esri.adf.web.util
Class MeasureUtil

java.lang.Object
  com.esri.adf.web.util.MeasureUtil

public class MeasureUtil
extends Object

Field Summary

static int	U_A
static int	U_FT
static int	U_KM
static int	U_M
static int	U_MI

Constructor Summary

MeasureUtil()

Method Summary

static double	calculateDistance(WebPoint wpt1, WebPoint wpt2, WebSpatialReference wRef) Calculates the map distance between the given 2 points in meters.
static double	convertAreaUnits(double area, int fromUnits, int toUnits)
static double	convertUnits(double distance, int fromUnits, int toUnits)
static double[]	getArea(WebPolygon wPolygon, WebSpatialReference wRef) Gets area (in sq meters) and perimeter of the given polygon.
static double	getDistance(WebPolyline wLine, WebSpatialReference wRef) Gets distance in meters
static String	getUnitsLabel(int units)
static boolean	isProjected(WebSpatialReference wRef) Returns true if the spatial reference system is projected.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

U_M

public static final int U_M

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Constant Field Values

U_KM

public static final int U_KM

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Constant Field Values

U_FT

public static final int U_FT

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Constant Field Values

U_MI

public static final int U_MI

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Constant Field Values

U_A

public static final int U_A

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Constant Field Values

Constructor Detail

MeasureUtil

public MeasureUtil()

Method Detail

getDistance

public static double getDistance(WebPolyline wLine,
                                 WebSpatialReference wRef)

Gets distance in meters

Parameters:

wLine -

wRef -

calculateDistance

public static double calculateDistance(WebPoint wpt1,
                                       WebPoint wpt2,
                                       WebSpatialReference wRef)

Calculates the map distance between the given 2 points in meters. The distance will be calculated alone Equator for GCS, and the distance on latitude will be ignored.

Parameters:

wpt1 - the first point.

wpt2 - the second point.

wRef - the reference of the point

Returns:

the distance in meters

isProjected

public static boolean isProjected(WebSpatialReference wRef)

Returns true if the spatial reference system is projected.

Parameters:

wRef -

getArea

public static double[] getArea(WebPolygon wPolygon,
                               WebSpatialReference wRef)

Gets area (in sq meters) and perimeter of the given polygon. The returned double array contains 2 elements: double[0] is area, double[1] is perimeter.

Parameters:

wPolygon -

wRef -

Returns:

area and perimeter.

convertUnits

public static double convertUnits(double distance,
                                  int fromUnits,
                                  int toUnits)

convertAreaUnits

public static double convertAreaUnits(double area,
                                      int fromUnits,
                                      int toUnits)

getUnitsLabel

public static String getUnitsLabel(int units)