edu.ucdavis.cstars.client.geometry

Class Point

java.lang.Object

com.google.gwt.core.client.JavaScriptObject

edu.ucdavis.cstars.client.geometry.Geometry

edu.ucdavis.cstars.client.geometry.Point

public class Point
extends Geometry

A location defined by an X- and Y- coordinate. It can be map units or screen units.

Author:

lsimone, Justin Merz

Nested Class Summary

Nested classes/interfaces inherited from class edu.ucdavis.cstars.client.geometry.Geometry

Geometry.GeometryType

Method Summary

Methods

Modifier and Type	Method and Description
static Point	create(double[] xy, SpatialReference sr) Creates a new Point object using an array containing an x,y coordinate value and a spatial reference.
static Point	create(double x, double y, SpatialReference sr) Creates a new Point object using x, y, and a spatial reference.
static Point	create(com.google.gwt.core.client.JavaScriptObject json) Creates a new Point object using a JSON object.
Point	getOffset(double dx, double dy) Offsets the point in an x and y direction.
double	getX() X-coordinate of a point in map units.
double	getY() Y-coordinate of a point in map units.
Point	setX(double x) Sets x-coordinate of point.
Point	setY(double y) Sets y-coordinate of point.
java.lang.String	toNiceString() Return the point as a formated string
Point	update(double dx, double dy) Updates a point.

Methods inherited from class edu.ucdavis.cstars.client.geometry.Geometry

fromJson, geographicToWebMercator, getExtentForScale, getJson, getJsonType, getLength, getLineIntersection, getScale, getSpatialReference, getType, isClockwise, setSpatialReference, toJson, toMapGeometry, toMapPoint, toScreenGeometry, toScreenPoint, webMercatorToGeographic

Methods inherited from class com.google.gwt.core.client.JavaScriptObject

cast, createArray, createArray, createFunction, createObject, equals, hashCode, toSource, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

create

public static Point create(double x,
           double y,
           SpatialReference sr)

Creates a new Point object using x, y, and a spatial reference.

Parameters:

x - - X-coordinate of a point in map units.

y - - Y-coordinate of a point in map units.

sr - - Spatial reference of the geometry.

Returns:

Point

create

public static Point create(double[] xy,
           SpatialReference sr)

Creates a new Point object using an array containing an x,y coordinate value and a spatial reference.

Parameters:

xy - - An array that includes an x,y coordinate.

sr - - Spatial reference of the geometry.

Returns:

Point

create

public static Point create(com.google.gwt.core.client.JavaScriptObject json)

Creates a new Point object using a JSON object.

Parameters:

json - - A JSON object that contains an x,y coordinate.

Returns:

Point

getX

public final double getX()

X-coordinate of a point in map units.

Returns:

double

getY

public final double getY()

Y-coordinate of a point in map units.

Returns:

double

getOffset

public final Point getOffset(double dx,
              double dy)

Offsets the point in an x and y direction. Units are map units.

Parameters:

dx - - Value for x-coordinate of point.

dy - - Value for y-coordinate of point.

Returns:

Point

setX

public final Point setX(double x)

Sets x-coordinate of point.

Parameters:

x - - Value for x-coordinate of point.

Returns:

Point

setY

public final Point setY(double y)

Sets y-coordinate of point.

Parameters:

y - - Value for y-coordinate of point.

Returns:

Point

update

public final Point update(double dx,
           double dy)

Updates a point.

Parameters:

dx - - X-coordinate of the updated point.

dy - - Y-coordinate of the updated point.

Returns:

Point

toNiceString

public final java.lang.String toNiceString()

Return the point as a formated string

Returns:

String