com.supermap.services.components.commontypes

Class Point2D

java.lang.Object

com.supermap.services.components.commontypes.Point2D

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

Point3D, PointEPS, PointWithMeasure

public class Point2D
extends java.lang.Object
implements java.io.Serializable

2D geographical coordinates.

The instance of the point class is the point object, which represents the point object with double precision coordinates, that is, the range of its coordinates is ±5.0*1e-324 to ±1.7* 1e308, and the effective bit is 15-16 bits.

Point object is the foundation of all kinds of geometric objects, such as the geometric objects are actually a string of Point2D point strings, and the geometric surface is a string of point string whose starting point and end point are the same, and therefore in describing the location and shape of the geometry object, point object is a very important role.

When creating a new instance of Point2D by using the default constructor, its x and y coordinates are the minimum values of the double data type; Users can also construct a new point object by using a given x, y coordinate and creating a copy of an existing point object.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
double	x The X coordinate of the Point2D.
double	y The Y coordinate of the Point2D.

Constructor Summary

Constructors

Constructor and Description
Point2D() ${services_components_commontypes_Point2D_constructorByDefault_Title}
Point2D(double x, double y) ${services_components_commontypes_Point2D_constructorByX_Title}
Point2D(Point2D point2D) ${services_components_commontypes_Point2D_constructorByPoint2D_Title}

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj) ${services_components_commontypes_Point2D_method_equals_Title}
int	hashCode() ${services_components_commontypes_Point2D_method_hashCode_Title}
void	offset(double offsetX, double offsetY) ${services_components_commontypes_Point2D_method_offset_Title}
java.lang.String	toString() ${services_components_commontypes_Point2D_method_toString_Title}

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

x

public double x

The X coordinate of the Point2D.

y

public double y

The Y coordinate of the Point2D.

Constructor Detail

Point2D

public Point2D()

${services_components_commontypes_Point2D_constructorByDefault_Title}

${services_components_commontypes_Point2D_constructorByDefault_Description}

Point2D

public Point2D(double x,
       double y)

${services_components_commontypes_Point2D_constructorByX_Title}

${services_components_commontypes_Point2D_constructorByX_Description}

Parameters:

x - ${services_components_commontypes_Point2D_constructorByX_param_x}

y - ${services_components_commontypes_Point2D_constructorByX_param_y}

Point2D

public Point2D(Point2D point2D)

${services_components_commontypes_Point2D_constructorByPoint2D_Title}

${services_components_commontypes_Point2D_constructorByPoint2D_Description}

Parameters:

point2D - ${services_components_commontypes_Point2D_constructorByPoint2D_param_point2D}

Throws:

java.lang.IllegalArgumentException - ${services_components_commontypes_Point2D_constructorByPoint2D_exception_IllegalArgumentException}

Method Detail

equals

public boolean equals(java.lang.Object obj)

${services_components_commontypes_Point2D_method_equals_Title}

${services_components_commontypes_Point2D_method_equals_Description}

Overrides:

equals in class java.lang.Object

Parameters:

obj - ${services_components_commontypes_Point2D_method_equals_param_obj}

Returns:

${services_components_commontypes_Point2D_method_equals_return}

hashCode

public int hashCode()

${services_components_commontypes_Point2D_method_hashCode_Title}

${services_components_commontypes_Point2D_method_hashCode_Description}

Overrides:

hashCode in class java.lang.Object

Returns:

${services_components_commontypes_Point2D_method_hashCode_return}

toString

public java.lang.String toString()

${services_components_commontypes_Point2D_method_toString_Title}

${services_components_commontypes_Point2D_method_toString_Description}

Overrides:

toString in class java.lang.Object

Returns:

${services_components_commontypes_Point2D_method_toString_return}

offset

public void offset(double offsetX,
          double offsetY)

${services_components_commontypes_Point2D_method_offset_Title}

${services_components_commontypes_Point2D_method_offset_Description}

Parameters:

offsetX - ${services_components_commontypes_Point2D_method_offset_param_offsetX}

offsetY - ${services_components_commontypes_Point2D_method_offset_param_offsetY}