Get Started For Free Get Started For Free

Maps API for JavaScript

China specific
Maps API for JavaScript Developer's Guide

H.math.Rect

Class Summary

This class defines a rectangle in two-dimensional geometric space. It is used to represent the area in projected space.

[ For full details, see the Class Details ]

Method Summary

Table 1. Methods
Methods

set (left, top, right, bottom)

This method sets the values of the edges of the rectangle.

getTopLeft () : {H.math.Point}

This method retrieves the top-left vertex of the rectangle.

getBottomRight () : {H.math.Point}

This method retrieves the bottom-right vertex of the rectangle.

containsXY (x, y) : {boolean}

This method checks if the provided coordinates lie within the rectangle.

static fromPoints (topLeft, bottomRight) : {H.math.Rect}

This method creates a rectangle from a top-left and bottom-right point pair.

clone () : {H.math.Rect}

This method clones the given rectangle.

Class Description

This class defines a rectangle in two-dimensional geometric space. It is used to represent the area in projected space.

Constructor Details

H.math.Rect(left, top, right, bottom)

Parameters:
 
left:
{number}
 
An x-value indicating the left edge of the rectangle
top:
{number}
 
A y-value indicating the top edge of the rectangle
right:
{number}
 
An x-value indicating the right edge of the rectangle
bottom:
{number}
 
A y-value indicating the bottom edge of the rectangle

Method Details

set (left, top, right, bottom)

This method sets the values of the edges of the rectangle.

Parameters:
 
left:
{number}
 
An x-value indicating the left edge of the rectangle
top:
{number}
 
A y-value indicating the top edge of the rectangle
right:
{number}
 
An x-value indicating the right edge of the rectangle
bottom:
{number}
 
A y-value indicating the bottom edge of the rectangle

getTopLeft () : {H.math.Point}

This method retrieves the top-left vertex of the rectangle.

Returns:
 
{H.math.Point}
An object containing the screen coordinates of the top-left vertex of the rectangle

getBottomRight () : {H.math.Point}

This method retrieves the bottom-right vertex of the rectangle.

Returns:
 
{H.math.Point}
An object containing the screen coordinates of the bottom-right vertex of the rectangle

containsXY (x, y) : {boolean}

This method checks if the provided coordinates lie within the rectangle.

Parameters:
 
x:
{number}
 
The value of the x-coordinate to check
y:
{number}
 
The value of the y-coordinate to check
Returns:
 
{boolean}
true if the coordinates lie within the rectangle, false if the parameters are isNaN

static fromPoints (topLeft, bottomRight) : {H.math.Rect}

This method creates a rectangle from a top-left and bottom-right point pair.

Parameters:
 
topLeft:
{H.math.IPoint}
 
The top-left vertex of the rectangle
bottomRight:
{H.math.IPoint}
 
The bottom-right vertex of the rectangle
Returns:
 
{H.math.Rect}
The rectangular area defined by its top-left and bottom-right vertices

clone () : {H.math.Rect}

This method clones the given rectangle.

Returns:
 
{H.math.Rect}
An object representing the newly clone rectangle