Class: Rectangle

SuperMap.Geometry.Rectangle

The Rectangle class.

new SuperMap.Geometry.Rectangle(x, y, width, height)

Rectangle.js, line 5
Name Type Description
x float

The X coordinate of the lower-left point of rectangle.
y float

The Y coordinate of the lower-left point of rectangle.
width float

The width of the rectangle.
height float

The height of the rectangle.
Example
//x is the X coordinate of the lower-left point of rectangle.y is the Y coordinate of the lower-left point of rectangle. w is the rectangle width; h is the rectangle height.
 var x = 1;
 var y = 2;
 var w = 10;
 var h = 20;
 var recttangle = new SuperMap.Geometry.Rectangle(x, y, w, h);

Extends

Members

boundsSuperMap.Bounds

Bounds of the geometric object.

heightfloat

The height of the rectangle.

idstring

The unique identifier of the geometric object.

parentSuperMap.Geometry

This is set when a Geometry is added as component of another geometry

SRIDinterger

Projection coordinate parameter. By this parameter, server will determine whether the geometry object's coordinate reference is as the same as dataset, if not, then change projection before adding into database.

Example
var geometry= new SuperMap.Geometry();
  geometry. SRID=4326;

widthfloat

The width of the rectangle.

xfloat

The X coordinate of the lower-left point of rectangle.

yfloat

The Y coordinate of the lower-left point of rectangle.

Methods

calculateBounds()

Rectangle.js, line 55

Calculate the bounds of the rectangle object.

inherited clearBounds()

Geometry.js, line 82

clear bounds of the geometric object. If the object has a parent class, it also clears the bounds of the parent class geometry object.

inherited clone(){SuperMap.Geometry}

Geometry.js, line 60

Creates cloned geometric graphics. Non-standard properties should not be set for cloned geometric graphics.

Returns:
Type Description
SuperMap.Geometry Clones a geometric figure.

inherited destroy()

Geometry.js, line 49

Deconstruct the Geometry class and release the resources.

inherited extendBounds(newBounds)

Geometry.js, line 95

Extend the existing bounds to include the new bounds. If geometry's bounds is not yet set, then set a new Bounds.

Name Type Description
newBounds SuperMap.Bounds

New bounds.

getArea(){float}

Rectangle.js, line 66

Get the area of rectangle.

Returns:
Type Description
float the area of rectangle.

inherited getBounds(){SuperMap.Bounds}

Geometry.js, line 112

Gets the boundary of the geometric graphic. If not set, it can be acquired through computing.

Returns:
Type Description
SuperMap.Bounds Returns the bounds of the geometry.

inherited getVertices(nodes){Array}

Geometry.js, line 135

Returns the list of all vertices of the geometric graphic. (This method needs to be realized in the subclass).

Name Type Description
nodes boolean optional

If true, only returns the end point of a line; if false, only returns the vertex; and default is to return the vertex.
Returns:
Type Description
Array A list of all vertices in the geometry.

inherited setBounds(bounds)

Geometry.js, line 70

Set bounds of the geometric object.

Name Type Description
bounds SuperMap.Bounds

bounds.