SuperGIS Server JavaScript API Reference > sg/geometry > Extent

new sg.geometry.Extent(xmin, ymin, xmax, ymax)

Description

create a extent geometry.

Position

Geometry.js

Parameters

Parameter	Type	Description
xmin	Number	Minimum x value
ymin	Number	Minimum y value
xmax	Number	Maximum x value
ymax	Number	Maximum y value

Properties

Properties	Type	Description
extent	sg.geometry.Extent	Geometry extent
type	String	Geometry type
xmin	Number	Minimum x value
ymin	Number	Minimum y value
xmax	Number	Maximum x value
ymax	Number	Maximum y value

Methods

Return type

Description

getCenter()

Returns: sg.geometry.Point

return geometry center

Returns:

Type	Description
sg.geomtry.Point	geometry center

getExtent()

Returns: sg.geometry.Extent

return geometry extent

Returns:

Type	Description
sg.geomtry.Extent	geometry extent

getHeight()

Returns: Number

return geometry height

Returns:

Type	Description
Number	geometry height

getWidth()

Returns: Number

return geometry width

Returns:

Type	Description
Number	geometry width

toWkt()

Returns: sg.geometry.Point

return WKT string

Returns:

Type	Description
Number	WKT string

union(p)

p:sg.geometry.Extent

Returns: sg.geometry.Extent

expand the extent to contain the specified extent.

Returns:

Name	Type	Description
p	sg.geometry.Extent	The minx, miny, maxx, and maxy bounding box.

Example

var xmin = 1041530;

var ymin = 5146056;

var xmax = 1774538;

var ymax = 5663128;

var extent = new sg.geometry.Extent(xmin, ymin, xmax, ymax);

See live demo