Properties

Type

Description

extent

sg.geometry.Extent

Geometry extent

parts

Array.<sg.geometry.Geometry>

Array of geometries

type

String

Geometry type

Methods

Type

Description

addPart(part)

sg.geometry.Geometry

add geometries to the collection

getExtent()

Returns:

sg.geometry.Extent

return geometry extent object

Returns:

update(updatePart)

None

whether to update other geometry parts

toWkt()

Returns:

String

convert to WKT string

Returns:

Contains(geom)        

sg.geometry.Geometry

return whether a geometry object is contained in a multi-polygon geometry object.

Returns:

getCentroid()        

Returns:

sg.geometry.Point

return the centroid of a multi-polygon geometry object

Returns:

getFirstPoint_        

Returns:

sg.geometry.Point

Get the first vertex of a multi-polygon geometry object

Returns:

Clone()

Returns:

sg.geometry.MultiPolygon

Copy the multi-polygon geomtery object

Returns:

forEachVertex(callback)        

function

Get each verttex of a mult-polygon

callback(context)

{

 //Vertex

 Context.point;

 //Vertex index

 Context.pointIndex;

}