Graphics Object Identification

Finding, copying, and deleting graphics objects

Functions

`gca`	Current axes or chart
`gcf`	Current figure handle
`gcbf`	Handle of figure containing object whose callback is executing
`gcbo`	Handle of object whose callback is executing
`gco`	Handle of current object
`groot`	Graphics root object

`ancestor`	Ancestor of graphics object
`allchild`	Find all children of specified objects
`findall`	Find all graphics objects
`findobj`	Locate graphics objects with specific properties
`findfigs`	Find visible offscreen figures

`gobjects`	Initialize array for graphics objects
`isgraphics`	True for valid graphics object handles
`ishandle`	Test for valid graphics or Java object handle