editViewport  Modify a Viewport 
 Description
This is a convenience function for producing a new viewport from a copy of an existing viewport (by default the current viewport), with specified modifications.
Usage
editViewport(vp=current.viewport(), ...)
Arguments
| vp | A viewport object. | 
| ... |  Modification of the viewport (should all be valid arguments to the  | 
Value
A grid viewport object.
Author(s)
Paul Murrell
See Also
    Copyright (©) 1999–2012 R Foundation for Statistical Computing.
Licensed under the GNU General Public License.