Use to use RescaleWithCentre method

Hello Sir,

I want to know, what is the use of RescaleWithCentre method of GraphView and how to use this method send a sample its very urgent.

From the User Guide section on Scaling and Coordinate Systems:

The RescaleWithCenter method changes the DocScale and tries to keep the view centered about a given document point.
and from the Reference Manual:
Change the DocScale, and adjust the DocPosition so that the docPt remains at the center of the view.
The given docPt may not actually remain at the center of the view if the LimitDocPosition method limits where the view can be scrolled to.