The Warp Tool provides a distortion function. Use it to create or alter an object's grid for Adobe Illustrator. There are three types of Warp:
Defining a source grid and destination grid are two requirements for using the Warp Tool. The source grid is always a rectangle. The destination grid is non-rectangular; commonly an arc or circular shape. Elements located on the source grid are moved to the corresponding point in the destination grid. The distortion created by the Warp tool is primarily a result of the shape of the destination grid.
The Warp Tool also includes features for adjusting grid and for creating a circular standard grid.