Graphical user interface for changing parameters

摘要

A computer program product and method for changing the value of a parameter within a computer program is disclosed. The computer program provides a single graphical control for user selection and adjustment of a plurality of parameters wherein each parameter is controlled based upon movement of a user input device. At least one of the parameters is adjusted using a non-linear equation. When the user input device is moved within a first region from a defined reference point, the parameter value is not incremented. When the user input device enters a second region the parameter value is incremented at a first rate. As the user input device is moved into a third region the parameter value is incremented at a second rate that is greater than the first rate.