Patent ID: 8026920
Filing Date: 2011-09-27
Classification: G06F

Abstract:
1. A method for transforming coordinates of a hit event, the method comprising: providing a directed acyclic graph including a first effect and a last effect, an input, and an output, the first effect and the last effect each including a bi-directional transformation function F displaying a visual element on an area of a display; transforming the visual element by solving the bi-directional transformation function F transforming the first transformed visual element by solving the bi-directional transformation function F displaying the last-transformed visual element instead of the visual element on the display; receiving the coordinates of the hit event wherein the hit event indicates the displayed last-transformed visual element; transforming the coordinates by solving the bi-directional transformation function F transforming the last-transformed coordinates by solving the bi-directional transformation function F determining that the first-transformed coordinates identify a point in the area, wherein the method is performed by a computing device.