Patent ID: 6798425
Filing Date: 2004-09-28
Classification: G06T

Abstract:
A method of detecting a three-dimensional graphic which has a specific positional relationship with a predetermined point, comprising:assigning first identification information to each of one or more three-dimensional graphics, said first identification information identifying respective ones of said three-dimensional graphics; projecting at least one of said three-dimensional graphics onto a predetermined plane to produce a corresponding two-dimensional image; assigning second identification information to each of said corresponding two-dimensional images, said second identification information corresponding to said first identification information; detecting said second identification information assigned to a specified two-dimensional image when a predetermined point in said predetermined plane is located in said specified two-dimensional image; using said detected second identification information, identifying one of said three-dimensional graphics corresponding to said specified two-dimensional image, said one three-dimensional graphic having a specific positional relationship with said predetermined point.