Patent ID: 9253364
Filing Date: 2016-02-02
CPC Classification: G06F,G06T,H04N

Claim Text:
1. A display apparatus that displays a preview of print data, the display apparatus comprising: an input unit configured to receive input of a sheet handling method of a sheet on which the print data is printed from a user, the sheet handling method being specified based on a sheet holding position and a sheet bending operation to be performed from the sheet holding position on the sheet on which the print data is printed; a specifying unit configured to specify a combination of sheet forms representing a behavior of the sheet on which the print data is printed based on inputs of the hold position and the sheet bending operation; a generating unit configured to sequentially generate sheet forms constituting the combination specified by the specifying unit, and dynamically generate a three-dimensional image representing the behavior being a continuous change in a bending form of the sheet on which the print data is printed; a display unit configured to display, as a moving image, the three-dimensional image of the sheet in bending form that is dynamically generated, and a correction unit configured to correct a distortion due to texture mapping; wherein the sheet operation includes a bending operation in which the user holds one side of the sheet, lifts the sheet up and then snaps the sheet downward with a snap of the wrist, and the input unit reads out data of the light reflection intensity parameter and grayscale data from a storage unit, generates texture information based on intensity of light from a light source to the sheet and intensity of light reflected from the sheet according to sheet types and with reference to the read-out data of the light reflection intensity parameter and grayscale data, and adds the texture information to the three-dimensional image; wherein the generating unit generates the three-dimensional image by dynamically generating a chronological Bezier surface representing the sheet forms for each of the sheet forms contained in the specified combination; wherein the correction unit corrects the distortion by calculating a movement amount of a plurality of control points of the Bezier surface until a length of the Bezier surface is within a predetermined acceptable range.