Picture image producing apparatus

Details Picture image producing apparatus Picture image producing apparatus

1981-06-18

1984-07-10

Gruber, Felix D.

Boots, shoes, and leggings

364520, G06F 313, G06F 3153, G06F 1520

Patent

active

044596766

ABSTRACT:
A picture image producing apparatus has a control unit for designating picture image calculation, a display unit for displaying a picture image, and a processing unit for storing standard information used in the picture image calculation. The standard information is x-coordinate data and y-coordinate data of the picture image to be displayed. A first calculator computes a first group information of the picture image, in response to vary the x-coordinate data of the standard information. A second calculation computes second group information of the picture image in response to the varying y-coordinate data of the standard information. The picture image information of the first and second group information is transferred to the display unit.

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Kulpa: On the Properties of Discrete Circles, Rings, and Disks, Computer Graphics and Image Processing, vol. 10, No. 4, Aug. 1979, pp. 348-365.
Doros: Algorithms for Generation of Discrete Circles, Rings, and Disks, Computer Graphics and Image Processing, vol. 10, No. 4, Aug. 1979, pp. 366-371.
Bresenham: A Linear Algorithm for Incremental Digital Display of Circular Arcs. Communications of the A C M, vol. 20, No. 2, Feb. 1977, pp. 100-106.
Pitteway: Algorithm for Drawing Ellipses or Hyperbolae with a Digital Plotter. The Computer Journal, vol. 10, No. 3, Nov. 1967, (British Computer Society-London), pp. 282-289.
Jordan et al.: An Improved Algorithm for the Generation of Nonparametric Curves. IEEE-Transactions on Computers, vol. C-22, No. 12, Dec. 1973, pp. 1052-1060.

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