PRIORITY ORDER DECIDING METHOD AND ITS CIRCUIT FOR GENERATION OF SIMULATED VISUAL RANGE

摘要

PURPOSE:To realize the priority processing with high performance and at the low cost by comparing the position of a designated visual pint with a virtual plane to decide the priority order among areas. CONSTITUTION:A divided plane arithmetic part 11 calculates a virtual plane from the information on a visual object of a computer. A comparison means 12 compares the projection coordinates on a visual XY plane with the virtual plane and decides the side of the virtual plane where a designated visual point exists. The 1st and 2nd encoders 13 and 14 serving as the 1st and 2nd priority order deciding means supply the signals F0-F9 and F10-F19 of plural ones of the component faces of the visual object and then delivers the signal that displays the part closest to the visual point based on the prescribed priority order. A priority order selection means 15 supplies the output of the means 12 and those signals F0-F19 on the display surface of the visual object and suppresses the output of the priority order deciding means (encoder) set at the opposite side when the signal of the face of the visual object is supplied to the area where the visual point exists.