At the scope high-speed drawing device and its drawing treatment

摘要

PROBLEM TO BE SOLVED: To provide a screen high speed drawing device and a drawing processing method thereof with which image data of dashed lines is generated with a small amount of calculation at high speed in screen drawing of dashed lines.;SOLUTION: This invention provides the screen high speed drawing device which displays the dashed lines constituted by repetition of a solid line part R where lines are drawn and a blank part B where no line is drawn on an XY plane to be specified by X and Y axes on a display part 40 and has an input part 10 in which coordinate data of the dashed lines is inputted, an arithmetic processing part 202 which performs mask processing for masking segment shown in the coordinate data with prescribed width and at a prescribed space about a prescribed direction by differentiating the directions for masking according to inclinations of the segments shown in the coordinate data, creates, outputs drawing data making the part to which the mask processing is performed as the blank part and the output part 40 which displays the dashed lines on the display part based on the drawing data and the drawing processing method thereof.;COPYRIGHT: (C)2007,JPO&INPIT