摘要 |
PURPOSE: To provide a beautiful plotting result by making a crack generated at the connecting part of a curved line and a straight line or the curved line and another curved one min., regardless of line width, without remarkably increasing arithmetic processing quantity. CONSTITUTION: When the curved line is approximated to the minute length of straight line to carry out plotting through the use of a prescribed output method, the curved line 600 to be plotted is divided into prescribed plural number of minute straight lines and a position of respective segments (the segment of the minute straight line 601, the one of 602 and the one of 603 and 604) which includes plural minute straight lines to be plotted relative to the whole curved line is detected so that the minute straight lines (601-604) with length decided by a length control means is plotted in accordance with the segment position to be plotted and the line width of the curved lien to be plotted. |