| 摘要 |
PURPOSE:To prevent the loss of a contour line to accurately paint out a character by temporarily reading out the logical value of a peculiar point in a peculiar storage means and writing the opposite logical value again and scanning peculiar point data in each row to perform the painting-out processing. CONSTITUTION:An X coordinate 401 and a Y coordinate 402 of a character or a graphic are stored in an X1 latch 405 and a Y1 latch 406 respectively by a strobe signal 403 and are shifted to an X2 latch 407 and a Y2 latch 408 at the time of input of next coordinates. This coordinates data is stored in a contour line recording means MA 415, and it is stored in a peculiar point storage means MB 416 also when coordinates indicate a peculiar point. The logical value of bits stored in the means MB 416 is temporarily read out and it opposite logical value is written again by a substituting means 418. Peculiar point data stored in the means MB 416 is scanned from smallest coordinates with a row as the unit by the means 418, and picture elements between an odd-numbered picture element of '1' and the next picture element of '1' are substituted with '1', and OR between data obtained by the means 418 and contour line data of the means 415 is operated in a means 419 to obtain a final character. |
