| 摘要 |
<p>PURPOSE:To specify effectively, the diameter of a hole pattern by putting a color mark, which specifies the diameter of the hole pattern on a drawing, on a transparent sheet provided on the drawing and detecting this color mark simultaneously with reading of the hole pattern. CONSTITUTION:A center point calculating logic circuit 146 calculates, XY coordinate values of the center point of the hole pattern on a basis of scanning data of a sense data register 140, a counted value of a counter 143, and a hole discrimination signal of a hole discriminating logic circuit 142. The transparent sheet is scanned by a color detecting device to detect the color of the color mark on the transparent sheet, and this detection signal is inputted to a computer. XY coordinate value data of the center point of the hole pattern is filed in a data file memory 154 of the computer on a basis of this color mark signal. The color out of hole pattern data is specified to output data of hole marks having the same diameter from the memory 154 collectively.</p> |
