| 摘要 |
PURPOSE:To speed up the input of attachment data by calculating the attachment angle of an electronic parts from the center coordinates serving as the attachment coordinates of the parts and the middle point coordinates obtained from the center coordinates and the both-end coordinates of the side showing the parts attachment direction. CONSTITUTION:A cursor 2 of a digitizer 1 is moved to the center point A of an electronic parts 9 and the center coordinates (x0, y0) of the parts 9 are inputted with operation of a switch. The coordinates (x0, y0) serve as the attachment coordinates of the parts 9 since the scale matching is previously carried out between a substrate drawing and a packaging substrate. Then the cursor 2 is moved to both ends B and C of a side 10 showing the attachment direction (polarity, etc.) of the parts 9, and the coordinates of both ends B and C are inputted. When the coordinates of points A - C are inputted, an arithmetic processor 6 calculates the coordinates (x1, y1) of a middle point D of the side 10 from the coordinates of both ends B and C of the side 10. Then the processor 6 calculates the tilt of a segment connecting both points A and D against an axis X from both coordinates (x0, y0) and (x1, y1). Thus the attachment data on the parts 9 can be inputted at high speed. |
