| 摘要 |
<p>PURPOSE:To intuitively input three-dimensional position information by detecting the length of a string extending from a measuring point to an instruction means. CONSTITUTION:An instruction part 10 is arranged at an instruction point P that is a point to which the position information of three-dimensional space is inputted. The measuring points M1, M2, and H3 at three positions not on the same straight line are coupled with the instruction part 10 with plural strings S1, S2, and S3, respectively without generating relaxation. Take-up parts 11, 12, and 13 detects distances between the measuring points M1, M2, and M3 and the instruction point P by detecting draw-out length of the strings S1, S2, and S3 from the measuring points M1, M2, and M3 to the instruction point P. An arithmetic unit 15 computes the position information in the three- dimensional space of the instruction point P based on calculated distance. In this way, the three-dimensional position information can be intuitively inputted.</p> |
