| 摘要 |
PROBLEM TO BE SOLVED: To reduce survey errors of photographic survey in the space in a room, etc. SOLUTION: A target for photographic survey is equipped with a support 12 in a rectangular parallelepiped shape, and the support 12 supports a plate member 20 in a triangular plate shape. On the top surface of the plate member 20, six reference point members 30 are provided. The plate member 20 is fitted rotatably to the support 12 with a hinge 22 and a clip 24 and a 1st lock plate 26 are engaged with each other to position the plate member 20 in a horizontal position. Or the plate member 20 is raised by 90 deg., and a lock projection 38 and a 2nd lock plate 28 are engaged with each other to position the plate member 20 in a vertical position.
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