A plane table is a device used in surveying and related disciplines to provide a solid and level surface on which to make field drawings, charts and maps.
USES:
In use, a plane table is set over a point and brought to precise horizontal level. A drawing sheet is attached to the surface and an alidade is used to sight objects of interest. The alidade, in modern examples of the instrument a rule with a telescopic sight, can then be used to construct a line on the drawing that is in the direction of the object of interest.
METHOD OF USING:
1. Radiation Method
2. Intersection Method
2. Intersection Method
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