Definitions for "Stereoplotter"
A machine which, when loaded with a pair of overlapping aerial photographs, can be used to determine precise location and altitudes of objects that appear in the photographs.
Instrument for plotting a map by observation of stereomodels formed by pairs of photographs.
A photogrammetric plotter with two or more projectors (multiplex) used to project a stereoscopic image (called a model) from aerial photograph transparencies (called diapositives). Measurements are then taken from the model and traced out (as contour lines) on a manuscript, thereby providing an accurate topographic representation of an area. A stereoplotter is also used to trace out roads and plot land marks and other cultural and physical features in their correct relative positions. (See contour lines, culture, photogrammetry and stereoplotting).