20 Terms
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Mapping science
The systemic study of the processes and designs involved with map making.
Industry: Earth science
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Mapping science
Compound curve
Earth science; Mapping science
A curve composed of two or more simple curves which deflect in the same direction and are tangent at the points where they join.
Local datum
Earth science; Mapping science
A datum defining a coordinate system which is used only over a region of very limited extent.
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Earth science; Mapping science
To extend a curve beyond its end point, in the same direction.
Cucunutti method of resection
Earth science; Mapping science
A method of resection in which lines A,B,C are drawn through the plotted and observed points, on a plane table, to give intersections 1 of A with B and 2 of B with C. The hori-zontal motion of the ...
Contrast index
Earth science; Mapping science
A number expressing the average gradient of a graph of photographic density versus exposure in terms of the slope of a straight line joining the two points, on the characteristic curve, which ...
Constellation
Earth science; Mapping science
(1) A precisely defined region of the celestial sphere, associated with a stellar grouping, which the International Astronomical Union has designated as a constellation. (2) A stellar group, ...
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