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
Distance angle
Earth science; Mapping science
An angle, in a triangle, opposite a side used as a base in the solution of the triangulation equations, or a side whose length is to be computed. In a chain of single triangles, two sides in each ...
Tangential distortion
Earth science; Mapping science
The change in scale, in an image, in a direction tangent to a circle about the optical axis (i.e., perpendicular to the radial direction).
Dirac function
Earth science; Mapping science
(1) The function δ (x - x o ), which has the value 0 for all values of x other than x o and has the value 1 at x o . (2) The function δ(x - x o ) such that
Octal digit
Earth science; Mapping science
A digit which is a member of the set of eight digits 0,1,2,3,4,5,6,7 used in the number system having the radix 8.
Electrical distance
Earth science; Mapping science
Length measured in terms of the distance travelled by radio waves in unit time.
Relative distance
Earth science; Mapping science
Distance from a specified point which is, usually, in motion.
Magnetic direction
Earth science; Mapping science
Horizontal direction expressed as an angle from magnetic north.
