angular distortion

angular distortion

(1) The failure of a lens system to reproduce accurately, in image space, the angle subtended by two points in object space. (2) Distortion, in a map projection, because of non conformality. (3) The change in shape of a small circle on a sphere when it is transformed to a plane by a projection.

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Part of Speech: noun
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Industry/Domain: Earth science
Category: Mapping science
Company: American Congress on Surveying & Mapping
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Related terms

distortion

Economy; International trade

When prices and production are higher or lower than levels that would usually exist in a competitive market.

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Automotive; Automobile

A warpage, bendng, twisting, or change in form from the original shape.

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Engineering; Electronic engineering

1. Deformation of a signal waveform. 2. The additional deformation of a signal exhibiting a less-than-ideal waveshape when it passes through a circuit. Some distortion originates ...

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A change in scale from one part of an image to another.

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In a system or device, any departure of the output signal waveform from that which should result from the input signal waveform's being operated on by the system's specified, ...

subtropical

Earth science; Mapping science

Relating to the warmest region of the Temperate Zones that border on the Torrid Zone.

sky

Earth science; Mapping science

The region above and beyond the Earth, as it is seen looking up from the ground. Sky looks blue during the day and dark at night.

South Pole

Earth science; Mapping science

The most southern point of the Earth. The South Pole is the southern end of the axis on which the Earth rotates.

prime meridian

Earth science; Mapping science

The line of longitude that passes through the town of Greenwich, England, and that measures 0 degree. It is the line from which other longitude lines are measured.

planet

Earth science; Mapping science

A celestial body revolving around a sun in a nearly circular orbit. This definition excludes comets, which have highly elliptical orbits. However, it may also exclude some of ...

area of error

Earth science; Mapping science

A figure within which the true location of a point whose location has been determined by measurement is believed to lie, with stated degree of probability.

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