Construct · 1 fields · 1 citations

meridian: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone construct Nearest construct by meaning·not indexed
meridian1 CONSTRUCTMeridian (curve)DO CARMO · SURFACE OF REVOLUTION

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Differential geometry

A profile curve on a surface of revolution

In differential geometry a meridian is one of the generating curves of a surface of revolution: take a plane curve and spin it about an axis, and each position of that curve on the resulting surface is a meridian, crossing the circular parallels at right angles. do Carmo's Differential geometry of curves and surfaces uses meridians and parallels as the natural coordinate curves on such a surface. The referent is a profile curve on a surface of revolution, a construct of pure geometry, unrelated to a circle on the sky or a channel in the body.[1]

Unit
A generating profile curve running pole-to-pole on a surface of revolution
Recovery means
Not applicable
Measured by
Defined as the intersection of the surface with a half-plane through its axis of revolution

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Nearby constructs

astigmatism2 fields · 2 citationsinvariant · one construct, two systemsaxis1 fields · 1 citationsanchor · a standalone constructazimuth4 fields · 5 citationsjingle · one word, four reference directions

References

  1. do Carmo, M. P. (1976). Differential geometry of curves and surfaces. Prentice-Hall. ISBN 9780132125895

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