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Floating Radius Calculator
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center of the circle which passes through these points. Stated differently, one obtains

the radius and center of the circle that circumscribes the spherical triangle defined by the

three points. Those interested in the actual algorithm may wish to View the Source Code. In the context of county highpointing this type of calculation corresponds to finding a

"floating glob radius" - the largest circle that fits entirely inside a glob of contiguous counties. The three points must be carefully chosen such that the resulting circle does not

contain any unclimbed county, or portion thereof, that lies in the circle's interior.

Some trial and error may be needed. However it will almost certainly be the case

that at most several points need be tested. Note: To find if a fourth glob-limiting point lies within the computed circle,

use the distance calculator to find the distance from the point to the computed center.

If this distance is less than the computed radius then the chosen triple of points

do not serve to define the floating glob radius ... and another triple must be sought

to that end. In general you should be careful to select at least one of the three points to lie

across the glob from at least one of the remaining two points. If this is not done

the resulting circle may not be confined to the glob's interior. This is a case

of GIGO:

(integer) degrees plus (integer) minutes plus seconds. The degree symbol (°)

may serve to separate the degree from arcminute values. The arcminute symbol (')

may serve to separate the arcminute from arcsecond values. The arcsecond symbol (")

may be placed after the arcsecond value. As an alternative to these standard symbols, the colon symbol (:) may serve as a separator

between degree, arcminute and arcsecond values as deg : min : sec . The colon symbol (:)

and degree symbol (°) cannot be simultaneously present in-between the degree and

arcminute fields. The colon symbol and arcminute symbol (') cannot be simultanesouly

present in-between the arcminute and arcsecond fields: (N 45 : 23 ' 50.2 ") is allowed

whereas (N 45 : 23 :' 50.2) is not. Whitespace is ignored throughout such that you may space input fields at you please. To specify hemispheres either use a "-" sign for South and West

(case insensitive) either in front of

North and East are signified by either specifying nothing; a "+" sign in front of the

degree through arcsecond values; or by "N" or "E" (case insensitive) either before

after the degree through arcsecond values.