Hi:

It seems everything to be correct, but if it is also for automation, I
would suggest making explicit the coordinates (latitude 0 and longitude 0)
of ORIGIN (that it is Greenwich), because it may change, depending on the
period and location.

Happy New Year, 2022,  to all!

Lucia Lovison

On Mon, Dec 27, 2021 at 8:31 AM LOUISE RATLIFF <[log in to unmask]> wrote:

> Hello all,
> Here is the documentation on the Marc *034* field for the coordinates.
> They seem to all use leading zeroes so that there is a consistency in the
> number of digits used for all of the W, E, S, N values. This is no doubt
> for ease of machine manipulation.
>
> But I do remember when I input the *255 values*, I did not always include
> leading zeroes; I made sure that all of the values had the same number of
> digits, though.
>
> So I think I agree with Tim.
>
> Cheers, and Happy New Year!
>
> Louise Ratliff
> Retired UCLA map cataloger
>
> *$g - Coordinates - southernmost latitude*
>
> Subfields $d, $e, $f, and $g individually identify the four coordinates of
> the item. Subfield $d represents the westernmost extent of the item;
> subfield $e, the easternmost extent; subfield $f, the northernmost extent;
> and subfield $g, the southernmost extent. The abbreviations for the
> hemispheres are: *N = North, S = South, E = East, W = West*.
>
> Subfields $d, $e, $f, and $g always appear together. The coordinates may
> be recorded in the form *hdddmmss* (hemisphere-degrees-minutes-seconds),
> however, other forms are also allowed, such as decimal degrees. The
> subelements are each right justified and unused positions contain zeros.
>
> Examples in *degrees/minutes/seconds*: *hdddmmss*
>  (hemisphere-degrees-minutes-seconds):
> *034* *1#**$a*a*$b*22000000*$d*W1800000*$e*E1800000*$f*N0840000*$g*
> S0700000
> *034* *1#**$a*a*$b*253440*$d*E0790000*$e*E0860000*$f*N0200000*$g*N0120000
> *[The above two examples illustrate records for flat maps or flat maps in
> atlases.]*
>
> Example in *decimal degrees*: *hddd.dddddd* (hemisphere-degrees.decimal
> degrees):
> *034* *1#**$a*a*$d*E079.533265*$e*E086.216635*$f*S012.583377*$g*
> S020.419532
>
> Example in *decimal degrees*: *+-ddd.dddddd* (hemisphere[+/-]-degrees.decimal
> degrees) (“+” for N and E, “-“ for S and W; the plus sign is optional):
> *034* *1#**$a*a*$d*+079.533265*$e*+086.216635*$f*-012.583377*$g*
> -020.419532
>
> Example without the optional plus sign:
> *034* *1#**$a*a*$d*079.533265*$e*086.216635*$f*-012.583377*$g*-020.419532
>
> Example in *decimal minutes*: *hdddmm.mmmm* (hemisphere-degrees-minutes.decimal
> minutes):
> *034* *1#**$a*a*$d*E07932.5332*$e*E08607.4478*$f*S01235.5421*$g*
> S02028.9704
>
> Example in *decimal seconds*: *hdddmmss.sss* (hemisphere-degrees-minutes-seconds.decimal
> seconds):
> *034* *1#**$a*a*$d*E0793235.575*$e*E0860727.350*$f*S0123536.895*$g*
> S0202858.125
>
> If the coordinates are given in terms of a center point rather than
> outside limits, the longitude and latitude which form the central axis are
> recorded twice (in subfields $d and $e and in $f and $g, respectively).
> *034* *1#**$a*a*$b*75000*$d*W0950500*$e*W0950500*$f*N0303000*$g*N0303000
> *034* *1#**$a*a*$d*W119.697222*$e*W119.697222*$f*N034.420833*$g*
> N034.420833
> *034* *1#**$a*a*$d*-119.697222*$e*-119.697222*$f*+034.420833*$g*
> +034.420833
> *034* *1#**$a*a*$d*W11941.833333*$e*W11941.833333*$f*N03425.250000*$g*
> N03425.250000
> *034* *0#**$d*W0735848*$e*W0735848*$f*N0404554*$g*N0404554
> *[Coordinates of Carnegie Hall, a concert venue depicted in an image.]*
>
>
> On Mon, Dec 20, 2021 at 7:57 AM Angela R Cope <[log in to unmask]> wrote:
>
>> Extent Update
>>
>> 1) The base map choices have been added (lower right)
>>
>> 2) Can anyone look at the MARC layouts in Extent and give feedback? Do
>> any of the formats require  MARC leading zeros?
>>
>> 3) Coordinates must be entered in order of W, E, N ,S to validate, so
>> something like -100,-90,36,28 (when you click on "coordinates," the search
>> button says not valid but once you enter in coordinates such as this
>> example, the buttons refreshes to valid)
>>
>> Anything else??
>>
>>
>> Angie
>>
>