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255  Cartographic Mathematical Data (R)

       

Input Standards

Required if applicable/Required if applicable
1st Indicator  Undefined
blank character  Undefined
2nd Indicator  Undefined
blank character  Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards 
‡a Statement of scale (NR) Mandatory/Mandatory
‡b Statement of projection (NR) Required if applicable/Required if applicable
‡c Statement of coordinates (NR) Required if applicable/Required if applicable
‡d Statement of zone (NR) Required if applicable/Optional
‡e Statement of equinox (NR) Required if applicable/Optional
‡f Outer G-ring coordinate pairs (NR) Required if applicable/Optional
‡g Exclusion G-ring coordinate pairs (NR) Required if applicable/Optional




Definition

Mathematical data associated with cartographic material, including a statement of scale, statement of projection and/or a statement of bounding coordinates. The coordinates can represent a bounding rectangle, the outline of the area covered, and/or the outline of a statement of bounding coordinates. For celestial charts, it may also contain a statement of zone, declination data, and/or right ascension data, and/or equinox.

Enter a corresponding 034 field for each 255 field.

Use field 500 for additional information about projection, coordinates, zone, and equinox.

Use separate 255 fields for a multipart item with two different scales or a single item with components having two different scales. If a multipart item has three or more different scales, use one 255 field and enter Scales differ. See Cartographic Materials, Map Cataloging Manual and the Cataloging Service Bulletin for more information.

If you are entering a scale note for pre-AACR2 cataloging, use field 507.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank ( blank character ).
 
blank character Undefined 

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank ( blank character ).
 
blank character Undefined 

Subfields

 
‡a Statement of scale   The entire scale statement including any equivalency statements. Vertical scales or vertical exaggeration statements for relief models or other three-dimensional items are also included in subfield ‡a.
255     Scale 1:24,000.
255     Scale [ca. 1:100,000]
[Measured using a Natural Scale indicator] 
255     Scale ca.1:63,360.
[Item states scale is approximate] 
255     Scale [ 1:253,440 ] . 1 in. = 4 miles
[Verbal scale calculated into a Representative Fraction] 
255     Scale 1:250,000. Vertical scale 1:25,000
255     Scale not given.
255     Scales differ.
‡b Statement of projection   The entire projection statement.
255     Scale 1:24,000 ; ‡b polyconic proj.
255     Scale [ca. 1:31,680,000] ; ‡b Mercator proj.
255     Scale not given ; ‡b Conic equidistant proj.
‡c Statement of coordinates   Coordinates are recorded in the order of westernmost longitude, easternmost longitude, northernmost latitude and southernmost latitude. Record coordinates in the form hdddmmss (hemisphere-degrees- minutes-seconds) or, in other forms, such as decimal degrees. Right-justify the subelements and mark unused positions with zeros.

Degrees/minutes/seconds: hdddmmss (hemisphere-degrees-minutes-seconds):

255     Scale 1:250,000 ; ‡b Transverse Mercator proj. Everest spheroid ‡c (W 74˚50´ --W 74˚40´/N 45˚05´--N 45˚00´).
034 1   a ‡b 250000 ‡d W0745000 ‡e W0744000 ‡f N0450500 ‡g N0450000
255     Scale 1:7,500,000 ‡c (W 125˚--W 65˚/N 49˚--N 25˚).
034 1   a ‡b 7500000 ‡d W1250000 ‡e W0650000 ‡f N0490000 ‡g N0250000

Decimal degrees: hddd.dddddd (hemisphere-degrees.decimal degrees):

255     Scale 1:100,000 ‡c (E 079.5333265--E 086.216635/S 012.583377--S 020.419532).
034 1   a ‡b 100000 ‡d E 079.5333265 ‡e E 086.216635 ‡f S 012.583377

‡g S020.419532

Decimal degrees: + -ddd.dddddd (hemisphere[+/-]-degrees.decimal degrees [+ for N and E, - for S and W with + being optional]):

255     Scale 1:100,000 ‡c (E 079.5333265--E 086.216635/S 012.583377--S 020.419532).
034 1   a ‡b 100000 ‡d +079.5333265 ‡e +086.216635 ‡f S -012.583377

‡g -020.419532

Decimal degrees without the optional +:

255     Scale 1:100,000 ‡c (E 079.5333265--E 086.216635/S 012.583377--S 020.419532).
034 1   a ‡b 100000 ‡d 079.5333265 ‡e 086.216635 ‡f S 012.583377

‡g 020.419532

Decimal minutes: hdddmm.mmmm (hemisphere-degrees-minutes.decimal minutes):

255     Scale 1:100,000 ‡c (E 07932.5332--E 08607.4478/S 01235.5421--S 02028.9704).
034 1   a ‡b 100000 ‡d E07932.5332 ‡e E08607.4478 ‡f S01235.5421

‡g S02028.9704

Decimal seconds: hdddmmss.sss (hemisphere-degrees-minutes-seconds.decimal seconds):

255     Scale 1:100,000 ‡c (E 0793235.575--E 0860727.350 /S 012536.895--S 0202858.125).
034 1   a ‡b 100000 ‡d E0793235.575 ‡e E0860727.350 ‡f S012536.895

‡g S0202858.125

If you enter the coordinates to define a center point rather than outside limits ("bounding box"), enter a single longitude and a single latitude (two sets of values instead of four):

255     Scale 1:75,000 ‡c (W 95º05´/N 30º03´).
034 1   a ‡b 75000 ‡d W0950500 ‡e W0950500 ‡f N0300300 ‡gN0300300
255     Scale 1:25,000 ‡c (W 119.697222/N 034.420833).
034 1   a ‡b 25000 ‡d -119.697222 ‡e -119.697222 ‡f +034.420833 ‡g +034.420833
 

Entering coordinates. Use the following to create degrees, minutes, and seconds:

Symbol  Action 
Degrees Use the degree symbol.
Minutes Use a "miagkii znak."
Seconds Use the "tverdyi znak."


‡d Statement of zone   The statement of zone for celestial charts.
255     Scales differ ‡d (Zones +90˚ to +81˚ to 63˚, -81˚ to 98˚ ; ‡e eq. 1950).
‡e Statement of equinox   The statement of equinox or epoch.
255     Scale not given ‡d (RA 0 hr. to 24 hr./Decl. +90˚ to -90˚ ; ‡e eq. 1980).
‡f Outer G-ring coordinate pairs   Coordinate pairs that identify the closed nonintersecting boundary of the area covered.
‡g Exclusion G-ring coordinate pairs   Coordinate pairs that identify the closed nonintersecting boundary of the area contained within the excluded G-polygon outer ring.

Printing

Field 255 prints in the title paragraph following the title ( field 245) or edition statement ( field 250). All subfields of field 255 print in the order entered, exactly as entered, including punctuation. If you use multiple 255 fields, only the first two print. The print program supplies a space-dash-space ( -- ) between information in field 255 and the fields that precede and follow it. For more information, see OCLC Catalog Cards: http://www.oclc.org/support/documentation/worldcat/cataloging/cards/default.htm.

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