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255 - CARTOGRAPHIC MATHEMATICAL DATA (R)
Mathematical data that is associated with map material including celestial charts. This data may also be coded in field 034 (Coded Mathematical Data).
Indicators
- First - Undefined
- # - Undefined
- Second - Undefined
- # - Undefined
Subfield Codes
- $a - Statement of scale (NR)
Includes any equivalency statements vertical scales or vertical exaggeration statements for relief models and other three-dimensional items. - $b - Statement of projection (NR)
- $c - Statement of coordinates (NR)
- $d - Statement of zone (NR)
Used for celestial charts. - $e - Statement of equinox (NR)
- $f - Outer G-ring coordinate pairs (NR)
- $g - Exclusion G-ring coordinate pairs (NR)
- $6 - Linkage (NR) See Control Subfields
- $8 - Field link and sequence number (R) See Control Subfields
Examples
255 |
##$aScale not given. |
255 |
##$aScale [ca. 1:90 0 |
255 |
##$aScale [1:6 336 0 1 = 100 miles. Vertical scale [1:192 0 1 = approx. 1000'. |
255 |
##$aScale not given ;$bConic proj. |
255 |
##$aScale 1:22 0 0 ;$bConic proj.$c(E 72°--E 148°/N 13 18 |
255 |
##$aScale 1 0 32 34 35 35 |
255 |
##$aScales vary$d(Zones +90° to +81° to 63° -81 to 98 $eeq. 1950). |
255 |
##$aScale not given$d(RA 0 hr. to 24 hr./Decl. +90° to -90 1980 |

