Cartographic Material (2nd ed.)
5D1. Maps, plans, etc. (dimensions)
Give the height ´ width in centimetres, to the next whole centimetre up, of a two-dimensional cartographic item (e.g., if a measurement is 37.1 centimetres, record it as 38 cm). (See Figure 19.) Optionally, for early and manuscript cartographic items, give the dimensions to the nearest millimetre expressed in tenths of a centimetre. [NOTE: RBT will NOT use this option in cataloging maps in books.]
1 map : col. ; 25 x 35 cm.
Figure 19. 5D1. Dimensions. Neat line, border, and margins. Measure within the neat line
1 map : col. ; 60 x 66 cm.
Application
When the map is placed in reading position, “height” is the top-bottom measurement of the map; “width” is the left-right measurement of the map.
When the dimensions are given in centimetres, any fraction being counted as a whole centimetre, express them in whole centimetres only, i.e., “126 ´ 340 cm” means any fraction of a centimetre, if present, has been rounded up to the next whole centimetre.
As a matter of style and readability, do not repeat the word “on” in a statement of sheet size in the dimension element when the phrase “on sheet” is used in the extent of item element. (See Figure 26.)
Figure 26. 5D1. Dimensions. One map on two or more sheets.
1 map on 4 sheets : col. ; 160 x 190 cm, sheets 88 x 103 cm.
Give the measurements of the face of the map, etc., measured within the neat line. (See Figure 19.)
Application 2
The neat line is a line that encloses the detail of a map. There is only one neat line on a map. Measurement of a map includes any detail that breaks through the neat line. If there is no neat line, measure the maximum extent of the cartographic detail. (See Figures 19 and 20.)
Figure 20. 5D1. APPLICATION 2 Dimensions. Detail extends beyond neat line.
1 map : col. ; 36 x 25 cm.
For component maps of the same size, record the common size. If there are only two component maps or two common sizes, both may be given; otherwise record the greatest dimensions followed by or smaller. Always give the sheet size. (See Figure 21.)
Figure 21. 5D1. APPLICATION 2 Dimensions. Component maps.
4 maps on 1 sheet : col. ; each 22 x 28 cm, sheet 50 x 72 cm.
Figure 22. 5D1. Dimensions. Circular map.
1 map : col. ; 50 cm in diam., on sheet 61 x 55 cm.
Figure 23. 5D1. Dimensions. Double hemisphere.
1 map : col. ; 2 hemispheres each 47 cm in diam., on sheet 71 x 107 cm.
Figure 24. 5D1. Dimensions. Bleeding edge.
1 map : col. ; 78 x 72 cm.
Application 3
The greater or greatest dimensions of the map itself are the extent of the cartographic content, coverage, or image on the item. Give these dimensions if it is possible to measure the height and width of the map, etc., itself using a maximum of two point to point measurements.
If it is difficult to determine the points for measuring the height and the width of the map, etc. (e.g., when the shape is extremely irregular, or when it was printed without one or more of its borders), give the height ´ width of the sheet specified as such.
1 map : col. ; on sheet 45 x 33 cm.
If a map, etc., is on sheets of two sizes, give both sets of dimensions. If the sheets are of more than two sizes, give the greatest height of any of them followed by the greatest width of any of them and or smaller.
1 map on 2 sheets ; sheets 25 x 35 cm and 30 x 35 cm.
1 map on 4 sheets ; sheets 30 x 40 cm or smaller.
If a map, etc., is on one or more sheets in two or more segments designed to fit together to form one map, etc., give the dimensions of the complete map, etc., followed by the dimensions of the sheet(s). Separate the dimensions by a comma and precede the sheet dimension with on unless the number of sheets is given in the extent of the item. If such a map, etc., is mounted, give the dimensions of the whole map, etc., alone. (See Figures 25, 26, and 27.)
1 map in 4 segments ; 10 x 60 cm, on sheet 25 x 35 cm.
1 map on 9 sheets ; 264 x 375 cm., sheets 96 x 142 cm.
1 map on 4 sheets ; sheets 30 x 40 cm
1 map ; 120 x 276 cm.
(Mounted map created from several segments)
Figure 25. 5D1. Dimensions. One map on two or more sheets.
1 map on 2 sheets : col. ; 68 x 88 cm, sheets 76 x 50 cm.
Figure 27. 5D1. Dimensions. One map printed in segments on one sheet.
1 map : col. ; 144 x 22 cm., on sheet 55 x 64 cm.
If it is difficult to determine the points for measuring the height and width of a complete map, etc., that is in segments, or if it is difficult to assemble the map, etc., for measuring, give only the height and width of the sheet(s) specified as such.
1 map on 3 sheets ; sheets 30 x 40 cm.
2 maps on 6 sheets ; sheets 60 x 60 cm. or smaller