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Tyner indb
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Bog'liq Judith A. Tyner. Principles of map design. New York. „The Guilford Press”, 2010Interpolation. Estimating values from an isarithmic map; estimating location of isarithmic
lines from control points.
Interrupted projections. Projections on which the central meridian is repeated in order to
reduce distortion. It permits each area (usually a continent) to be placed in the zone of
best representation. Also called a “recentered projection.”
Interval, choroplethic and isarithmic. The difference in value between two adjacent categories
or isarithmic lines.
Interval measurement, or interval scale. Provides information about differences in value
between ranks, in addition to rank and kind. See also Nominal measurement and
Ordinal measurement.
Isarithm. A line that joins all points having the same value above or below some datum. Also
called “isoline” or “isogram.”
Isoanamorphic lines. Lines that show equal deformation on a map projection.
Isochrone. A line that joins all points having the same time from a specific point.
Isoline. Another term for “isarithm.”
Isometric line. A type of isarithmic line. The lines connect values either derived or actual that
occur at actual points.
Isopleth. A type of isarithmic line. The lines connect derived values that occur at inferred
points. The lines are assumed to have equal values for the distribution.
Key. Synonym for legend. Often used on children’s maps.
Latitude. Angular distance north or south of the equator; measured from 0° to 90°.
Layer tint. The use of colors between different isarithmic lines. When used with elevation
contours, the method is called “hypsometric tints.”
Layout. The arrangement of the various map elements within the borders of the map. See also
Composition.
Legend. An explanation of the symbols and conventions used on a map.
Lightness. Also called “value.” Shades of a hue from light to dark.
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