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Tyner indb
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Bog'liq Judith A. Tyner. Principles of map design. New York. „The Guilford Press”, 2010Plane projection. A transformation of the earth’s grid onto a plane surface.
Planimetric. Features are shown in their correct horizontal positions.
Point phenomena. Geographic phenomena that occur or are assumed to occur at discrete
points.
Polygonal graph. Similar to a radar graph, but the rays are not shown.
Primaries. The three colors used to create all other colors. The additive primaries are red,
green, and blue; the subtractive primaries are cyan, magenta, yellow, and black.
Prime meridian. The meridian adopted at the origin (0°) for measurement of longitude. The
meridian passing through Greenwich, England, was adopted in 1884, and is accepted
by most countries of the world. Prior to that date, each country chose its own prime
meridian, frequently the meridian through its capital city.
Printer. (1) The person who prints a map. (2) A piece of computer hardware that is capable of
printing letters and perhaps graphics.
Profile. A cross section of a part of the earth’s surface created by plotting elevations from a
contour map along a linear traverse. The horizontal scale represents linear distance
along the traverse, and the vertical scale represents elevation. The vertical scale is com-
monly exaggerated to bring out variations in the terrain.
Projection. A systematic arrangement of all or a part of the earth’s (or other spherical) grid
on a plane.
Propaganda map. A map designed to persuade or influence the reader; the connotation of
propaganda is usually negative or untruthful.
Proportional symbol. A point symbol, such as a circle or square, that is drawn so that its area
is actually or visually proportional to the amount represented.
Pseudocylindrical projection. A projection on which parallels are straight lines of varying
length and meridians are curved lines that are spaced equally on the parallels.
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