• Classless choropleth
  • Communication
  • Composition
    		•

    Tyner indb




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    Judith A. Tyner. Principles of map design. New York. „The Guilford Press”, 2010

    Choropleth map. A type of quantitative map on which statistical or administrative areas are 
    colored or shaded proportionally to the value represented.
    Chroma. See Saturation.
    Clarity. In map design this refers to ease of understanding the map. On a clear map all ele-
    ments serve a purpose and there is no distracting clutter or “noise.”
    Classification. Placing data into groups that have similar characteristics or values. A general-
    ization process.
    Classless choropleth. A type of choropleth map for which the data are not placed into catego-
    ries. Instead, interval scaling of the data is employed, and each enumeration area is rep-
    resented by a separate areal symbol, usually crosshatched lines. Also called “unclassed 
    choropleth” or “cross-line choropleth.”
    CMYK. The subtractive primary colors, cyan, magenta, and yellow, plus black. These are the 
    primaries used with pigments on paper.
    Color separation. Separation of the colors on a map by photographic or drafting processes for 
    subsequent reproduction. A separate drawing, negative, or scribed image is prepared 
    for each color.

    appendix C. glossary 235
    Communication. Transferring a message through some medium to a receiver.
    Compilation. Selection, assembly, evaluation, and graphic presentation of all relevant infor-
    mation required for the preparation of a map. Such information may be derived from 
    other maps or from other sources.
    Composition. The arrangement within the borders of map elements, such as subject area, 
    title, legend, scale, and the like.
    Compromise projection. A projection that has no special properties, but usually has a good 
    appearance.
    Condensed projections. Projections having a portion of the grid removed to permit a larger 
    scale map to be presented on a given page size.

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