GIS Dictionary

[aerial photography] Acronym for digital orthophoto quadrangle. A computer-generated, uniform-scale image created from an aerial photograph. Digital orthophoto quadrangles are […]

[navigation] Acronym for digital orthophoto quarter quadrangle. A digital orthophoto quadrangle (DOQ) divided into four quadrants.

[cartography] A quantitative, thematic map on which dots of the same size are randomly placed in proportion to a numeric

[cartography] A map that uses dots or other symbols to represent the presence, quantity, or value of a phenomenon or

[printing] A photographic film covered with uniformly sized, evenly spaced dots used to break up a solid color, producing an

[computing] The level of coordinate exactness based on the possible number of significant digits that can be stored for each

[computing] The level of coordinate exactness based on the possible number of significant digits that can be stored for each

An algorithm that simplifies complex lines by reducing the number of points used to represent them. The Douglas-Peucker algorithm was

[network analysis] In network tracing, the direction along a line or edge that is the same as the direction of