The symbol library design of MicroStation topographic map
The topographic map collection of a certain color of the geometry of point, line, surface, text, 1~int, line, surface geometry, called the map symbol.Therefore generalized map symbol refers to a variety of things, the phenomenon of line to draw graphics, colors, the sum of the mathematical language and Hutchison note,also known as a map symbol system. Narrow map symbol refers to the mapping object spatial distribution,quantity,quality and other characteristics of signs, information carriers, including DLG symbols, colors, graphics and annotation on the graph.Map symbol is the language of the map, it can not only show the shape, size and location of the map, but also reflects the quality, auantitv.and their mutual relations of the surface features.
NETL
NSTL
万方数据
维普
