The invention discloses a map-number detachable mapping method and
system, comprising the following steps: A. establishing a map primitive model, and making complex and diverse symbols through the primitive model to form a map symbol
system; B. establishing a map Spatial location mapping between symbols and geographic objects, to realize the link between the two; C. Separate
processing of graphs and numbers, on the basis of discarding symbolic data, focus on the entity generation and topology
processing of geographic data itself; D.
Integrated processing of graphs and numbers, the Symbolic data is combined with spatial entity data such as points, lines, and surfaces, and through map element conflict
processing and map symbolization, digital maps are produced. The present invention realizes the logical division management of symbol
system, map data and spatial data, and the three are related by the location coordinates of
geographic space, so that the management of geographic elements can be conveniently managed, and the symbol of map data can be realized quickly and flexibly. configuration.