Map and digit separable charting method and system

Abstract

The invention discloses a map and digit separable charting method and system. The method comprises the following steps that A) a map basic element model is established, and the basic element model isused to make complex and diversified symbols to establish a map symbol system; B) spatial position mapping between map symbols and geographical objects is established to realize linkage between the map symbols and the geographical objects; C) the map is separated from the digit, and on the basis that symbol data is abandoned, the entity generation and topology processing of the geographical data itself are focused on; and D) the map is integrated with the digit, and symbol data is combined with space entity data including point, line and plane, and a digital map is produced by processing essential factor conflict of the map and symbolizing maps. Thus, logic segmentation of the symbol system, map data and space data is managed, the symbol system, map data and space data are associated via positional coordinates of the geographic space, thus, the essential geographic factors can be managed conveniently, and symbolized configuration of the map data can be realized rapidly and flexibly.

Description

technical field [0001] The invention relates to a drawing method, in particular to a drawing method and system with detachable and combined drawing numbers. Background technique [0002] In the 21st century, information technology has brought unprecedented changes to cartography. Many cartographic work done by hand in the past has been replaced by digital cartography, which greatly improves the efficiency of map production. At present, graph databases use digital cartography model (DCM) to organize and manage map graphic symbol data; spatial databases use digital landscape model (DLM) to store and analyze spatial data. The two are distinct and interrelated. In GIS, spatial data refers to data that reflects the location, attributes, and topological relationships of spatial geographic entities. Spatial data abstracts spatial objects into three geometric types: point, line, and surface. The data has standard classification and coding, standard layering, Graphical elements are...

AI Technical Summary

Problems solved by technology

This method has a simple structure and is easy to use. Usually, the cartographic expression of simple elements of general ground features can be completed with the help of the symbol library, but it cannot fully meet the requirements of cartographic specifications and graphical representation, and it lacks flexibility for the visual expression of complex ground features. , it is difficult to solve the symbolic expression of personalized symbolic expression, element mapping conflicts and dynamic changes of attributes

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