Map symbol library management system and method based on self-adaptation mechanism

Abstract

The invention discloses a map symbol library management system based on a self-adaptation mechanism, which comprises a map symbol library accessing and indexing module, a symbol library metadata management module, an intelligent retrieving module and a map symbol evaluating and optimizing module, wherein the map symbol library accessing and indexing module is used for dividing each map symbol into symbol graphic data and symbol attribute data, storing the two data separately, carrying out index connection by identification numbers of the map symbols; the symbol library metadata management module is used for leading the map symbols expressing same ground features to construct map symbol sets, respectively recording the relevance between map symbols and the map symbol sets by metadata, and relevance between the map symbol sets; the intelligent retrieving module is used for retrieving all map symbols of ground features needed by representative users by the metadata of the map symbol library; and the map symbol evaluating and optimizing module is used for evaluating and optimizing the map symbols by the symbol attribute data. The invention further provides a map symbol library management method correspondingly. Therefore, the invention can improve the rapidness of the map symbol library, and leads the map symbol library to have self optimization capability.

Description

technical field [0001] The invention relates to the field of management of map symbol library in computer graphics, remote sensing and GIS (Geographic Information System, geographic information system), in particular to a map symbol library management system and management method based on an adaptive mechanism. Background technique [0002] Map symbols are the language of the map. The map symbol library management system is responsible for the organization and management of map symbols. The quality of its design directly affects the rapid response capabilities of the map platform and GIS. However, the patents that have been applied for at present do not involve the management design of the map symbol library. Through the analysis of the map symbol library management systems of four excellent GIS / map platforms (ArcGIS, MapInfo, SuperMap, MapGIS) at home and abroad, the following deficiencies are found: [0003] (1) It is inconvenient for users to select map symbols. MapInfo...

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Problems solved by technology

[0003] (1) It is not convenient for users to choose map symbols

MapInfo is only divided according to points, lines, and planes, so that when users choose map symbols, facing a large number of map symbols, they need to spend a lot of time on the cognitive selection of map symbols, and may not be able to choose the optimal symbol in the end; Although MapGIS, SuperMap, and ArcGIS classify map symbols, they cannot fundamentally solve the time that users spend energy on cognition of unnecessary map symbols

[0004] (2) The map symbol library management system does not have the ability of self-optimization

[0005] In summary, the existing map symbol library management scheme obviously has inconvenience and defects in actual use, so it is necessary to improve it

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