A rendering method, server and system for a map query area

Abstract

The invention discloses a rendering method, server and system of a map query area, wherein the rendering method of a map query area is implemented in a map data server, and specifically includes monitoring a map touch event; wherein, the touch map event includes defining Point query area, limited linear query area and limited area query area; point query area, linear query area and area query area are respectively associated with different layers; process the monitored touch map event; process the monitored The specific process of the touch map event includes: initializing the parameters for identifying the touch map event, executing the My Identify Task operation provided by the API standard function to identify the touch map event, and determining the scope of the query area corresponding to the touch map event; calling The corresponding layer is used to render and display the range of the query area corresponding to the touch map event on the corresponding layer.

Description

technical field [0001] The invention belongs to the field of map rendering, and in particular relates to a rendering method, server and system for a map query area. Background technique [0002] The current map is only presented to users in the form of an overview. Once the query area object is determined, the query time will be longer or even impossible to query; at the same time, the query area object is not rendered, the query area object has no corresponding positioning, and the boundary of the query area object cannot be defined. . [0003] In addition, in the process of map query, third-party plug-ins are generally used for query, but when using third-party plug-ins, it is easy to cause overlapping layers, resulting in errors between the area to be queried and the actual rendering area; the existing map area query does not The query is not performed through the layer, resulting in slow query speed, and the map query program may not respond or freeze. Contents of the...

AI Technical Summary

Problems solved by technology

[0002] The current map is only presented to users in the form of an overview. Once the query area object is determined, the query time will be longer or even impossible to query; at the same time, the query area object is not rendered, the query area object has no corresponding positioning, and the boundary of the query area object cannot be defined.

[0003] In addition, in the process of map query, third-party plug-ins are generally used for query, but when using third-party plug-ins, it is easy to cause overlapping layers, resulting in errors between the area to be queried and the actual rendering area; the existing map area query does not The query is not performed through the layer, resulting in slow query speed, and the map query program may not respond or be stuck

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