Map query area rendering method, server and system

A server and area technology, applied in the field of map rendering, can solve the problems of unresponsive map query program, stuck, and no positioning of objects in the query area, so as to avoid overlapping layers, avoid errors, and make query convenient and fast

Active Publication Date: 2016-12-07
TAIHUA WISDOM IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Map query area rendering method, server and system
  • Map query area rendering method, server and system
  • Map query area rendering method, server and system

Examples

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Embodiment Construction

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Take the mouse to select the map query area as an example: select a point on the map to limit the point query area; select a line on the map to limit the linear query area; select a surface on the map to To limit the surface query area.

[0043] Wherein, the linear query area includes linear areas such as rivers, roads and railway lines in the map.

[0044] figure 1 It is the rendering method of the map query area of ​​the present invention, the method is implemented in the map data server, and specifically includes the following steps:

[0045] Monitor the touch map event; among them, the touch map event includes limiting the point query area, limiting the line query area and limiting the area query area; the point query area, line query area and area query area are associated ...

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PUM

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Abstract

The invention discloses a map query area rendering method, server and system. The method is realized in a map data server and specifically comprises the steps of monitoring a map touch event, wherein the map touch event comprises a limited dotted query area, a limited linear query area and a limited planar query area, and the dotted query area, the linear query area and the planar query area relate to different layers respectively; processing the monitored map touch event according to the steps of initializing parameters identifying the map touch event, executing My Identity Task operation provided by an API standard function to identify the map touch event, and determining a corresponding query area range corresponding to the map touch event; calling a corresponding layer, and conducting rendering display on the query area range corresponding to the map touch 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44G06F3/0481G06F17/30
CPCG06F3/0481G06F9/451G06F16/29
Inventor 张同义马述杰李萍王小光韦晓董文泉高明乾胡玉玲陈美霞
Owner TAIHUA WISDOM IND GRP CO LTD
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