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Stamp platform-based two-dimensional and three-dimensional map linkage method

A technology of 3D map and 2D map, which is applied in the field of geospatial information visualization, can solve problems such as the inability to link 2D and 3D maps on Web pages, achieve good linkage effects, and realize the effect of precise coordinate conversion

Active Publication Date: 2018-03-16
湖南优图信息技术有限公司
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AI Technical Summary

Problems solved by technology

[0004] At present, the problem existing in the 2D and 3D map linkage technology of GIS system based on the 2D and 3D hybrid structure is that it cannot be implemented in the C / S structure software environment, and the 2D and 3D map linkage cannot be performed on the Web page

Method used

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Embodiment Construction

[0026] The invention provides a 2D and 3D map linkage method based on the Stamp platform, which realizes the linkage of scenes in a 2D map and a 3D map on a Web page.

[0027] When the method is implemented, within the scope of the same page, the linkage interface includes a two-dimensional window and a three-dimensional window, and the purpose of the linkage is to realize the synchronization of the map information displayed in the two windows. That is, the two-dimensional and three-dimensional effects of the same area map are displayed in two interfaces at the same time.

[0028] The way to realize the linkage of 2D and 3D maps is that the geographical coordinates of the 2D part and the 3D part of the system correspond to each other, realize this correspondence through the coordinate conversion mechanism, and maintain the synchronization when their positions change through the interactive event trigger mechanism. The interactive event triggering mechanism makes it possible to...

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Abstract

The invention provides a Stamp platform-based two-dimensional and three-dimensional map linkage method. A coordinate conversion interface of a Stamp platform is called to realize conversion between two-dimensional coordinates and geographic coordinates in a three-dimensional map. When a two-dimensional map is linked with the three-dimensional map, a linkage event is triggered through an interfaceof ArcGIS API for JavaScript; a FlytoLookat interface of the Stamp platform is called to enable a three-dimensional ball to fly to a range state of a two-dimensional view, thereby linking the two-dimensional map with the three-dimensional map. When the three-dimensional map is linked with the two-dimensional map, a three-dimensional ball object event is triggered through an OnObserverChanged interface of the Stamp platform to enable the two-dimensional map to be located and zoomed to a current range of a three-dimensional scene, thereby linking the three-dimensional map with the two-dimensional map. The three-dimensional map is subjected to secondary development based on the Stamp platform; and the two-dimensional map is developed based on the ArcGIS API for JavaScript. Through the ArcGISAPI for JavaScript, map resources provided by an ArcGIS Server can be embedded in a Web application, so that the two-dimensional and three-dimensional map linkage method provided by the invention is realized in a Web page.

Description

technical field [0001] The invention belongs to the technical field of geospatial information visualization, and in particular relates to a two-dimensional and three-dimensional map linkage method based on a Stamp platform. Background technique [0002] The traditional two-dimensional geographic information system is mature but lacks the effects of three-dimensional visualization and virtual simulation. The three-dimensional geographic information system is advanced but lacks the convenience and macroscopicity of the two-dimensional geographic information system. The geographic information system based on the linkage of 2D and 3D can solve this contradiction. At present, the GIS system based on the hybrid structure of 2D and 3D can realize the linkage display and query function of geographic information in 2D and 3D interfaces. GIS: geographic information system, is a comprehensive discipline, combining geography and cartography, remote sensing and computer science, is a co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06T17/05
CPCG06T17/05G06F16/29
Inventor 王乐程佳童设华李光强汪彪章宜燕
Owner 湖南优图信息技术有限公司
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