Method for combining GIS system with split joint wall system and device thereof

A splicing wall and geographic information data technology, which is applied in the application field of GIS system, can solve the problems of inconvenient operation, low resolution of GIS terminal, and distant pixel spacing of display content, etc., and achieve small data transmission, high resolution and high resolution. , high definition effect

Inactive Publication Date: 2008-05-14
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The defect of the first method is that since the content displayed by the GIS terminal needs to be compressed, transmitted, decompressed and other operations, the display refresh rate of the user on the video wall will be relatively slow. The displayed content is adjusted to fit the display screen of the terminal, and the resolution of the GIS terminal as the signal display source is relatively low. When the content displayed on the terminal is transmitted to the splicing wall, the pixels of the displayed content do

Method used

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  • Method for combining GIS system with split joint wall system and device thereof
  • Method for combining GIS system with split joint wall system and device thereof
  • Method for combining GIS system with split joint wall system and device thereof

Examples

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Example Embodiment

[0034] Example 1:

[0035] The GIS client performs a magnification operation on the geographic image currently displayed on the client according to the first operation instruction input by the user through the keyboard or mouse. When the magnification operation is completed, the GIS client obtains the coordinate information of the magnified geographic image data. According to the first operation instruction, a second operation instruction for performing the zoom-in operation is formed. The second operation instruction may include the zoom-in scale of the operation step and the geographic coordinate information of the geographic image after the zoom-in operation is completed, and then the GIS client Send the second operation instruction of the zoom-in operation to the GIS server.

[0036] After the GIS server receives the second operation instruction sent by the GIS client, it parses the second operation instruction, obtains the operation type and geographic coordinates and other i...

Example Embodiment

[0041] Example 2:

[0042] In this embodiment, when the GIS server receives the second operation instruction sent by the GIS client and parses the second operation instruction, the GIS server obtains the geographic coordinate information contained in the second operation instruction , That is, the geographic coordinate range information of the geographic information data after the image is enlarged, combined with the display screen size of the splicing wall, according to the current expansion ratio input by the user or a predetermined expansion method, the geographic coordinates contained in the second operation instruction The information is expanded, and the geographic information data within the extended geographic coordinate range is displayed on the mosaic wall, so that the geographic image displayed on the mosaic wall screen includes the geographic image displayed by the GIS client, and is connected to the GIS client. The same part of the displayed geographic image is locate...

Example Embodiment

[0046] Example 3:

[0047] The GIS client performs a zoom-in / out operation on the geographic image currently displayed by the client according to the first operation instruction input by the user through the keyboard or mouse. When the zoom-in / out operation is completed, the GIS client performs the zoom-in / out operation according to the first operation instruction, The coordinate information of the geographic image data after the enlargement / reduction operation of the GIS client, the size and resolution information of the display screen and the splicing wall of the GIS client, and the display position of the same content as the GIS client on the splicing wall are calculated. Finally, the coordinate range information of the geographic information data displayed on the GIS server is generated, and a second operation instruction to perform the zoom-in / out operation is generated, and the second operation instruction includes the need to be calculated by the GIS client The geographic c...

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Abstract

The invention discloses a method used for combining a GIS system with a splicing wall system and a device thereof. The invention is characterized in that a GIS client terminal and a GIS server terminal are adopted; the operation instruction of the customer is received by the GIS client terminal; a geographical information data is acquired from a GIS data base and an instruction used for acquiring the geographical information data from the GIS data base is generated; the instruction is sent to the GIS server terminal; the GIS server terminal executes a corresponding operation according to the instruction; and the corresponding geographical information is displayed on a splicing wall. Therefore, the invention has the advantages that the instruction which is sent to the GIS client terminal by the GIS server terminal comprises operation information, thereby being small in the data transmission quantity; the data obtained from the GIS data base is displayed on the GIS server terminal, thereby ensuring the quality of the image, effectively utilizing the high resolving capability and high definition of the splicing wall, and effectively achieving the combination between the GIS system and the splicing wall system; besides, the customer only needs to operate at the GIS client terminal, thereby being convenient for operation.

Description

technical field [0001] The invention relates to the application technology of the GIS system, in particular to a method and a device for combining the GIS system with the splicing wall system. Background technique [0002] GIS (Geographic Information System, geographic information system) is a computer system that uses modern computer graphics and database technology to process geographic space and related data. It integrates geography, surveying, geometry, computer science and application objects. The most important feature of GIS is that it can organically combine the geographical location and characteristics of space objects on the earth's surface, and display them intuitively through computer screens. Therefore, GIS geographic information systems are widely used. It is used in planning, land, transportation, electric power, public security and other industries, and the splicing wall system is generally composed of display units, image controllers, large-screen applicatio...

Claims

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Application Information

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IPC IPC(8): G06F17/30H04L12/28H04L29/06
Inventor 王涛孙奥刘威刘亚平
Owner GUANGDONG VTRON TECH CO LTD
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