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Method for managing mass static targets under space coordinate systems

A space coordinate system and target management technology, applied in the field of massive target display management, can solve the problems of difficult display management, low efficiency, and large memory usage of massive static objects, and achieve high retrieval efficiency and reduce memory usage.

Inactive Publication Date: 2018-03-09
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

[0003] Purpose of the invention: Aiming at the above problems, the present invention proposes a method for managing massive static objects in a spatial coordinate system, which can effectively solve the problems of large memory usage, difficult display management, and low efficiency of massive static objects in a spatial coordinate system

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  • Method for managing mass static targets under space coordinate systems
  • Method for managing mass static targets under space coordinate systems
  • Method for managing mass static targets under space coordinate systems

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[0013] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] like figure 1 As shown, the specific steps of the massive static object management method under the spatial coordinate system of the present invention are as follows:

[0015] (1) Perform longitude, latitude, and bounding box processing on the input static target to form static target data that meets the standard.

[0016] Input N static target points in turn, and standardize the target points. The main parameters include latitude and longitude, height, bounding box, visible level, etc. Note that the standardized static target data structure is expressed as PointStruct:

[0017] PointStruct i = {Lng, Lat, Alt, BoxSize, MinLevel, MaxLevel, Ref}

[0018] Among them, PointStruct i Represents the i-th target point, Lng represents the longitude of the target, Lat represents the latitude of the target, Alt represents the...

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Abstract

The invention discloses a method for managing mass static targets under space coordinate systems. According to the method, mass static targets are managed on the basis of a space scene tree, meanwhile, cutting control is performed on the space scene tree, addition and subtraction counting processing is performed on data in nodes according to visibility of nodes of the space scene tree, and data are dynamically loaded and unloaded with a multi-thread off-line access technology. The method has higher retrieval efficiency, the problems of difficulty in processing of target height and bounding boxes in planar scenes are solved, and the problems such as large memory usage, display management difficulty, low efficiency and the like of mass static targets under the space coordinate systems are effectively solved.

Description

technical field [0001] The invention relates to a method for displaying and managing a large number of objects in a computer space coordinate system, in particular to a method for managing a large number of static objects in a space coordinate system. Background technique [0002] In the current various geographic information systems and simulation platforms, the use of static objects gradually requires large capacity, high timeliness, low delay, and low memory usage. For example, there are tens of thousands of landmark data in geographic information systems, and hundreds of millions in space galaxy management. How to efficiently manage these massive static target data has increasingly become a key technology to measure the system. Traditional linear management and two-dimensional plane scene management are increasingly unable to meet the needs, such as long traversal time in linear management and serious image efficiency; Dimensional plane scene management cannot solve the...

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Application Information

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IPC IPC(8): G06F17/30G06F9/50G06F9/445
CPCG06F9/44521G06F9/5016G06F16/29G06F2209/5018
Inventor 李彭伟李亚钊王玉珠吴青松郑伟丁及堃
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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