A large-scale dynamic symbol plotting method based on multi-scale visualization
A dynamic symbol, large-scale technology, applied in the field of public security management, can solve the problems of poor visualization of dynamic situation, error in the expression of situation plotting information, delay, etc. Effect
Active Publication Date: 2022-05-24
NAT UNIV OF DEFENSE TECH
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Problems solved by technology
[0003] (1) The scale of dynamic visualization is single
In previous dynamic situational mapping, all situational symbols and their deduction actions at different map levels will be rendered and redrawn, but there is no multi-scale visualization model corresponding to the pyramid model of the situational mapping base map
[0004] (2) The dynamic visualization effect is not good
The poor visualization of the dynamic situation is reflected in the information overload
[0005] (3) The efficiency of dynamic visualization is not high
When this kind of resource consumption exceeds the load of the browser, a series of problems such as distortion, delay and stuttering will occur. When these problems occur, the visualization of situation plotting will lose its proper functions, resulting in Errors in the expression of information or even wrong expressions cause serious interference to the commander's judgment and decision-making
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[0028] In order to make the above-described objects, features and advantages of the present invention can be more obvious and understandable, the following in conjunction with the accompanying drawings of the specific embodiments of the present invention to make a detailed description.
[0029] In the following description elaborates a lot of specific details in order to fully understand the present invention, but the present invention may also be implemented in other ways different from those described herein, those skilled in the art may do similar generalizations without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0030] Secondly, the present invention is described in detail in conjunction with a schematic diagram, when detailing embodiments of the present invention, for ease of illustration, the profile diagram indicating the structure of the device will not be partially enlarged accor...
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The present invention belongs to the technical field of public safety management, and specifically relates to a large-scale dynamic symbol plotting method based on multi-scale visualization, including step 1: first, using Geohash code to establish an organization model for dynamic situation data; step 101: large-scale dynamic Organize and retrieve situational data; Step 102: Extract the characteristics of large-scale dynamic situational data; Step 103: Analyze and model dynamic situational data; Step 2: Then use the circle growth algorithm and the improved square root law model Screening of situational symbols to realize visualization based on dynamic LOD; Step 201: improve the point simplification algorithm based on circle growth, and simplify redundant dynamic situational symbols. The structure of the method is reasonable, and the dynamic situation information has been significantly improved in two aspects, the visualization effect and the operating efficiency, and the dynamic situation visualization process can show good performance.
Description
Technical field [0001] The present invention relates to the technical field of public safety management, specifically a large-scale dynamic symbol plotting method based on multi-scale visualization. Background [0002] In some specific scenarios, such as in public safety management or emergency handling, in order to enable commanders to make correct analytical decisions about the current situation, commanders not only need to control static situation information, but also need to be able to see its development and change on the basis of this situation information. Therefore, we need to sequence and process the static situation information, and display the trend development trend in the graph in a dynamic visualization way. However, in practical applications, the use of dynamic situation visualization technology to display the situation information on the situation map is huge, and large-scale situation resources are constantly rendered and repainted on the situation map, which wi...
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IPC IPC(8): G06T13/00G06T9/00G06F16/81G06F16/84
CPCG06T13/00G06T9/001G06F16/81G06F16/88
Inventor 钟志农倪浩杨岸然贾庆仁马梦宇欧阳雪熊伟吴烨李军陈荦彭双伍江江杜春陈浩
Owner NAT UNIV OF DEFENSE TECH