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Full-Text Articles in Computer Engineering
Three-Dimensional Data Exploration Technology Based On Large-Scale Complex Geometrical Surfaces, Zhiwei Ai, Cao Yi, Xiao Li, Huawei Wang
Three-Dimensional Data Exploration Technology Based On Large-Scale Complex Geometrical Surfaces, Zhiwei Ai, Cao Yi, Xiao Li, Huawei Wang
Journal of System Simulation
Abstract: Three-dimensional physical field data exploration visualization based on large scale complex geometric surface is of great value in three-dimensional electromagnetic simulation applications. Research was proposed which was suitable for massively parallel processing technology of three-dimensional data exploration. The concept of dual-data-source and data filtering policies was introduced based on contracts. Clipping algorithms based on spatial bounding box and data probing algorithm can support accurate three-dimensional data profiling for complex surface geometry. Research results have been applied to significant practical applications, such as the fuselage characteristics of electric field distribution analysis and high value targets within the seeker's accurate …
Design And Implementation Of Electromagnetic Spectrum Visualization System, Bin Fang, Ma Jie, Keyu Sun
Design And Implementation Of Electromagnetic Spectrum Visualization System, Bin Fang, Ma Jie, Keyu Sun
Journal of System Simulation
Abstract: Battlefield environment, filled with all kinds of devices with frequency electromagnetic signals, results in complex and rapidly changing electromagnetic environment. And the uncertainty brought by the complexity and the time variability not only makes it hard to predict the result of a war, but also leads to higher requirements for the current electromagnetic visualization platform serving for decision. To satisfy the visual needs for the electromagnetic spectrum data in the battlefield environment, the electromagnetic spectrum trend was designed in the perspective of temporal, spatial, frequency, and the energy domain. Four situations were proposed: equipment frequency radiation situation, spectrum …
Self Formation Development Mode With Vopes, Changming Fu, Chunsheng Long, Tang Hong
Self Formation Development Mode With Vopes, Changming Fu, Chunsheng Long, Tang Hong
Journal of System Simulation
Abstract: To solve the growing conflict between requirements and applications in simulation/visualization, self-formation development mode was proposed: domain experts DIY by WYSWYG in a self-adapting process. VOPES (Visual Open platform for Engineering System) was briefly introduced: integrated architecture, system modeling tools, visualization tools, automatic generation, debugging, deploying, and runtime infrastructure. VOPES enables domain expert to produce distributed simulation/visualization application, no need of coding, complex program skill, hard rules like UML, HLA, DDS, etc. VOPES can be widely used in applications like mission simulation, equipment demonstration, virtual range, training, ITEM. It is especially suitable to the fast, agile, complex simulation/visualization application, …
New 2d Flow Visualization Method Based On Mutual Information And Image Fusion, Weihua Shen, Shengbo Wang, Zhigeng Pan
New 2d Flow Visualization Method Based On Mutual Information And Image Fusion, Weihua Shen, Shengbo Wang, Zhigeng Pan
Journal of System Simulation
Abstract: A overview of flow visualization method based on information theory was made. After a comparative analysis of several classic two-dimensional flow visualization techniques, the concept of mutual information from information theory and image fusion technique was used to deal with the existing classical two-dimensional flow visualization techniques. A new two-dimensional flow visualization technique was obtained. The visualization results of the new method is very well.
3d Flight Simulation System Visualization And Study Of Google Earth, Junyu Wang, Bin Cheng, Chuan Wang, Ren Jian
3d Flight Simulation System Visualization And Study Of Google Earth, Junyu Wang, Bin Cheng, Chuan Wang, Ren Jian
Journal of System Simulation
Abstract: Through the secondary development of Google Earth, flight training simulation system for visualization of realization, the system used B/S structure, the client browser using Google Earth, all the development on the server side. Mathematical model of aircraft was constructed; 3D modeling software SketchUp was used to establish a realistic fighter jets, missiles, high and low speed flame and other 3D model; the established 3D models was imported into Google Earth; by Microsoft VC ++ 6.0, the secondary development on Digital Earth was achieved, and the control of aircraft and other 3D models was realized; Matlab was used to verify …
A Survey On Graph Representation And Visualization Techniques, Chen Yi, Menglu Zhang, Yuchai Wan
A Survey On Graph Representation And Visualization Techniques, Chen Yi, Menglu Zhang, Yuchai Wan
Journal of System Simulation
Abstract: A graph consists of nodes and edges, and represents the relationship between two or more entities. Graph-based analysis can help understand the structure and nature of the entity relationships and reveal the implicit relationships in graphs. The representation and visualization methods of graphs play an important role in the graph analysis. In graph visualization research, the accuracy of knowledge transfer and people's mental map, etc. should be considered first, then the graphs beauty, the time requirement, and the computer performance. The graph representation methods, graph layout algorithms, visualization methods based on node-link-graphs, adjacency matrices, and graph embedding are reviewed, …
Modeling And Visualization On Scalar Fields Of Meteorological Data, Shuoben Bi, Yucheng Gong, Mingyue Lu, Zhou Hao, Yuanxiang Mao
Modeling And Visualization On Scalar Fields Of Meteorological Data, Shuoben Bi, Yucheng Gong, Mingyue Lu, Zhou Hao, Yuanxiang Mao
Journal of System Simulation
Abstract: There are still many deficiencies in efficiency, interactivity, and accuracy in the visualization of meteorological scalar fields. Aiming at these problems, a display method based on multi-level volume rendering technology is proposed, which processes the spatial field data to form a three-dimensional space grid. Through the dynamic mapping between the scalar values and the color values and transparency, the three-dimensional dynamic visualization effect of the meteorological scalar data is realized. Aiming at the interpolation method for the traditional MC (Marching Cubes) algorithm being not applicable to the meteorological data, and the connection method having ambiguity problem, the improvement method …
Research Of Visualization Of Road Guide Sign Panel Based On Combination Of Guiding Information, Zhongming Niu, Huang Min, Yuan Yuan, Li Min
Research Of Visualization Of Road Guide Sign Panel Based On Combination Of Guiding Information, Zhongming Niu, Huang Min, Yuan Yuan, Li Min
Journal of System Simulation
Abstract: In order to realize the intelligent management of road guide signs, a method of visualization of road guide sign panel based on the flexible combination of guiding information was proposed. As a consequence of analysis for structures of guide sign panel, the message on the guide sign panel was decomposed into guiding information, and then visualization function was proposed. The panel style was determined by the physical and logical topology of guiding intersection dynamically with the help of guide sign system database. Then the composition of geography information and guiding information was utilized in the process of visualization …
Monitoring Information Visualization For High-Filling Loess Project, Liping Zheng, Chen Wei, Ting Liao, Lu Chang
Monitoring Information Visualization For High-Filling Loess Project, Liping Zheng, Chen Wei, Ting Liao, Lu Chang
Journal of System Simulation
Abstract: The construction of high-filled loess project facessome engineering and technical challenges,such as large and complex earth excavation and earth backfilling operations. According to this situation, this paper presents a dynamic visualization methods for high-filled project based on 3D GIS. By establishing the model of high-filled loess, comparative analysis and visual analysis, dynamic simulation of high-filled loess project, visualization and analysis of Dig-Fill process and monitoring information arerealized. The results show that this visualization method can directly and accurately display the construction process, help decision makers master construction information and process.
Visualization Of Tropical Cyclones Based On Digital Earth, Shuoben Bi, Yucheng Gong, Mingyue Lu, Zhou Hao, Tang Zhi
Visualization Of Tropical Cyclones Based On Digital Earth, Shuoben Bi, Yucheng Gong, Mingyue Lu, Zhou Hao, Tang Zhi
Journal of System Simulation
Abstract: Tropical cyclones are often accompanied by heavy rains, storm surges and so on, which have serious impact on the southeast coast of China. Visualization of tropical cyclones can directly demonstrate its motion state, occurrence process and internal structure, and support the research and prediction on it. This paper builds digital earth platform based on Cesium(an open source library),introduces the system architecture, verificates the applicability of point cloud method to the visualization of cloud field data, proposes an improved wind field visualization method based on particle tracking, with includes the calculation of wind field particle properties, the drawing of wind …