Scientific Visualization最新文献_第2页

Mathematical Modeling and Visualization of a Complex Stress State in Case of a Fracture of the Femoral Diaphysis 股骨干骺端骨折时复杂应力状态的数学建模与可视化

Scientific Visualization Pub Date : 2024-04-01 DOI: 10.26583/sv.16.1.10

K. Krupin, M. Kislov, V.I. Bahmetev, E.M. Kildyushov

引用次数: 0

Modifications of Classical Surface Reconstruction Algorithms for Visualization of a Function Defined on a Rectangular Grid 修改经典曲面重构算法，实现矩形网格定义函数的可视化

Scientific Visualization Pub Date : 2024-04-01 DOI: 10.26583/sv.16.1.01

N. V. Munts, S. Kumkov

{"title":"Modifications of Classical Surface Reconstruction Algorithms for Visualization of a Function Defined on a Rectangular Grid","authors":"N. V. Munts, S. Kumkov","doi":"10.26583/sv.16.1.01","DOIUrl":"https://doi.org/10.26583/sv.16.1.01","url":null,"abstract":"In the paper, modifications of visualization algorithms for real-valued functions of two and three arguments given on a rectangular or parallelepipedal grid are considered. In the case of two arguments, the graph of the function is a surface embedded into the three-dimensional space. The majority of scientific visualization systems offer visualization procedures for such surfaces, but they construct them under the assumption that the functions are continuous. In the paper, for the case of a discontinuous function, a modification of this algorithm is proposed. In addition, the algorithm removes “plateaus” that occur after cutting the function at some level (in order to remove too large values).\u0000 Visualization of a function of three arguments implies showing its level sets, that is, regions of the space of arguments where the magnitudes of the function do not exceed a certain value. In the case of a grid function, such sets are “voxel” sets, that is, they are composed of grid cells. With that, some smoothing of the surface of such sets is required, which is carried out by the Marching Cubes algorithm and algorithms of the Laplacian family. A modification of the Marching Cubes algorithm is proposed, which preserves the symmetry of the set surface with respect to the coordinate planes, axes, or some point, if the rendered set has such a symmetry.","PeriodicalId":38328,"journal":{"name":"Scientific Visualization","volume":"293 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140779568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Visualization in Data Reconstruction Tasks 数据重建任务中的可视化

Scientific Visualization Pub Date : 2024-04-01 DOI: 10.26583/sv.16.1.06

A. Shklyar, A. Zakharova, E. Vekhter

{"title":"Visualization in Data Reconstruction Tasks","authors":"A. Shklyar, A. Zakharova, E. Vekhter","doi":"10.26583/sv.16.1.06","DOIUrl":"https://doi.org/10.26583/sv.16.1.06","url":null,"abstract":"Many application tasks of multidimensional data analysis which describe the state of real physical or other systems face with difficulties. This is a consequence of the low-quality source data, including missing values, the probability of errors or unreliability of measurements. Incomplete data can become an obstacle for research using many modern informational methods. The current work examines the potential and capabilities of visual analytics tools for preliminary preparation, correction or complete analysis of primary data volumes.\u0000 A promising area of application of the approach discussed in the study is the targeted use of visualization capabilities as a data analysis tool. The implementation of specialized visual metaphors is used to solve problems of processing and interpreting data, the sources of which are cyberphysical systems of different complexity levels. Such systems operate in an autonomous or partially controlled mode. A characteristic feature of these systems is the presence of a large number of sensors that collect various types of data. Such data differ in the capacity of the corresponding information channels, their speed and reliability. Examples of such cyberphysical systems are unmanned aerial vehicles (UAVs), robotic stations, and multimodal monitoring systems. These systems can function in conditions where it is difficult to obtain objective observation experience (deep-sea robots). The effective use of data collected by cyberphysical monitoring systems is a condition for solving a large number of application and research tasks.","PeriodicalId":38328,"journal":{"name":"Scientific Visualization","volume":"159 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140766173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Visualization of Flow of a Viscous Incompressible Fluid Corresponding to Exact Solutions of the Navier-Stokes Equations 与纳维-斯托克斯方程精确解相对应的粘性不可压缩流体的可视化流动

Scientific Visualization Pub Date : 2024-04-01 DOI: 10.26583/sv.16.1.05

V. A. Galkin, A. Dubovik, D.A. Morgun

{"title":"Visualization of Flow of a Viscous Incompressible Fluid Corresponding to Exact Solutions of the Navier-Stokes Equations","authors":"V. A. Galkin, A. Dubovik, D.A. Morgun","doi":"10.26583/sv.16.1.05","DOIUrl":"https://doi.org/10.26583/sv.16.1.05","url":null,"abstract":"The work visualizes flows corresponding to the exact solutions of the system of hydrodynamic equations previously published by the authors, consisting of the vector Navier-Stokes equation and the law of conservation of mass for an incompressible fluid. This work uses the MathGL library for the C/C++ language and ParaView for scientific visualization of the results of numerical and analytical calculations. Without the use of such means, it would be impossible to see that the fluid flow is stratified into invariant subregions, and the trajectories of motion of fluid particles are wound on torus-shaped surfaces.\u0000 Most of the scientific works on the study of hydrodynamic equations cover the results of calculations and do not address the questions of the existence of exact analytical solutions. At the same time, these calculations are performed with a specially selected set of fitting parameters unique to the equipment used and the computer software used. Questions about trust in the results of such calculations, their verification with exact solutions and the creation of a bank of test examples of applied problems in order to certify the applicability of the calculation results in practice become relevant.","PeriodicalId":38328,"journal":{"name":"Scientific Visualization","volume":"879 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140774586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Possibility of Using the Gershberg-Papoulis Method in the Problem of Phase Structure Reconstructing from Low-angle Hilbertograms 在从低角度希尔伯特图重建相位结构问题中使用格什伯格-帕普利斯方法的可能性

Scientific Visualization Pub Date : 2024-04-01 DOI: 10.26583/sv.16.1.02

E. Arbuzov, V. Arbuzov, Yu. N. Dubnishchev, O. Zolotukhina, M. Lapikov, V. Lukashov

引用次数: 0

Visualization of Deformation and Stress Waves in Wooden Solid and Glued Elements of Building Structures. 建筑结构木质实心构件和胶合构件变形和应力波的可视化。

Scientific Visualization Pub Date : 2024-04-01 DOI: 10.26583/sv.16.1.08

P.G. Romanov, P. Sivtsev

引用次数: 0

Building Depth Maps Using an Active-Pulse Television Measuring System in Real Time Domain 利用主动脉冲电视实时测量系统绘制深度图

Scientific Visualization Pub Date : 2024-04-01 DOI: 10.26583/sv.16.1.04

I.D. Musikhin, V. V. Kapustin, A. Tislenko, A. Movchan, S.A. Zabuga

引用次数: 0

Structure Visualization of 4-DASPI–Cucurbituril Supramolecular Complex to Predict the Solvatochromic Shift of Absorption Spectrum 通过 4-DASPI-Cucurbituril 超分子复合物的结构可视化预测吸收光谱的溶色偏移

Scientific Visualization Pub Date : 2024-04-01 DOI: 10.26583/sv.16.1.03

A. Stepko, P. Lebedev-Stepanov

引用次数: 0

Functional-Voxel Modeling of The Cauchy Problem 考奇问题的功能体素建模

Scientific Visualization Pub Date : 2024-04-01 DOI: 10.26583/sv.16.1.09

A. Tolok, N. Tolok

{"title":"Functional-Voxel Modeling of The Cauchy Problem","authors":"A. Tolok, N. Tolok","doi":"10.26583/sv.16.1.09","DOIUrl":"https://doi.org/10.26583/sv.16.1.09","url":null,"abstract":"The paper considers an approach to solving the Cauchy problem for an example of a partial differential equation of the first order under given boundary conditions by the functional voxel method (FVM). The proposed approach uses the accumulated experience of differentiation and integration into FV- modeling to obtain local geometric characteristics of triangular elements on the surface of the resulting function in the process of linear approximation. The analytical solution of a simple example of a partial differential equation of the first order for the Cauchy problem is analyzed. Based on the obtained analytical solution, FV-model is constructed for further comparison with the results obtained by means of FV-modeling. The algorithm for solving the example is described by means of FV-modeling. A visual and numerical comparative analysis is carried out to determine the difference between the obtained results of FV-modeling and the accepted standard. The main difference between solving such a problem by numerical methods is the results obtained. In numerical methods, the result is the value of the function at the approximation nodes, and the FV-model at the nodes contains local geometric characteristics (gradient components in a space enlarged by one), which makes it possible to obtain a nodal local function of an implicit form, as well as a differential local function of an explicit form. The proposed graphical representation of the function area on a computer provides not only visual visibility, but also compact storage compared to a traditional array of real numbers.","PeriodicalId":38328,"journal":{"name":"Scientific Visualization","volume":"311 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140776558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Halocline Internal Wave Attractors Visualization Halocline 内波吸引器可视化

Scientific Visualization Pub Date : 2024-04-01 DOI: 10.26583/sv.16.1.07

S. Elistratov

引用次数: 0