visualization

Запропоновано вдосконалений метод візуалізації 3D-об’єктів, що мають властивість відображення на своїх поверхнях навколишнього середовища. Розглянуто процес візуалізації відбиття світла від поверхонь 3D-об’єктів за законом Ламберта та процес візуалізації відображення навколишнього середовища на поверхнях 3D-об’єктів із використанням кубічних карт. Відкоректовано вектор відбиття під час його обчислення в процесі візуалізації відбиття навколишнього середовища. Розроблено процес пост - обробки кубічних карт. Комплексне врахування цих процесів забезпечує покращення реалістичності зображень.

The article proposes a method for visualizing multidimensional random process realizations using the example of the concentrations of harmful gases emitted into the atmosphere from a thermal power plant. The method is based on the transformation of gas concentration values in one point of multidimensional space at the same time into a two-dimensional curve, which is described by the sum of products of normalized concentrations by orthogonal Legendre functions of the corresponding order.

In order to increase the attractiveness of public transport for urban residents, a software product has been created for transport companies that, by visualizing passenger traffic, helps to improve the quality of public transport services provided within the city. The paper analyses existing and current scientific developments and literature sources, which show the advantages and disadvantages of a large number of different algorithms and methods, approaches, and methods for solving problems of 2D- visualization of passenger flows on public routes.

The concept of visualization of the results of expert evaluation of the quality of electronic learning resources is considered. Much attention is paid to petal diagrams and their use in the visualization process. The algorithm for calculating the area of the petal diagram and the influence of the order of parameters on the area of each petal are described. The criteria for assessing the quality of e-learning resources and their weights for each of the experts are presented. The roles of experts with weighting factors are shown.

Due to large-scale changes in the economy in the world and in Ukraine in particular, there has recently been a significant increase in interest in the problems of investment theory. An example is the intensification in recent years of the purchase of shares of large international companies and cryptocurrencies and, according to the rapid growth of their values. It is known that as a special case, the theory of investment considers the task of optimizing investment portfolios.

The article is about the fact that in modern mass-media photos more and more often become not only a visual background to informative, analytical or journalistic text, but as headlines attract attention of audience. Such kind of approach increases quality requirements of illustrative material in modern periodicals because popularity of texts which are published in newspapers and magazines depends on that. Some separate photos might become a kind of visual factage which does not need any verbal explanation. 

The article describes the features of the process of displaying data presented in matrix form on the plane. Analysis of known methods of data visualization that showed a lack of mechanisms from the correct data displays presented by matrices with the provision of visualization criteria was conducted. Considering this fact, the following methods were proposed: the display of ID tags; modelling between vertex distance and the location of tops in terms of ease of perception and evaluation.