SOFTWARE DEVELOPMENT FOR RENDERING THREE-DIMENSIONAL SURFACES IN A WEB BROWSER

2022 ◽  
pp. 13-19
Author(s):  
К.Г. Резников ◽  
С.Н. Медведев
Keyword(s):  
Ray Tracing ◽  
Web Application ◽  
Web Applications ◽  
Three Dimensional ◽  
Optimal Solution ◽  
Web Browser ◽  
Dynamic Surface ◽  
Polygonal Mesh ◽  
The Web ◽  
3D Surfaces

Представлена реализация программного обеспечения для построения трехмерных поверхностей с использованием трассировки лучей, выполняемого в веб-браузере персонального компьютера или смартфона. Подход веб-приложений стал широко применим в последние годы из-за развития сети Интернет. Современные веб-браузеры имеют достаточную вычислительную мощность для реализации сложных веб-приложений, а не ограничиваются только веб-сайтами. В процессе разработки были изучены различные методы построения поверхностей и методы визуализации, чтобы подобрать наиболее оптимальные для реализации веб-приложения. Были проанализированы и представлены базовые способы создания трехмерных поверхностей. Выделены ключевые различия каркасного и полигонального способа задания поверхности. Рассмотрен ряд моделей с процедурно вычисляемыми поверхностями. Подробно описан кинематический способ образования поверхностей, а также описан разработанный алгоритм для преобразования кинематических моделей в поверхность с использованием полигональной сетки. Подробно описан процесс визуализации и метод трассировки лучей. Продемонстрирован способ работы с видеочипом и распараллеливанию вычислений для оптимизации веб-приложения с помощью библиотеки GPU.js. Представлена структура веб-приложения с описанием главных каталогов проекта. Структура проекта основана на фреймворке Vue.js, благодаря чему функционал веб-приложения позволяет безгранично расширять. Для демонстрации работы веб-приложения представлен пример пошагового задания кинематической поверхности и визуализации на сцене с применением графических эффектов, таких как закраска и освещение, а также представлен пример с визуализацией множества объектов на сцене The article presents the implementation of software for rendering 3D-surfaces using ray tracing, running in a web browser of computers or smartphones. The web application approach has become widespread in recent years due to the development of the Internet. Modern web browsers have enough processing power to run complex web applications and are not limited to just websites. During the development process, various methods for constructing surfaces and visualization methods were analyzed to choose the most optimal solution for web applications. We analyzed and presented basic methods of creating 3D surfaces. We highlighted the key differences between wireframe and polygonal methods of surface definition. We considered several models with dynamic surface computation. We described the kinematic method of surface formation in detail and the developed algorithm for transforming kinematic models into a surface using a polygonal mesh. We described in detail the rendering process and ray tracing method. We demonstrated a way of working with a video chip and parallelizing computations to optimize a web application using the GPU.js library. We presented the structure of a web application with a description of the main project directories. The project structure is based on the Vue.js framework. The framework allows one to endlessly expand the functionality of a web application. The article presents how the web application works and example of step-by-step creation of a kinematic surface and rendering on a scene using graphic effects such as shading and lighting. Also it contains an example of rendering many objects on a scene

Saxon-JS Meets XSpec Unit Testing

2020 ◽  
Author(s):  
Amanda Galtman
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Unit Testing ◽  
High Quality ◽  
Web Browser ◽  
Pros And Cons ◽  
Specific Project ◽  
The Web

Unit testing helps you develop and maintain high quality software, and the XSpec tool provides unit testing capabilities for XSLT transforms. Meanwhile, the Saxon-JS product enables you to create web applications that run XSLT code in a web browser. If you want to implement XSpec tests for a Saxon-JS web application, a key challenge is that XSpec running with Saxon-EE cannot access the web browser, DOM, or JavaScript processor that influences your web application. XSpec does not natively understand the interactive XSLT features of Saxon-JS. This paper describes two approaches for making Saxon-JS and XSpec more compatible with each other: a primary approach that involves substituting for ("mocking") the parts of the Saxon-JS operation that XSpec cannot natively access, and a speculative, alternate approach that involves running XSpec tests directly in the browser using Saxon-JS. We discuss pros and cons of the approaches and why we chose the primary approach for a specific project involving user documentation for a software API.

THE USE OF WEB APPLICATIONS FOR THE SELECTION OF CROP GROWING TECHNOLOGIES

2018 ◽  
Vol 48 (3) ◽  
pp. 84-90 ◽  
Author(s):  
E. A. Lapchenko ◽  
S. P. Isakova ◽  
T. N. Bobrova ◽  
L. A. Kolpakova
Keyword(s):  
Web Application ◽  
Crop Production ◽  
Web Applications ◽  
Weather Forecast ◽  
Technical Institute ◽  
Software Complex ◽  
Agricultural Enterprise ◽  
Weather Situation ◽  
The Web ◽  
Selection Of

It is shown that the application of the Internet technologies is relevant in the selection of crop production technologies and the formation of a rational composition of the machine-and-tractor fl eet taking into account the conditions and production resources of a particular agricultural enterprise. The work gives a short description of the web applications, namely “ExactFarming”, “Agrivi” and “AgCommand” that provide a possibility to select technologies and technical means of soil treatment, and their functions. “ExactFarming” allows to collect and store information about temperature, precipitation and weather forecast in certain areas, keep records of information about crops and make technological maps using expert templates. “Agrivi” allows to store and provide access to weather information in the fi elds with certain crops. It has algorithms to detect and make warnings about risks related to diseases and pests, as well as provides economic calculations of crop profi tability and crop planning. “AgCommand” allows to track the position of machinery and equipment in the fi elds and provides data on the weather situation in order to plan the use of agricultural machinery in the fi elds. The web applications presented hereabove do not show relation between the technologies applied and agro-climatic features of the farm location zone. They do not take into account the phytosanitary conditions in the previous years, or the relief and contour of the fi elds while drawing up technological maps or selecting the machine-and-tractor fl eet. Siberian Physical-Technical Institute of Agrarian Problems of Siberian Federal Scientifi c Center of AgroBioTechnologies of the Russian Academy of Sciences developed a software complex PIKAT for supporting machine agrotechnologies for production of spring wheat grain at an agricultural enterprise, on the basis of which there is a plan to develop a web application that will consider all the main factors limiting the yield of cultivated crops.

scholarly journals A Sign of Things to Come: Predicting the Perception of Above-the-Fold Time in Web Browsing

2021 ◽  
Vol 13 (2) ◽  
pp. 50
Author(s):  
Hamed Z. Jahromi ◽  
Declan Delaney ◽  
Andrew Hines
Keyword(s):  
Web Application ◽  
Web Applications ◽  
State Of The Art ◽  
Influencing Factor ◽  
The State ◽  
Experimental Result ◽  
Web Page ◽  
To Come ◽  
Web Quality ◽  
The Web

Content is a key influencing factor in Web Quality of Experience (QoE) estimation. A web user’s satisfaction can be influenced by how long it takes to render and visualize the visible parts of the web page in the browser. This is referred to as the Above-the-fold (ATF) time. SpeedIndex (SI) has been widely used to estimate perceived web page loading speed of ATF content and a proxy metric for Web QoE estimation. Web application developers have been actively introducing innovative interactive features, such as animated and multimedia content, aiming to capture the users’ attention and improve the functionality and utility of the web applications. However, the literature shows that, for the websites with animated content, the estimated ATF time using the state-of-the-art metrics may not accurately match completed ATF time as perceived by users. This study introduces a new metric, Plausibly Complete Time (PCT), that estimates ATF time for a user’s perception of websites with and without animations. PCT can be integrated with SI and web QoE models. The accuracy of the proposed metric is evaluated based on two publicly available datasets. The proposed metric holds a high positive Spearman’s correlation (rs=0.89) with the Perceived ATF reported by the users for websites with and without animated content. This study demonstrates that using PCT as a KPI in QoE estimation models can improve the robustness of QoE estimation in comparison to using the state-of-the-art ATF time metric. Furthermore, experimental result showed that the estimation of SI using PCT improves the robustness of SI for websites with animated content. The PCT estimation allows web application designers to identify where poor design has significantly increased ATF time and refactor their implementation before it impacts end-user experience.

Task Modelling for the Web (Aufgabenmodellierung für interaktive Webanwendungen)

i-com ◽  
2008 ◽  
Vol 6 (3/2007) ◽  
pp. 23-29 ◽  
Author(s):  
Birgit Bomsdorf
Keyword(s):  
Task Performance ◽  
Web Application ◽  
Development Process ◽  
Web Applications ◽  
Web Engineering ◽  
Time Usage ◽  
Build Time ◽  
Object Models ◽  
The Web ◽  
Modelling Approach

SummaryTask modelling has entered the development process of web applications, strengthening the usage-centred view within the early steps in Web-Engineering (WE). In current approaches, however, this view is not kept up during subsequent activities to the same degree as this is the case in the field of Human-Computer-Interaction (HCI). The modelling approach presented in this contribution combines models as known from WE with models used in HCI to change this situation. Basically the WE-HCI-integration is supported by combining task and object models as known from HCI with conceptual modelling known from WE. In this paper, the main focus is on the WebTaskModel, a task model adapted to web application concerns, and its contribution towards a task-related web user interface. The main difference to existing task models is the build-time and run-time usage of a generic task lifecycle. Hereby the description of exceptions and erroneous situations during task performance (caused by, e.g., the stateless protocol or Browser interaction) is enabled and at the same time clearly separated from the flow of correct action.

scholarly journals SPEECH INTERACTIVE WEB APPLICATION SERVICES

2016 ◽  
pp. 14-16
Author(s):  
DHANASHREE TAWARE ◽  
NAMRATA ATTKARE ◽  
DIVYA SINGH
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Current System ◽  
Disabled People ◽  
The World ◽  
The Disabled ◽  
Speech Interaction ◽  
The Web

As we know internet has become a very important factor in our day today life. It is a wide media for communication and exchange of ideas for people staying in any nook and corner of the world. We have proposed a system in which we are developing a speech interactive web application services. Our main aim is to provide these services to the special ones who are unable to make use of the current system so efficiently. In our proposed work we are mainly focusing on the WEB APPLICATIONS. Many a times the disabled people are unable to access internet, for them this system will help to download news, or even access their mails through speech. Our proposed system mainly deals with the ability to handle web applications along with the O.S, mouse and keyboard control through speech, so that they can be used by persons without the use of the hands to develop an interface between the computer and the user. In our proposal we have used SAPI .It provides commands to the main central application which is handled by the GUI. Thus we look forward to develop web application through speech interaction.

scholarly journals Purwarupa Framework Aplikasi Desktop Menggunakan Teknologi Web

2015 ◽  
Vol 9 (1) ◽  
pp. 23
Author(s):  
Firmansyah Adiputra ◽  
Khabib Mustofa
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Application Framework ◽  
Web Browser ◽  
Web Technologies ◽  
Desktop Application ◽  
New Type

AbstrakAplikasi desktop adalah aplikasi yang berjalan lokal dalam lingkungan desktop dan hanya dapat diakses oleh pengguna desktop. Ini berbeda dengan aplikasi web yang dapat diakses dari manapun melalui jaringan. Namun tidak seperti halnya aplikasi desktop, aplikasi web yang berjalan di atas web browser tidak dapat berintegrasi dengan aplikasi desktop yang berjalan pada sisi klien.Dalam penelitian ini dibangun purwarupa framework yang diberi nama HAF (Hybrid Application Framework). HAF digunakan untuk mengembangkan dan mengeksekusi jenis aplikasi desktop baru yang diberi nama HyApp (Hybrid Application). Melalui HAF, HyApp dibangun menggunakan teknologi web dan dapat diakses secara lokal maupun melalui jaringan. Saat diakses secara lokal, walaupun dikembangkan dengan teknologi web, HyApp dapat berkomunikasi dengan aplikasi desktop lainnya. Selain itu, melalui API yang disediakan oleh HAF, HyApp akan dapat menerapkan perilaku yang berbeda berdasarkan modus pengaksesan yang dilakukannya. Kata kunci—framework, aplikasi desktop, aplikasi web    AbstractDesktop application is an application that runs locally in a desktop environment and can be accessed only by desktop users. It differs from web application which can be accessed from anywhere through networks. But unlike desktop applications, web applications cannot integrate nicely with desktop applications from where it is accessed.This research developes a prototype of framework which is named HAF (Hybrid Application Framework). HAF is used for developing and executing a new type of desktop application, named HyApp (Hybrid Application). Through HAF, HyApp is built using web technologies and can be accessed either locally or from networks. When accessed locally, even though it is built using web technologies, it still can communicate with other desktop applications. Also by using APIs provided by HAF, HyApp is capable to behave differently based on whether it is accessed locally or remotely. Keywords—framework, desktop applications, web applications

scholarly journals Secure ASP.NET Web Application by Discovering Broken Authentication and Session Management Vulnerabilities

2017 ◽  
Vol 10 (2) ◽  
pp. 359-363
Author(s):  
Rupal Sharma ◽  
Ravi Sheth
Keyword(s):  
Web Service ◽  
Web Application ◽  
Web Applications ◽  
The Other ◽  
Web Application Security ◽  
Application Security ◽  
Security Vulnerability ◽  
Session Management ◽  
The Given ◽  
The Web

Today, web application security is most significant battlefield between victim, attacker and resource of web service. The owner of web applications can’t see security vulnerability in web application which develops in ASP.NET. This paper explain one algorithm which aim to identify broken authentication and session management vulnerability. The given method of this paper scan the web application files. The created scanner generator relies on studying the source character of the application limited ASP.NET files and the code be beholden files. A program develop for this motive is to bring about a report which describes vulnerabilities types by mentioning the indict name, disclose description and its location. The aim of the paper is to discover the broken authentication and session management vulnerabilities. The indicated algorithm will uphold organization and developer to repair the vulnerabilities and recover from one end to the other security.

Rapid 3D geological modeling to assess and visualize uncertainties in a web application

2021 ◽  
Author(s):  
Daniel Pflieger ◽  
Miguel de la Varga Hormazabal ◽  
Simon Virgo ◽  
Jan von Harten ◽  
Florian Wellmann
Keyword(s):  
Web Application ◽  
High Performance ◽  
Three Dimensional ◽  
Cloud Services ◽  
Management Approach ◽  
Geological Modeling ◽  
Web Browser ◽  
3D Geological Modeling ◽  
State Management ◽  
Wide Range

<p>Three dimensional modeling is a rapidly developing field in geological scientific and commercial applications. The combination of modeling and uncertainty analysis aides in understanding and quantitatively assessing complex subsurface structures. In recent years, many methods have been developed to facilitate this combined analysis, usually either through an extension of existing desktop applications or by making use of Jupyter notebooks as frontends. We evaluate here if modern web browser technology, linked to high-performance cloud services, can also be used for these types of analyses.</p><p>For this purpose, we developed a web application as proof-of-concept with the aim to visualize three dimensional geological models provided by a server. The implementation enables the modification of input parameters with assigned probability distributions. This step enables the generation of randomized realizations of models and the quantification and visualization of propagated uncertainties. The software is implemented using HTML Web Components on the client side and a Python server, providing a RESTful API to the open source geological modeling tool “GemPy”. Encapsulating the main components in custom elements, in combination with a minimalistic state management approach and a template parser, allows for high modularity. This enables rapid extendibility of the functionality of the components depending on the user’s needs and an easy integration into existing web platforms.</p><p>Our implementation shows that it is possible to extend and simplify modeling processes by creating an expandable web-based platform for probabilistic modeling, with the aim to increase the usability and to facilitate access to this functionality for a wide range of scientific analyses. The ability to compute models rapidly and with any given device in a web browser makes it flexible to use, and more accessible to a broader range of users.</p>

Morpheus Web Testing: A Tool for Generating Test Cases for Widget Based Web Applications

2021 ◽  
Author(s):  
Romulo de Almeida Neves ◽  
Willian Massami Watanabe ◽  
Rafael Oliveira
Keyword(s):  
User Interfaces ◽  
Web Application ◽  
Web Applications ◽  
Test Cases ◽  
Code Coverage ◽  
Web Testing ◽  
The Cost ◽  
Software Lifecycle ◽  
The Web

Context: Widgets are reusable User Interfaces (UIs) components frequently delivered in Web applications.In the web application, widgets implement different interaction scenarios, such as buttons, menus, and text input.Problem: Tests are performed manually, so the cost associated with preparing and executing test cases is high.Objective: Automate the process of generating functional test cases for web applications, using intermediate artifacts of the web development process that structure widgets in the web application. The goal of this process is to ensure the quality of the software, reduce overall software lifecycle time and the costs associated with tests.Method:We elaborated a test generation strategy and implemented this strategy in a tool, Morpheus Web Testing. Morpheus Web Testing extracts widget information from Java Server Faces artifacts to generate test cases for JSF web applications. We conducted a case study for comparing Morpheus Web Testing with a state of the art tool (CrawlJax).Results: The results indicate evidence that the approach Morpheus Web Testing managed to reach greater code coverage compared to a CrawlJax.Conclusion: The achieved coverage values represent evidence that the results obtained from the proposed approach contribute to the process of automated test software engineering in the industry.

SQL Injection Attacks Countermeasures

2012 ◽  
pp. 194-213
Author(s):  
Kasra Amirtahmasebi ◽  
Seyed Reza Jalalinia
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Confidential Information ◽  
Sql Injection ◽  
Unauthorized Access ◽  
Injection Attacks ◽  
Prevention Techniques ◽  
Sql Injection Attack ◽  
Sql Injection Attacks ◽  
The Web

Due to the huge growth in the need for using Web applications worldwide, there have been huge efforts from programmers to develop and implement new Web applications to be used by companies. Since a number of these applications lack proper security considerations, malicious users will be able to gain unauthorized access to confidential information of organizations. A concept called SQL Injection Attack (SQLIA) is a prevalent method used by attackers to extract the confidential information from organizations’ databases. They work by injecting malicious SQL codes through the web application, and they cause unexpected behavior from the database. There are a number of SQL Injection detection/prevention techniques that must be used in order to prevent unauthorized access to databases.

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