scholarly journals 3D WebGIS: From Visualization to Analysis. An Efficient Browser-Based 3D Line-of-Sight Analysis

2018 ◽  
Vol 7 (7) ◽  
pp. 279 ◽  
Author(s):  
Michael Auer ◽  
Alexander Zipf
Keyword(s):  
3D Visualization ◽  
Heritage Management ◽  
Line Of Sight ◽  
3D Analysis ◽  
Web Based ◽  
Web Technologies ◽  
Static Data ◽  
Wide Range ◽  
Gis Data ◽  
Client Side

3D WebGIS systems have been mentioned in the literature almost since the beginning of the graphical web era in the late 1990s. The potential use of 3D WebGIS is linked to a wide range of scientific and application domains, such as planning, controlling, tracking or simulation in crisis management, military mission planning, urban information systems, energy facilities or cultural heritage management, just to name a few. Nevertheless, many applications or research prototypes entitled as 3D WebGIS or similar are mainly about 3D visualization of GIS data or the visualization of analysis results, rather than about performing the 3D analysis itself online. This research paper aims to step forward into the direction of web-based 3D geospatial analysis. It describes how to overcome speed and memory restrictions in web-based data management by adapting optimization strategies, developed earlier for web-based 3D visualization. These are applied in a holistic way in the context of a fully 3D line-of-sight computation over several layers with split (tiled) and unsplit (static) data sources. Different optimization approaches are combined and evaluated to enable an efficient client side analysis and a real 3D WebGIS functionality using new web technologies such as HTML5 and WebGL.

Developing a 3D Game Design Authoring Package to Assist Students’ Visualization Process in Design Thinking

2013 ◽  
Vol 11 (4) ◽  
pp. 1-16 ◽  
Author(s):  
Ming-Shiou Kuo ◽  
Tsung-Yen Chuang
Keyword(s):  
3D Modeling ◽  
Game Design ◽  
3D Model ◽  
Design Thinking ◽  
3D Visualization ◽  
Web Based ◽  
Web Technologies ◽  
3D Game ◽  
Visualization Process ◽  
Game Designer

The teaching of 3D digital game design requires the development of students’ meta-skills, from story creativity to 3D model construction, and even the visualization process in design thinking. The characteristics a good game designer should possess have been identified as including redesign things, creativity thinking and the ability to visualize ideas from imagination. Therefore, 3D visualization is a key skill in this context. To help students fully focus on game design rather than on complicated 3D modeling or animation skills, this study developed an authoring package that is integrated with Google 3D Warehouse, SketchUp, and a web-based 3D multi-user platform: 3D Cyber Worlds. The proposed game design authoring package was used with 53 college students for one semester, while a total of 108 students were involved in the overall study. The results indicate that the package achieved its aim of in assisting students in the game design process, including that of 3D modeling, and is feasible for future development using advance web technologies. Examples of the students’ game design projects and feedback on the use of this authoring package are also presented and discussed.

scholarly journals Web-based reference databases and subject gateways to locate current research information in agricultural and food sciences - a Finnish perspective

2000 ◽  
Vol 9 (1) ◽  
pp. 89-94
Author(s):  
M.-L. AALTONEN ◽  
R. HAGELIN
Keyword(s):  
Food Science ◽  
Research Information ◽  
Electronic Journals ◽  
Bibliographic Reference ◽  
Web Based ◽  
Web Technologies ◽  
Wide Range ◽  
The World ◽  
Reference Databases ◽  
Better Than

Databases and the World Wide Web have overwhelmed the information market. Bibliographic reference databases with links to electronic journals that publish full text manuscripts provide information seekers with a wide range of fast and convienient searching methods. Increasingly organisations present their activities on the WWW which allows them to disseminate updated information about their experts, publications and on-going research projects better than was possible previously. The web technology has a major advantage over printed products since it allows end-users to search, browse and print the information in different formats according to their own specific needs. Agricultural and food science papers published in Finland have been documented annually in this journal for a number of years, but the advent of web technologies have made this much less valuable.;

scholarly journals VisHive: Supporting web-based visualization through ad hoc computational clusters of mobile devices

2018 ◽  
Vol 18 (2) ◽  
pp. 195-210 ◽  
Author(s):  
Zhe Cui ◽  
Shivalik Sen ◽  
Sriram Karthik Badam ◽  
Niklas Elmqvist
Keyword(s):  
Ad Hoc ◽  
Spatial Clustering ◽  
Principal Component ◽  
Text Analytics ◽  
Web Based ◽  
Web Technologies ◽  
Multiple Devices ◽  
Noise Clustering ◽  
Client Side ◽  
Visual Interface

Current web-based visualizations are designed for single computers and cannot make use of additional devices on the client side, even if today’s users often have access to several, such as a tablet, a smartphone, and a smartwatch. We present a framework for ad hoc computational clusters that leverage these local devices for visualization computations. Furthermore, we present an instantiating JavaScript toolkit called VisHive for constructing web-based visualization applications that can transparently connect multiple devices—called cells—into such ad hoc clusters—called a hive—for local computation. Hives are formed either using a matchmaking service or through manual configuration. Cells are organized into a master–slave architecture, where the master provides the visual interface to the user and controls the slaves and the slaves perform computation. VisHive is built entirely using current web technologies, runs in the native browser of each cell, and requires no specific software to be downloaded on the involved devices. We demonstrate VisHive using four distributed examples: a text analytics visualization, a database query for exploratory visualization, a density-based spatial clustering of applications with noise clustering running on multiple nodes, and a principal component analysis implementation.

A Web-Based Geoinformation System for Heritage Management and Geovisualisation in Cantón Nabón (Ecuador)

2021 ◽  
Vol 11 (1) ◽  
pp. 4
Author(s):  
Angel Collado ◽  
Gaspar Mora-Navarro ◽  
Verónica Heras ◽  
José Luis Lerma
Keyword(s):  
Integrated System ◽  
Heritage Management ◽  
Human Beings ◽  
Web Based ◽  
Cultural Heritage Management ◽  
Preventive Conservation ◽  
Web Technologies ◽  
Ancient Times ◽  
The Right

Since ancient times, human beings have been interested in knowing their environment in order to make the right decisions in territorial management. The spatial component is a feature of great importance in the assets that surround us. Heritage geoinformation is a convenient and effective way for management, protection and safeguarding of cultural and natural heritage. For optimal compliance, it is nowadays indispensable to rely on the use of new web technologies and geomatics knowledge that allow the documentation, visualisation, monitoring and management of heritage. Therefore, the main objective of this article is to develop a web-based cultural heritage management system in Cantón Nabón, Ecuador, as a case study. The system, consisting of a web-based geoportal accessible to the whole society, will allow consulting the geolocalised heritage information of the study area on a virtual map, as well as 3D geovisualisation in an interactive web viewer. The integrated system, once implemented, will take into consideration the preventive conservation cycle in the heritage field, highlighting, in Spanish, the creation of the heritage data models according to ISO21127:2014.

Research and Development of Online Examination System

2013 ◽  
Vol 756-759 ◽  
pp. 1110-1113
Author(s):  
Qiao Fang Zhao ◽  
Yong Fei Li
Keyword(s):  
Research And Development ◽  
Examination System ◽  
Web Based ◽  
Web Technologies ◽  
Server Side ◽  
Online Examination ◽  
Programming Techniques ◽  
Client Side

Examination System was necessary to separate teaching and testing. A web-based Examination System was developed with Java Web technologies. The system provided the functions, including question management, paper generation and test online. Also the combination of client-side programming and server-side programming techniques were used and analyzed.

Principles of ensuring efficient and safe operation of the GTS of the hydromelioration complex

2020 ◽  
Vol 0 (2) ◽  
pp. 5-12
Author(s):  
Valentin Zhezmer ◽  
Andrey Matveev
Keyword(s):  
System Development ◽  
Automated System ◽  
Hydraulic Structures ◽  
Web Interface ◽  
Web Based ◽  
Web Technologies ◽  
Wide Range ◽  
Role Based ◽  
Web Based System ◽  
The Web

The issues arising during the operation of the GTS of the hydromelioration complex are considered. The level of reliability and degree of safety of the CTA are assessed by comparing the actual indicators of the state of the CTA (monitoring results) with the safety criteria. The comparison of the main parameters of the GTS with the safety criteria is made during the declaration. The interval between the drafting of the Safety Declaration for Hydraulic Structures is five years. Such an interval is a periodic certification rather than monitoring. Exists of the tеhere is a need to create an automated system for monitoring the GTS. Such a system should be multi-level, with role-based access, and be a decision support system. Development of the system is possible using modern web technologies. At each step of the hierarchy, it is possible to solve problems of the appropriate level of complexity. The web system consists of a web interface that provides the ability to store and process the necessary information. The web-based system allows remote users to connect via the Internet. The system is based on the freely available software MySQL 5.5. In the database, the tables type used is InnoDB. The database is based on intelligence on hydraulic structures, similar to the information provided by the owner when they are certified. When monitoring the GTS, the complexes of instrumentation installed on the constructions are used. Information gathering can be done both manually and automated, through measuringdevices. The complex of technical means should use modern unified means of mass production with a service life of at least 10 years. Sensors certified in Russia should be used. Information obtained as a result of the functioning of an automated system for monitoring the GTS can be used to solve a wide range of production tasks.

scholarly journals LSIVIEWER 2.0 – A CLIENT-ORIENTED ONLINE VISUALIZATION TOOL FOR GEOSPATIAL VECTOR DATA

2017 ◽  
Vol XLII-2/W7 ◽  
pp. 107-113
Author(s):  
K. Manikanta ◽  
K.S. Rajan
Keyword(s):  
Geospatial Data ◽  
Web Gis ◽  
Vector Data ◽  
Web Based ◽  
Gis Application ◽  
Web Technologies ◽  
Server Side ◽  
Computing Paradigm ◽  
Visualization Systems ◽  
Client Side

Geospatial data visualization systems have been predominantly through applications that are installed and run in a desktop environment. Over the last decade, with the advent of web technologies and its adoption by Geospatial community, the server-client model for data handling, data rendering and visualization respectively has been the most prevalent approach in Web-GIS. While the client devices have become functionally more powerful over the recent years, the above model has largely ignored it and is still in a mode of serverdominant computing paradigm. In this paper, an attempt has been made to develop and demonstrate LSIViewer – a simple, easy-to-use and robust online geospatial data visualisation system for the user’s own data that harness the client’s capabilities for data rendering and user-interactive styling, with a reduced load on the server. The developed system can support multiple geospatial vector formats and can be integrated with other web-based systems like WMS, WFS, etc. The technology stack used to build this system is Node.js on the server side and HTML5 Canvas and JavaScript on the client side. Various tests run on a range of vector datasets, upto 35 MB, showed that the time taken to render the vector data using LSIViewer is comparable to a desktop GIS application, QGIS, over an identical system.

A Web-Based 3D Real Time Oscilloscope Experiment

2011 ◽  
pp. 276-289
Author(s):  
Chi Chung Ko ◽  
Chang Dong Cheng
Keyword(s):  
Real Time ◽  
3D Visualization ◽  
Circuit Board ◽  
Real Time Control ◽  
Java 3D ◽  
Web Based ◽  
Time Control ◽  
National University ◽  
Visualization Technology ◽  
Client Side

In this final chapter, we will describe the use of Java 3D as a visualization technology in the development of a Web-based 3D real time oscilloscope experiment. Developed and launched under a research project at the National University of Singapore, this application enables students to carry out a physical electronic experiment that involves the use of an actual oscilloscope, a signal generator and a circuit board remotely through the Internet (Ko 2000, and 2001). Specifically, this system addresses 3D visualization schemes on the client side (Bund, 2005, Hobona, 2006, Liang, 2006, Ueda, 2006, Wang, 2006), as well as Web-based real time control and 3D-based monitoring between the client and server (Nielsen, 2006; Qin, Harrison, West, & Wright, 2004). The control of the various instruments are carried out in real time through the use of a Java 3D based interface on the client side, with the results of the experiment being also reflected or displayed appropriately on 3D instruments in the same interface.

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