Pinpointing Watershed Pollution on a Virtual Globe

2014 ◽  
Vol 081 (03) ◽  
Author(s):  
Cheston Saunders ◽  
Amy Taylor
Keyword(s):  
Virtual Globe

scholarly journals An open source virtual globe rendering engine for 3D applications: NASA World Wind

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Francesco Pirotti ◽  
Maria Antonia Brovelli ◽  
Gabriele Prestifilippo ◽  
Giorgio Zamboni ◽  
Candan Eylul Kilsedar ◽  
...  
Keyword(s):  
Open Source ◽  
Virtual Globe ◽  
3D Applications ◽  
Rendering Engine

Comparative Study of Stereoscopic Techniques Applied to a Virtual Globe

2013 ◽  
Vol 50 (4) ◽  
pp. 369-375 ◽  
Author(s):  
Jordi Torres ◽  
Maria Ten ◽  
Jesús Zarzoso ◽  
Leonardo Salom ◽  
Rafa Gaitán ◽  
...  
Keyword(s):  
Comparative Study ◽  
Virtual Globe

scholarly journals A Tile-Based Framework with a Spatial-Aware Feature for Easy Access and Efficient Analysis of Marine Remote Sensing Data

2020 ◽  
Vol 12 (12) ◽  
pp. 1932
Author(s):  
Weiwen Ye ◽  
Feng Zhang ◽  
Xianqiang He ◽  
Yan Bai ◽  
Renyi Liu ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Data Storage ◽  
Cloud Storage ◽  
Remote Sensing Data ◽  
Easy Access ◽  
Spatial Awareness ◽  
Online Application ◽  
Virtual Globe ◽  
Product Service ◽  
Global Change Research

Marine remote sensing (MRS) data provide an important tool for advancing global change research. However, the existing product service practices are insufficient for meeting the needs of a full-experience online application. This paper introduces a framework named SatANA, which is unified by a data tiling method with a spatial-aware feature, for integrated and intelligent improvements in visualization, storage and computing. The SatANA framework is supported by a hybrid database storage ideal for the cloud storage of massive MRS data. The raw data are displayed and roamed on a virtual globe through the Internet as tiles, enhancing their spatial awareness, that can be intelligently used for visualization result tuning, data storage preloading and distributed computing optimized indexing. To verify its feasibility and effectiveness, we applied this framework to a platform called SatCO2, which is devoted to providing convenient access to and the efficient utilization of MRS data.

Web-Based Large-Scale 3D-Geovisualisation Using WebGL

2012 ◽  
Vol 1 (3) ◽  
pp. 16-25 ◽  
Author(s):  
Martin Christen ◽  
Stephan Nebiker ◽  
Benjamin Loesch
Keyword(s):  
Open Source ◽  
Broad Spectrum ◽  
Large Scale ◽  
Interactive Visualization ◽  
Web Browsers ◽  
Web Based ◽  
Virtual Globe ◽  
Open Source Framework ◽  
The Creation

In this paper, the authors present the OpenWebGlobe project (http://www.openwebglobe.org). The authors also discuss the OpenWebGlobe SDK. OpenWebGlobe SDK is an open source framework for creating massive 3D virtual globe environments and interactively exploiting them in web browsers using HTML5 and WebGL, allowing for the creation of large scale virtual 3D globes with detailed contents and their interactive visualization directly within a broad spectrum of Web browsers.

User requirements for geo-collaborative work with spatio-temporal data in a web-based virtual globe environment

2013 ◽  
Vol 44 (6) ◽  
pp. 929-939 ◽  
Author(s):  
Zornitza Yovcheva ◽  
Corné P.J.M. van Elzakker ◽  
Barend Köbben
Keyword(s):  
Collaborative Work ◽  
User Requirements ◽  
Temporal Data ◽  
Web Based ◽  
Virtual Globe ◽  
Spatio Temporal

Smoothly Rendering of Large-Scale Vector Data on Virtual Globe

2014 ◽  
Vol 631-632 ◽  
pp. 516-520
Author(s):  
Chao Yang ◽  
Shui Yan Dai ◽  
Ling Da Wu ◽  
Rong Huan Yu
Keyword(s):  
Real Time ◽  
Large Scale ◽  
Smooth Transition ◽  
Vector Data ◽  
The Real ◽  
Virtual Globe ◽  
Multi Level

The method of view-dependent smoothly rendering of large-scale vector data based on the vector texture on virtual globe is presented. The vector texture is rasterized from the vector data based on view-dependent quadtree LOD. And the vector texture is projected on the top of the terrain. The smooth transition of multi-level texture is realized by adjusting the transparency of texture dynamically based on view range in two processes to avoid texture “popping”. In “IN” process, the texture’s alpha value increases when the view range goes up while In “OUT” process, the texture’s alpha value decreases. the vector texture buffer updating method is used to accelerate the texture fetching based on the least-recently-used algorithm. In the end, the real-time large-scale vector data rendering is implemented on virtual globe. The result shows that this method can real-time render large-scale vector data smoothly.

scholarly journals VISUALIZATION OF VGI DATA THROUGH THE NEW NASA WEB WORLD WIND VIRTUAL GLOBE

2016 ◽  
Vol XLI-B4 ◽  
pp. 205-209 ◽  
Author(s):  
M. A. Brovelli ◽  
C. E. Kilsedar ◽  
G. Zamboni
Keyword(s):  
3D Visualization ◽  
Open Data ◽  
Application Programming Interface ◽  
Ease Of Use ◽  
Java Virtual Machine ◽  
Virtual Globe ◽  
Cross Platform ◽  
Virtual Globes ◽  
Client Side ◽  
Open Data Kit

GeoWeb 2.0, laying the foundations of Volunteered Geographic Information (VGI) systems, has led to platforms where users can contribute to the geographic knowledge that is open to access. Moreover, as a result of the advancements in 3D visualization, virtual globes able to visualize geographic data even on browsers emerged. However the integration of VGI systems and virtual globes has not been fully realized. The study presented aims to visualize volunteered data in 3D, considering also the ease of use aspects for general public, using Free and Open Source Software (FOSS). The new Application Programming Interface (API) of NASA, Web World Wind, written in JavaScript and based on Web Graphics Library (WebGL) is cross-platform and cross-browser, so that the virtual globe created using this API can be accessible through any WebGL supported browser on different operating systems and devices, as a result not requiring any installation or configuration on the client-side, making the collected data more usable to users, which is not the case with the World Wind for Java as installation and configuration of the Java Virtual Machine (JVM) is required. Furthermore, the data collected through various VGI platforms might be in different formats, stored in a traditional relational database or in a NoSQL database. The project developed aims to visualize and query data collected through Open Data Kit (ODK) platform and a cross-platform application, where data is stored in a relational PostgreSQL and NoSQL CouchDB databases respectively.

scholarly journals A GEODATABASE FOR MULTISOURCE DATA APPLIED TO CULTURAL HERITAGE: THE CASE STUDY OF VILLA REVEDIN BOLASCO

2016 ◽  
Vol XLI-B5 ◽  
pp. 267-271
Author(s):  
A. Guarnieri ◽  
A. Masiero ◽  
M. Piragnolo ◽  
F. Pirotti ◽  
A. Vettore
Keyword(s):  
Cultural Heritage ◽  
Programming Languages ◽  
3D Model ◽  
Web Gis ◽  
Data Management System ◽  
Web Based ◽  
Virtual Globe ◽  
Multitemporal Data ◽  
Xix Century

In this paper we present the results of the development of a Web-based archiving and documenting system aimed to the management of multisource and multitemporal data related to cultural heritage. As case study we selected the building complex of Villa Revedin Bolasco in Castefranco Veneto (Treviso, Italy) and its park. Buildings and park were built in XIX century after several restorations of the original XIV century area. The data management system relies on a geodatabase framework, in which different kinds of datasets were stored. More specifically, the geodatabase elements consist of historical information, documents, descriptions of artistic characteristics of the building and the park, in the form of text and images. In addition, we used also floorplans, sections and views of the outer facades of the building extracted by a TLS-based 3D model of the whole Villa. In order to manage and explore these rich dataset, we developed a geodatabase using PostgreSQL and PostGIS as spatial plugin. The Web-GIS platform, based on HTML5 and PHP programming languages, implements the NASA Web World Wind virtual globe, a 3D virtual globe we used to enable the navigation and interactive exploration of the park. Furthermore, through a specific timeline function, the user can explore the historical evolution of the building complex.

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