Interaktivni 3D prikaz terena Slovenije na spletu

Rupnik, Rok (author), Divjak, Saša (mentor), Marolt, Matija (co-mentor)

V sklopu magistrskega dela smo implementirali interaktivni 3D prikaz digitalnega modela terena Slovenije na spletu. Model je izdelala Agencija Republike Slovenije za okolje s pomočjo tehnologije LIDAR. Velikost vseh podatkov o višini v skrčeni obliki znaša približno 60 GB. Take količine podatkov ne moremo neposredno prenašati za prikaz v brskalniku, zato smo jih morali poenostaviti in organizirati v več nivojev podrobnosti. Implementirali smo strežniški program, ki podatke na zahtevo streže aplikaciji v brskalniku odjemalca, ta pa skrbi za njihovo upodabljanje. Po implementaciji upodabljanja smo primerjali rešitev, ki uporablja obstoječe knjižnice, in lastno tehniko, ki je sledila metodi CDLOD.

• Language: Slovenian
• Keywords: 3D vizualizacija terena, spletne tehnologije, WebGL, LOD, CDLOD, LIDAR
• Work type: Master's thesis/paper
• Organization: FRI - Faculty of Computer and Information Science
• Year: 2017
• PID: 20.500.12556/RUL-96696
• Publication date in RUL: 11.10.2017

Secondary language

• Language: English
• Title: Interactive online 3D display of Slovenian terrain

Abstract

In this master thesis we implemented an online interactive 3D display of a digital terrain model of Slovenia. The model was made with the help of LIDAR technology by Slovenian environment agency (ARSO). The size of all data in compressed form is about 60 GB. We cannot transfer this amount of data directly for rendering in the browser. We simplified the data and organised it into multiple levels of detail. This data was then served from a server program to an app in the client’s browser. This app made sure to load and render the correct data. After the implementation we compared the solution from existing libraries and our own technique which was based on the CDLOD method.

• Keywords: 3D terrain visualisation, web tehnologies, WebGL, LOD, CDLOD, LIDAR