Visualizing large terrain in desktop environment

HeeSouk Park, MyeongSun Kim, Moonil Heo, Chang-Sung Jeong

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

We describe several implementation aspects on generating a terrain representation from a digital elevation model (DEM) and visualizing scene from that representation on desktop environment. Most of terrain data is too huge to cram into system memory in low-end computer. Consequently, we must use secondary storage device as a part of system memory at run time. However, dynamic loading of data from a disk is relatively slow, in order to speed up access of terrain data on disk, we use two disk access mechanism: spatial clustering and smart pointer. For spatial clustering, we present a directory structure with Hana code as a key. And with smart pointer, we present an object access method, which can access objects regardless of each stored location. We represent an approximated terrain model generation algorithm which utilize our methods, and a region selective rendering algorithm which can retrieve each queried region.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages120-128
Number of pages9
Volume3643
Publication statusPublished - 1999
EventProceedings of the 1999 Visual Data Exploration and Analysis VI - San Jose, CA, USA
Duration: 1999 Jan 271999 Jan 28

Other

OtherProceedings of the 1999 Visual Data Exploration and Analysis VI
CitySan Jose, CA, USA
Period99/1/2799/1/28

Fingerprint

Data storage equipment
dials
Computer systems
directories
digital elevation models

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Park, H., Kim, M., Heo, M., & Jeong, C-S. (1999). Visualizing large terrain in desktop environment. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3643, pp. 120-128). Society of Photo-Optical Instrumentation Engineers.

Visualizing large terrain in desktop environment. / Park, HeeSouk; Kim, MyeongSun; Heo, Moonil; Jeong, Chang-Sung.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3643 Society of Photo-Optical Instrumentation Engineers, 1999. p. 120-128.

Research output: Chapter in Book/Report/Conference proceedingChapter

Park, H, Kim, M, Heo, M & Jeong, C-S 1999, Visualizing large terrain in desktop environment. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3643, Society of Photo-Optical Instrumentation Engineers, pp. 120-128, Proceedings of the 1999 Visual Data Exploration and Analysis VI, San Jose, CA, USA, 99/1/27.
Park H, Kim M, Heo M, Jeong C-S. Visualizing large terrain in desktop environment. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3643. Society of Photo-Optical Instrumentation Engineers. 1999. p. 120-128
Park, HeeSouk ; Kim, MyeongSun ; Heo, Moonil ; Jeong, Chang-Sung. / Visualizing large terrain in desktop environment. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3643 Society of Photo-Optical Instrumentation Engineers, 1999. pp. 120-128
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