Geovisualization of 3D Modeling Representation of Topographic Relief Based on Open Source GIS

A. B. Cahyono*, Y. Budisusanto, H. Hidayat

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

2-dimensional and 3-dimensional representations have been used in various physical, virtual, and geovisual surface models of the earth - to improve spatial thinking skills. Physical models such as relief maps have been shown to enhance understanding of topographic maps, helping to understand the relationship between 2D representations and 3D objects. Virtual models can support spatial learning, for example, by viewing objects at various angles, by providing an environmental context. This model makes it possible to combine physical models' interactive benefits with virtual tools' flexibility and diversity. The term geovisual is an overlay depiction of information scanned through a sensor, processed by a computer. Subsequently, the data obtained are presented to the media so that it is like the real world. It has been built and used in this Tangible research Landscape, which is a real-time geovisual system integrated into a computer connected to a 3D sensor, projector, and supported by GRASS GIS [1]. This geovisual system is then applied for modeling terrain 3-D terrain physically through media, scanned through sensors to a computer, and used to analyze the environment with various effects and graphical simulations. The initial model produced is topography from aerial photographs and DEM from LiDAR, which has a spatial resolution of up to 0.4 meters showing physical processes such as contour lines and water flow, and sediment transportation can be well visualized.

Original languageEnglish
Article number012023
JournalIOP Conference Series: Earth and Environmental Science
Volume731
Issue number1
DOIs
Publication statusPublished - 13 Apr 2021
Externally publishedYes
Event5th Geomatics International Conference 2020, GeoICON 2020 - Virtual, Online, Indonesia
Duration: 26 Aug 2020 → …

Keywords

  • 3D modeling
  • geographic information systems (GIS)
  • geovisualization

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