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    Visualisation of Digital Terrain Data

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    EUROGRAPHICS_89pp173_195.pdf (2.423Mb)
    Date
    1989
    Author
    Thiemann, Rolf
    Fischer, Joachim
    Haschek, Guido
    Kneidl, Gerald
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    Abstract
    Visualisation technology has found practical application in the field of terrain data processing. A raster data base (RDB-) concept will be introduced, i.e. a multi-dimensional concept of terrain data using elevation data, description data and/or aerial image or satellite data. Other data sources in raster or vector form may also be considered. Methods of 2- and 3-D-imaging of terrain data are pre- sented. Two-dimensional presentation will include grey- and colorcoding of different RDB layers. Techniques for superimposing two datasets are shown using relief data as one source. Color-coding, color-space transformation or a slide-effect process will be used for superimposition. The mapping of aerial image or satellite data onto the relief data will be achieved by known texture-map algorithms. The overlay technique is used for superimposing raster with vector data from geographic data bases. For superimposition, the geometry of the two datasets must not be different. Many applications need the generation of perspective views of the terrain data. For the generation a terrainraytracer will be introduced. Color impression again will be achieved by texture-mapping. Fore- and background can be handled separately. All algorithms presented are implemented in the GELA software.
    BibTeX
    @inproceedings {10.2312:egtp.19891013,
    booktitle = {EG 1989-Technical Papers},
    editor = {},
    title = {{Visualisation of Digital Terrain Data}},
    author = {Thiemann, Rolf and Fischer, Joachim and Haschek, Guido and Kneidl, Gerald},
    year = {1989},
    publisher = {Eurographics Association},
    ISSN = {1017-4656},
    DOI = {10.2312/egtp.19891013}
    }
    URI
    http://dx.doi.org/10.2312/egtp.19891013
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    • EG1989 Proceedings (Technical Papers)
    • EG1989 Proceedings (Technical Papers)

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    Eurographics Association copyright © 2013 - 2022 
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    Theme by @mire NV
    System hosted at  Graz University of Technology.
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