UDMV13: Eurographics Workshop on Urban Data Modelling and Visualisation

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https://diglib.eg.org/handle/10.2312/451

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Browsing UDMV13: Eurographics Workshop on Urban Data Modelling and Visualisation by Subject "I.3.8 [Computer Graphics]"

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    Dual-Domain Visual Exploration of Urban Solar Potential
    (The Eurographics Association, 2013) Seipel, Stefan; Lingfors, David; Widén, Joakim; Vincent Tourre and Gonzalo Besuievsky
    Traditional methods for estimating the solar energy potential in buildings determine energy yields on an annual base and make use of highly aggregated geo-spatial data. This work proposes a method for detailed assessment of the potential solar energy yield in the temporal and spatial domain. Solar irradiance is evaluated using numerical methods based on hourly variation of solar irradiance and on actual building geometry. Results of our initial studies allow exploration of the variation patterns in solar yield depending on local and time-varying factors, which cannot be seen in coarse level solar planning tools. This helps identifying surfaces with good solar yield that are deemed unfavorable according to traditional planning practices.
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    A General Strategy for Semantic Levels of Detail Visualization in Urban Environment
    (The Eurographics Association, 2013) Zhang, Fan; Tourre, Vincent; Moreau, Guillaume; Vincent Tourre and Gonzalo Besuievsky
    Applications based on urban environments are applied frequently in daily life which increases the needs for a high quality visualization result. It combines the urban environment and the special application-related topic together. The urban environment can be visualized with different scales, namely with different levels of detail to improve rendering and processing performance of the application. Visualization for the special topic, semantics, similarly is in need of a smart strategy to stay consistent with information density. This paper proposes a general strategy to handle semantic levels of detail visualization in urban environment. An example is given to illustrate how it is applied. Later, a mapping between urban environment levels of detail and semantic levels of detail is discussed. In the last part, the limitations of the general strategy are stated. And visualization issues for semantics are listed such as the proper visualization form and technique for a given semantic level of detail. This paper aims to bring about a wider discussion on semantic levels of detail visualization in urban environment.