JpGU-AGU Joint Meeting 2020

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[J] Oral

M (Multidisciplinary and Interdisciplinary) » M-GI General Geosciences, Information Geosciences & Simulations

[M-GI41] Earth and planetary informatics with huge data management

convener:Ken T. Murata(National Institute of Information and Communications Technology), Rie Honda(Department of Science and Technology, System of Natual Science, Kochi University), Susumu Nonogaki(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Takeshi Horinouchi(Faculty of Environmental Earth Science, Hokkaido University)

[MGI41-16] Advanced use of map tiles and the Seamless Geological Map My Town (Tentative)

*Yoshiharu Nishioka1, Kaoru Kitao2 (1.National Insititute of Advanced Industrial Science and Technology, 2.CubeWorks Inc.)

Keywords:map tile, Web map, geological map, administrative area, WebGL

In recent web maps, it is common to use map tiles for high-speed display. Normally, these map tiles are used only for display, but various uses can be considered by treating them as data, and by processing and integrating them. In general, map projections and tile image sizes are unified for map tiles, and are often available free of charge on the web. Therefore, such a method can be applied to a large amount of data processing with location information. We have called map tiles that can be treated as data as "data tile maps", and have studied how to use them. The Seamless Geological Map My Town (temporary) was created as an application example. This website uses the map tiles of the Seamless Geological Map of Japan 1: 200,000 and map tiles indicating administrative districts, and can display geological maps for each administrative district. WebGL is used for map tile processing.