時系列地形図閲覧ソフト『今昔マップ２』（首都圏編・中京圏編・京阪神圏編）の開発

抄録

This paper reports the development of a time-series topographic map viewer "Konjyaku Map 2": Capital, Chukyo and Keihanshin Area Edition, working on Windows 2000/XP/VISTA . Although there are considerable needs for acquiring knowledge of the past status of local areas, it takes a lot of time and effort to satisfy such needs. The software shows old topographic maps on a scale of 1 to 25,000 since the early 1900s and is downloadable from the internet. The software was developed for viewing maps with these fairly simple functions and can thus be easily operated.