国土数値情報による立体地図の作成

概要

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The digital national land information presents numerical and symbolical sets of the geographical information of all areas in Japan. The information are being provided by the Ministry of Construction. This paper presents some techiques for drawing three-dimensional maps using the information. The target area of mapping is a few tens of kilometer square. Mapping provides perspective transformation by its wire frame expression. The paper composes of two parts. The first part concerns to the digital national land information and a perspective transformation ; the next part states a few thchnical points for drewing maps by the methods described in the first part. The important points are as follows : (1) relation beween data density and a mapping area, (2) relation between code system and data retrieval, (3) problems in dealing with dummy data.
岡山理科大学の論文