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ID 27362
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An Example of Processing Geometric Data from Geological Body on a Personal Computer.
著者
吉村 典久
吉野 言生
NDC
地球科学・地学・地質学
抄録(英)
This paper deals with an example of processing geometric data from geological body on a personal computer (NEC PC9801VX21).

Orientation diagrams, being familier to the study in geology, are made by computer graphics. This program has been composed of BASIC.

Large masses consisting of rhyolite and granite occur in the Tateiwa district of Hiroshima Prefecture. For each of joint surfaces observed on the outcrops of these masses, the attitude was determined by measureing the strike and dip. The point diagram and contour diagram of these measurements, which are plotted on the lower hemisphere of equal-area-net, are shown on computer display.

In this conture diagram of the graphics, 16 gardes defining degree of preference in orientation are represented by different kinds of color. Each circle (one percent area) inscribed about each point is painted one by one, then, areas of overlapping other circles are repainted with the color choiced according to overlapping numbers. 16 colors are arranged for the repainting.

The time needed to complete the contour diagram of 100 points is about 10 minutes (with BASIC Compiler).
掲載誌名
広島大学学校教育学部紀要. 第二部
10巻
開始ページ
135
終了ページ
142
出版年月日
1987-12-25
出版者
広島大学学校教育学部
ISSN
0387-4869
NCID
言語
日本語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
教育学研究科
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