Shadow maps for real terrain
Autor: | D. G. Knight |
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Rok vydání: | 2007 |
Předmět: | |
Zdroj: | International Journal of Mathematical Education in Science and Technology. 38:259-268 |
ISSN: | 1464-5211 0020-739X |
Popis: | The use of digital elevation models, which represent the surface of the earth by a matrix of heights, has proved an ideal introductory topic for developing both the matrix-handling and computational skills of undergraduate mathematicians. This article looks at the solving of an easily understandable, but not necessarily simple problem: given a particular date, time and terrain, and within the software skills available to first-year students via a computer algebra system, produce a map which can show those parts of the terrain which lie in shadow. |
Databáze: | OpenAIRE |
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