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Optimal tubes [spacecraft modelling]

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1 Author(s)
Blinn, J.F. ; California Inst. of Technol., Pasadena, CA, USA

A technique devised to cut down the number of polygons required to model and render the Voyager spacecraft is presented. It requires the solution of a simple geometric problem: find the tangent lines from a point to a circle. He describes two ways of solving this problem, one using conventional analytical geometry and the other using homogeneous coordinates. The latter provides some useful generality.<>

Published in:

Computer Graphics and Applications, IEEE  (Volume:9 ,  Issue: 5 )