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Revision 495
(checked in by cbc, 12 years ago)
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Initial import of Stark code.
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function [ur,vr]=rot(u,v,theta) |
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%ROT Rotate vectors |
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% ROT rotates input vectors u,v by radian angle |
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% theta COUNTERCLOCKWISE, and returns the rotated |
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% vectors. |
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% |
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% Input: u,v - series to rotate |
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% theta - rotation angle (in radians) |
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% |
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% Output: ur,vr - rotated series |
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% |
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% Call as: [ur,vr]=rot(u,v,theta); |
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% |
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% Find not NaN's in data |
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temp=[u(:) v(:)]; |
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idx=find(~isnan(sum(temp.'))); |
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% Complexify input series |
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w=u(:)+i*v(:); |
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% Rotate vector |
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wr=w*exp(i*theta); |
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% extract rotated ur,vr |
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ur=real(wr); |
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vr=imag(wr); |
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% |
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% Brian O. Blanton |
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% Department of Marine Sciences |
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% Ocean Processes Numerical Modeling Laboratory |
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% 12-7 Venable Hall |
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% CB# 3300 |
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% University of North Carolina |
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% Chapel Hill, NC |
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% 27599-3300 |
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% |
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% 919-962-4466 |
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% blanton@marine.unc.edu |
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% |
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% Spring 1999 |
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% |
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