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[37] | 1 | function p = convert(q, t) |
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| 2 | % CONVERT Convert elements of a quaternion to another type. |
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| 3 | % |
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| 4 | % This function converts a quaternion array into a quaternion array with |
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| 5 | % components of a different data type (e.g. int8, double, single). |
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| 6 | |
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| 7 | % Copyright © 2006 Stephen J. Sangwine and Nicolas Le Bihan. |
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| 8 | % See the file : Copyright.m for further details. |
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| 9 | |
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| 10 | error(nargchk(2, 2, nargin)), error(nargoutchk(0, 1, nargout)) |
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| 11 | |
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| 12 | if ~ischar(t) |
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| 13 | error('Second parameter must be a string.') |
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| 14 | end |
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| 15 | |
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| 16 | f = str2func(t); % Construct a function handle from t, which must denote |
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| 17 | % a function on the current Matlab path, so if it does |
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| 18 | % not, an error will occur here. |
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| 19 | if ispure(q) |
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| 20 | p = quaternion( f(x(q)), f(y(q)), f(z(q))); |
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| 21 | else |
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| 22 | p = quaternion(f(s(q)), f(x(q)), f(y(q)), f(z(q))); |
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| 23 | end |
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