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annotate vector2cell.m @ 87:0a29a60e0b21

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In Curve: Rearranged for speed. arc_length_fun is now a property of Curve. If it is not supplied, it is computed via the derivative and spline fitting. Switching to the arc length parameterization is much faster now. The new stuff can be tested with testArcLength.m (which should be deleted after that).
author Martin Almquist <martin.almquist@it.uu.se>
date Sun, 29 Nov 2015 22:23:09 +0100
parents a66aefd5e6ac
children
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14
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
parents:
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1 % Splits column vector v into segments of length n and returns the result as a column cell array.
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
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2 % v -- column vector to be split
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
parents:
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3 % n -- number of elements in each part
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
parents:
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4 %
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
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5 % cv -- cell array of vectors with lenght n(i)
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
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6 function cv = vector2cell(v,n)
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
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7 cv = cell(length(n),1);
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
parents:
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8
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
parents:
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9 ind = [0; cumsum(n)];
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
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10 for i = 1:length(n)
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
parents:
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11 ind_i = (ind(i)+1):ind(i+1);
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
parents:
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12 cv{i} = v(ind_i);
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
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13 end
a66aefd5e6ac Added functions for converting vectors to and from cell format.
Jonatan Werpers <jonatan@werpers.com>
parents:
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14 end