/usr/share/psychtoolbox-3/PsychCal/Cross3D.m is in psychtoolbox-3-common 3.0.14.20170103+git6-g605ff5c.dfsg1-1build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | function output = Cross3D(v1,v2,v3)
% output = Cross3D(v1,v2,v3)
%
% Produce a matrix of 3D column vectors that cross all
% combinations of the passed input vectors.
%
% See also meshgrid, ndgrid.
%
% 8/25/97 dhb Add to Cal subfolder.
output = zeros(3,length(v1)*length(v2)*length(v3));
index = 1;
for i = 1:length(v1)
for j = 1:length(v2)
for k = 1:length(v3)
output(1,index) = v1(i);
output(2,index) = v2(j);
output(3,index) = v3(k);
index = index+1;
end
end
end
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