/usr/share/psychtoolbox-3/PsychRects/InsetRect.m is in psychtoolbox-3-common 3.0.11.20131230.dfsg1-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | function r = InsetRect(r,dh,dv)
% r = InsetRect(r,dh,dv)
%
% Shrinks the rectangle by pushing in the left and right
% sides, each by the amount dh, and the top and bottom by the amount dv.
% Negative values of dh and dv produce expansion.
% Also see PsychRects.
% 5/21/96 Denis Pelli
% 7/10/96 dgp PsychRects
% 8/5/96 dgp check rect size.
if nargin~=3
error('Usage: r = InsetRect(r,dh,dv)');
end
if size(r,2)~=4
error('Wrong size rect argument. Usage: r = InsetRect(r,dh,dv)');
end
r = r+SetRect(dh,dv,-dh,-dv);
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