File: SampleCircle.m

package info (click to toggle)
psychtoolbox-3 3.0.14.20170103%2Bgit6-g605ff5c.dfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 103,044 kB
  • ctags: 69,483
  • sloc: ansic: 167,371; cpp: 11,232; objc: 4,708; sh: 1,875; python: 383; php: 344; makefile: 207; java: 113
file content (19 lines) | stat: -rw-r--r-- 433 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
function units = sampleCircle(nTheta,elevation)
% units = sampleCircle(nTheta,elevation)
% 
% Sample points uniformly around a circle.
%
% 8/3/96  dhb  Added this comment.

deltaT = 2*pi/nTheta;
iT = 0;

units = zeros(3,nTheta);
index = 1;
for i = 0:nTheta-1
  theta = iT + i*deltaT;
  units(1,index) = cos(elevation)*cos(theta);
  units(2,index) = sin(elevation)*cos(theta);
  units(3,index) = sin(theta);
  index = index + 1; 
end