pointOnLine

POINTONLINE Create a point on a line at a given position on the line.

   P = pointOnLine(LINE, POS);
   Creates the point belonging to the line LINE, and located at the
   distance D from the line origin.
   LINE has the form [x0 y0 dx dy].
   LINE and D should have the same number N of rows. The result will have
   N rows ans 2 column (x and y positions).

   See also:
   lines2d, points2d, onLine, onLine, linePosition

   ---------

   author : David Legland
   INRA - TPV URPOI - BIA IMASTE
   created the 07/04/2004.

0001 function point = pointOnLine(line, pos)
0002 %POINTONLINE Create a point on a line at a given position on the line.
0003 %
0004 %   P = pointOnLine(LINE, POS);
0005 %   Creates the point belonging to the line LINE, and located at the
0006 %   distance D from the line origin.
0007 %   LINE has the form [x0 y0 dx dy].
0008 %   LINE and D should have the same number N of rows. The result will have
0009 %   N rows ans 2 column (x and y positions).
0010 %
0011 %   See also:
0012 %   lines2d, points2d, onLine, onLine, linePosition
0013 %
0014 %   ---------
0015 %
0016 %   author : David Legland
0017 %   INRA - TPV URPOI - BIA IMASTE
0018 %   created the 07/04/2004.
0019 %
0020 
0021 
0022 angle = lineAngle(line);
0023 point = [line(:,1) + pos .* cos(angle), line(:,2) + pos .* sin(angle)];
0024