Man Scilab

rotate
Scilab Function

rotate - rotation of a set of points

Calling Sequence

xy1=rotate(xy,[theta,orig])

Parameters

Description

rotate performs a rotation with angle theta :

xy1(:,i) = M(theta) *xy (:,i) + orig

where M stands for the corresponding rotation matrix.

Examples


xsetech([0,0,1,1],[-1,-1,1,1])
xy=[(0:0.1:10);sin(0:0.1:10)]/10;
for i=2*%pi*(0:10)/10,
  [xy1]=rotate(xy,i);
  xpoly(xy1(1,:),xy1(2,:),"lines")
end
 
  

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