Calculates a point on the polygon belonging to param. For param = 0 , 1, 2, 3 ... you get the points this[0], this[1], this[2], this[3],... For values between a linear intepolation will be done. xyzArray a = new xyzArray(4);
a[0]= new xyz(1, 1 );
a[1]= new xyz(1,-1);
a[2]= new xyz(3, 4);
a[3]= new xyz(2, 2);
//a.Value(2.5) = (2.5, 3)
Linear interpolation of the polygon