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 rotate a line curve

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jqian Posted - 01/03/2008 : 11:50:10 AM
Origin Version (Select Help-->About Origin): 7.5
Operating System:

May I know how to rotate a curve to a certain angle such as 5 degrees?
Thanks.
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jqian Posted - 01/16/2008 : 11:02:03 PM

// if column1 is x and column2 is y. and if you want to turn the curve to angle 45 degrees do following:


work -a 2; //add 2 columns at the end of the worksheet;

Enter_angle =45;

col(3)=SQRT(col(1)*col(1)+col(2)*col(2))*cos(atan(col(2)/col(1))+Enter_Angle*PI/180);
col(4)=SQRT(col(1)*col(1)+col(2)*col(2))*sin(atan(col(2)/col(1))+Enter_Angle*PI/180);

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