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Can you translate and rotate your coordinate system?<br />
If so, translate your coordinate system so that pt1 = (0,0). Pt2 then = (0,30)<br />
Rotate coord system 17 degrees. Translate coord system back to original location. You are done.<br />

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Can you translate and rotate your coordinate system?
If so, translate your coordinate system so that pt1 = (0,0). Pt2 then = (0,30)
Rotate coord system 17 degrees. Translate coord system back to original location. You are done.


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I hope this link will be helpful:<br />
<a href="http://en.wikipedia.org/wiki/Rotation_(mathematics)" rel="ugc">http://en.wikipedia.org/wiki/Rotation_(mathematics)</a>
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I hope this link will be helpful:
http://en.wikipedia.org/wiki/Rotation_(mathematics) [http://en.wikipedia.org/wiki/Rotation_(mathematics)]

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hey DJ_AM_Juicebox,<br />
<br />
in addition, do you need the generalised matrix-form? its<br />
<br />
m = m_trans_pt1 * m_rot(phi) * m_trans_pt1_inv<br />
<br />
basically its the same as the above comments say.. <br />
tell us if you need help creating those matrices ..<br />
<br />
<br />
ike
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hey DJ_AM_Juicebox,

in addition, do you need the generalised matrix-form? its

m = m_trans_pt1 * m_rot(phi) * m_trans_pt1_inv

basically its the same as the above comments say..
tell us if you need help creating those matrices ..


ike

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Hi,<br />
<br />
I have two 2d points. I want to rotate one point around the other. How do I do this? Here is my input:<br />
<br />
&nbsp; &nbsp; Point pt1 = (100, 100);<br />
&nbsp; &nbsp; Point pt2 = (100, 130);<br />
<br />
&nbsp; &nbsp; Now rotate pt2 around pt1 by 17 degrees.<br />
<br />
Yeah I basically need that to work with variable pt1 and pt2 and degrees of 0 to 360. Not sure how to do this,<br />
<br />
Thanks
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Hi,

I have two 2d points. I want to rotate one point around the other. How do I do this? Here is my input:

    Point pt1 = (100, 100);
    Point pt2 = (100, 130);

    Now rotate pt2 around pt1 by 17 degrees.

Yeah I basically need that to work with variable pt1 and pt2 and degrees of 0 to 360. Not sure how to do this,

Thanks

Rotate a 2d point around another point?

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