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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Hello,
<br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt"><br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">I am trying to optimize coil positioning and orientation for TMS but I am not sure how to apply the affine transformation matrix in Localite (matrix shown below). I used headreco to
generate the headmodel. <br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">- Because I used headreco, the values in the matrix are in native space, is that correct?<br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">- How do I define the entry target in Localite? Would this be 84.3, -8.4, 35.6?</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">- How do I calculate the rotation angle from this matrix? I am aware of the coil and axes orientations in SimNIBS and Localite (attached) but do not know how to use that information
to set the rotation angle. </div>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Affine matrix after TMSoptimize:<br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">[[-5.7218e-03 -3.2704e-01 -9.4499e-01 8.4300e+01]
<div> [-8.5258e-01 -4.9224e-01 1.7551e-01 -8.3755e+00]</div>
<div> [-5.2256e-01 8.0669e-01 -2.7601e-01 3.5573e+01]</div>
[ 0.0000e+00 0.0000e+00 0.0000e+00 1.0000e+00]]</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt"><br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Thank you in advance, I appreciate all the help I can get. </div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Goi Khia<br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt"><br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">--</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Goi Khia Eng</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Postdoctoral Fellow, Department of Psychiatry</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">New York University School of Medicine</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Visiting Scientist</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Nathan Kline Institute for Psychiatric Research</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">goikhia.eng@nyulangone.org</div>
goikhia.eng@nki.rfmh.org
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