<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Hi Matias,</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">translation (called offset in some of the classes) and center of rotation are different things, and taken care of differently.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Regards,</div><div class="gmail_default"><font face="verdana, sans-serif">Dženan Zukić, PhD, Senior R&D Engineer, Kitware (Carrboro, N.C.)</font></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 19, 2017 at 1:30 PM, Francois Budin <span dir="ltr"><<a href="mailto:francois.budin@kitware.com" target="_blank">francois.budin@kitware.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>Hello Matias,<br><br></div>I created a small executable based on the code you sent me:<br><br>#include <itkEuler3DTransform.h><span class=""><br><br>int main(int argc, char* argv[])<br>{<br></span><span class=""> typedef itk::Euler3DTransform< double > TransformType; <br>//Transform<br> TransformType::Pointer transform = TransformType::New(); <br>double alfa, beta, gamma, centro_rotacion_X, centro_rotacion_Y, centro_rotacion_Z, origenX,origenY; <br>gamma = atof(argv[2]); <br>beta = atof(argv[3]); <br>alfa = atof(argv[4]); <br>centro_rotacion_X = atof(argv[5]); <br>centro_rotacion_Y = atof(argv[6]); <br>centro_rotacion_Z = atof(argv[7]); <br>double centro[3] = { centro_rotacion_X, centro_rotacion_Y, centro_rotacion_Z }; <br>transform->SetCenter(centro); <br>transform->SetRotation(gamma, beta, alfa); <br></span>std::cout<<transform-><wbr>GetCenter()<<std::endl;<br>std::cout<<transform-><wbr>GetMatrix()<<std::endl;<br>std::cout<<transform<<std::<wbr>endl;<br> return 0;<br>}<br><br></div>And the results are correct:<br>./Euler 10 20 30 40 50 60 70<br>[50, 60, 70]<br>0.56923 -0.304067 0.763885<br>0.716525 -0.272165 -0.642275<br>0.403198 0.912945 0.0629472<br><br>Euler3DTransform (0x1126e80)<span class=""><br> RTTI typeinfo: itk::Euler3DTransform<double><br></span> Reference Count: 2<br> Modified Time: 3<span class=""><br> Debug: Off<br> Object Name: <br> Observers: <br> none<br> Matrix: <br></span> 0.56923 -0.304067 0.763885 <br> 0.716525 -0.272165 -0.642275 <br> 0.403198 0.912945 0.0629472 <br> Offset: [-13.6894, 85.4629, -9.34292]<br> Center: [50, 60, 70]<span class=""><br> Translation: [0, 0, 0]<br> Inverse: <br></span> 0.56923 0.716525 0.403198 <br> -0.304067 -0.272165 0.912945 <br> 0.763885 -0.642275 0.0629472 <br> Singular: 0<br> Euler's angles: AngleX=20 AngleY=30 AngleZ=40<br> m_ComputeZYX = 0<br><br></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 19, 2017 at 11:56 AM, Matias <span dir="ltr"><<a href="mailto:matimontg@gmail.com" target="_blank">matimontg@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Thanks Francois,<div><br></div><div>There's something strange in the matrix and Offset, this is what I get:</div><div><br></div><div><div>Center:</div><div><br></div><div>[-246.422, -149.871, 20]</div><div><br></div><div>Matrix:</div><div>1 0 0</div><div>0 1 0</div><div>0 0 1</div><div><br></div><div>Offset:</div><div>[0, 0, 0]</div></div></div><br><div class="gmail_quote"><div><div class="m_3321816680450957495h5"><div dir="ltr">El mar., 18 de abr. de 2017 a la(s) 14:47, Francois Budin-3 [via ITK - Users] <<a href="http:///user/SendEmail.jtp?type=node&node=38131&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a>> escribió:<br></div></div></div><blockquote style="border-left:2px solid #cccccc;padding:0 1em" class="gmail_quote"><div><div class="m_3321816680450957495h5">
<div dir="ltr"><div><div><div><div>Hello Matias,<br><br></div>I used the Euler3DTransform in a python terminal to see if I had problems setting the center and the angle, and everything seems to work as expected:<br><br>trans=itk.Euler3DTransform.D.N<wbr>ew()<br>trans.SetCenter([0,0,0])<br></div>trans.SetRotation(10,0,0)<br></div>trans.TransformPoint([0,0,0])<br>Out[46]: itkPointD3 ([0, 0, 0]) <-expected as the transform center is [0,0,0]<br><br>trans.SetCenter([10,0,0])<br>trans.TransformPoint([0,0,0])<br>Out[48]: itkPointD3 ([5.16482, -7.96596, 3.62828]) <-rotation not around [0,0,0] but around [10,0,0]<br><br></div>To try to understand you problem, I would advise you to print the content of your transform to see if it is set as you expect. In my case, I get:<br><br><div>Euler3DTransform (0x18da8a0)<br> RTTI typeinfo: itk::Euler3DTransform<double><br> Reference Count: 1<br> Modified Time: 377<br> Debug: Off<br> Object Name: <br> Observers: <br> none<br> Matrix: <br> 0.483518 -0.362828 0.796596 <br> 0.796596 0.559609 -0.228631 <br> -0.362828 0.745113 0.559609 <br> Offset: [5.16482, -7.96596, 3.62828]<br> Center: [10, 0, 0]<br> Translation: [0, 0, 0]<br> Inverse: <br> 0.483518 0.796596 -0.362828 <br> -0.362828 0.559609 0.745113 <br> 0.796596 -0.228631 0.559609 <br> Singular: 0<br> Euler's angles: AngleX=40 AngleY=10 AngleZ=10<br> m_ComputeZYX = 0<br><br></div><div>Hope this helps,<br></div><div>Francois<br></div><div><br><br></div></div></div></div><div><div class="m_3321816680450957495h5"><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Apr 17, 2017 at 7:11 PM, Matias <span dir="ltr"><<a href="http:///user/SendEmail.jtp?type=node&node=38127&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a>></span> wrote:<br>Hi,
I'm trying to rotate a volume and use an user defined center but no matter what value I set, it seems the rotation is always performed using the same center (not sure which, maybe a default center)?
Here's the code I'm using.. am I missing something?
typedef itk::Euler3DTransform< double > TransformType; //Transform
TransformType::Pointer transform = TransformType::New();
double alfa, beta, gamma, centro_rotacion_X, centro_rotacion_Y, centro_rotacion_Z, origenX,origenY;
gamma = atof(argv[2]);
beta = atof(argv[3]);
alfa = atof(argv[4]);
centro_rotacion_X = atof(argv[5]);
centro_rotacion_Y = atof(argv[6]);
centro_rotacion_Z = atof(argv[7]);
double centro[3] = { centro_rotacion_X, centro_rotacion_Y, centro_rotacion_Z };
transform->SetCenter(centro);
transform->SetRotation(gamma, beta, alfa);
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