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<div>Do you know the order in which the transformations are applied? Is scaling applied before translation? If I apply a –1 scaling to x, does that reflect the points across the y-z plane? </div>
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<div>Thanks,</div>
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<div>Kevin</div>
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<span style="font-weight:bold">From: </span>"Moreland, Kenneth" <<a href="mailto:kmorel@sandia.gov">kmorel@sandia.gov</a>><br>
<span style="font-weight:bold">Date: </span>Monday, April 25, 2016 at 12:30 PM<br>
<span style="font-weight:bold">To: </span>Kevin Hallock <<a href="mailto:Kevin.Hallock@pfizer.com">Kevin.Hallock@pfizer.com</a>>, "<a href="mailto:paraview-developers@paraview.org">paraview-developers@paraview.org</a>" <<a href="mailto:paraview-developers@paraview.org">paraview-developers@paraview.org</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [Paraview-developers] Affine transformations in Paraview 5.0.0<br>
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<div>Kevin,</div>
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<div>You could try the Transform filter. The interface is similar to the transform options in properties, but the results are more stable.</div>
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<div>You can also run the Image Data to Point Set filter to convert to a curvilinear grid and then run the calculator filter with the Coordinate Results option checked and an equation for the transformation set as the expression.</div>
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<div>-Ken</div>
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<span style="font-weight:bold">From: </span>Paraview-developers <<a href="mailto:paraview-developers-bounces@paraview.org">paraview-developers-bounces@paraview.org</a>> on behalf of "Hallock, Kevin" <<a href="mailto:Kevin.Hallock@pfizer.com">Kevin.Hallock@pfizer.com</a>><br>
<span style="font-weight:bold">Date: </span>Monday, April 25, 2016 at 9:41 AM<br>
<span style="font-weight:bold">To: </span>"<a href="mailto:paraview-developers@paraview.org">paraview-developers@paraview.org</a>" <<a href="mailto:paraview-developers@paraview.org">paraview-developers@paraview.org</a>><br>
<span style="font-weight:bold">Subject: </span>[EXTERNAL] [Paraview-developers] Affine transformations in Paraview 5.0.0<br>
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<div>Hi, </div>
<div><br>
</div>
<div>I am trying to display PLY objects that were created from NIFTI files and I know in other software (DSI Studio) the NIFTI images are co-registered by using the header information in the NIFTI file. The matrices that contain the co-registration information
of the two brain atlases are: </div>
<div><br>
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<div>AATG atlas </div>
<div><br>
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<table border="0" cellpadding="0" cellspacing="0" width="130" style="border-collapse:
collapse;width:130pt">
<!--StartFragment--><colgroup><col width="65" span="2" style="width:65pt"></colgroup>
<tbody>
<tr height="15" style="height:15.0pt">
<td height="15" class="xl63" width="65" style="height:15.0pt;width:65pt">srow_x</td>
<td class="xl63" width="65" style="width:65pt">[-1,0,0,78]</td>
</tr>
<tr height="15" style="height:15.0pt">
<td height="15" class="xl63" style="height:15.0pt">srow_y</td>
<td class="xl63">[0,-1,0,76]</td>
</tr>
<tr height="15" style="height:15.0pt">
<td height="15" class="xl63" style="height:15.0pt">srow_z</td>
<td class="xl63">[0,0,1,-50]</td>
</tr>
<!--EndFragment-->
</tbody>
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<br>
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<div>MNI atlas</div>
<div><br>
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collapse;width:130pt">
<!--StartFragment--><colgroup><col width="65" span="2" style="width:65pt"></colgroup>
<tbody>
<tr height="15" style="height:15.0pt">
<td height="15" class="xl63" width="65" style="height:15.0pt;width:65pt">srow_x</td>
<td class="xl63" width="65" style="width:65pt">[-1,0,0,90]</td>
</tr>
<tr height="15" style="height:15.0pt">
<td height="15" class="xl63" style="height:15.0pt">srow_y</td>
<td class="xl63">[0,1,0,-126]</td>
</tr>
<tr height="15" style="height:15.0pt">
<td height="15" class="xl63" style="height:15.0pt">srow_z</td>
<td class="xl63">[0,0,1,-72]</td>
</tr>
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<div><br>
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<div><br>
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<div>These transforms are supposed to be applied in the following way: </div>
<div><br>
</div>
<div>
<pre style="font-family: 'Courier New', Courier, monospace; font-size: 14.5728px; padding: 1em; border: 1px dashed rgb(140, 172, 187); overflow: auto; widows: 1; background-color: rgb(255, 255, 255);"><p style="margin: 0.5em 0em 1em; line-height: 1.5em;">The (x,y,z) coordinates are given by a general affine transformation<br> of the (i,j,k) indexes:</p><p style="margin: 0.5em 0em 1em; line-height: 1.5em;"> x = srow_x<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref0&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=8qiMwHuGuspszWC8U6jndR8f_wqrw01BeIg9ByV_zrQ&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref0&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=8qiMwHuGuspszWC8U6jndR8f_wqrw01BeIg9ByV_zrQ&e=" style="color: purple; background-color: transparent;">[0]</a> * i + srow_x<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref1&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=--VM2xNOdZQUbrBULCtT3eMeBMtec-ZbEXjT0R2n38E&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref1&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=--VM2xNOdZQUbrBULCtT3eMeBMtec-ZbEXjT0R2n38E&e=" style="color: purple; background-color: transparent;">[1]</a> * j + srow_x<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref2&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=ewkQWpxdLwjTbSdljZDOkh62TRnOMoGB5c6R6OroyGk&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref2&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=ewkQWpxdLwjTbSdljZDOkh62TRnOMoGB5c6R6OroyGk&e=" style="color: purple; background-color: transparent;">[2]</a> * k + srow_x<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref3&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=WNBkIFXxHNTTWbQv5TwlxO_6B3KYmpUZIl-D_VbN5ao&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref3&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=WNBkIFXxHNTTWbQv5TwlxO_6B3KYmpUZIl-D_VbN5ao&e=" style="color: purple; background-color: transparent;">[3]</a>
y = srow_y<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref0&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=8qiMwHuGuspszWC8U6jndR8f_wqrw01BeIg9ByV_zrQ&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref0&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=8qiMwHuGuspszWC8U6jndR8f_wqrw01BeIg9ByV_zrQ&e=" style="color: purple; background-color: transparent;">[0]</a> * i + srow_y<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref1&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=--VM2xNOdZQUbrBULCtT3eMeBMtec-ZbEXjT0R2n38E&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref1&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=--VM2xNOdZQUbrBULCtT3eMeBMtec-ZbEXjT0R2n38E&e=" style="color: purple; background-color: transparent;">[1]</a> * j + srow_y<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref2&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=ewkQWpxdLwjTbSdljZDOkh62TRnOMoGB5c6R6OroyGk&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref2&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=ewkQWpxdLwjTbSdljZDOkh62TRnOMoGB5c6R6OroyGk&e=" style="color: purple; background-color: transparent;">[2]</a> * k + srow_y<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref3&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=WNBkIFXxHNTTWbQv5TwlxO_6B3KYmpUZIl-D_VbN5ao&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref3&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=WNBkIFXxHNTTWbQv5TwlxO_6B3KYmpUZIl-D_VbN5ao&e=" style="color: purple; background-color: transparent;">[3]</a>
z = srow_z<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref0&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=8qiMwHuGuspszWC8U6jndR8f_wqrw01BeIg9ByV_zrQ&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref0&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=8qiMwHuGuspszWC8U6jndR8f_wqrw01BeIg9ByV_zrQ&e=" style="color: purple; background-color: transparent;">[0]</a> * i + srow_z<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref1&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=--VM2xNOdZQUbrBULCtT3eMeBMtec-ZbEXjT0R2n38E&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref1&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=--VM2xNOdZQUbrBULCtT3eMeBMtec-ZbEXjT0R2n38E&e=" style="color: purple; background-color: transparent;">[1]</a> * j + srow_z<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref2&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=ewkQWpxdLwjTbSdljZDOkh62TRnOMoGB5c6R6OroyGk&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref2&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=ewkQWpxdLwjTbSdljZDOkh62TRnOMoGB5c6R6OroyGk&e=" style="color: purple; background-color: transparent;">[2]</a> * k + srow_z<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref3&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=WNBkIFXxHNTTWbQv5TwlxO_6B3KYmpUZIl-D_VbN5ao&e=" style="color: purple; background-color: transparent;"></a><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__nifti.nimh.nih.gov_nifti-2D1_documentation_nifti1fields_nifti1fields-5Fpages_qsform.html-23ref3&d=CwMGaQ&c=UE1eNsedaKncO0Yl_u8bfw&r=qGFCsM9Qjq3aeVt5MRS91N125WRsKH5G5-a71j341EM&m=nCAPtkMpChMosemZqDfuQDaLyfoPS72_wwr4zlM-Cfs&s=WNBkIFXxHNTTWbQv5TwlxO_6B3KYmpUZIl-D_VbN5ao&e=" style="color: purple; background-color: transparent;">[3]</a></p></pre>
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<div>I thought I would be able to co-register them by applying the above information via the Transform option under Properties, but the result appears to be missing at least one rotation so I am wondering if there is another way to do the affine transformation.
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<div>Thanks,</div>
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<div>Kevin</div>
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