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<p class="MsoNormal">Would you mind posting your question to <a href="https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdiscourse.vtk.org&data=02%7C01%7Classo%40queensu.ca%7C5304536c0989415fbbc908d6ac81b86e%7Cd61ecb3b38b142d582c4efb2838b925c%7C1%7C0%7C636886070474774650&sdata=lun%2BrDG1HY0uvG2whuSD8ErGkAwmr0Vl2a7iBriy%2BdQ%3D&reserved=0">
https://discourse.vtk.org</a>? Community support for VTK is transitioning to that forum, and you are more likely to get an answer there.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Andras<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>From:</b> vtkusers <vtkusers-bounces@vtk.org> <b>On Behalf Of
</b>Esmeralda Ruiz<br>
<b>Sent:</b> Wednesday, March 20, 2019 8:55 AM<br>
<b>To:</b> vtkusers@vtk.org<br>
<b>Subject:</b> [vtkusers] mouse coordinates from a 3d volume with wrong y<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Dear all, <o:p></o:p></p>
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<p class="MsoNormal">I want to get the positions of a volume using the mouse for segmentation. But the y coordinate is wrong. I only get the x and z fine but the depth (y) is not correct. I use this code to get the position. Is there any way to obtain the
slice (y position)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">thanks<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> // Get the location of the click (in window coordinates)<br>
int* pos = this->GetInteractor()->GetEventPosition();<br>
<br>
vtkSmartPointer<vtkCellPicker> picker =<br>
vtkSmartPointer<vtkCellPicker>::New();<br>
picker->SetTolerance(0.0005);<br>
<br>
<br>
//this->GetDefaultRenderer()->Clear();<br>
<br>
// Pick from this location.<br>
picker->Pick(pos[0], pos[1], 0, global_renderer);<br>
<br>
double* worldPosition = picker->GetPickPosition();<br>
std::cout << "Cell id is: " << picker->GetCellId() << std::endl;<br>
<br>
if (picker->GetCellId() != -1)<br>
{<br>
<br>
std::cout << "Pick position is: " << worldPosition[0] << " " << worldPosition[1]<br>
<< " " << worldPosition[2] << endl;<br>
}<o:p></o:p></p>
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