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<p style="margin-top:0;margin-bottom:0">Dear All,</p>
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<p style="margin-top:0;margin-bottom:0">I am trying to mark on the image using a mouse release event. But the mark appears in different coordinates than which I indicate.</p>
<p style="margin-top:0;margin-bottom:0">Below is my code:</p>
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<div>if (event->button() == Qt::LeftButton )</div>
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<div><span style="white-space:pre"></span>// Seed points visualization</div>
<div><span style="white-space:pre"></span>vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New();</div>
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<div><span style="white-space:pre"></span>double center[3] = {event->pos().x(), event->pos().y(), currentSlice};</div>
<div><span style="white-space:pre"></span>qDebug() << "center: " << center[0] << " "<< center[1] << " " << center[2];</div>
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<div><span style="white-space:pre"></span>sphereSource->SetCenter(0.0, 0.0, 0.0);</div>
<div><span style="white-space:pre"></span>sphereSource->SetRadius(10.0);</div>
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<div><span style="white-space:pre"></span>sphereSource->Update();</div>
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<div><span style="white-space:pre"></span>vtkSmartPointer<vtkPolyDataMapper> sphereMapper = vtkSmartPointer<vtkPolyDataMapper>::New();</div>
<div><span style="white-space:pre"></span>sphereMapper->SetInputConnection(sphereSource->GetOutputPort());</div>
<div><span style="white-space:pre"></span>sphereMapper->Update();</div>
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<div><span style="white-space:pre"></span>vtkSmartPointer<vtkActor> sphereActor = vtkSmartPointer<vtkActor>::New();</div>
<div><span style="white-space:pre"></span>sphereActor->SetMapper(sphereMapper);</div>
<div><span style="white-space:pre"></span>sphereActor->GetProperty()->SetColor(1.0, 0.0, 0.0);</div>
<div><span style="white-space:pre"></span>sphereActor->GetProperty()->SetPointSize(5);</div>
<div><span style="white-space:pre"></span>sphereActor->SetPosition(center);</div>
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<div><span style="white-space:pre"></span>m_renderer->DisplayToWorld();</div>
<div><span style="white-space:pre"></span>m_renderer->AddActor(sphereActor);</div>
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<div><span style="white-space:pre"></span>}</div>
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<div><span style="white-space:pre"></span>ui->qVTK1->update();</div>
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<p style="margin-top:0;margin-bottom:0">Thank you in advance</p>
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