vtkClipPolyData can get two outputs, so at first, I used vtkClipPolyData to cut the model, but the model cut out by vtkClipPolyData was hollow, and the sum of the volumes of the two outputs had a big error with the original model.
So I used vtkClipClosedSurface to cut the model instead, but vtkClipClosedSurface only produced one output. In order to solve the problem of my idea is to use vtkBooleanOperationPolyDataFilter on the original model and the generated model for poor.
But I seem to be stuck in the vtkBooleanOperationPolyDataFilter: : update method.
My code is as follows:
vtkMRMLModelNode* sourceNode = vtkMRMLModelNode::SafeDownCast(mrmlScene->GetNodeByID(charNodeID));
if (nullptr != sourceNode)
{
this->isClipped = true;
d->appendButton->setEnabled(false);
d->deleteButton->setEnabled(true);
d->clipButton->setEnabled(!this->isClipped);
this->appendPlane();
#if 1
auto result1 = clipHelp(sourceNode);
vtkSmartPointer<vtkBooleanOperationPolyDataFilter> boolFilter = vtkSmartPointer<vtkBooleanOperationPolyDataFilter>::New();
boolFilter->SetOperation(vtkBooleanOperationPolyDataFilter::VTK_DIFFERENCE);
boolFilter->SetInputData(0, sourceNode->GetPolyData());
boolFilter->SetInputData(1, result1->GetPolyData());
boolFilter->Update(); //It's stuck here
auto result2PolyData = boolFilter->GetOutput();
vtkSmartPointer<vtkMRMLModelNode> result2 = vtkSmartPointer<vtkMRMLModelNode>::New();
QString resultName = tr("Result Part_");
resultName.append(QString::number(this->timeOfClip));
result2->SetName(resultName.toLatin1().data());
result2->SetAndObservePolyData(result2PolyData);
result2->SetScene(mrmlScene);
vtkSmartPointer<vtkMRMLModelDisplayNode> resultDisplay = vtkSmartPointer<vtkMRMLModelDisplayNode>::New();
vtkSmartPointer<vtkMRMLModelStorageNode> resultStorage = vtkSmartPointer<vtkMRMLModelStorageNode>::New();
resultDisplay->SetScene(mrmlScene);
resultStorage->SetScene(mrmlScene);
resultDisplay->SetInputPolyDataConnection(result2->GetPolyDataConnection());
resultStorage->SetFileName(resultName.toLatin1().data());
mrmlScene->AddNode(resultDisplay);
mrmlScene->AddNode(resultStorage);
resultDisplay->SetColor(1.0, 0.0, 0.0);
result2->SetAndObserveDisplayNodeID(resultDisplay->GetID());
result2->SetAndObserveStorageNodeID(resultStorage->GetID());
mrmlScene->AddNode(result2);
this->deleteSurface();
//设置在同一分组下
auto shNode = mrmlScene->GetSubjectHierarchyNode();
if (nullptr != shNode)
{
auto groupName = std::string(sourceNode->GetName()) + "_Clip";
auto parent = shNode->GetItemByName(groupName);
if (0 == parent)
parent = mrmlScene->GetSubjectHierarchyNode()->CreateFolderItem(mrmlScene->GetSubjectHierarchyNode()->GetSceneItemID(), groupName);
if (0 != parent && nullptr != result1)
mrmlScene->GetSubjectHierarchyNode()->SetItemParent(mrmlScene->GetSubjectHierarchyNode()->GetItemByDataNode(result1), parent);
if (0 != parent && nullptr != result2)
mrmlScene->GetSubjectHierarchyNode()->SetItemParent(mrmlScene->GetSubjectHierarchyNode()->GetItemByDataNode(result2), parent);
}
auto sourceDisplayNode = sourceNode->GetModelDisplayNode();
//隐藏被剪切的model
if (nullptr != sourceDisplayNode)
sourceDisplayNode->SetVisibility(false);
Can someone help me, or do I have a better way to get two closed cut solid models and cut solid models after cutting models?
