CODEWITHSUNDEEP
vtk
Hoang Anh Tuan
Hoang Anh Tuan

Reputation: 63

How to set Window Width/Window Centers with vtkImageActor (or vtkActor)?

I want to set Windows Width/ Windows Center value when use vtkImageActor/vtkActor. But I could not find the way to solve it. (If I use vtkActor2d, it's okay, but I don't want to use it)

Upvotes: 0

Views: 1416

Answers (1)

JohnnyQ
JohnnyQ

Reputation: 1611

Attach a vtkWindowLevelLookupTable to your mapper.

Basic Example:

vtkSmartPointer<vtkWindowLevelLookupTable> myLookupTable = 
vtkSmartPointer<vtkWindowLevelLookupTable>::New();



double WindowWidth = myImageReader->GetOutput()->GetScalarRange()[1] -
                 myImageReader->GetOutput()->GetScalarRange()[0];
double WindowLevel = (myImageReader->GetOutput()->GetScalarRange()[1] +
                  myImageReader->GetOutput()->GetScalarRange()[0]) / 2.0;



myLookupTable->SetWindow(WindowWidth);
myLookupTable->SetLevel(WindowLevel);
myMapper->SetLookupTable(myLookupTable);

Upvotes: 1

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