如何使用 vtkImageActor(或 vtkActor)设置窗口宽度/窗口中心? [英] How to set Window Width/Window Centers with vtkImageActor (or vtkActor)?

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问题描述

我想在使用 vtkImageActor/vtkActor 时设置 Windows Width/Windows Center 值.但我找不到解决它的方法.(如果我用vtkActor2d也可以,但是我不想用)

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)

推荐答案

vtkWindowLevelLookupTable 附加到您的映射器.

Attach a vtkWindowLevelLookupTable to your mapper.

基本示例:


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;

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);

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

这篇关于如何使用 vtkImageActor(或 vtkActor)设置窗口宽度/窗口中心?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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