vtk中用到的函数总结，待续_vmtk 中 vmtkscripts 函数汇总-优快云博客

本文链接：https://blog.youkuaiyun.com/simple2life/article/details/6034137

本文介绍了如何使用SetValue函数设置等高线值，并详细解释了其参数含义与使用方法。此外，还提供了将quarter中的raw格式图像转换为适用于vtkVolume16Reader类的mha格式的具体步骤。

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SetValue

Generate numContours equally spaced contour values between specified range. Contour values will

include min/max range values.

No worries! It’s not very clear in the docs.
So for instance, lets say you want to generate 1 contour with a value of 100.
The call would look like this:
contour->SetValue(0, 100);

If you wanted to change the value of this contour to 200 your call would be like this:
contour->SetValue(0, 200);

Now if you wanted to generate another contour at 50 and keep the contour at 200 (thus totaling 2

contours) , after making the previous call you would add this:

contour->SetValue(1,50);

So in summary, if you just want one contour the contour number is always 0. If you want more than one

value the contour number is assigned by you and is <= total number of contours.
Gerrick

quarter里的数据是raw格式的，为了适应vtkVolume16Reader这个类的方法，把这些raw格式的图像都写成后缀为1,2,3...你可以写一个头文件，格式为mhd或者mha的，内容如下：

NDims = 2
DimSize = 64 64 1
ElementType = MET_USHORT
ElementSpacing = 1.0 1.0 1.0
ElementByteOrderMSB = False
ElementDataFile = 1.raw

这上面的内容复制到记事本里，然后保存了1.mha.
接着在quarter里把quarter.1重命名为"1.raw"，把"1.mha"和"1.raw"放在同一个目录下，然后可以用itk自带的ImageViewer打开1.mha，就能看到这个图像长什么样子了。其他的quarter下的图像也是一样。

可以参考vtkMetaImageReader这个类。

用itkSnap也能打开，itkSnap下载地址：http://www.itksnap.org/pmwiki/pmwiki.php