ear VTK,
Could you please share more information about how to transform coordinate between world coordinate system and volume(data) coordinate system?
In my project, a NIFTI volume data is loaded.And I displayed this volume based on “vtkGPUVolumeRayCastMapper”.
In this case, I am not quite clear about the difference between world coordinate and volume coordinate.
When I picked a point based on “vtkPropPicker”, I think this point belongs to world coordinate.
How can I transform it to volume space?
Thank you so much for your help!
Jiangyuan Zhu