Multi-Component Display menu grayed out when loading 4D NiFTI files
dinsdale3 opened this issue · 2 comments
On version 4.0.0, when loading a 4D image file (NiFTI in my case), if I click on the arrow at the top of the viewport next to the filename, the Multi-Component Display menu item is grayed out. With the same image, on version 3.8.0 this item can be selected and the individual 4th dimension images can be chosen (as well as the Mag, Max, and Avg).
On version 4.0.0, Edit/4D DIsplay/Toggle 4D Replay does work, so the 4th dimension is being at least partially supported.
Build date Thu02/16/2023
Git commit hash 3bc2bdc
Git commit date 2023-02-16 14:11:06 -0500
Git branch master
Build site name pylenovo_win11
Build OS Windows-10.0.22621 AMD64
Build type Release
ITK version 5.2.1
VTK version 9.1.0
Qt version 6.2.4
CMake version 3.25.1
C compiler MSVC 19.34.31935.0
C++ compiler MSVC 19.34.31935.0
In 4.0 we no longer read 4D images as multi-component images. So the grey out of multi-component menu is by-design. The multi-component menu now is only for images with number of components greater than 1.
There are a lot of features added in 4.0 to support 4D images navigation and analysis such as 4D cursor location, 4D replay (both in the menu and the layer inspector), intensity under cursor across timepoints, and more. See this page for more info: http://www.itksnap.org/pmwiki/pmwiki.php?n=Documentation.NewFeaturesVersion40
I'm glad to hear this wasn't a bug. However, the change in functionality was confusing to at least this user (given the limited 4.0-specific documentation at this point).
I have some related questions but will move them to the user discussion list as this is no longer a 'bug' report. Thanks