Hi paraview users, I hope this is a simple question. I'm trying to visualize a 3D vector field, and wonder what is the format of the data. I have a .nrrd file with header like:
dimension: 4 space: left-posterior-superior sizes: 3 256 256 130 paraview seems not load the data correctly, because it only show a single slice no matter what 'representation' I choose. Then I use unu tool (for nrrd file) to permute the dimension order and now the size is: [256 256 130 3]. I loaded the data into paraview and can see 3D cube. I guess I can use arrow glyph to visualize the vector at each voxel? But I couldn't make it work. The arrow always point to same direction. I may need to read the document more carefully, but is there an simple instruction for vector image visualization (3D volume image where each voxel is a vector)? Thank your for your help .
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