Hello,

I am interested in reviving this topic. The original intention was to look at velocity vectors (glyphs) which are not orientated according to the 3D velocity field but are just the 2D components. In the response provdied by Mathieu, I can clearly obtain the 2D component of interest.

So, we create a new reduced vector Uxz = U_X*iHat + U_z*kHat as part of Calculator filter. And I can visualize the in-plane (X-Z) vector field in the Glyph filter. However, the magntiude of Uxz is not available in order to color in the newly created in-plane field. The coloring only includes the original velocity field. Why is the magntidue information for Uxz not being propogated down to the available glyph coloring as an availble option?

I should add that my pipeline constitutes a calculator -> slice -> clip -> glyph. The calculator computes the vector shown above. Its result is available in the slice and clip, but not the glyph where I need it. The slice and clip are there to ensure I can isolate a physical section of the slice where I am interested in results.

**New note:** I found a workaround. By adding an additional calculator filter which computes sqrt(U_X^2 + U_Z^2) in the pipline as follows: calculator1 -> calculator2 -> slice -> clip -> glyph. In this pipeline, calculator 1 computes Uxz = U_X*iHat + U_z*kHat and calculator 2 sqrt(U_X^2 + U_Z^2). The result of calculator 2 is then available to the glyph filter. But, it seems redundant to do this. So, my original question still stands: **Why is the magntidue information for Uxz not being propogated down to the available glyph coloring as an availble option?**

Thank you for your help.