Hi Matt,

I am sorry that somehow my mailbox could not receive the mail successfully, so I copy and paste the previous discussion at the bottom of this email. I think my data is cell-centered, and I give YT my velocity field in the name of ["velx", "vely", "velz"]. Is there anything wrong?

Jia-Hung

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Hi Jia-Hung,

Are values stored as face-centered or cell-centered in your output?

-Matt

On Wed, Mar 5, 2014 at 5:21 AM, 吳佳鴻 <r00222055@ntu.edu.tw> wrote:

> Dear all,

> I’m new to YT. I encountered a problem when trying to plot the

> divergence and vorticity of a velocity field with an octree data

> structure similar to FLASH.

> I put a cylindrically symmetric velocity field into YT. So far I could

> get Velocity Magnitude Plot correctly and the Velocity vector looks