Rayleigh User Telecon, Monday April 13, 11 a.m. MST

(Apologies for forgetting to post this here until so late!)
Hi Everyone,

I wanted to remind you all of the telecon on Monday at 11 a.m., MST.

If you are interested, please tune via Zoom at:

Meeting ID: 786 687 179

We will be going over how to turn Rayleigh’s 3-D output into Vapor-compatible data sets (versions 2 and 3 of Vapor). Please read below for an agenda and how you should prepare if you wish to follow along on your own computer. As before, I will record the Zoom session and post it online.

Topics of discussion are:

  1. Rayleigh’s 3-D output format + upcoming changes

  2. The interp3d command-line tool for interpolating spherically-gridded data onto a uniform Cartesian grid.

  3. Vapor wavelet transform tools that convert output from (2) into Vapor format.

  4. A Jupyter Python notebook that provides easy-to-use scripting wrappers for tools (2) and (3).

  5. Volume rendering with Vapor 2 and 3

  6. Flow visualization (e.g., B-fields or streamlines) with Vapor 2 and 3


  1. Update to the latest version of Rayleigh’s master branch here: https://github.com/geodynamics/Rayleigh

  2. [Suggested] Set up the Rayleigh conda-development environment as described here: https://rayleigh-documentation.readthedocs.io/en/latest/doc/source/User_Guide/devel_environment.html . Doing so will should ensure you compile/run interp3d on Linux and Mac + run the Jupyter notebook, provided Vapor is installed.

  3. With your environment active, in the Rayleigh directory run “make interp3d.gnu” or “make interp3d.intel” as appropriate. A program named ‘interp3d’ should appear in the Rayleigh/bin directory.

  4. Test it: interp3d -h should yield output describing how to use the program. If you see that output, you’re probably good.

  5. Install Vapor 3 and/or Vapor 2. I will illustrate both. If you’re interested in rendering field/flow lines, I highly suggest getting a copy of Vapor 2.x. I will place a Linux tarball alongside the sample data. Vapor 3 is essentially a complete teardown/rebuilt of Vapor and the flow-line rendering isn’t quite up to snuff yet, as I will show.

  6. Sample data is provided at: https://man-bat.colorado.edu/~feathern/ At the moment, I only have raw Rayleigh output, but will upload the corresponding Vapor data set and, if time allows, some intermediary Cartesian cube interpolates.

I look forward to seeing you on Monday.

All the best,