k-Wave

1. grump6
   

   Member
   Joined: Apr '16
   Posts: 2

   Hello Dr. Treeby,
   I have found your Toolbox very interesting! I have been playing with Elastic Wave sims in Octave (Octave 4.0.1 on Windows 10 64-bit). I note the following errors so far:
   1. movegui is not implemented in Octave yet. Commenting out the corresponding line in scaleFig.m allowed execution to proceed.
   2. Sometimes the structure plotscale(:) in pstdElastic2D.m (lines 805 and 815) contains NaN values. This causes the imagesc function to fail. I used a workaround where I test for NaN values using isnan and set the scale to 1.0 instead. Is there a way to disable the default visualization and generate it on demand instead?
   3. checkStability fails on elastic wave problems because the medium data structure does not contain a sound_speed member. Instead, it has a sound_speed_compression (or ..._shear) member.

   I had a question about elastic wave sims that I will post to the other sub-forum.

   Thank you for an excellent, and well supported piece of software!
   Regards,
   Raj

   Posted 8 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi Raj,

   Thanks for the details on using the elastic code with Octave. I have not tested it, so it is useful feedback. Regarding your second question, you can turn off the plotting completely by using 'PlotSim', false. Unfortunately, more complicated plotting options are not currently possible.

   The function checkStability is only for the fluid code (kspaceFirstOrderND). Are you just reporting that it doesn't work, or does it somehow get called by the elastic code by mistake when running in Octave?

   Thanks,

   Brad.

   Posted 8 years ago #

3. grump6
   

   Member
   Joined: Apr '16
   Posts: 2

   Hello Brad,

   Thanks for the tip on PlotSim.

   I'm just reporting that it does not work for elastic sims - I tried calling it because I am having stability problems with elastic sims (similar to user Bellamy's issues in his post: http://www.k-wave.org/forum/topic/stability-of-elastic-simulations).

   Thanks,
   Raj

   Posted 8 years ago #

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