external tomography file usage

[DanBrox]

Trying to use an external 2D velocity model in SPECFEM2D by setting MODEL = external in the Par file. When I use the attached tomo_file.xyz

tomo_file.txt

I get simulation results where the P-wave velocity appears to be larger than anticipated:

Also, when I try plotting the velocity model using the 'Visualizations' tool, it shows the following min/max P-wave velocity information which doesn't seem to agree with the tomo_file.xyz. Suggestions as to what the problem is?

python3 plot_model_from_gll_or_binary_file.py proc000000_vp.bin
input file: proc000000_vp.bin

reading in file: proc000000_vp.bin

model: proc000000_vp
values min/max = 13866.453 / 13866.883

reading in position files...
proc000000_x.bin
proc000000_z.bin

mesh dimensions: x min/max = 0.0 / 6000.0
z min/max = 0.0 / 4000.0

plotting model...
plotted as proc000000_vp.jpg

done

[danielpeter]

@DanBrox please follow up on this issue SPECFEM/specfem2d#1175 (comment)