#31 how to use Field2Image2D

[Ralph Altenfeld]

Hi,

I like to use the new file2image2D field functionality.
I was not able to visualize our typical 2D surface meshes. Please find a file dump and a test routine attached.

I got the following error:

Traceback (most recent call last):
File "test.py", line 11, in <module>
matPlotFig = f.field2Image2D(title='Temperature', barRange=(0,9), matPlotFig=matPlotFig)
File "../../mupif/Field.py", line 458, in field2Image2D
xMin = vertexPointsArr[:,0].min()
IndexError: too many indices for array</module>

Can you help me to figure out what's wrong?
Thank you.

\Ralph

[Vit Smilauer]

Dear Ralph,
the default parameter elevation = (-1.e-6, 1.e-6) picks up the 3rd coordinate, which should be 0.15 for your case. So calling field2Image2D() resulted in an empty dataset. I added log info into Field class that a dataset is empty to prevent such situations.

The fix is easy, just call
matPlotFig = f.field2Image2D(title='Temperature', elevation = (0.014, 0.016), figsize = (8,8), matPlotFig=matPlotFig)

At the end of script, the script kills the window and it disappears. If you need to keep the plot window open, call matPlotFig.waitforbuttonpress() or f.field2Image2DBlock().

Hope it helps. Vit

[Ralph Altenfeld]

Thanks, Vit. Works like a charme.
(Shame on me. I set the wrong elevation values when testing this.)

Next question is:
Can I do this with multiple plots in a loop?

For example:
matPlotFig1 = fieldTemperature.field2Image2D(
title='Temperature',
elevation = (0.014, 0.016),
figsize = (8,8),
matPlotFig=matPlotFig1)

  matPlotFig2 = fieldConcentration.field2Image2D(
                  title='Concentration', 
                  elevation = (0.014, 0.016), 
                  figsize = (8,8), 
                  matPlotFig=matPlotFig2)

Unfortunately, only the second plot is updated in this case.

\Ralph