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Klippel Near Field Scanner on a Shoestring
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Old 14th July 2018, 02:08 PM   #341
3ll3d00d is offline 3ll3d00d  United Kingdom
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completed the port to matplotlib and got a contour plot working

pics

automatically detects where to put the gates (tbd how reliable this work, works for this data)

1.png

applying the window

2.png

resulting FR

3.png

and in contour form, interval between contours and colour scheme is selectable atm

4.png

still need to sort out the labelling of the x axis
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Old 14th July 2018, 08:22 PM   #342
3ll3d00d is offline 3ll3d00d  United Kingdom
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Quote:
Originally Posted by gedlee View Post
Getting good data out of CalSpatial will be a major milestone. The DataOut should be plotted to see if it looks reasonable.
I can call CalSpatial and get results back as expected & I added UI fields for the various parameters and set them to the stated defaults.

I assumed dataIn is the output from linToLog btw

spatial.png

I just need to know how to plot this and what good looks like.

I'll try getting the magnitude and plotting as a contour to see what that looks like.
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Old 14th July 2018, 09:09 PM   #343
3ll3d00d is offline 3ll3d00d  United Kingdom
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data converted to magnitude and plotted as a contour

spatial.png

no idea if this is correct, the process didn't explode when I called calspatial though so that gives some confidence the data is valid
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Old Yesterday, 12:50 AM   #344
mwmkravchenko is offline mwmkravchenko  Canada
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Old Yesterday, 09:22 PM   #345
aslepekis is offline aslepekis  United States
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Looking good!

I have to say, it's very exciting to see this progressing.
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Old Yesterday, 09:26 PM   #346
3ll3d00d is offline 3ll3d00d  United Kingdom
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any preferences on file formats to support for importing measurement data? I was thinking

- holm (single text file)
- REW (impulse as txt)
- ARTA (pir)
- wav
- dbl

anything else?

I think all of those are trivial except ARTA which has some custom binary format so I might not get to that until I feel the need (NB: trivial means practically no thought or code required as opposed to easy)
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Old Yesterday, 10:42 PM   #347
mwmkravchenko is offline mwmkravchenko  Canada
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FRD file type.

All the Smith & Larson stuff is also quite widespread.

I could provide an example of these files if you want.
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Old Today, 07:17 AM   #348
3ll3d00d is offline 3ll3d00d  United Kingdom
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this is working on the impulse response rather than FRD

what format does the smith & larson software export to? no obvious manual online so hard to tell what it can do
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