How do I plot data varying with both axes in App Designer?

I have a data like that:

The blue column is J and the blue row is Cp values. White boxes represent efficiency values.

And l need to make a graph like this one:

Blue lines in this graph represent constant efficiency values. I am trying to make a graph like above. Since the data is not a regular one, it did not make any sense to me. Can someone explain how to do it?

Answer 1

[Cris LaPierre]

Looks like a contour plot to me.

[piston_pim_offset]

Thanks for the answer.

Well, is there a way to get some equations or something to get the middle values at specified coordinates?

[Cris LaPierre]

Please provide an example of what you mean.

[piston_pim_offset]

There are some values corresponding to the coordinates, but I also need to see the value on a specific coordinate. Probably scatteredInterpolant will work for my task.

[Cris LaPierre]

Agreed. Might also consider looking into interp2.

[piston_pim_offset]

I'll try on Monday.