Need help with python-plotting coolprop

[Rene Dworschak]

Hello,

the examples on "http://www.coolprop.org/coolprop/python-plotting.html" give me a little headache.

I am using python3.6 with jupyterlab and Coolprop 6.0.0

with  

import CoolProp

from CoolProp.Plots import PropertyPlot

ts_plot = PropertyPlot('Methane', 'TS')

ts_plot.calc_isolines(CoolProp.iQ, num=21)

ts_plot.title(r'$T,s$ Graph for Water')

ts_plot.xlabel(r'$s$ [kJ/kg K]')

ts_plot.ylabel(r'$T$ [K]')

ts_plot.grid()

ts_plot.show()

I getting...

 

C:\ProgramData\Anaconda3\lib\site-packages\CoolProp\Plots\Common.py:492: UserWarning: Please use "calc_sat_range" to calculate saturation and isoquality lines. Input ranges are discarded.

  UserWarning)

C:\ProgramData\Anaconda3\lib\site-packages\CoolProp\Plots\Plots.py:221: UserWarning: Detected an incomplete phase envelope, fixing it numerically.

  warnings.warn("Detected an incomplete phase envelope, fixing it numerically.")

C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\figure.py:1742: UserWarning: This figure includes Axes that are not compatible with tight_layout, so its results might be incorrect.

  warnings.warn("This figure includes Axes that are not "

 

Are there any examples for the calculation of the isolines for the Coolprop version 6.0.0 in python - the examples on the webpage seem a bit outdated.

For me it would be interesting to only mark selected isolines in the diagrams

thx,

René

[Ian Bell]

Very sadly, the plotting code is mostly broken, and we need some manpower injection to get it working properly. So far nobody has stepped up to fix the plotting code, which is a pity.

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