P-H diagram in Axes tool of App designer

Hi,

I want to reproduce the p-h diagram in App designer usin the 'Axes' component during the simulation of my simulink refrigeration model. My model has sensors elements from Simscape which provide the respective outputs of pressure and enthalpy necessary for the p-h diagram. However, I do not know how the code should be in UIAxes callback in order to take the live data from the sensors and then plot it in the 'Axes' component.

does anybody know how to do it?

Thanks in advance for your comments!