Dear all,

I am trying to make a small library for cryogenic thermal analysis purposes. I created a ResistorPowerLaw  model which uses certain parameters from a material  record in the library:

package Material
   extends Modelica.Icons.MaterialPropertiesPackage;
 
   record BaseData       
      extends Modelica.Icons.Record;   
      parameter Real a=1 "Temperature proportionality coefficient";
      parameter Real b=1 "Temperature power coefficient";
   end BaseData;

   record Nb "Niobium"
      extends ThermalCryogenics.Material.BaseData(a=4, b=1);
   end Nb;
….


In OmEdit this is working now (without using the choicesAllMatching statement, the correct full material name + path just needs to be typed in).

However in the diagram view I could not find a way to display which material is selected for the model instance. I would like to include the selected material name (or any of the variables in the material record)  in the graphical annotation of the ResistorPowerLaw instance. For some reason the macro "%material.a" doesn't work (it doesn't display the value, just the literal text, for instance "ThermalCryogenics.Material.Nb().a" when I selected Nb). The variable material.a is however known within the ResistorPowerLaw model (used in the equation section), check model yields no errors and the model runs fine. I don't know how to modify or truncate the displayed string in the graphic annotation.

Any suggestions are welcome!