Fill blue devices parameters from SPICE model

[ra3xdh]

This is follow-up for #679. It would be good to add a possibility to convert the SPICE model to unified nonlinear device parameters from the GUI. I propose to add a special button like Fill from SPICE model in the component dialog. The user can press this button and insert the SPICE modelcard .MODEL code. The device properties will be filled automatically. This button should be available for the following devices: Diode, BJT, MOSFET, JFET

[tomhajjar]

How would you handle parameters not used by ngspice or extra info used by LTspice like "mfg=xxx"? Would you strip them or pass them through? ngspice doesn't like mfg=xxx

Simplified Mosfet "Thermal" models, Rthjc=0.4 Cthj=5e-3?

Another issue is units used. Would you use 1e-9 or 1n as is? Leading 0? 0.01 versus .01

[ra3xdh]

How would you handle parameters not used by ngspice or extra info used by LTspice like "mfg=xxx"?

The only option is to ignore such model parameters. Qucsconv also ignores them.

Another issue is units used. Would you use 1e-9 or 1n as is? Leading 0? 0.01 versus .01

It is possible to apply the units conversion. Qucs-S parser accepts both notation. It should be possible to implement a checkbox like Convert number notaiton in the model import dialog.

[ra3xdh]

The proposed feature implemented by #795

[ra3xdh]

Here is a new look of the component properties dialog and new SPICE model import window.

[ra3xdh]

The feature implemented by #795. Closing this.

[tomhajjar]

If leading zero is missing does it add it?

[ra3xdh]

No, it currently cannot handle missing leading zero. I am not sure if Ngspice allow such notation. I may add a patch implementing this conversion.

[tomhajjar]

Another issue was some Spice models using the Greek µ instead of u. ngspice doesn't like µ

[ra3xdh]

Another issue was some Spice models using the Greek µ instead of u. ngspice doesn't like µ

I cannot do anything with this. Ngspice doesn't support Unicode.