Opening files regardless of current simulation mode

[VIPQualityPost]

If you have some schematic with Qucsator mode, and one with Ngspice mode, it's only possible to open these files "correctly" if you set the simulator mode in advance of trying to open the file (which requires remembering what exactly elements you used when saving the schematic). Loading the file incorrectly and then fixing the simulator mode afterwards does not fix this problem as the components are not properly loaded.

I think it should be possible to store the simulator type in the serialized Properties tag of the schematic format, and then change the mode when opening files so that everything opens correctly. Do you think this is a useful addition? I am happy to try implement this myself unless you would like to.

[ra3xdh]

This question was asked and answered several times before. The simulator type is not stored in schematic properties intentionally. This is done to provide the possibility to simulate one schematic with different simulators and compare result. Also the required simulator may be not installed (like Xyce).

The implementing of this feature is not as straightforward as it seems. It's need to process a lot of boundary cases. Otherwise we will be flooded by tons of false positive bug reports. Also the backward compatibility of schematics should be ensured. You may try to add this feature. The logic should be the following:

• Put the Simulator feature in the File->Document settings dialog. It should be stored in <Properties> section of the SCH file.
• If the opened schematic has different simulator setting, set the simulator setting in the combo box automatically. Give user an information message, don't set the simulator silently.
• If the simulator is not installed give user a warning and don't change the setting.
• When schematic is saved set the document property according to global simulator setting.
• Don't change the simulator setting if old schematic if opened
• If schematic file tab is switched and has different setting in document properties, change the simulator. If the document property not specified, don't change the simulator.

[VIPQualityPost]

Yes, that logic was what I had in mind too... I will give it a try!