backannotation devices are ordinary symbols l

Question

< U01H2JMLFLL> backannotation devices are ordinary symbols like `spice probe sym` `ammeter sym` `ngspice probe sym` `ngspice get value sym` `ngspice get expr sym` See example in `sky130 tests test analog sym` Once these components are placed attached to the circuit and op operating point ran and saved backannotation is done by executing the command `ngspice annotate` I usually place a `launcher sym` component in the schematic This is a symbol with a `tclcommand= ngspice annotate` attribute If you ctrl Button 1 mouse click on it backannotation is done Doing this automatically means binding the `ngspice annotate` command to some events like a file load or a simulation run I personally prefer to update backannotation data manually May be i can add some attribute globally in the schematic properties like `annotate auto update=true` or similar to trigger this automatic update The goal is to avoid multiple useless updates if no new data is generated no new simulation for efficiency reasons