want to get a parameter into ddsim SDAction at run time

[saraheno]

Hi,
I want to get a parameter into SDAction at run initialization time (instead of hard wiring it). For example, I want to kill photons with a probability and want to be able to input this probability at run time. Is there a way to do this? Right now I hard code that value.

[andresailer]

Yes, there is a way to do this.

Like

DD4hep/examples/DDG4_MySensDet/src/MyTrackerSDAction.cpp

Line 61 in f6f5b1c

declareProperty("CollectionName", m_collectionName);

If you were linking to your SDAction, we could a give more specific answer.