Storing the distance to source

[aalbino2]

I run into a use case where there are multiple substrate in the chamber but the distance from the substrates is not specified one by one, rather the distance from the center of the substrates holder is reported.

So in the user-specific plugin the distance-to-source is placed into the Source class, not into the SampleParameters.

I can clearly normalize it also in SampleParameters, my only concern is that the value I would write there is actually wrong because it is the distance from the center of the holder.

@hampusnasstrom is the distance in your use cases specified for each single substrate?

Should I keep this substrateholder-source distance in the Source class within the user-defined plugin without harmonizing it with the standard structure of this plugin?

[hampusnasstrom]

In the end it is the distance to each substrate that is important. That being said we really need to introduce the positions I was working on some time ago. Because even the distance to the substrate is ambiguous without knowing where on the substrate this refers to as well as the relative directions of the source and substrate normals.