For the spatial stagger this is not as clearly written. Assuming we have a field B/x which is offset by half a grid cell in a 1D simulation.
The attibute postion will have to be 0.5.
Will the value of positionOffset be set to 0.5*dx or not? I do not find a clear statement regarding this question. I believe it should, but I believe we should make it explicitly clear, that the information of a spatial stagger is saved in two distinct places. Or am I missing something?
I was looking into the grid staggering and relalized that the temporal stagger is expressed in terms of a non-zero
timeOffsetas clearly stated here: https://github.com/openPMD/openPMD-standard/blob/latest/STANDARD.md#required-attributes-for-the-basepathFor the spatial stagger this is not as clearly written. Assuming we have a field
B/xwhich is offset by half a grid cell in a 1D simulation.postionwill have to be0.5.positionOffsetbe set to0.5*dxor not? I do not find a clear statement regarding this question. I believe it should, but I believe we should make it explicitly clear, that the information of a spatial stagger is saved in two distinct places. Or am I missing something?Let me know if you concur and I will create a PR.
Related to https://github.com/SmileiPIC/Smilei/issues/682