Some users strongly prefer to use a different Euler convention for calibration, such as extrinsic XYZ. It is easy to convert angles from one Euler convention to another. However, it is difficult to convert boundary conditions (min/max ranges for each angle) from one convention to another.
So we add the ability to choose the Euler convention to use in calibration. This allows the min/max ranges to be specified in lmfit using that convention.
Some users strongly prefer to use a different Euler convention for calibration, such as extrinsic XYZ. It is easy to convert angles from one Euler convention to another. However, it is difficult to convert boundary conditions (min/max ranges for each angle) from one convention to another.
So we add the ability to choose the Euler convention to use in calibration. This allows the min/max ranges to be specified in lmfit using that convention.