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documentation:program_flow [2011/11/07 22:50]
142.103.140.43
documentation:program_flow [2014/05/09 18:34] (current)
macke
Line 1: Line 1:
 +====== Program Flow ======
  
 +In the following the program flow of some important functions is sketched
 +
 +
 +===== Reflectivity =====
 +
 +  - Read current state from the graphical user interface and check values.
 +  - if "Set optical constants automatically is turned on"
 +    - Read .db or .e files of each layer. If no file found display error message.
 +    - if magnetization is turned on read .m files of each layer. If no file found display error message.
 +  - Fill dielectric tensor with proper values of the diagonal and off-diagonal elements.
 +  - Run script ("​BeforeCalculation"​)
 +  - Calculate reflectivity
 +  - Apply post modifications
 +
 +===== Calculation of the error for each dataset =====
 +
 +  - Check if fit flag is set, otherwise return
 +  - Make a private copy of the dataset
 +  - Apply qz-shift, energy-shift,​ scaling and translation to the datasets energy table and qz table.
 +  - Apply post-modifications to the dataset.
 +  - Check, which type of dataset this is. This depends on the data in the dataset. The priority is reflectivity > asymmetry > Rp and Rm. Separate datasets if you want to calculate the different curves. ​
 +  - Calculate the corresponding curve for the same datapoints as the measurement. (This is equivalent to the "use dataset points for simulatio"​
 +  - Calculate Chi^2 between dataset and simulation.
 +
 +===== Energy scan =====
 +
 +
 +
 +===== Show Delta and Beta Spectra =====
 +
 +
 +===== Script Execute =====