calcFEMODF

(method of PoleFigure)

PDF to ODF inversion

calcFEMODF is one of the main function of the MTEX toolbox. It estimates an ODF from given Polefigure intensities by fitting an ODF that consists of a large number of unimodal ODFs to the data. It does so by minimizing a least squares functional. The command calcODF supports automatic ghost correction and the zero range method. The function calcFEMODF has several options to control convergence, resolution, smoothing, etc. See below for a complete description.

Syntax

[odf,alpha] = calcFEMODF(pf,'param1',val1,'param2',val2)

Input

pf

PoleFigure

param,val Parameters and values that control calcFEMODF
Parameter Description
'resolution'

localization grid for the ansatz fucntions (default = 3/2 resolution(pf))

'iterMax'

maximum number of iterations (default = 11)

'regularisation'

weighting coefficient lambda (default = 0)

param Options that control the calcFEMODF behavior
Parameter Description
'zeroRange'

apply zero range method (default = )

'noGhostCorrection'

omit ghost correction

Output

odf

reconstructed @FEMODF

alpha

scaling factors, calculated during reconstruction

See also

PoleFigure2odf, ODF_demo, PoleFigureSimulation_demo, loadPoleFigure, ImportPoleFigureData, examples_index