Function Reference edit page

Unlike most other texture analysis software MTEX does not have any graphical user interface. Instead the user is supposed to write scripts. Those scripts usually have the following structure

  1. import data
  2. inspect the data
  3. correct the data
  4. analyze the data
  5. plot and export the results of the analysis

During all these steps the data are stored as variables of different type. There are many different types of variables (called classes) for different objects, like vectors, rotations, EBSD data, grains or ODFs. The sidebar on the left lets you browse through all different MTEX class and the corresponding functions.

Variables are generated automatically when data are imported. E.g., the commands

fileName = [mtexEBSDPath filesep 'Forsterite.ctf'];
ebsd = EBSD.load(fileName,'convertEuler2SpatialReferenceFrame')
ebsd = EBSD (y↑→x)
 
 Phase  Orientations     Mineral         Color  Symmetry  Crystal reference frame
     0   58485 (24%)  notIndexed                                                 
     1  152345 (62%)  Forsterite  LightSkyBlue       mmm                         
     2   26058 (11%)   Enstatite  DarkSeaGreen       mmm                         
     3   9064 (3.7%)    Diopside     Goldenrod     12/m1       X||a*, Y||b*, Z||c
 
 Properties: bands, bc, bs, error, mad
 Scan unit : um
 X x Y x Z : [0, 36550] x [0, 16750] x [0, 0]
 Normal vector: (0,0,1)

imports data from the file fileName.ctf and stores them in the variable ebsd of type EBSD.

Next one can pass the variable ebsd to different MTEX function. For generating a phase plot is as simple as

plot(ebsd)

The grain structure is reconstructed by the command

grains = calcGrains(ebsd,'minPixel',5)
grains = grain2d (y↑→x)
 
 Phase  Grains  Pixels     Mineral  Symmetry  Crystal reference frame
     0    1410   37503  notIndexed                                   
     1     711  147812  Forsterite       mmm                         
     2     303   23896   Enstatite       mmm                         
     3     175    6826    Diopside     12/m1       X||a*, Y||b*, Z||c
 
 boundary segments: 69817 (3.3e+06 µm)
 inner boundary segments: 129 (5601 µm)
 triple points: 3151
 
 Properties: meanRotation, GOS

which returns a new variable of type grain2d, here called grains. This variable contains the entire grain structure. Finally, we my visualize this structure by

hold on
plot(grains.boundary,'linewidth',2)
hold off