merge

(method of grain2d)

merge grains along special grain boundaries

Whenever two grains share a grain boundary that is in the list gB both grains are merged and the common grain boundary is removed. All the properties of the unmerged grains are removed in the merged grains, since there is no common convention for a mean. In case of merging allong small angle grain boundaries one can force MTEX to compute a new meanOrientation using the option calcMeanOrientation.

Syntax

[grainsMerged,parentId] = merge(grains,gB)

% compute new meanOrientations for the grains
[grainsMerged,parentId] = merge(grains,gB,'calcMeanOrientation')

Input

`grains`	grain2d
`boundary`	grainBoundary

Output

`grainsMerged`	grain2d
`parentId`	a list of the same size as grains containing the ids of the merged grains

Example

mtexdata small
grains = smooth(calcGrains(ebsd))

 loading data ...
 saving data to /home/hielscher/mtex/master/data/small.mat
 
grains = grain2d  
 
 Phase  Grains  Pixels     Mineral  Symmetry  Crystal reference frame
     0     292    1197  notIndexed                                   
     1      50    1952  Forsterite       mmm                         
     2      61     290   Enstatite       mmm                         
     3      62     282    Diopside     12/m1       X||a*, Y||b*, Z||c
 
 boundary segments: 2775
 triple points: 187
 
 Properties: GOS, meanRotation