apply an arbitrary spatial transformation to a grain map
Applies fun to every vertex of the grain boundaries, leaving mean orientations, phase and all other properties untouched. Unlike rotate, fun need not be a rigid transformation - it may be any map from position to position. Since all grain boundary quantities (vertices, boundary segments, triple points, ...) are derived from the same underlying vertex list, transforming it is enough to keep the whole grain map consistent.
Useful together with EBSD/transform to check that reconstructing grains commutes with a spatial transformation, i.e. that calcGrains on a transformed EBSD map agrees with transforming the grains reconstructed from the untransformed map.
Syntax
grainsT = transform(grains,fun)Input
| grains | grain2d |
| fun | function handle, vector3d -> vector3d, or a spatialTransform |
Output
| grains | grain2d with transformed vertices |