upxo.jpops.jpops module

Junction-point detection on grain-boundary segment maps.

findJP collects coordinates shared by two or more boundary segments per grain; separate_junctions_by_order bins them by junction order (T-junction, quadruple point, …). Used with 2D MC GB pipelines (upxo.gbops.mcgb2dops).

Import:

import upxo.jpops.jpops as jpOps

upxo.jpops.jpops.findJP(segments)

Find multi-segment junction points for each central grain.

Parameters:

segments (dict) – cg → {neighbour_gid: Nx2 coordinate array} of shared boundary points between central grain cg and each neighbour.

Returns:

cg → array of [x, y, order] where order is how many segments meet at that point (plus bookkeeping offset used historically).

Return type:

dict

upxo.jpops.jpops.separate_junctions_by_order(junctions, include_empty=True)

Partition junction points by order (2, 3, 4, …).

Parameters:

• junctions (dict) – Output of findJP() (or same shape).

• include_empty (bool, optional) – If True, include empty order keys between min and max order.

Returns:

order → {gid: Mx2 coordinates for junctions of that order}.

Return type:

dict