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Allow explicit remapping of segment 0 during MeshTask #155

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Allow explicit remapping of segment 0 during MeshTask #155

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83cd392
feat: Expose `remap_table` param to `create_meshing_tasks`
nkemnitz Jun 30, 2023
19123aa
fix: Allow explicit remapping of 0 during MeshTask
nkemnitz Jun 30, 2023
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5 changes: 4 additions & 1 deletion igneous/task_creation/mesh.py
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Original file line number Diff line number Diff line change
Expand Up @@ -161,7 +161,8 @@ def create_meshing_tasks(
mesh_dir=None, cdn_cache=False, dust_threshold=None,
object_ids=None, progress=False, fill_missing=False,
encoding='precomputed', spatial_index=True, sharded=False,
compress='gzip', closed_dataset_edges=True, dust_global=False
compress='gzip', closed_dataset_edges=True, dust_global=False,
remap_table=None,
):
shape = Vec(*shape)

Expand Down Expand Up @@ -208,6 +209,7 @@ def task(self, shape, offset):
sharded=sharded,
compress=compress,
closed_dataset_edges=closed_dataset_edges,
remap_table=remap_table,
)

def on_finish(self):
Expand All @@ -230,6 +232,7 @@ def on_finish(self):
'compress': compress,
'closed_dataset_edges': closed_dataset_edges,
'dust_global': bool(dust_global),
'remap_table': remap_table,
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If the remap table is big, this could cause the provenance file to become gigantic. Do we need to think about this? Maybe just record the size of the remap table above a certain size?

},
'by': operator_contact(),
'date': strftime('%Y-%m-%d %H:%M %Z'),
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3 changes: 2 additions & 1 deletion igneous/tasks/mesh/mesh.py
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Original file line number Diff line number Diff line change
Expand Up @@ -291,7 +291,8 @@ def _remap(self, data):
}

remap = self.options['remap_table']
remap[0] = 0
if 0 not in remap:
remap[0] = 0

data = fastremap.mask_except(data, list(remap.keys()), in_place=True)
return fastremap.remap(data, remap, in_place=True)
Expand Down