async def merge_helper(cg: ChunkedGraph, request: Request):
from numpy import all
from numpy import abs
nodes = loads(await request.body())
assert len(nodes) == 2, "Only 2 points can be merged at this time."
atomic_edge, coords = _process_node_info(cg, nodes)
# limit merge span to 3 chunks
coord0 = cg.get_chunk_coordinates(atomic_edge[0])
coord1 = cg.get_chunk_coordinates(atomic_edge[1])
assert all(
abs(coord0 - coord1) < 4), "Chebyshev distance exceeded, max 3 chunks."
try:
resp = cg.add_edges(
user_id=request.headers.get("X-Forwarded-User",
str(request.client)),
atomic_edges=array(atomic_edge, dtype=uint64),
source_coords=coords[:1],
sink_coords=coords[1:],
)
except exceptions.LockingError as e:
raise exceptions.InternalServerError(e)
except exceptions.PreconditionError as e:
raise exceptions.BadRequest(e)
assert resp.new_root_ids is not None, "Could not merge selected supervoxels."
if len(resp.new_lvl2_ids):
await _remesh(cg, resp.operation_id, resp.new_lvl2_ids.tolist())
return resp
async def redo(request: Request, graph_id: str, int64_as_str: Optional[bool] = False):
from .edits_helpers import redo_helper
try:
result = await redo_helper(copy(get_cg(graph_id)), request)
except (exceptions.PreconditionError, exceptions.ChunkedGraphError) as e:
raise exceptions.BadRequest(e)
except Exception as e:
raise exceptions.InternalServerError(e)
return format_edit_result(result, int64_as_str)
async def split_preview(
request: Request, graph_id: str, int64_as_str: Optional[bool] = False
):
from .edits_helpers import split_preview_helper
try:
return await split_preview_helper(
copy(get_cg(graph_id)), request, int64_as_str=int64_as_str
)
except (exceptions.PreconditionError, exceptions.ChunkedGraphError) as e:
raise exceptions.BadRequest(e)
except Exception as e:
raise exceptions.InternalServerError(e)
async def redo_helper(cg: ChunkedGraph, request: Request):
operation_id = uint64(loads(await request.body())["operation_id"])
try:
resp = cg.redo(
user_id=request.headers.get("X-Forwarded-User",
str(request.client)),
operation_id=operation_id,
)
except exceptions.LockingError as e:
raise exceptions.InternalServerError(e)
except (exceptions.PreconditionError, exceptions.PostconditionError) as e:
raise exceptions.BadRequest(e)
if len(resp.new_lvl2_ids):
await _remesh(cg, resp.operation_id, resp.new_lvl2_ids.tolist())
return resp
async def split_helper(cg: ChunkedGraph, request: Request):
from collections import defaultdict
data_dict = _process_split_request_nodes(cg, loads(await request.body()))
try:
resp = cg.remove_edges(
user_id=request.headers.get("X-Forwarded-User",
str(request.client)),
source_ids=data_dict["sources"]["id"],
sink_ids=data_dict["sinks"]["id"],
source_coords=data_dict["sources"]["coord"],
sink_coords=data_dict["sinks"]["coord"],
mincut=True,
)
except exceptions.LockingError as e:
raise exceptions.InternalServerError(e)
except exceptions.PreconditionError as e:
raise exceptions.BadRequest(e)
assert resp.new_root_ids is not None, "Could not split selected segment groups."
if len(resp.new_lvl2_ids):
await _remesh(cg, resp.operation_id, resp.new_lvl2_ids.tolist())
return resp