class OpTiledVolumeReader(Operator):
"""
An operator to retrieve volumes from a remote server that provides volumes via image tiles.
The operator requires a LOCAL json config file that describes the remote dataset and interface.
(See tiledVolume.py)
"""
DescriptionFilePath = InputSlot(stype="filestring")
Output = OutputSlot()
def __init__(self, *args, **kwargs):
super(OpTiledVolumeReader, self).__init__(*args, **kwargs)
self.tiled_volume = None
def setupOutputs(self):
if self.tiled_volume:
self.tiled_volume.close()
# Create a TiledVolume object to read the description file and do the downloads.
self.tiled_volume = TiledVolume(self.DescriptionFilePath.value)
self.Output.meta.shape = tuple(self.tiled_volume.output_shape)
self.Output.meta.dtype = self.tiled_volume.description.dtype
self.Output.meta.axistags = vigra.defaultAxistags(self.tiled_volume.description.output_axes)
self.Output.meta.prefer_2d = True
self.Output.meta.nickname = self.tiled_volume.description.name
def execute(self, slot, subindex, roi, result):
self.tiled_volume.read((roi.start, roi.stop), result)
return result
def propagateDirty(self, slot, subindex, roi):
assert slot == self.DescriptionFilePath, "Unknown input slot."
self.Output.setDirty(slice(None))
def cleanUp(self):
if self.tiled_volume:
self.tiled_volume.close()
super(OpTiledVolumeReader, self).cleanUp()
class OpTiledVolumeReader(Operator):
"""
An operator to retrieve volumes from a remote server that provides volumes via image tiles.
The operator requires a LOCAL json config file that describes the remote dataset and interface.
(See tiledVolume.py)
"""
DescriptionFilePath = InputSlot(stype='filestring')
Output = OutputSlot()
def __init__(self, *args, **kwargs):
super(OpTiledVolumeReader, self).__init__(*args, **kwargs)
self.tiled_volume = None
def setupOutputs(self):
if self.tiled_volume:
self.tiled_volume.close()
# Create a TiledVolume object to read the description file and do the downloads.
self.tiled_volume = TiledVolume(self.DescriptionFilePath.value)
self.Output.meta.shape = tuple(self.tiled_volume.output_shape)
self.Output.meta.dtype = self.tiled_volume.description.dtype
self.Output.meta.axistags = vigra.defaultAxistags(
self.tiled_volume.description.output_axes)
self.Output.meta.prefer_2d = True
self.Output.meta.nickname = self.tiled_volume.description.name
def execute(self, slot, subindex, roi, result):
self.tiled_volume.read((roi.start, roi.stop), result)
return result
def propagateDirty(self, slot, subindex, roi):
assert slot == self.DescriptionFilePath, "Unknown input slot."
self.Output.setDirty(slice(None))
def cleanUp(self):
if self.tiled_volume:
self.tiled_volume.close()
super(OpTiledVolumeReader, self).cleanUp()
