def genMatch(self, axis, interval, matchnames):
"""Helper function for expertPaths.
Parameters
----------
axis : is a partitioned axis, either time or vertical level or forecast.
interval : is an index interval (istart, iend).
matchnames : is a partially filled list [id, timestart, timeend, levstart, levend, fc] If a filemap
is used, matchnames has indices, otherwise has coordinates.
Function : modifies matchnames based on axis and interval, returns the modified matchnames tuple.
"""
if axis.isTime():
if hasattr(self.parent, 'cdms_filemap'):
start = interval[0]
end = interval[1]
else: # Use template method
time0 = axis[interval[0]]
time1 = axis[interval[1] - 1]
isabs = (string.find(axis.units, " as ") != -1)
if isabs:
start = cdtime.abstime(time0, axis.units)
end = cdtime.abstime(time1, axis.units)
else:
cal = axis.getCalendar()
start = cdtime.reltime(time0, axis.units).tocomp(cal)
end = cdtime.reltime(time1, axis.units).tocomp(cal)
matchnames[1] = start
matchnames[2] = end
elif axis.isForecast():
start = axis.getValue()[interval[0]]
end = axis.getValue()[interval[1] - 1]
matchnames[5] = start
matchnames[6] = end
else:
if hasattr(self.parent, 'cdms_filemap'):
start = interval[0]
end = interval[1]
else:
start = int(axis[interval[0]])
end = int(axis[interval[1] - 1])
matchnames[3] = start
matchnames[4] = end
return matchnames
def genMatch(self, axis, interval, matchnames):
"""Helper function for expertPaths.
axis is a partitioned axis, either time or vertical level or forecast.
interval is an index interval (istart, iend).
matchnames is a partially filled list [id, timestart, timeend, levstart, levend, fc]
If a filemap is used, matchnames has indices, otherwise has coordinates.
Function modifies matchnames based on axis and interval,
returns the modified matchnames tuple.
"""
if axis.isTime():
if hasattr(self.parent,'cdms_filemap'):
start = interval[0]
end = interval[1]
else: # Use template method
time0 = axis[interval[0]]
time1 = axis[interval[1]-1]
isabs = (string.find(axis.units," as ")!=-1)
if isabs:
start = cdtime.abstime(time0,axis.units)
end = cdtime.abstime(time1,axis.units)
else:
cal = axis.getCalendar()
start = cdtime.reltime(time0,axis.units).tocomp(cal)
end = cdtime.reltime(time1,axis.units).tocomp(cal)
matchnames[1] = start
matchnames[2] = end
elif axis.isForecast():
start = axis.getValue()[interval[0]]
end = axis.getValue()[interval[1]-1]
matchnames[5] = start
matchnames[6] = end
else:
if hasattr(self.parent,'cdms_filemap'):
start = interval[0]
end = interval[1]
else:
start = int(axis[interval[0]])
end = int(axis[interval[1]-1])
matchnames[3] = start
matchnames[4] = end
return matchnames
def varFiles(var):
npart = 0
ndim = 0
for (axis, start, length, true_length) in var.domain:
if hasattr(axis, 'partition'):
npart = npart + 1
if npart == 1:
part1 = axis
npart1 = ndim
elif npart == 2:
part2 = axis
npart2 = ndim
else:
raise TooManyPartitions, variable.id
ndim = ndim + 1
pathlist = []
timeInterval = levelInterval = None
# No partitioning
if npart == 0:
matchnames = [var.id, None, None, None, None]
template = var.getTemplate()
filename = cdms.variable.getPathFromTemplate(template, matchnames)
pathlist.append((filename, matchnames[:], timeInterval, levelInterval))
elif npart == 1:
(axis, startelem, length, true_length) = var.domain[npart1]
template = var.getTemplate()
partition = axis.partition
for interval in partition:
if axis.isTime():
time0 = axis[interval[0]]
time1 = axis[interval[1] - 1]
isabs = (string.find(axis.units, " as ") != -1)
if isabs:
start = cdtime.abstime(time0, axis.units)
end = cdtime.abstime(time1, axis.units)
else:
cal = axis.getCalendar()
start = cdtime.reltime(time0, axis.units).tocomp(cal)
end = cdtime.reltime(time1, axis.units).tocomp(cal)
matchnames = [var.id, start, end, None, None]
timeInterval = interval
else:
start = int(axis[interval[0]])
end = int(axis[interval[1] - 1])
matchnames = [var.id, None, None, start, end]
levelInterval = interval
filename = cdms.variable.getPathFromTemplate(template, matchnames)
pathlist.append(
(filename, matchnames[:], timeInterval, levelInterval))
elif npart == 2:
axis1 = var.domain[npart1][0]
axis2 = var.domain[npart2][0]
partition1 = axis1.partition
partition2 = axis2.partition
template = var.getTemplate()
for interval1 in partition1:
if axis1.isTime():
isabs = (string.find(axis1.units, " as ") != -1)
time0 = axis1[interval1[0]]
time1 = axis1[interval1[1] - 1]
if isabs:
start = cdtime.abstime(time0, axis1.units)
end = cdtime.abstime(time1, axis1.units)
else:
cal = axis1.getCalendar()
start = cdtime.reltime(time0, axis1.units).tocomp(cal)
end = cdtime.reltime(time1, axis1.units).tocomp(cal)
matchnames = [var.id, start, end, None, None]
timeInterval = interval1
else:
start = int(axis1[interval1[0]])
end = int(axis1[interval1[1] - 1])
matchnames = [var.id, None, None, start, end]
levelInterval = interval1
for interval2 in partition2:
if axis2.isTime():
isabs = (string.find(axis2.units, " as ") != -1)
time0 = axis2[interval2[0]]
time1 = axis2[interval2[1] - 1]
if isabs:
start = cdtime.abstime(time0, axis2.units)
end = cdtime.abstime(time1, axis2.units)
else:
cal = axis2.getCalendar()
start = cdtime.reltime(time0, axis2.units).tocomp(cal)
end = cdtime.reltime(time1, axis2.units).tocomp(cal)
matchnames[1] = start
matchnames[2] = end
timeInterval = interval2
else:
start = int(axis2[interval2[0]])
end = int(axis2[interval2[1] - 1])
matchnames[3] = start
matchnames[4] = end
levelInterval = interval2
filename = cdms.variable.getPathFromTemplate(
template, matchnames)
pathlist.append(
(filename, matchnames[:], timeInterval, levelInterval))
return pathlist
def varFiles(var):
npart = 0
ndim = 0
for (axis,start,length,true_length) in var.domain:
if hasattr(axis,'partition'):
npart = npart+1
if npart==1:
part1 = axis
npart1 = ndim
elif npart==2:
part2 = axis
npart2 = ndim
else:
raise TooManyPartitions, variable.id
ndim = ndim+1
pathlist = []
timeInterval = levelInterval = None
# No partitioning
if npart==0:
matchnames = [var.id,None,None,None,None]
template = var.getTemplate()
filename = cdms.variable.getPathFromTemplate(template,matchnames)
pathlist.append((filename, matchnames[:], timeInterval, levelInterval))
elif npart==1:
(axis,startelem,length,true_length) = var.domain[npart1]
template = var.getTemplate()
partition = axis.partition
for interval in partition:
if axis.isTime():
time0 = axis[interval[0]]
time1 = axis[interval[1]-1]
isabs = (string.find(axis.units," as ")!=-1)
if isabs:
start = cdtime.abstime(time0,axis.units)
end = cdtime.abstime(time1,axis.units)
else:
cal = axis.getCalendar()
start = cdtime.reltime(time0,axis.units).tocomp(cal)
end = cdtime.reltime(time1,axis.units).tocomp(cal)
matchnames = [var.id,start,end,None,None]
timeInterval = interval
else:
start = int(axis[interval[0]])
end = int(axis[interval[1]-1])
matchnames = [var.id,None,None,start,end]
levelInterval = interval
filename = cdms.variable.getPathFromTemplate(template,matchnames)
pathlist.append((filename, matchnames[:], timeInterval, levelInterval))
elif npart==2:
axis1 = var.domain[npart1][0]
axis2 = var.domain[npart2][0]
partition1 = axis1.partition
partition2 = axis2.partition
template = var.getTemplate()
for interval1 in partition1:
if axis1.isTime():
isabs = (string.find(axis1.units," as ")!=-1)
time0 = axis1[interval1[0]]
time1 = axis1[interval1[1]-1]
if isabs:
start = cdtime.abstime(time0,axis1.units)
end = cdtime.abstime(time1,axis1.units)
else:
cal = axis1.getCalendar()
start = cdtime.reltime(time0,axis1.units).tocomp(cal)
end = cdtime.reltime(time1,axis1.units).tocomp(cal)
matchnames = [var.id,start,end,None,None]
timeInterval = interval1
else:
start = int(axis1[interval1[0]])
end = int(axis1[interval1[1]-1])
matchnames = [var.id,None,None,start,end]
levelInterval = interval1
for interval2 in partition2:
if axis2.isTime():
isabs = (string.find(axis2.units," as ")!=-1)
time0 = axis2[interval2[0]]
time1 = axis2[interval2[1]-1]
if isabs:
start = cdtime.abstime(time0,axis2.units)
end = cdtime.abstime(time1,axis2.units)
else:
cal = axis2.getCalendar()
start = cdtime.reltime(time0,axis2.units).tocomp(cal)
end = cdtime.reltime(time1,axis2.units).tocomp(cal)
matchnames[1] = start
matchnames[2] = end
timeInterval = interval2
else:
start = int(axis2[interval2[0]])
end = int(axis2[interval2[1]-1])
matchnames[3] = start
matchnames[4] = end
levelInterval = interval2
filename = cdms.variable.getPathFromTemplate(template,matchnames)
pathlist.append((filename, matchnames[:], timeInterval, levelInterval))
return pathlist
