PseudoNetCDF.camxfiles.point_source package

Submodules

PseudoNetCDF.camxfiles.point_source.Memmap module

Memmap – point_source Memmap interface

class PseudoNetCDF.camxfiles.point_source.Memmap.point_source(*args, **kwds)

Bases: PseudoNetCDFFile

point_source provides a PseudoNetCDF interface for CAMx point_source files. Where possible, the inteface follows IOAPI conventions (see www.baronams.com).

ex:

>>> point_source_path = 'camx_point_source.bin'
>>> rows,cols = 65,83
>>> point_sourcefile = point_source(point_source_path,rows,cols)
>>> point_sourcefile.variables.keys()
['TFLAG', 'ETFLAG', 'TFLAG', 'XSTK', 'YSTK', 'HSTK', 'DSTK', 'TSTK',
 'VSTK', 'KCELL', 'FLOW', 'PLMHT', 'NSTKS', 'NO', 'NO2', ...]
>>> tflag = point_sourcefile.variables['TFLAG']
>>> tflag.dimensions
('TSTEP', 'VAR', 'DATE-TIME')
>>> tflag[0,0,:]
array([2005185,       0])
>>> tflag[-1,0,:]
array([2005185,  240000])
>>> v = point_sourcefile.variables['XSTK']
>>> v.dimensions
('NSTK',)
>>> v.shape
(38452,)
>>> v = point_sourcefile.variables['NO2']
>>> v.dimensions
('TSTEP', 'NSTK')
>>> v.shape
(25, 38452)
>>> point_sourcefile.dimensions
{'TSTEP': 25, 'NSTK': 38452}

Initialization included reading the header and learning about the format.

see __readheader and __gettimestep() for more info

classmethod isMine(path)

True if this file or object can be identified for use by this class. Useful to override for classes that can be initialized from disk.

PseudoNetCDF.camxfiles.point_source.Read module

Read – point_source Read interface

class PseudoNetCDF.camxfiles.point_source.Read.point_source(*args, **kwds)

Bases: PseudoNetCDFFile

point_source provides a PseudoNetCDF interface for CAMx point_source files. Where possible, the inteface follows IOAPI conventions (see www.baronams.com).

ex:

>>> point_source_path = 'camx_point_source.bin'
>>> rows,cols = 65,83
>>> point_sourcefile = point_source(point_source_path,rows,cols)
>>> point_sourcefile.variables.keys()
['TFLAG', 'ETFLAG', 'TFLAG', 'XSTK', 'YSTK', 'HSTK', 'DSTK', 'TSTK',
 'VSTK', 'KCELL', 'FLOW', 'PLMHT', 'NSTKS', 'NO', 'NO2', ...]
>>> tflag = point_sourcefile.variables['TFLAG']
>>> tflag.dimensions
('TSTEP', 'VAR', 'DATE-TIME')
>>> tflag[0,0,:]
array([2005185,       0])
>>> tflag[-1,0,:]
array([2005185,  240000])
>>> v = point_sourcefile.variables['XSTK']
>>> v.dimensions
('NSTK',)
>>> v.shape
(38452,)
>>> v = point_sourcefile.variables['NO2']
>>> v.dimensions
('TSTEP', 'NSTK')
>>> v.shape
(25, 38452)
>>> point_sourcefile.dimensions
{'TSTEP': 25, 'NSTK': 38452}

Initialization included reading the header and learning about the format.

see __readheader and __gettimestep() for more info

cell_hdr_fmt = 'iiii'

data_fmt = 'f'

emiss_hdr_fmt = '10i60i3ifif'

getArray()

grid_hdr_fmt = 'ffiffffiiiiifff'

header()

id_fmt = 'i10i'

id_size = 44

items()

keys()

nstk_hdr_fmt = 'ii'

padded_nstk_hdr_size = 16

padded_time_hdr_size = 24

read(fmt=None)

Provide direct access to record file read

read_into(dest)

Transfer values from current record to dest dest - numeric or numpy array

seek(date=None, time=None, spc=-1, offset=False)

Move file cursor to the beginning of the specified record see __recordposition for parameter definitions

seekandread(date=None, time=None, spc=1, offset=False, fmt=None)

see seek and read

seekandreadinto(dest, date=None, time=None, spc=1)

see seek and read_into

spc_fmt = '10i'

stk_hdr_fmt = 'ffffff'

stkprops = ['XSTK', 'YSTK', 'HSTK', 'DSTK', 'TSTK', 'VSTK']

stktimeprops = ['KCELL', 'FLOW', 'PLMHT']

time_hdr_fmt = 'ifif'

timerange()

values()

PseudoNetCDF.camxfiles.point_source.Write module

Write – CAMx point_source writer

PseudoNetCDF.camxfiles.point_source.Write.write_point(start_date, start_time, time_step, hdr, vals)

Module contents

point_source – Point Source File Interfaces