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DAMASK_EICMD
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add function to extract path based on label

This commit is contained in:
chen 2016-10-07 15:33:43 -04:00
parent 4e8bd83d4b
commit 491b4e31ec
1 changed files with 19 additions and 23 deletions
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42
lib/damask/h5table.py
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@ -20,21 +20,17 @@ except(NameError):
# Singleton class for converting feature name to H5F path # # Singleton class for converting feature name to H5F path #
# ------------------------------------------------------- # # ------------------------------------------------------- #
# NOTE: # NOTE:
# 1. use simple diction to mimic the singleton class in # use simple function to mimic the singleton class in
# C++/Java # C++/Java
# 2. data structure def lables_to_path(label, dsXMLPath=None):
# {<FEATURE_NAME>: (<TYPE>, <PATH>), ...}
# <FEATURE_NAME> ==> the name of the feature, e.g. f, ...
# <TYPE> ==> attribute, dataset
# <PATH> ==> path_in_HDF5_file, e.g. '/f'
def lables_to_path(label, ns="https://damask.mpie.de"):
""" read the xml definition file and return the path.""" """ read the xml definition file and return the path."""
dsXMLPath = os.path.abspath(__file__).replace("h5table.py", if dsXMLPath is None:
"DS_HDF5.xml") dsXMLPath = os.path.abspath(__file__).replace("h5table.py",
"DS_HDF5.xml")
tree = ET.parse(dsXMLPath) tree = ET.parse(dsXMLPath)
root = tree.getroot() dataType = tree.find('{}/type'.format(label)).text
path = 'test' h5path = tree.find('{}/h5path'.format(label)).text
return path return (dataType, h5path)
# ----------------------- # # ----------------------- #
@ -44,12 +40,12 @@ class H5Table(object):
""" """
DESCRIPTION DESCRIPTION
----------- -----------
Container class for interfacing with HDF5 file format. This Interface class for manipulating data in HDF5 with DAMASK
is a bare-bone interface class that provide simplified getter specialized data structure.
and setter for retrieving and appending data and attributes.
PARAMETERS PARAMETERS
---------- ----------
h5f_path h5f_path: str
Absolute path the HDF5 file
METHOD METHOD
------ ------
get_attr() get_attr()
@ -63,7 +59,6 @@ class H5Table(object):
---- ----
1. As an interface class, it uses the lazy evaluation design 1. As an interface class, it uses the lazy evaluation design
that read the data only when its absolutely necessary. that read the data only when its absolutely necessary.
2.
""" """
def __init__(self, h5f_path): def __init__(self, h5f_path):
@ -71,11 +66,10 @@ class H5Table(object):
""" """
self.h5f_path = h5f_path self.h5f_path = h5f_path
def get_attr(self, feature_name=None): def get_attr(self, attr_name=None):
""" """
""" """
h5f = h5py.File(self.h5f_path, 'r') h5f = h5py.File(self.h5f_path, 'r')
pass
def add_attr(self, ): def add_attr(self, ):
""" """
@ -87,10 +81,12 @@ class H5Table(object):
""" """
pass pass
def get_data(self, ): def get_data(self, feature_name=None):
""" """ extract dataset from HDF5 table and return it in a numpy array """
""" dataType, h5f_path = lables_to_path(feature_name)
pass h5f = h5py.File(self.h5f_path, 'r')
h5f_dst = h5f[h5f_path] # get the handle for target dataset(table)
return h5f_dst.read_direct(np.zeros(h5f_dst.shape))
def add_data(self, ): def add_data(self, ):
""" """