Esempio n. 1
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def read_vars_from_exofile(filepath,
                           variables=None,
                           step=1,
                           h=1,
                           elem_blk=1,
                           elem_num=1):
    """Read the specified variables from the exodus file in filepath

    """
    # setup variables
    if variables is None:
        variables = ["ALL"]
    else:
        if not isinstance(variables, (list, tuple)):
            variables = [variables]
        variables = [v.strip() for v in variables]
        if "all" in [v.lower() for v in variables]:
            variables = ["ALL"]

    if not os.path.isfile(filepath):
        raise ExoDumpError("{0}: no such file".format(filepath))

    exof = ExodusIIReader(filepath)
    glob_var_names = exof.glob_var_names
    elem_var_names = exof.elem_var_names

    if variables[0] != "ALL":
        glob_var_names = expand_var_names(glob_var_names, variables)
        elem_var_names = expand_var_names(elem_var_names, variables)
        bad = [x for x in variables if x is not None]
        if bad:
            raise ExoDumpError("{0}: variables not in "
                               "{1}".format(", ".join(bad), filepath))

    # retrieve the data from the database
    header = ["TIME"]
    header.extend([H.upper() for H in glob_var_names])
    header.extend([H.upper() for H in elem_var_names])
    data = []
    for i in myrange(0, exof.num_time_steps, step):
        row = [exof.get_time(i)]
        glob_vars_vals = exof.get_glob_vars(i, disp=1)
        for var in glob_var_names:
            try:
                row.append(glob_vars_vals[var])
            except KeyError:
                continue
        for var in elem_var_names:
            row.append(exof.get_elem_var_time(var, elem_num, elem_blk)[i])
        data.append(row)
    exof.close()
    data = np.array(data)

    if len(header) != data.shape[1]:
        raise ExoDumpError("inconsistent data")

    if h:
        return header, data
    return data
Esempio n. 2
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def loadexo(filepath):
    LOG.info("Reading {0}".format(filepath))
    exof = ExodusIIReader(filepath)
    glob_var_names = exof.glob_var_names
    elem_var_names = exof.elem_var_names
    data = [exof.get_all_times()]
    for glob_var_name in glob_var_names:
        data.append(exof.get_glob_var_time(glob_var_name))
    for elem_var_name in elem_var_names:
        data.append(exof.get_elem_var_time(elem_var_name, 0))
    data = np.transpose(np.array(data))
    head = ["TIME"] + glob_var_names + elem_var_names
    exof.close()
    return head, data
Esempio n. 3
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def read_vars_from_exofile(filepath, variables=None, step=1, h=1,
                           elem_blk=1, elem_num=1):
    """Read the specified variables from the exodus file in filepath

    """
    # setup variables
    if variables is None:
        variables = ["ALL"]
    else:
        if not isinstance(variables, (list, tuple)):
            variables = [variables]
        variables = [v.strip() for v in variables]
        if "all" in [v.lower() for v in variables]:
            variables = ["ALL"]

    if not os.path.isfile(filepath):
        raise ExoDumpError("{0}: no such file".format(filepath))

    exof = ExodusIIReader(filepath)
    glob_var_names = exof.glob_var_names
    elem_var_names = exof.elem_var_names

    if variables[0] != "ALL":
        glob_var_names = expand_var_names(glob_var_names, variables)
        elem_var_names = expand_var_names(elem_var_names, variables)
        bad = [x for x in variables if x is not None]
        if bad:
            raise ExoDumpError("{0}: variables not in "
                               "{1}".format(", ".join(bad), filepath))

    # retrieve the data from the database
    header = ["TIME"]
    header.extend([H.upper() for H in glob_var_names])
    header.extend([H.upper() for H in elem_var_names])
    data = []
    for i in myrange(0, exof.num_time_steps, step):
        row = [exof.get_time(i)]
        glob_vars_vals = exof.get_glob_vars(i, disp=1)
        for var in glob_var_names:
            try: row.append(glob_vars_vals[var])
            except KeyError: continue
        for var in elem_var_names:
            row.append(exof.get_elem_var_time(var, elem_num, elem_blk)[i])
        data.append(row)
    exof.close()
    data = np.array(data)

    if len(header) != data.shape[1]:
        raise ExoDumpError("inconsistent data")

    if h:
        return header, data
    return data