NetCDFFileProperties (arcpy)

摘要

网络公用数据格式 (netCDF) 为二进制、自描述、独立于计算机的文件格式，可用于存储科学数据。

了解有关 NetCDF 的详细信息

语法

NetCDFFileProperties (netcdffile)

参数	说明	数据类型
netcdffile	The input netCDF file.	String

方法概述

方法	说明
getAttributeNames ({variable_name})	Gets the attribute names of a variable in a NetCDF file.
getAttributeValue (variable_name, attribute_name)	Get the value of an attribute.
getDimensionIndex (dimension_name, value)	Gets the dimension index.
getDimensionSize (dimension_name)	Gets the dimension size.
getDimensionValue (dimension_name, index)	Gets the dimension value.
getDimensions ()	Gets the dimensions.
getDimensionsByVariable (variable_name)	Gets the dimensions by variable.
getFieldType (name)	Gets the field type of a variable or dimension.
getSpatialReference (variable_name, x_dimension, y_dimension)	Gets the spatial reference of a variable.
getVariables ()	Gets the variables.
getVariablesByDimension (dimension_name)	Get the variables by dimension.

方法

getAttributeNames ({variable_name})

参数	说明	数据类型
variable_name [variable_name,...]	Variable name of the NetCDF file.	String

返回值

数据类型	说明
String	The attribute names of the variable.

getAttributeValue (variable_name, attribute_name)

参数	说明	数据类型
variable_name	Variable name of the netCDF file.	String
attribute_name	Attribute name of the netCDF file.	String

返回值

数据类型	说明
Object	The value of the attribute. The type of returned value depends on the dimension type.

getDimensionIndex (dimension_name, value)

参数	说明	数据类型
dimension_name	Dimension name of the NetCDF file.	String
value	The dimension value.	Integer

返回值

数据类型	说明
Integer	The dimension index.

getDimensionSize (dimension_name)

参数	说明	数据类型
dimension_name	Dimension name of the NetCDF file.	String

返回值

数据类型	说明
Integer	The dimension size.

getDimensionValue (dimension_name, index)

参数	说明	数据类型
dimension_name	Dimension name of the NetCDF file.	String
index	The index position.	Integer

返回值

数据类型	说明
Object	The dimension value. The type of returned value depends on the dimension type.

getDimensions ()

返回值

数据类型	说明
String	List of dimensions.

getDimensionsByVariable (variable_name)

参数	说明	数据类型
variable_name	Variable name of the NetCDF file.	String

返回值

数据类型	说明
String	The dimensions by variable.

getFieldType (name)

参数	说明	数据类型
name	Variable or dimension name of the NetCDF file.	String

返回值

数据类型	说明
String	The field type.

getSpatialReference (variable_name, x_dimension, y_dimension)

参数	说明	数据类型
variable_name	Variable name of the NetCDF file.	String
x_dimension	The x-dimension.	Integer
y_dimension	The y-dimension.	Integer

返回值

数据类型	说明
SpatialReference	The spatial reference of a variable.

getVariables ()

返回值

数据类型	说明
String	List of variables.

getVariablesByDimension (dimension_name)

参数	说明	数据类型
dimension_name	Variable name of the netCDF file	String

返回值

数据类型	说明
String	List of variables by dimension

代码实例

NetCDFFileProperties 示例

显示 NetCDF 文件属性。

import arcpy

in_netcdf = "c:/NetCDF/crwr.nc"
try:
    nc_fp = arcpy.NetCDFFileProperties(in_netcdf)

    # Get Variables
    for nc_var in nc_fp.getVariables():
        print("Variable: {0}".format(nc_var))
        print("\tVariable type: {0}".format(nc_fp.getFieldType(nc_var)))

        # Get dimensions by variable
        for nc_dim_by_var in nc_fp.getDimensionsByVariable(nc_var):
            print("Dimension: {0}".format(nc_dim_by_var))
        print(nc_fp.getAttributeValue(nc_var, "units"))

        # Get Variable Attribues
        for nc_va_name in nc_fp.getAttributeNames(nc_var):
            print("Attribute Name: {0}".format(nc_va_name))

    # Get Dimensions
    for nc_dim in nc_fp.getDimensions():
        print("Dimension: {0}".format(nc_dim))
        print("\tDimension size: {0}".format(nc_fp.getDimensionSize(nc_dim)))
        print("\tDimension type: {0}".format(nc_fp.getFieldType(nc_dim)))

        for i in range(0, nc_fp.getDimensionSize(nc_dim)):
            nc_dim_value = nc_fp.getDimensionValue(nc_dim, i)
            print("\tDimension value: {0}".format(nc_dim_value))
            print("\tDimension index: {0}".format(
                nc_fp.getDimensionIndex(nc_dim, nc_dim_value)))

        # Get Variable by dimension
        for nc_vars_by_dim in nc_fp.getVariablesByDimension(nc_dim):
            print("\tVariable by dimension: {0}".format(nc_vars_by_dim))

    # Get Global Attribues
    for nc_att_name in nc_fp.getAttributeNames(""):
        print("Attribute Name: {0}".format(nc_att_name))
        print(nc_fp.getAttributeValue("", nc_att_name))

except Exception as err:
    print(err)