NetCDFFileProperties

摘要

The Network Common Data Form (NetCDF) is a binary, self-describing, machine-independent file format for storing scientific data.

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

代码示例

NetCDFFileProperties example

Display properties of NetCDF file.

import arcpy

InNetCDF = "c:/NetCDF/crwr.nc"
try:
    ncFP = arcpy.NetCDFFileProperties(InNetCDF)

    #Get Variables    
    ncVars = ncFP.getVariables()
    for ncVar in ncVars:
        print "Variable: %s" % ncVar
        ncVarType = ncFP.getFieldType(ncVar)        
        print "\t" + "Variable type: %s " % ncVarType

        #Get dimensions by variable        
        ncDimsByVar = ncFP.getDimensionsByVariable(ncVar)
        for ncDimByVar in ncDimsByVar:
            print "Dimension: %s " % ncDimByVar
        print ncFP.getAttributeValue(ncVar, "units")

        #Get Variable Attribues
        ncVANames = ncFP.getAttributeNames(ncVar)

        for ncVAName in ncVANames:
            print "Attribute Name: %s " % ncVAName        

    #Get Dimensions
    ncDims = ncFP.getDimensions()

    for ncDim in ncDims:
        print "Dimension: %s " % ncDim
        ncDimSize = ncFP.getDimensionSize(ncDim)
        print "\t" + "Dimension size: %s " % ncDimSize
        ncDimType = ncFP.getFieldType(ncDim)        
        print "\t" + "Dimension type: %s " % ncDimType

        for i in range(0, ncFP.getDimensionSize(ncDim)):
            ncDimValue = ncFP.getDimensionValue(ncDim, i)
            print "\t" + "Dimension value: %s" % ncDimValue
            ncDimIndex = ncFP.getDimensionIndex(ncDim, ncDimValue)
            print "\t" + "Dimension index: %s" % ncDimIndex

        #Get Variable by dimension
        ncVarsByDim = ncFP.getVariablesByDimension(ncDim)
        for ncVarByDim in ncVarsByDim:
            print "\t" + "Variable by dimension: %s" % ncVarByDim  

    #Get Global Attribues
    ncAttributeNames = ncFP.getAttributeNames("")
    for ncAttributeName in ncAttributeNames:
        print "Attribute Name: %s " % ncAttributeName
        print ncFP.getAttributeValue("", ncAttributeName)

except:
    print arcpy.GetMessages(2)