ucar.nc2.dataset.conv

Class CF1Convention

java.lang.Object

ucar.nc2.dataset.CoordSysBuilder

ucar.nc2.dataset.conv.COARDSConvention

ucar.nc2.dataset.conv.CSMConvention

ucar.nc2.dataset.conv.CF1Convention

All Implemented Interfaces:

CoordSysBuilderIF

Direct Known Subclasses:

CEDRICRadarConvention

public class CF1Convention
extends CSMConvention

CF-1 Convention. see http://www.cgd.ucar.edu/cms/eaton/cf-metadata/index.html

"The CF conventions for climate and forecast metadata are designed to promote the processing and sharing of files created with the netCDF API. The conventions define metadata that provide a definitive description of what the data in each variable represents, and of the spatial and temporal properties of the data. This enables users of data from different sources to decide which quantities are comparable, and facilitates building applications with powerful extraction, regridding, and display capabilities."

Nested Class Summary

Nested classes/interfaces inherited from class ucar.nc2.dataset.CoordSysBuilder

CoordSysBuilder.ConventionNameOk, CoordSysBuilder.VarProcess

Field Summary

Fields inherited from class ucar.nc2.dataset.conv.COARDSConvention

checkForMeter

Fields inherited from class ucar.nc2.dataset.CoordSysBuilder

conventionName, coordVarMap, debug, log, parseInfo, resourcesDir, userAdvice, varList

Constructor Summary

Constructors

Constructor and Description
CF1Convention()

Method Summary

Modifier and Type	Method and Description
void	augmentDataset(NetcdfDataset ds, CancelTask cancelTask) Make changes to the dataset that are needed before processing scale/offset in NetcdfDataset.
protected AxisType	getAxisType(NetcdfDataset ncDataset, VariableEnhanced v) Augment COARDS axis type identification with Standard names (including dimensionless vertical coordinates) and CF.AXIS attributes
static int	getVersion(java.lang.String hasConvName) Get which CF version this is, ie CF-1.x
static java.lang.String	getZisPositive(java.lang.String zaxisName, java.lang.String vertCoordUnits) Guess the value of ZisPositive based on z axis name and units

Methods inherited from class ucar.nc2.dataset.conv.CSMConvention

addParameter2, findCoordinateAxes, makeCoordinateTransform

Methods inherited from class ucar.nc2.dataset.conv.COARDSConvention

checkTimeVarForCalendar, isMine

Methods inherited from class ucar.nc2.dataset.CoordSysBuilder

addCoordinateVariable, addUserAdvice, assignCoordinateSystemsExplicit, assignCoordinateTransforms, breakupConventionNames, buildConventionAttribute, buildCoordinateSystems, factory, findCoordinateAxis, findCoordinateSystems, findCoordinateTransforms, findVarProcess, getConventionUsed, getParseInfo, getUseMaximalCoordSys, getUserAdvice, isCoordinateAxisForVariable, makeCoordinateAxes, makeCoordinateSystems, makeCoordinateSystemsImplicit, makeCoordinateSystemsMaximal, makeCoordinateTransforms, makeCoordinateTransformVariable, registerConvention, registerConvention, registerConvention, registerNcML, setConventionUsed, setUseMaximalCoordSys

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CF1Convention

public CF1Convention()

Method Detail

getVersion

public static int getVersion(java.lang.String hasConvName)

Get which CF version this is, ie CF-1.x

Parameters:

hasConvName - extract from convention name or list of names

Returns:

version, or -1 if not CF

getZisPositive

public static java.lang.String getZisPositive(java.lang.String zaxisName,
                                              java.lang.String vertCoordUnits)

Guess the value of ZisPositive based on z axis name and units

Parameters:

zaxisName - z coordinate axis name

vertCoordUnits - z coordinate axis name

Returns:

CF.POSITIVE_UP or CF.POSITIVE_DOWN

augmentDataset

public void augmentDataset(NetcdfDataset ds,
                           CancelTask cancelTask)
                    throws java.io.IOException

Description copied from interface: CoordSysBuilderIF

Make changes to the dataset that are needed before processing scale/offset in NetcdfDataset.

Specified by:

augmentDataset in interface CoordSysBuilderIF

Overrides:

augmentDataset in class CSMConvention

Parameters:

ds - modify this dataset

cancelTask - give user a chance to bail out

Throws:

java.io.IOException - on error

getAxisType

protected AxisType getAxisType(NetcdfDataset ncDataset,
                               VariableEnhanced v)

Augment COARDS axis type identification with Standard names (including dimensionless vertical coordinates) and CF.AXIS attributes

Overrides:

getAxisType in class COARDSConvention

Parameters:

ncDataset - for this dataset

v - a variable alreaddy identified as a Coodinate Axis

Returns:

AxisType or null if unknown.