Package noaa.coastwatch.util.sensor

Class VIIRSSourceImp

java.lang.Object

noaa.coastwatch.util.sensor.VIIRSSourceImp

All Implemented Interfaces:

ResamplingSourceImp

public class VIIRSSourceImp
extends Object
implements ResamplingSourceImp

The VIIRSSourceImp helps resample VIIRS data using a specific set of VIIRS sensor parameters.

Since:

3.5.0

Author:

Peter Hollemans

Method Summary

Modifier and Type	Method	Description
Object	getContext()	Gets a context object used to store state between subsequent calls to ResamplingSourceImp.isValidNearestLocation(noaa.coastwatch.util.EarthLocation,noaa.coastwatch.util.DataLocation,java.lang.Object).
static VIIRSSourceImp	getInstance(EarthTransform sourceTrans, VIIRSSensorParams sensorParams)	Creates a new VIIRS resampling helper using the specified transform.
int	getWindowSize()	Gets the width and height of the window to search for the next nearest location during resampling.
boolean	isValidLocation(DataLocation loc)	Determines if a source data location is valid to be used in the resampling operation.
boolean	isValidNearestLocation(EarthLocation earthLoc, DataLocation nearestDataLoc, Object contextObj)	Determines if the nearest source transform earth location is valid to be used for resampling to the specified destination earth location.

Methods inherited from class java.lang.Object

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

Method Details

getInstance

public static VIIRSSourceImp getInstance(EarthTransform sourceTrans,
 VIIRSSensorParams sensorParams)

Creates a new VIIRS resampling helper using the specified transform.

Parameters:

sourceTrans - the source transform to use for VIIRS swath location data.

sensorParams - the VIIRS sensor parameters to use.

Returns:

the new resampling helper.

isValidLocation

public boolean isValidLocation(DataLocation loc)

Description copied from interface: ResamplingSourceImp

Determines if a source data location is valid to be used in the resampling operation.

Specified by:

isValidLocation in interface ResamplingSourceImp

Parameters:

loc - the location to determine for use.

Returns:

true if the location should be used, or false if not.

getWindowSize

public int getWindowSize()

Description copied from interface: ResamplingSourceImp

Gets the width and height of the window to search for the next nearest location during resampling. This is the window inside which the second nearest location may be found.

Specified by:

getWindowSize in interface ResamplingSourceImp

Returns:

the window size in pixels.

getContext

public Object getContext()

Description copied from interface: ResamplingSourceImp

Gets a context object used to store state between subsequent calls to ResamplingSourceImp.isValidNearestLocation(noaa.coastwatch.util.EarthLocation,noaa.coastwatch.util.DataLocation,java.lang.Object).

Specified by:

getContext in interface ResamplingSourceImp

Returns:

the new context object.

isValidNearestLocation

public boolean isValidNearestLocation(EarthLocation earthLoc,
 DataLocation nearestDataLoc,
 Object contextObj)

Description copied from interface: ResamplingSourceImp

Determines if the nearest source transform earth location is valid to be used for resampling to the specified destination earth location. To be valid, the destination earth location must fall within the bounds of the pixel defined by the nearest source location.

Specified by:

isValidNearestLocation in interface ResamplingSourceImp

Parameters:

earthLoc - the destination earth location to check.

nearestDataLoc - the nearest source data location to the specified destination earth location.

contextObj - a context object obtained from ResamplingSourceImp.getContext().

Returns:

true if the destination location falls within the area of the nearest source location, or false if not.