org.wdssii.core
Class LatLonGrid

java.lang.Object
  org.wdssii.core.DataType
      org.wdssii.core.LatLonGrid

public class LatLonGrid
extends DataType

A regularly spaced grid where the first dimension is latitude and the second dimension is longitude. The (0,0) location is the north-west corner. In the first dimension, latitude decreases (southward) and in the second dimension, longitude increases (eastward).

Author:

lakshman

Nested Class Summary

static class

LatLonGrid.Pixel

Field Summary

private float	deltaLat
private float	deltaLon
private static org.apache.commons.logging.Log	log
private float[][]	values

Fields inherited from class org.wdssii.core.DataType

attributes, DataUnavailable, MissingData, originLocation, RangeFolded, startTime, typeName

Constructor Summary

LatLonGrid(LatLonGrid master)

LatLonGrid(Location nwCorner, Date time, String typeName, float deltaLat, float deltaLon, float[][] values)

LatLonGrid(Location nwCorner, Date time, String typeName, float deltaLat, float deltaLon, int numLat, int numLon)
All the values are initialized to zero

Method Summary

void	convertToUnit(ucar.units.Unit toUnit) Converts all the values in this grid to the specified unit.
float	getDeltaLat() positive number that indicates the size of a pixel in lat-direction
float	getDeltaLon() positive number that indicates the size of a pixel in lon-direction
int	getNumLat()
int	getNumLon()
LatLonGrid.Pixel	getPixel(Location loc) returns the Pixel corresponding to the location.
float	getValue(LatLonGrid.Pixel p)
float	getValue(Location loc) Get the value at a Location.
float[][]	getValues()
void	setValues(float[][] values2) Can be used to set all the values of the grid at once.

Methods inherited from class org.wdssii.core.DataType

addAttributes, copyOf, getAttribute, getAttributes, getLocation, getTime, getTypeName, getUnit, getUTC, setAttribute, setAttributes, setTypeName, toStringDB

Methods inherited from class java.lang.Object

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

Field Detail

log

private static org.apache.commons.logging.Log log

deltaLat

private final float deltaLat

deltaLon

private final float deltaLon

values

private float[][] values

Constructor Detail

LatLonGrid

public LatLonGrid(LatLonGrid master)

LatLonGrid

public LatLonGrid(Location nwCorner,
                  Date time,
                  String typeName,
                  float deltaLat,
                  float deltaLon,
                  float[][] values)

LatLonGrid

public LatLonGrid(Location nwCorner,
                  Date time,
                  String typeName,
                  float deltaLat,
                  float deltaLon,
                  int numLat,
                  int numLon)

All the values are initialized to zero

Method Detail

getValues

public float[][] getValues()

getNumLat

public int getNumLat()

getNumLon

public int getNumLon()

getDeltaLat

public float getDeltaLat()

positive number that indicates the size of a pixel in lat-direction

getDeltaLon

public float getDeltaLon()

positive number that indicates the size of a pixel in lon-direction

convertToUnit

public void convertToUnit(ucar.units.Unit toUnit)

Converts all the values in this grid to the specified unit.

Parameters:

grid -

toUnit - Use UdUnits.parse() to create this Unit

See Also:

UdUnits.parse()

getValue

public float getValue(Location loc)

Get the value at a Location. The height is ignored and MissingData is returned for values outside

getPixel

public LatLonGrid.Pixel getPixel(Location loc)

returns the Pixel corresponding to the location. The height is ignored but a null value is returned if the location is outside the grid.

getValue

public float getValue(LatLonGrid.Pixel p)

setValues

public void setValues(float[][] values2)

Can be used to set all the values of the grid at once.