edu.wisc.ssec.mcidas

Class KALPnav

java.lang.Object

edu.wisc.ssec.mcidas.AREAnav

edu.wisc.ssec.mcidas.KALPnav

All Implemented Interfaces:

Serializable

public class KALPnav
extends AREAnav

The KALPnav class creates the ability to navigate KALP image data. It is a math copy of the McIDAS nvxgvar.dlm code. When used with AreaFile class, set up like this:

  AreaFile af;
  try {
    af = new AreaFile("/home/user/mcidas/data/AREA0001");
  } catch (AreaFileException e) {
    System.out.println(e);
    return;
  }
  int[] dir;
  try { dir=af.getDir();
  } catch (AreaFileException e){
    System.out.println(e);
    return;
  }
  int[] nav;
  try { nav=af.getNav();
  } catch (AreaFileException e){
    System.out.println(e);
    return;
  }
  try { 
    GVARnav ng = new GVARnav(nav);  // XXXXnav is the specific implementation
  } catch (IllegalArgumentException excp) {
    System.out.println(excp);
    return;
  }
  ng.setImageStart(dir[5], dir[6]);
  ng.setRes(dir[11], dir[12]);
  ng.setMag(1,1);
  ng.setStart(0,0);
  ......................
 

Author:

Tom Whittaker

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.wisc.ssec.mcidas.AREAnav

ABIN, ABIS, DEGREES_TO_RADIANS, DMSP, GEOS, GMSX, GOES, GVAR, indexEle, indexLat, indexLine, indexLon, KALP, LALO, LAMB, LL, MERC, MOLL, MSAT, MSG, MSGT, POES, PS, RADIANS_TO_DEGREES, RADR, RECT, SIN, TANC, XY

Constructor Summary

Constructors

Constructor and Description
KALPnav(int[] iparms)
KALPnav(int ifunc, int[] iparms)

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args)
double[][]	toLatLon(double[][] linele) converts from satellite coordinates to latitude/longitude
float[][]	toLatLon(float[][] linele) converts from satellite coordinates to latitude/longitude.
double[][]	toLinEle(double[][] latlon) toLinEle converts lat/long to satellite line/element
float[][]	toLinEle(float[][] latlon) toLinEle converts lat/long to satellite line/element This implementation converts the input array to doubles and calls the double signature of AREAnav.toLinEle(double[][]).

Methods inherited from class edu.wisc.ssec.mcidas.AREAnav

areaCoordToImageCoord, areaCoordToImageCoord, areaCoordToImageCoord, areaCoordToImageCoord, canApproximateWithSpline, doubleToFloat, equals, floatToDouble, getLineOffset, getSubpoint, imageCoordToAreaCoord, imageCoordToAreaCoord, imageCoordToAreaCoord, imageCoordToAreaCoord, isFlippedLineCoordinates, makeAreaNav, makeAreaNav, setFlipLineCoordinates, setImageStart, setMag, setMag, setRes, setRes, setStart, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

KALPnav

public KALPnav(int[] iparms)

KALPnav

public KALPnav(int ifunc,
               int[] iparms)

Method Detail

toLatLon

public float[][] toLatLon(float[][] linele)

Description copied from class: AREAnav

converts from satellite coordinates to latitude/longitude. This implementation converts the input array to doubles and calls the double signature of AREAnav.toLatLon(double[][]). Subclasses should implement a real float version for better performance.

Overrides:

toLatLon in class AREAnav

Parameters:

linele - array of line/element pairs. Where linele[indexLine][] is a 'line' and linele[indexEle][] is an element. These are in 'file' coordinates (not "image" coordinates.)

Returns:

latlon[][] array of lat/long pairs. Output array is latlon[indexLat][] of latitudes and latlon[indexLon][] of longitudes.

toLinEle

public float[][] toLinEle(float[][] latlon)

Description copied from class: AREAnav

toLinEle converts lat/long to satellite line/element This implementation converts the input array to doubles and calls the double signature of AREAnav.toLinEle(double[][]). Subclasses should implement a real float version for better performance.

Overrides:

toLinEle in class AREAnav

Parameters:

latlon - array of lat/long pairs. Where latlon[indexLat][] are latitudes and latlon[indexLon][] are longitudes.

Returns:

linele[][] array of line/element pairs. Where linele[indexLine][] is a line and linele[indexEle][] is an element. These are in 'file' coordinates (not "image" coordinates);

toLinEle

public double[][] toLinEle(double[][] latlon)

Description copied from class: AREAnav

toLinEle converts lat/long to satellite line/element

Specified by:

toLinEle in class AREAnav

Parameters:

latlon - array of lat/long pairs. Where latlon[indexLat][] are latitudes and latlon[indexLon][] are longitudes.

Returns:

linele[][] array of line/element pairs. Where linele[indexLine][] is a line and linele[indexEle][] is an element. These are in 'file' coordinates (not "image" coordinates);

toLatLon

public double[][] toLatLon(double[][] linele)

Description copied from class: AREAnav

converts from satellite coordinates to latitude/longitude

Specified by:

toLatLon in class AREAnav

Parameters:

linele - array of line/element pairs. Where linele[indexLine][] is a 'line' and linele[indexEle][] is an element. These are in 'file' coordinates (not "image" coordinates.)

Returns:

latlon[][] array of lat/long pairs. Output array is latlon[indexLat][] of latitudes and latlon[indexLon][] of longitudes.

main

public static void main(String[] args)