edu.wisc.ssec.mcidas
Class MSGTnav

java.lang.Object
  edu.wisc.ssec.mcidas.AREAnav
      edu.wisc.ssec.mcidas.MSGTnav

All Implemented Interfaces:

Serializable

public final class MSGTnav

extends AREAnav

Navigation class for MSG type nav. This code was modified from the original FORTRAN code (nvxmsgt.dlm) on the McIDAS system. It only supports latitude/longitude to line/element transformations (LL) and vice/versa. Transform to 'XYZ' not implemented.

See Also:

McIDAS Programmer's Manual, Serialized Form

Field Summary

(package private) double	a
(package private) double	cdr
(package private) int	CFAC
(package private) int	COFF
(package private) int	count
(package private) double	crd
(package private) double	deltax
(package private) double	deltay
(package private) double	EARTH_RADIUS
(package private) boolean	first
(package private) double	h
(package private) int[]	ioff
(package private) int	itype
(package private) int	LFAC
(package private) int	LOFF
(package private) double	NOMORB
(package private) double	rp
(package private) double	rs
(package private) double	yk

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

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

Constructor Summary

MSGTnav(int[] iparms)
Set up for the real math work.

Method Summary

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

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

areaCoordToImageCoord, areaCoordToImageCoord, areaCoordToImageCoord, areaCoordToImageCoord, doubleToFloat, equals, floatToDouble, getLineOffset, 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

Field Detail

NOMORB

final double NOMORB

See Also:

Constant Field Values

EARTH_RADIUS

final double EARTH_RADIUS

See Also:

Constant Field Values

itype

int itype

h

double h

a

double a

rp

double rp

cdr

double cdr

crd

double crd

rs

double rs

yk

double yk

deltax

double deltax

deltay

double deltay

LOFF

int LOFF

COFF

int COFF

LFAC

int LFAC

CFAC

int CFAC

ioff

int[] ioff

first

boolean first

count

int count

Constructor Detail

MSGTnav

public MSGTnav(int[] iparms)
        throws IllegalArgumentException

Set up for the real math work. Must pass in the int array of the MSGT nav 'codicil'.

Parameters:

iparms - the nav block from the image file

Throws:

IllegalArgumentException - if the nav block is not a MSGT type.

Method Detail

toLatLon

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

converts from satellite coordinates to latitude/longitude

Specified by:

toLatLon in class AREAnav

Returns:

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

toLinEle

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

toLinEle converts lat/long to satellite line/element

Specified by:

toLinEle in class AREAnav

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

converts from satellite coordinates to latitude/longitude

Overrides:

toLatLon in class AREAnav

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)

toLinEle converts lat/long to satellite line/element

Overrides:

toLinEle in class AREAnav

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);