ucar.nc2.geotiff
Class GeotiffWriter

java.lang.Object
  ucar.nc2.geotiff.GeotiffWriter

public class GeotiffWriter
extends Object

Write GeoTIFF files.

Author:

caron, yuan

Constructor Summary

GeotiffWriter(String fileOut)
Geotiff writer.

Method Summary

void	close() _more_
Array	getClippedImageFrominterpolation(Array arr, int x1, int x2, int y1, int y2) _more_
double[]	getSwathLatLonInformation(Array lat, Array lon) get lat lon information from the swath
Array	getTargetImagerFromSwath(Array lat, Array lon, Array data, double[] swathInfo) get the grid dataset
Array	getYXDataInBox(Array data, int x1, int x2, int y1, int y2) _more_
Array	interpolation(Array arr) interpolate the swath data to regular grid
static void	main(String[] args) test
void	writeGrid(GridDataset dataset, GridDatatype grid, Array data, boolean greyScale) Write Grid data to the geotiff file.
void	writeGrid(GridDatatype grid, Array data, boolean greyScale, double xStart, double yStart, double xInc, double yInc, int imageNumber) Write Grid data to the geotiff file.
void	writeGrid(String fileName, String gridName, int time, int level, boolean greyScale, LatLonRect pt) Write Grid data to the geotiff file.
void	writeSwathGrid(String fileName, String gridName, int time, int level, boolean greyScale, LatLonRect llr) Write Swath Grid data to the geotiff file.

Methods inherited from class java.lang.Object

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

Constructor Detail

GeotiffWriter

public GeotiffWriter(String fileOut)

Geotiff writer.

Parameters:

fileOut - name of output file.

Method Detail

writeGrid

public void writeGrid(GridDataset dataset,
                      GridDatatype grid,
                      Array data,
                      boolean greyScale)
               throws IOException

Write Grid data to the geotiff file.

Parameters:

dataset - grid in contained in this dataset

grid - data is in this grid

data - 2D array in YX order

greyScale - if true, write greyScale image, else dataSample.

Throws:

IOException - on i/o error

writeGrid

public void writeGrid(String fileName,
                      String gridName,
                      int time,
                      int level,
                      boolean greyScale,
                      LatLonRect pt)
               throws IOException

Write Grid data to the geotiff file.

Parameters:

fileName - _more_

gridName - _more_

time - _more_

level - _more_

greyScale - _more_

pt - _more_

Throws:

IOException - _more_

writeSwathGrid

public void writeSwathGrid(String fileName,
                           String gridName,
                           int time,
                           int level,
                           boolean greyScale,
                           LatLonRect llr)
                    throws IOException

Write Swath Grid data to the geotiff file.

Parameters:

fileName - _more_

gridName - _more_

time - _more_

level - _more_

greyScale - _more_

llr - _more_

Throws:

IOException - _more_

getYXDataInBox

public Array getYXDataInBox(Array data,
                            int x1,
                            int x2,
                            int y1,
                            int y2)
                     throws IOException

_more_

Parameters:

data - _more_

x1 - _more_

x2 - _more_

y1 - _more_

y2 - _more_

Returns:

_more_

Throws:

IOException - _more_

getClippedImageFrominterpolation

public Array getClippedImageFrominterpolation(Array arr,
                                              int x1,
                                              int x2,
                                              int y1,
                                              int y2)

_more_

Parameters:

arr - _more_

x1 - _more_

x2 - _more_

y1 - _more_

y2 - _more_

Returns:

_more_

getTargetImagerFromSwath

public Array getTargetImagerFromSwath(Array lat,
                                      Array lon,
                                      Array data,
                                      double[] swathInfo)

get the grid dataset

Parameters:

lat - _more_

lon - _more_

data - _more_

swathInfo - _more_

Returns:

_more_

interpolation

public Array interpolation(Array arr)

interpolate the swath data to regular grid

Parameters:

arr - _more_

Returns:

_more_

getSwathLatLonInformation

public double[] getSwathLatLonInformation(Array lat,
                                          Array lon)

get lat lon information from the swath

Parameters:

lat - _more_

lon - _more_

Returns:

_more_

writeGrid

public void writeGrid(GridDatatype grid,
                      Array data,
                      boolean greyScale,
                      double xStart,
                      double yStart,
                      double xInc,
                      double yInc,
                      int imageNumber)
               throws IOException

Write Grid data to the geotiff file. Grid currently must:

1. have a 1D X and Y coordinate axes.
2. be lat/lon or Lambert Conformal Projection
3. be equally spaced

Parameters:

grid - original grid

data - 2D array in YX order

greyScale - if true, write greyScale image, else dataSample.

xStart -

yStart -

xInc -

yInc -

imageNumber -

Throws:

IOException - on i/o error

IllegalArgumentException - if above assumptions not valid

close

public void close()
           throws IOException

_more_

Throws:

IOException - _more_

main

public static void main(String[] args)
                 throws IOException

test

Parameters:

args - _more_

Throws:

IOException - _more_