ucar.nc2.dataset.conv.NppConvention Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of netcdf Show documentation
Show all versions of netcdf Show documentation
The NetCDF-Java Library is a Java interface to NetCDF files,
as well as to many other types of scientific data formats.
/*
* Copyright (c) 1998 - 2009. University Corporation for Atmospheric Research/Unidata
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
* and understandings on the user. The user is granted the right, without
* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
* documentation for any purpose whatsoever, provided that this entire
* notice appears in all copies of the software, derivative works and
* supporting documentation. Further, UCAR requests that the user credit
* UCAR/Unidata in any publications that result from the use of this
* software or in any product that includes this software. The names UCAR
* and/or Unidata, however, may not be used in any advertising or publicity
* to endorse or promote any products or commercial entity unless specific
* written permission is obtained from UCAR/Unidata. The user also
* understands that UCAR/Unidata is not obligated to provide the user with
* any support, consulting, training or assistance of any kind with regard
* to the use, operation and performance of this software nor to provide
* the user with any updates, revisions, new versions or "bug fixes."
*
* THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package ucar.nc2.dataset.conv;
import ucar.nc2.*;
import ucar.nc2.constants.FeatureType;
import ucar.nc2.constants._Coordinate;
import ucar.nc2.constants.AxisType;
import ucar.nc2.util.CancelTask;
import ucar.nc2.dataset.NetcdfDataset;
import java.io.IOException;
/**
* NPP/NPOESS Conventions
* note this is almost same as Avhrr ??
* @author caron
* @since Sep 11, 2009
*/
public class NppConvention extends ucar.nc2.dataset.CoordSysBuilder {
public static boolean isMine(NetcdfFile ncfile) {
if (!ncfile.getFileTypeId().equals("HDF5")) return false;
Group loc = ncfile.findGroup("All_Data/VIIRS-MOD-GEO-TC_All");
if (loc == null)
loc = ncfile.findGroup("All_Data/VIIRS-CLD-AGG-GEO_All");
if (null == loc) return false;
if (null == loc.findVariable("Latitude")) return false;
if (null == loc.findVariable("Longitude")) return false;
return true;
}
public NppConvention() {
this.conventionName = "NPP/NPOESS";
}
public void augmentDataset(NetcdfDataset ds, CancelTask cancelTask) throws IOException {
ds.addAttribute(null, new Attribute("FeatureType", FeatureType.IMAGE.toString())); // LOOK
Group loc = ds.findGroup("All_Data/VIIRS-MOD-GEO-TC_All");
if (loc == null)
loc = ds.findGroup("All_Data/VIIRS-CLD-AGG-GEO_All");
Variable lat = loc.findVariable("Latitude");
lat.addAttribute(new Attribute("units", "degrees_north"));
lat.addAttribute(new Attribute(_Coordinate.AxisType, AxisType.Lat.toString()));
Variable lon = loc.findVariable("Longitude");
lon.addAttribute(new Attribute("units", "degrees_east"));
lon.addAttribute(new Attribute(_Coordinate.AxisType, AxisType.Lon.toString()));
int[] shape = lat.getShape();
assert shape.length == 2;
Dimension scan = new Dimension("scan", shape[0]);
Dimension xscan = new Dimension("xscan", shape[1]);
loc.addDimension(scan);
loc.addDimension(xscan);
lat.setDimensions("scan xscan");
lon.setDimensions("scan xscan");
for (Variable v : loc.getVariables()) {
int[] vs = v.getShape();
if ((vs.length == 2) && (vs[0] == shape[0]) && (vs[1] == shape[1])) {
v.setDimensions("scan xscan");
v.addAttribute(new Attribute(_Coordinate.Axes, "Latitude Longitude"));
}
}
/* Group PRODUCT_METADATA {
Group PRODUCT_DETAILS {
PRODUCT_DETAILS:UNIQUE_ID = "3AVHR_22NOV2007_0902";
PRODUCT_DETAILS:PRODUCT_TYPE = "STANDARD(FULL DISK) ";
PRODUCT_DETAILS:PROCESSING_SOFTWARE = "InPGS_XXXXXXXXXXXXXX";
PRODUCT_DETAILS:SPACECRAFT_ID = "INSAT-3A ";
PRODUCT_DETAILS:SENSOR_ID = "VHR";
PRODUCT_DETAILS:ACQUISITION_TYPE = "FULL FRAME ";
PRODUCT_DETAILS:ACQUISITION_DATE = "22NOV2007";
PRODUCT_DETAILS:ACQUISITION_TIME_IN_GMT = "0902";
PRODUCT_DETAILS:PRODUCT_NAME = " FULL DISK";
PRODUCT_DETAILS:PROCESSING_LEVEL = "L1B";
PRODUCT_DETAILS:BAND_COMBINATION = "Visible(VIS),Thermal Infrared(TIR),Water Vapour(WV)";
PRODUCT_DETAILS:PRODUCT_CODE = "ST00001HD";
}
Group info = ds.findGroup("PRODUCT_METADATA/PRODUCT_DETAILS");
String dateS = info.findAttribute("ACQUISITION_DATE").getStringValue();
String timeS = info.findAttribute("ACQUISITION_TIME_IN_GMT").getStringValue();
SimpleDateFormat format = new SimpleDateFormat("ddMMMyyyyHHmm");
format.setTimeZone(java.util.TimeZone.getTimeZone("GMT"));
try {
Date d = format.parse(dateS+timeS);
VariableDS time = new VariableDS(ds, vhrr, null, "time", DataType.LONG, "",
"seconds since 1970-01-01 00:00", "time generated from PRODUCT_METADATA/PRODUCT_DETAILS");
time.addAttribute( new Attribute(_Coordinate.AxisType, AxisType.Time.toString())); // // LOOK : cant handle scalar coordinates yet ??
time.addAttribute( new Attribute("IsoDate", new DateFormatter().toDateTimeStringISO(d)));
ds.addVariable(vhrr, time);
ArrayLong.D0 timeData = new ArrayLong.D0();
timeData.set(d.getTime() / 1000);
time.setCachedData(timeData, true);
} catch (ParseException e) {
e.printStackTrace();
throw new IOException(e.getMessage());
} */
ds.finish();
}
}