/*
* Copyright 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
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*
* THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
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*/
package ucar.nc2.dods;
import ucar.nc2.*;
import ucar.nc2.Attribute;
import ucar.nc2.constants.CDM;
import ucar.nc2.constants._Coordinate;
import java.util.*;
import java.io.IOException;
/**
* A DODS Grid.
* A Grid has a Variable and associated coordinate variables, called maps.
*
* @see ucar.nc2.Variable
* @author caron
*/
public class DODSGrid extends DODSVariable {
static private org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(DODSGrid.class);
DODSGrid( DODSNetcdfFile dodsfile, Group parentGroup, Structure parentStructure, String dodsShortName, DodsV dodsV) throws IOException {
super(dodsfile, parentGroup, parentStructure, dodsShortName, dodsV);
DodsV array = dodsV.children.get(0);
/* if (!shortName.equals(array.bt.getName())) {
this.shortName = shortName + "-" + array.bt.getName(); // LOOK whats this ??
}
// so we just map the netcdf grid variable to the dods grid.array
this.dodsShortName = shortName + "." + array.bt.getName(); */
// the common case is that the map vectors already exist as a top level variables
List<Dimension> dims = new ArrayList<Dimension>();
Formatter sbuff = new Formatter();
for (int i = 1; i < dodsV.children.size(); i++) {
DodsV map = dodsV.children.get(i);
String name = DODSNetcdfFile.makeShortName(map.bt.getEncodedName());
Dimension dim = parentGroup.findDimension(name);
if (dim == null) {
logger.warn("DODSGrid cant find dimension = <"+name+">");
} else {
dims.add( dim);
sbuff.format("%s ", name);
}
}
setDimensions( dims);
setDataType( DODSNetcdfFile.convertToNCType(array.bt));
if (DODSNetcdfFile.isUnsigned( array.bt)) {
addAttribute(new Attribute(CDM.UNSIGNED, "true"));
}
DODSAttribute att = new DODSAttribute(_Coordinate.Axes, sbuff.toString());
this.addAttribute( att);
}
// for section, slice
@Override
protected Variable copy() {
return new DODSGrid(this);
}
private DODSGrid(DODSGrid from) {
super(from);
}
/* private void connectMaps(Group parentGroup, List maps) {
// first one is the array, the rest are maps
DODSVariable array = (DODSVariable) vars.get(0);
List maps = vars.subList(1, vars.size());
// do the maps first - LOOK for now assume that they are 1D coord vars
ArrayList mapDimensions = new ArrayList();
for (int i=0; i<maps.size(); i++) {
DODSVariable map = (DODSVariable) maps.get(i);
// see if it already exists LOOK not general case; assume names are unique!
DODSVariable existingMap = (DODSVariable) parentGroup.findVariable( map.getShortName());
Dimension dim;
if (existingMap != null) {
dim = existingMap.getDimension( 0);
if (DODSNetcdfFile.debugConstruct) System.out.println(" already have coordinate map = "+map.getName());
} else {
dim = convertToCoordinateVariable( map);
parentGroup.addDimension( dim);
parentGroup.addVariable( map);
if (DODSNetcdfFile.debugConstruct) System.out.println(" added coordinate map = "+map.getName());
}
mapDimensions.add( dim);
array.replaceDimension(dim);
}
StringBuffer sbuff = new StringBuffer();
for (int i=0; i<mapDimensions.size(); i++) {
Dimension d = (Dimension) mapDimensions.get(i);
if (i > 0) sbuff.append(" ");
sbuff.append(d.getName());
}
setDimensions( array.getDimensions());
setDataType( array.getDataType());
DODSAttribute att = new DODSAttribute("_coordinateSystem", sbuff.toString());
this.addAttribute( att);
}
private Dimension convertToCoordinateVariable ( DODSVariable v) {
Dimension oldDimension = v.getDimension(0);
Dimension newDimension = new Dimension( v.getShortName(), oldDimension.getLength(), true);
newDimension.setCoordinateVariable( v);
v.setDimension( 0, newDimension);
v.calcIsCoordinateVariable();
return newDimension;
} */
}