public Array readData(Variable v2, Section section) throws IOException, InvalidRangeException {
// Vgroup vgroup = (Vgroup) v2.getSPobject();
// Range scanRange = section.getRange(0);
// Range radialRange = section.getRange(1);
// Range gateRange = section.getRange(2);
Array data = Array.factory(v2.getDataType().getPrimitiveClassType(), section.getShape());
IndexIterator ii = data.getIndexIterator();
List<List<Ray>> groups;
String shortName = v2.getShortName();
if (shortName.startsWith("Reflectivity")) groups = volScan.getReflectivityGroups();
else if (shortName.startsWith("Velocity")) groups = volScan.getVelocityGroups();
else if (shortName.startsWith("TotalPower")) groups = volScan.getTotalPowerGroups();
else if (shortName.startsWith("Width")) groups = volScan.getWidthGroups();
else if (shortName.startsWith("DiffReflectivity"))
groups = volScan.getDifferentialReflectivityGroups();
else throw new IllegalStateException("Illegal variable name = " + shortName);
if (section.getRank() == 2) {
Range radialRange = section.getRange(0);
Range gateRange = section.getRange(1);
List<Ray> lli = groups.get(0);
readOneScan(lli, radialRange, gateRange, ii);
} else {
Range scanRange = section.getRange(0);
Range radialRange = section.getRange(1);
Range gateRange = section.getRange(2);
for (int i = scanRange.first(); i <= scanRange.last(); i += scanRange.stride()) {
readOneScan(groups.get(i), radialRange, gateRange, ii);
}
}
return data;
}
// do not call directly
@Override
public Array reallyRead(Variable client, Section section, CancelTask cancelTask)
throws IOException, InvalidRangeException {
// see if its really a full read
if ((null == section) || section.computeSize() == getSize())
return reallyRead(client, cancelTask);
if (orgVar == null) return getMissingDataArray(section.getShape());
return orgVar.read(section);
}
/**
* Read data from a top level Variable and return a memory resident Array.
*
* @param v2 Variable. It may have FLOAT/INTEGER data type.
* @param section wanted section of data of Variable. The section list is a list of ucar.ma2.Range
* which define the requested data subset.
* @return Array of data which will be read from Variable through this call.
*/
public Array readData1(ucar.nc2.Variable v2, Section section)
throws IOException, InvalidRangeException {
// doData(raf, ncfile, varList);
int[] sh = section.getShape();
Array temp = Array.factory(v2.getDataType(), sh);
long pos0 = 0;
// Suppose that the data has LayoutRegular
LayoutRegular index = new LayoutRegular(pos0, v2.getElementSize(), v2.getShape(), section);
if (v2.getShortName().startsWith("time") | v2.getShortName().startsWith("numGates")) {
temp = readIntData(index, v2);
} else {
temp = readFloatData(index, v2);
}
return temp;
}
public Array readData(Variable v2, Section section) throws IOException, InvalidRangeException {
Vgroup vgroup = (Vgroup) v2.getSPobject();
Range scanRange = section.getRange(0);
Range radialRange = section.getRange(1);
Range gateRange = section.getRange(2);
Array data = Array.factory(v2.getDataType().getPrimitiveClassType(), section.getShape());
IndexIterator ii = data.getIndexIterator();
for (int i = scanRange.first(); i <= scanRange.last(); i += scanRange.stride()) {
Cinrad2Record[] mapScan = vgroup.map[i];
readOneScan(mapScan, radialRange, gateRange, vgroup.datatype, ii);
}
return data;
}
