/**
* Create e field description from the field
*
* @param fi field to use
*/
protected void makeFieldDescription(FieldImpl fi) {
if (fi == null) {
fieldsDescription = "Bad data: null";
return;
}
try {
if (ucar.unidata.data.grid.GridUtil.isTimeSequence(fi)) {
fi = (FieldImpl) fi.getSample(0);
}
PointOb ob = (PointOb) fi.getSample(0);
Tuple tuple = (Tuple) ob.getData();
MathType[] comps = ((TupleType) tuple.getType()).getComponents();
Trace.msg("PointDataSource #vars=" + comps.length);
StringBuffer params = new StringBuffer(comps.length + " Fields:<ul>");
String dataSourceName = getName();
DataChoice.addCurrentName(new TwoFacedObject("Point Data>Time", "Time"));
DataChoice.addCurrentName(new TwoFacedObject("Point Data>Latitude", "Latitude"));
DataChoice.addCurrentName(new TwoFacedObject("Point Data>Altitude", "Altitude"));
for (int i = 0; i < comps.length; i++) {
params.append("<li>");
String paramName = ucar.visad.Util.cleanTypeName(comps[i].toString());
DataAlias alias = DataAlias.findAlias(paramName);
params.append(paramName);
if (alias != null) {
params.append(" -- " + alias.getLabel());
DataChoice.addCurrentName(
new TwoFacedObject(
dataSourceName + ">" + alias.getLabel() + " -- " + paramName, paramName));
} else {
DataChoice.addCurrentName(
new TwoFacedObject(dataSourceName + ">" + paramName, paramName));
}
Data data = tuple.getComponent(i);
if (data instanceof Real) {
Unit unit = ((Real) data).getUnit();
if (unit != null) {
params.append(" [" + unit.toString() + "]");
}
}
}
fieldsDescription = params.toString();
} catch (Exception exc) {
logException("getting description", exc);
}
}
/**
* Load the volume data to the display
*
* @throws RemoteException problem loading remote data
* @throws VisADException problem loading the data
*/
private void loadVolumeData() throws VisADException, RemoteException {
Trace.call1("VRC.loadVolumeData");
FieldImpl grid = getGridDataInstance().getGrid();
FieldImpl newGrid = grid;
if (getSkipValue() > 0) {
grid = GridUtil.subset(grid, getSkipValue() + 1);
newGrid = grid;
}
if (!usePoints) {
// make sure the projection is correct before we start
// transforming the data
setProjectionInView(true, true);
CoordinateSystem cs = getNavigatedDisplay().getDisplayCoordinateSystem();
if ((cs != null) && (getNavigatedDisplay() instanceof MapProjectionDisplay)) {
try {
if (GridUtil.isConstantSpatialDomain(grid)) {
newGrid = makeLinearGrid(grid, cs);
} else {
Set timeSet = GridUtil.getTimeSet(grid);
for (int i = 0; i < timeSet.getLength(); i++) {
FieldImpl timeField = makeLinearGrid((FieldImpl) grid.getSample(i, false), cs);
if (i == 0) {
FunctionType ft =
new FunctionType(
((SetType) timeSet.getType()).getDomain(), timeField.getType());
newGrid = new FieldImpl(ft, timeSet);
}
newGrid.setSample(i, timeField, false);
}
}
} catch (VisADException ve) {
ve.printStackTrace();
userErrorMessage(
"Can't render volume for "
+ paramName
+ " in this projection. Try using the data projection");
newGrid = grid;
}
}
}
Trace.call1("VRC.loadVolumeData.loadData");
myDisplay.loadData(newGrid);
Trace.call2("VRC.loadVolumeData.loadData");
Trace.call2("loadVolumeData");
}
/** Make the <code>DataChoices</code> for this <code>DataSource</code>. */
public void doMakeDataChoices() {
if (sources == null) {
return;
}
String stationModelName = (String) getProperty(PROP_STATIONMODELNAME);
Hashtable properties =
Misc.newHashtable(DataChoice.PROP_ICON, "/auxdata/ui/icons/Placemark16.gif");
if (stationModelName != null) {
properties.put(PROP_STATIONMODELNAME, stationModelName);
}
if (!getDefaultLevels().isEmpty()) {
properties.put(DataSelection.PROP_DEFAULT_LEVELS, getDefaultLevels());
}
DataChoice uberChoice = null;
/* Might want to do this someday
uberChoice = new DirectDataChoice(this,
sources, getName(),
getDataName(),
getPointCategories(),
properties);
*/
if (sources.size() > 1) {
uberChoice =
new CompositeDataChoice(
this, sources, getName(), getDataName(), getPointCategories(), properties);
addDataChoice(uberChoice);
}
for (int i = 0; i < sources.size(); i++) {
String dataChoiceDesc = getDescription();
String dataChoiceName = getDataName();
if (uberChoice != null) {
dataChoiceDesc = IOUtil.getFileTail(sources.get(i).toString());
dataChoiceName = IOUtil.getFileTail(sources.get(i).toString());
}
DataChoice choice =
new DirectDataChoice(
this,
new Integer(i),
dataChoiceDesc,
dataChoiceName,
getPointCategories(),
properties);
/*
We'd like to create sub choices for each parameter but we don't really
know the parameters until we read the data and that can be expensive
DirectDataChoice subChoice = new DirectDataChoice(this,
(String) sources.get(i),
getDescription(), getDataName(),
getPointCategories(), properties);
choice.addDataChoice(subChoice);*/
if (uberChoice != null) {
((CompositeDataChoice) uberChoice).addDataChoice(choice);
} else {
addDataChoice(choice);
}
// Only add the grid data choices for the first source
if (i > 0) {
continue;
}
try {
FieldImpl sample = (makeGridFields ? getSample(choice) : null);
if (sample != null) {
for (int dataChoiceType = 0; dataChoiceType < 2; dataChoiceType++) {
Hashtable seenFields = new Hashtable();
if (ucar.unidata.data.grid.GridUtil.isTimeSequence(sample)) {
sample = (FieldImpl) sample.getSample(0);
}
PointOb ob = (PointOb) sample.getSample(0);
Tuple tuple = (Tuple) ob.getData();
TupleType tupleType = (TupleType) tuple.getType();
MathType[] types = tupleType.getComponents();
CompositeDataChoice compositeDataChoice = null;
for (int typeIdx = 0; typeIdx < types.length; typeIdx++) {
if (!(types[typeIdx] instanceof RealType)) {
continue;
}
RealType type = (RealType) types[typeIdx];
if (!canCreateGrid(type)) {
continue;
}
// List gridCategories =
// DataCategory.parseCategories("OA Fields;GRID-2D-TIME;");
List gridCategories = DataCategory.parseCategories("GRID-2D-TIME;", false);
if (compositeDataChoice == null) {
compositeDataChoice =
new CompositeDataChoice(
this,
"",
"Grid Fields from Objective Analysis",
"Gridded Fields " + ((dataChoiceType == 0) ? "" : "(with first guess)"),
Misc.newList(DataCategory.NONE_CATEGORY),
null);
addDataChoice(compositeDataChoice);
}
String name = ucar.visad.Util.cleanTypeName(type.toString());
if (seenFields.get(name) != null) {
continue;
}
seenFields.put(name, name);
List idList = Misc.newList(new Integer(i), type);
if (dataChoiceType == 1) {
idList.add(new Boolean(true));
}
DataChoice gridChoice =
new DirectDataChoice(this, idList, name, name, gridCategories, (Hashtable) null);
compositeDataChoice.addDataChoice(gridChoice);
}
}
}
} catch (Exception exc) {
throw new WrapperException("Making grid parameters", exc);
}
// if(true) break;
}
}
public static boolean isByRefUsable(DataDisplayLink link, ShadowType shadow)
throws VisADException, RemoteException {
ShadowFunctionOrSetType shadowType = (ShadowFunctionOrSetType) shadow.getAdaptedShadowType();
CoordinateSystem dataCoordinateSystem = null;
FlatField fltField = null;
int num_images = 1;
FieldImpl field = (FieldImpl) link.getData();
if (!(field instanceof FlatField)) {
num_images = field.getDomainSet().getLength();
if (1
== num_images) { // If there is a single image in the animation dont do anything, simply
// return true
return true;
}
shadowType = (ShadowFunctionOrSetType) shadowType.getRange();
fltField = (FlatField) field.getSample(0);
dataCoordinateSystem = fltField.getDomainCoordinateSystem();
} else {
dataCoordinateSystem = ((FlatField) field).getDomainCoordinateSystem();
return true;
}
// cs might be cached
if (dataCoordinateSystem instanceof CachingCoordinateSystem) {
dataCoordinateSystem =
((CachingCoordinateSystem) dataCoordinateSystem).getCachedCoordinateSystem();
}
ShadowRealType[] DomainComponents = shadowType.getDomainComponents();
ShadowRealTupleType Domain = shadowType.getDomain();
ShadowRealTupleType domain_reference = Domain.getReference();
ShadowRealType[] DC = DomainComponents;
if (domain_reference != null && domain_reference.getMappedDisplayScalar()) {
DC = shadowType.getDomainReferenceComponents();
}
DisplayTupleType spatial_tuple = null;
for (int i = 0; i < DC.length; i++) {
java.util.Enumeration maps = DC[i].getSelectedMapVector().elements();
ScalarMap map = (ScalarMap) maps.nextElement();
DisplayRealType real = map.getDisplayScalar();
spatial_tuple = real.getTuple();
}
CoordinateSystem coord = spatial_tuple.getCoordinateSystem();
if (coord instanceof CachingCoordinateSystem) {
coord = ((CachingCoordinateSystem) coord).getCachedCoordinateSystem();
}
boolean useLinearTexture = false;
if (coord instanceof InverseLinearScaledCS) {
InverseLinearScaledCS invCS = (InverseLinearScaledCS) coord;
useLinearTexture = (invCS.getInvertedCoordinateSystem()).equals(dataCoordinateSystem);
}
/**
* if useLinearTexture is true at this point, it's true for the first image of a sequence with
* numimages > 1. We'll have to assume that byRef will apply until below is resolved.
*/
/**
* more consideration/work needed here. CoordinateSystems might be equal even if they aren't the
* same transform (i,j) -> (lon,lat) if (!useLinearTexture) { //If DisplayCoordinateSystem !=
* DataCoordinateSystem if (num_images > 1) { //Its an animation int lengths[] =
* ((visad.GriddedSet) fltField.getDomainSet()).getLengths(); int data_width = lengths[0]; int
* data_height = lengths[1]; for (int i = 1; i < num_images; i++) {//Playing safe: go down the
* full sequence to find if the full set is Geostaionary or NOT FlatField ff = (FlatField)
* field.getSample(i); //Quicker Approach would be to just compare only the first two images in
* the sequence. But that may not be safe. CoordinateSystem dcs =
* ff.getDomainCoordinateSystem(); // dcs might be cached if (dcs instanceof
* CachingCoordinateSystem) { dcs = ((CachingCoordinateSystem) dcs).getCachedCoordinateSystem();
* } int[] lens = ((visad.GriddedSet) ff.getDomainSet()).getLengths(); if (lens[0] != data_width
* || lens[1] != data_height || ( (dcs != null) && (dataCoordinateSystem != null) &&
* !dcs.equals(dataCoordinateSystem))) { useLinearTexture = false; break; } } } }
*/
return useLinearTexture;
}
