/** * Set the sounding in the table * * @param sounding the sounding * @throws RemoteException Java RMI problem * @throws VisADException problem dissecting data */ private void setupTable(Field sounding) throws VisADException, RemoteException { Set domain = sounding.getDomainSet(); CoordinateSystem cs = domain.getCoordinateSystem(); numDomainCols = domain.getDimension(); if (cs != null) { numDomainCols++; } RealType[] rangeComps = ((FunctionType) sounding.getType()).getRealComponents(); numRangeCols = rangeComps.length; columnNames = new String[numDomainCols + numRangeCols]; SetType t = (SetType) domain.getType(); Unit[] units = domain.getSetUnits(); RealTupleType rtt = t.getDomain(); RealType[] comps = rtt.getRealComponents(); columnNames[0] = makeColumnName(comps[0], units[0]); if ((cs != null)) { RealTupleType refType = cs.getReference(); RealType[] refComps = refType.getRealComponents(); Unit[] refUnits = cs.getReferenceUnits(); columnNames[1] = makeColumnName(refComps[0], refUnits[0]); } // set for default for (int i = 0; i < rangeComps.length; i++) { columnNames[numDomainCols + i] = makeColumnName(rangeComps[i], rangeComps[i].getDefaultUnit()); } // wind if (rangeComps.length > 2) { csUnits = new Unit[] {rangeComps[2].getDefaultUnit(), rangeComps[3].getDefaultUnit()}; haveUV = (Unit.canConvert(csUnits[0], CommonUnit.meterPerSecond) && Unit.canConvert(csUnits[1], CommonUnit.meterPerSecond)); if (haveUV) { windTransform = new InverseCoordinateSystem( new RealTupleType(Speed.getRealType(), Direction.getRealType()), new PolarHorizontalWind.PolarCoordinateSystem( new RealTupleType(rangeComps[2], rangeComps[3]), CommonUnit.meterPerSecond, CommonUnit.degree)); } else { windTransform = new PolarHorizontalWind.PolarCoordinateSystem(csUnits[0], csUnits[1]); } } if (model == null) { model = new SoundingTableModel(); sorter = new TableSorter(model); JTableHeader header = getTableHeader(); header.setToolTipText("Click to sort"); sorter.setTableHeader(getTableHeader()); setModel(sorter); setAutoResizeMode(JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS); setPreferredScrollableViewportSize(new Dimension(400, 200)); getTableHeader().setReorderingAllowed(false); } }
/** * Set the sounding in the table * * @param sounding the sounding * @throws RemoteException Java RMI problem * @throws VisADException problem dissecting data */ private void setSounding(Field sounding) throws VisADException, RemoteException { domainData = null; // domain values Set domain = sounding.getDomainSet(); CoordinateSystem cs = domain.getCoordinateSystem(); float[][] domSamples = domain.getSamples(false); if ((cs != null)) { float[][] domFloats = Set.copyFloats(domSamples); // Must convert from the default coordinate domain system to // the domain coordinate system of the sounding. String fromUnit = sounding.getDomainUnits()[0].toString(); String toUnit = cs.getCoordinateSystemUnits()[0].toString(); if (!fromUnit.equals(toUnit) && SimpleUnit.isCompatible(fromUnit, toUnit)) { float conversionFactor = (float) SimpleUnit.getConversionFactor(fromUnit, toUnit); for (int i = 0; i < domFloats.length; i++) { for (int j = 0; j < domFloats[i].length; j++) { domFloats[i][j] = domFloats[i][j] * conversionFactor; } } } float[][] refData = cs.toReference(domFloats); domainData = new float[][] {domSamples[0], refData[0]}; } // range values RealType[] rangeComps = ((FunctionType) sounding.getType()).getRealComponents(); rangeData = sounding.getFloats(false); // wind if (rangeComps.length > 2) { transformWinds = (showUAndV && !haveUV) || (!showUAndV && haveUV); if (!transformWinds) { for (int i = 2; i < 4; i++) { columnNames[numDomainCols + i] = makeColumnName(rangeComps[i], rangeComps[i].getDefaultUnit()); } } else { RealTupleType refType = windTransform.getReference(); Unit[] refUnits = windTransform.getReferenceUnits(); for (int i = 0; i < 2; i++) { columnNames[numDomainCols + i + 2] = makeColumnName((RealType) refType.getComponent(i), refUnits[i]); } float[][] newVals = windTransform.toReference(Set.copyFloats(new float[][] {rangeData[2], rangeData[3]})); rangeData[2] = newVals[0]; rangeData[3] = newVals[1]; } } sorter.setTableModel(model); }
/** * Sets the set of times of all the profiles. The set will contain one or more times as double * values, in order, from earliest to latest. * * @param times The times of all the profiles. * @param source * @throws VisADException if a VisAD failure occurs. * @throws RemoteException if a Java RMI failure occurs. */ public void setTimes(SampledSet times, SoundingDataNode source) throws VisADException, RemoteException { RealType timeType = (RealType) ((SetType) times.getType()).getDomain().getComponent(0); // use a LineDrawing because it's the simplest DisplayableData if (timesHolder == null) { timesHolder = new LineDrawing("times ref"); } /* * Add a data object to the display that has the right * time-centers. */ Field dummy = new FieldImpl(new FunctionType(timeType, AirTemperatureProfile.instance()), times); for (int i = 0, n = times.getLength(); i < n; i++) { dummy.setSample(i, AirTemperatureProfile.instance().missingData()); } timesHolder.setData(dummy); if (widget == null) { if (times.getLength() == 1) { DateTime time = new DateTime( new Real( timeType, times.indexToDouble(new int[] {0})[0][0], times.getSetUnits()[0])); widget = GuiUtils.wrap(new JLabel(time.toString())); dataNode.setTime(time); setSounding(0); } else { // // Set the animation. // Animation animation = getInternalAnimation(timeType); getSoundingView().setExternalAnimation(animation, getAnimationWidget()); aeroDisplay.addDisplayable(animation); aeroDisplay.addDisplayable(timesHolder); Container container = Box.createHorizontalBox(); // Wrap these components so they don't get stretched in the Y direction container.add(GuiUtils.wrap(getAnimationWidget().getContents(false))); // container.add(GuiUtils.wrap (animationWidget.getIndicatorComponent())); widget = container; } } }
/** evaluate the extract function */ public static Data extract(visad.Field f, Real r) { Data d = null; try { d = f.extract((int) r.getValue()); } catch (VisADException exc) { if (FormulaVar.DEBUG) exc.printStackTrace(); } catch (RemoteException exc) { if (FormulaVar.DEBUG) exc.printStackTrace(); } return d; }
/** * Converts grid-relative winds to true (or absolute) winds. The U and V components of true wind * are {@link WesterlyWind} and {@link SoutherlyWind}, respectively. If the input {@link * visad.Field} is not a time-series, then it must be a {@link visad.FlatField} and it must be * compatible with the argument of {@link #cartesianHorizontalWind(FlatField)}. If, however, the * the input {@link visad.Field} is a time-series, then its domain must be a temporal {@link * visad.Gridded1DSet} or a {@link visad.SingletonSet} and its range values must be compatible * with the argument of {@link #cartesianHorizontalWind(FlatField)}. * * @param rel The grid-relative winds. * @return The time-series of true wind corresponding to the input. * @throws NullPointerException if <code>rel</code> is <code>null</code>. * @throws IllegalArgumentException if the input field is not a time-series and is incompatible * with {@link #cartesianHorizontalWind(FlatField)}, or if the input field is a time-series * but its range values are incompatible with {@link #cartesianHorizontalWind(FlatField)}. * @throws VisADException if a VisAD failure occurs. * @throws RemoteException if a Java RMI failure occurs. */ public static Field cartesianHorizontalWind(Field rel) throws VisADException, RemoteException { RealTupleType domType = ((FunctionType) rel.getType()).getDomain(); Field result = null; if (RealType.Time.equalsExceptNameButUnits(domType) || RealType.TimeInterval.equalsExceptNameButUnits(domType)) { result = timeSeriesCartesianHorizontalWind(rel); } else { result = cartesianHorizontalWind((FlatField) rel); } return result; }
/** evaluate the bracket function; e.g., A1[5] or A1[A2] */ public static Data brackets(visad.Field f, Real r) { Data value = null; try { RealType rt = (RealType) r.getType(); value = f.getSample((int) r.getValue()); } catch (VisADException exc) { if (FormulaVar.DEBUG) exc.printStackTrace(); } catch (RemoteException exc) { if (FormulaVar.DEBUG) exc.printStackTrace(); } return value; }
/** * Sets the input, buoyancy profile. * * @param buoyProfile The input, buoyancy profile. * @throws TypeException if the domain quantity isn't pressure or the range quantity isn't volume * per mass. * @throws VisADException if a VisAD failure occurs. * @throws RemoteException if a Java RMI failure occurs. */ public void setBuoyancyProfile(Field buoyProfile) throws TypeException, VisADException, RemoteException { FunctionType funcType = (FunctionType) buoyProfile.getType(); RealTupleType domainType = funcType.getDomain(); if (!Pressure.getRealType().equalsExceptNameButUnits(domainType)) { throw new TypeException(domainType.toString()); } MathType rangeType = funcType.getRange(); if (!CapeBean.massicVolume.equalsExceptNameButUnits(rangeType)) { throw new TypeException(rangeType.toString()); } this.buoyProfile = buoyProfile; }
/** * Converts a time-series of grid-relative winds to a time-series of true (or absolute) winds. The * U and V components of true wind are {@link WesterlyWind} and {@link SoutherlyWind}, * respectively. The domain of the input {@link visad.Field} must be a temporal {@link * visad.Gridded1DSet} or a {@link visad.SingletonSet}. The range values of the input {@link * visad.Field} must be {@link visad.FlatField}s. The domains of the range {@link * visad.FlatField}s must have a manifold dimension of two or greater and they must have a * reference system which contains {@link visad.RealType#Latitude} and {@link * visad.RealType#Longitude}. The number of components in the range of the {@link * visad.FlatField}s must be two. Both components must have units convertible with {@link * #DEFAULT_SPEED_UNIT}. The first and second components are assumed to be the wind components in * the direction of increasing first and second manifold dimension indexes, respectively. The * domains of the {@link visad.FlatField}s must be equal. The {@link visad.Field} returned by this * method has the same domain as the input {@link visad.Field}. The range values of the returned * {@link visad.Field} are {@link visad.FlatField}s that have the same domain as the input {@link * visad.FlatField}s. The {@link visad.MathType} of the range of the returned {@link * visad.FlatField}s will be <code>CartesianHorizontalWind.getEarthVectorType()</code>. * * @param rel The time-series of grid-relative wind. * @return The time-series of true wind corresponding to the input. * @throws NullPointerException if <code>rel</code> is <code>null</code>. * @throws IllegalArgumentException if the input field doesn't have a time-series domain, or if * the range values aren't {@link visad.FlatField} with the same domain, or if the domain of * the {@link visad.FlatField}s doesn't have a transformation to latitude and longitude, or if * the domain is irregular or has too few points, or if the {@link visad.FlatField}s don't * have two and only two components in their range, or if the default units of the {@link * visad.FlatField}s range aren't equal. * @throws VisADException if a VisAD failure occurs. * @throws RemoteException if a Java RMI failure occurs. * @see CartesianHorizontalWind */ public static Field timeSeriesCartesianHorizontalWind(Field rel) throws VisADException, RemoteException { FunctionType outerFuncType = (FunctionType) rel.getType(); RealTupleType outerDomType = outerFuncType.getDomain(); if (!(RealType.Time.equalsExceptNameButUnits(outerDomType) || !RealType.TimeInterval.equalsExceptNameButUnits(outerDomType))) { throw new IllegalArgumentException(outerDomType.toString()); } MathType innerFuncType = outerFuncType.getRange(); if (!(innerFuncType instanceof FunctionType)) { throw new IllegalArgumentException(innerFuncType.toString()); } Field innerField = (Field) rel.getSample(0); Set innerDom = innerField.getDomainSet(); if (innerDom instanceof SingletonSet) { return rel; } else if (innerDom instanceof GriddedSet) { int[] lengths = ((GriddedSet) innerDom).getLengths(); if ((lengths[0] == 1) && (lengths[1] == 1)) { return rel; } } // account for null units, assume m/sec Unit[] rangeUnits = innerField.getDefaultRangeUnits(); if ((rangeUnits == null) || (rangeUnits[0] == null) || rangeUnits[0].isDimensionless()) { rangeUnits = CartesianHorizontalWind.getEarthVectorType().getDefaultUnits(); } FunctionType innerType = new FunctionType( ((SetType) innerDom.getType()).getDomain(), CartesianHorizontalWind.getEarthVectorType()); FlatField uvField = new FlatField(innerType, innerDom, (CoordinateSystem) null, (Set[]) null, rangeUnits); Field result = new FieldImpl(new FunctionType(outerDomType, uvField.getType()), rel.getDomainSet()); // System.out.println("making rHatField"); Field rHatField = (doNewCode ? hatFieldNew(innerDom, 0) : hatFieldOld(innerDom, 0)); // System.out.println("making sHatField"); Field sHatField = (doNewCode ? hatFieldNew(innerDom, 1) : hatFieldOld(innerDom, 1)); float[][] rHats = rHatField.getFloats(false); // ucar.unidata.util.Misc.printArray("rHats[0]", rHats[0]); // ucar.unidata.util.Misc.printArray("rHats[1]", rHats[1]); // System.out.println("\n"); float[][] sHats = sHatField.getFloats(false); // ucar.unidata.util.Misc.printArray("sHats[0]", sHats[0]); // ucar.unidata.util.Misc.printArray("sHats[1]", sHats[1]); // System.out.println("\n"); float[] us = new float[innerDom.getLength()]; float[] vs = new float[us.length]; for (int i = 0, n = rel.getLength(); i < n; i++) { if (i > 0) { innerField = (Field) rel.getSample(i); Set dom = innerField.getDomainSet(); if (!innerDom.equals(dom)) { // System.out.println("new domain"); innerDom = dom; rHatField = (doNewCode ? hatFieldNew(innerDom, 0) : hatFieldOld(innerDom, 0)); sHatField = (doNewCode ? hatFieldNew(innerDom, 1) : hatFieldOld(innerDom, 1)); rHats = rHatField.getFloats(false); sHats = sHatField.getFloats(false); /* throw new IllegalArgumentException("template=" + innerDom.toString() + "; domain=" + dom.toString()); */ } uvField = new FlatField(innerType, innerDom, (CoordinateSystem) null, (Set[]) null, rangeUnits); us = new float[innerDom.getLength()]; vs = new float[us.length]; } float[][] rsWinds = innerField.getFloats(false); float[] rWinds = rsWinds[0]; float[] sWinds = rsWinds[1]; // ucar.unidata.util.Misc.printArray("rWinds", rWinds); // System.out.println("\n"); // ucar.unidata.util.Misc.printArray("sWinds", sWinds); // System.out.println("\n"); for (int j = 0; j < us.length; j++) { us[j] = rWinds[j] * rHats[0][j] + sWinds[j] * sHats[0][j]; vs[j] = rWinds[j] * rHats[1][j] + sWinds[j] * sHats[1][j]; } // ucar.unidata.util.Misc.printArray("us", us); // System.out.println("\n"); // ucar.unidata.util.Misc.printArray("vs", vs); // System.out.println("\n"); uvField.setSamples(new float[][] {us, vs}, false); result.setSample(i, uvField, false); } return result; }
/** * Computes the output Level of Free Convection (LFC) from an (AirPressure -> MassicVolume) * buoyancy profile. * * @param datums The input data in the same order as during construction: <code>datums[0] * </code> is the input buoyancy profile. * @return The pressure at the LFC of the buoyancy profile. * @throws ClassCastException if an input data reference has the wrong type of data object. * @throws TypeException if a VisAD data object has the wrong type. * @throws VisADException if a VisAD failure occurs. * @throws RemoteException if a Java RMI failure occurs. * @throws IllegalArgumentException if the profile is not ascending. */ protected Data compute(Data[] datums) throws TypeException, VisADException, RemoteException { Field buoyProfile = (Field) datums[0]; Real lfc = noData; // default return value if (buoyProfile != null) { FunctionType funcType = (FunctionType) buoyProfile.getType(); RealTupleType domainType = funcType.getDomain(); if (!Pressure.getRealType().equalsExceptNameButUnits(domainType)) { throw new TypeException(domainType.toString()); } MathType rangeType = funcType.getRange(); Util.vetType(MassicVolume.getRealType(), buoyProfile); Set domainSet = buoyProfile.getDomainSet(); double[] pressures = domainSet.getDoubles()[0]; float[] buoys = buoyProfile.getFloats()[0]; if (pressures.length > 1) { int lastI = pressures.length - 1; boolean ascending = pressures[0] >= pressures[lastI]; Unit presUnit = domainSet.getSetUnits()[0]; int i; if (ascending) { /* * For a level of free convection to exist, the lower * buoyancy must be negative. */ for (i = 0; (i < buoys.length) && (buoys[i] >= 0); i++) ; /* * To find the level of free convection, ascend to * positive buoyancy. */ while ((++i < buoys.length) && (buoys[i] <= 0)) ; if (i < buoys.length) { lfc = interpolatePres(pressures[i], buoys[i], pressures[i - 1], buoys[i - 1], presUnit); } } else { /* * For a level of free convection to exist, the lower * buoyancy must be negative. */ for (i = lastI; (i >= 0) && (buoys[i] >= 0); i--) ; /* * To find the level of free convection, ascend to * positive buoyancy. */ while ((--i >= 0) && (buoys[i] <= 0)) ; if (i >= 0) { lfc = interpolatePres(pressures[i], buoys[i], pressures[i + 1], buoys[i + 1], presUnit); } } } } return lfc; }
/** * Computes the output property. A {@link java.beans.PropertyChangeEvent} is fired for the output * property if it differs from the previous value. * * @throws VisADException if a VisAD failure occurs. * @throws RemoteException if a Java RMI exception occurs. */ void clock() throws VisADException, RemoteException { Set domainSet = buoyProfile.getDomainSet(); Real oldLfc; Real newLfc; double[] pressures = domainSet.getDoubles()[0]; float[] buoys = buoyProfile.getFloats()[0]; /* Eliminate non-finite pressures and buoyancies. */ int n = 0; for (int i = 0; i < pressures.length; i++) { if ((pressures[i] != pressures[i]) || (buoys[i] != buoys[i])) { n++; } } if (n > 0) { double[] tmpPres = new double[pressures.length - n]; float[] tmpBuoy = new float[tmpPres.length]; n = 0; for (int i = 0; i < pressures.length; i++) { if ((pressures[i] != pressures[i]) || (buoys[i] != buoys[i])) { continue; } tmpPres[n] = pressures[i]; tmpBuoy[n] = buoys[i]; n++; } pressures = tmpPres; buoys = tmpBuoy; } if (pressures.length <= 1) { newLfc = missingLfc; } else { Unit presUnit = domainSet.getSetUnits()[0]; boolean ascending = pressures[0] > pressures[1]; if (!ascending) { /* * The profile is descending. Make the temporary value arrays * ascending. */ for (int i = 0, j = pressures.length; i < pressures.length / 2; i++) { --j; double pres = pressures[i]; pressures[i] = pressures[j]; pressures[j] = pres; float buoy = buoys[i]; buoys[i] = buoys[j]; buoys[j] = buoy; } } /* * Descend from the top to positive buoyancy. */ int i = buoys.length; while ((--i >= 0) && (buoys[i] <= 0)) ; if (i < 0) { /* * There is no positively buoyant region. */ newLfc = missingLfc; } else { /* * Descend to first non-positive buoyant region. */ while ((--i >= 0) && (buoys[i] > 0)) ; if (i < 0) { /* * There is no non-positive buoyant region. */ newLfc = missingLfc; } else { /* * Interpolate the LFC. */ double pressure = pressures[i + 1] / Math.exp( buoys[i + 1] * (Math.log(pressures[i] / pressures[i + 1]) / (buoys[i] - buoys[i + 1]))); newLfc = new Real((RealType) missingLfc.getType(), pressure, presUnit); } } } synchronized (this) { oldLfc = lfc; lfc = newLfc; } firePropertyChange(OUTPUT_PROPERTY_NAME, oldLfc, newLfc); }
/** * run 'java visad.bom.ImageRendererJ3D len step' to test animation behavior of ImageRendererJ3D * renders a loop of len at step ms per frame then updates loop by deleting first time and adding * a new last time */ public static void main(String args[]) throws VisADException, RemoteException, IOException { int step = 1000; int len = 3; if (args.length > 0) { try { len = Integer.parseInt(args[0]); } catch (NumberFormatException e) { len = 3; } } if (len < 1) len = 1; if (args.length > 1) { try { step = Integer.parseInt(args[1]); } catch (NumberFormatException e) { step = 1000; } } if (step < 1) step = 1; // create a netCDF reader Plain plain = new Plain(); // open a netCDF file containing an image sequence and adapt // it to a Field Data object Field raw_image_sequence = null; try { // raw_image_sequence = (Field) plain.open("images256x256.nc"); raw_image_sequence = (Field) plain.open("images.nc"); } catch (IOException exc) { String s = "To run this example, the images.nc file must be " + "present in\nthe current directory." + "You can obtain this file from:\n" + " ftp://www.ssec.wisc.edu/pub/visad-2.0/images.nc.Z"; System.out.println(s); System.exit(0); } // just take first half of raw_image_sequence FunctionType image_sequence_type = (FunctionType) raw_image_sequence.getType(); Set raw_set = raw_image_sequence.getDomainSet(); float[][] raw_times = raw_set.getSamples(); int raw_len = raw_times[0].length; if (raw_len != 4) { throw new VisADException("wrong number of images in sequence"); } float raw_span = (4.0f / 3.0f) * (raw_times[0][3] - raw_times[0][0]); double[][] times = new double[1][len]; for (int i = 0; i < len; i++) { times[0][i] = raw_times[0][i % raw_len] + raw_span * (i / raw_len); } Gridded1DDoubleSet set = new Gridded1DDoubleSet(raw_set.getType(), times, len); Field image_sequence = new FieldImpl(image_sequence_type, set); for (int i = 0; i < len; i++) { image_sequence.setSample(i, raw_image_sequence.getSample(i % raw_len)); } // create a DataReference for image sequence final DataReference image_ref = new DataReferenceImpl("image"); image_ref.setData(image_sequence); // create a Display using Java3D DisplayImpl display = new DisplayImplJ3D("image display"); // extract the type of image and use // it to determine how images are displayed FunctionType image_type = (FunctionType) image_sequence_type.getRange(); RealTupleType domain_type = image_type.getDomain(); // map image coordinates to display coordinates display.addMap(new ScalarMap((RealType) domain_type.getComponent(0), Display.XAxis)); display.addMap(new ScalarMap((RealType) domain_type.getComponent(1), Display.YAxis)); // map image brightness values to RGB (default is grey scale) display.addMap(new ScalarMap((RealType) image_type.getRange(), Display.RGB)); RealType hour_type = (RealType) image_sequence_type.getDomain().getComponent(0); ScalarMap animation_map = new ScalarMap(hour_type, Display.Animation); display.addMap(animation_map); AnimationControl animation_control = (AnimationControl) animation_map.getControl(); animation_control.setStep(step); animation_control.setOn(true); /* // link the Display to image_ref ImageRendererJ3D renderer = new ImageRendererJ3D(); display.addReferences(renderer, image_ref); // display.addReference(image_ref); */ // create JFrame (i.e., a window) for display and slider JFrame frame = new JFrame("ImageRendererJ3D test"); frame.addWindowListener( new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); // create JPanel in JFrame JPanel panel = new JPanel(); panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS)); panel.setAlignmentY(JPanel.TOP_ALIGNMENT); panel.setAlignmentX(JPanel.LEFT_ALIGNMENT); frame.getContentPane().add(panel); // add display to JPanel panel.add(display.getComponent()); // set size of JFrame and make it visible frame.setSize(500, 500); frame.setVisible(true); System.out.println("first animation sequence"); // link the Display to image_ref ImageRendererJ3D renderer = new ImageRendererJ3D(); display.addReferences(renderer, image_ref); // display.addReference(image_ref); // wait 4 * len seconds new Delay(len * 4000); // substitute a new image sequence for the old one for (int i = 0; i < len; i++) { times[0][i] = raw_times[0][(i + 1) % raw_len] + raw_span * ((i + 1) / raw_len); } set = new Gridded1DDoubleSet(raw_set.getType(), times, len); FieldImpl new_image_sequence = new FieldImpl(image_sequence_type, set); for (int i = 0; i < len; i++) { new_image_sequence.setSample(i, raw_image_sequence.getSample((i + 1) % raw_len)); } System.out.println("second animation sequence"); // tell renderer to resue frames in its scene graph renderer.setReUseFrames(true); image_ref.setData(new_image_sequence); }