Exemple #1
0
  /**
   * Set the track to be displayed.
   *
   * @param track must have the form (lat,lon, alt) -> param
   * @exception VisADException couldn't create the necessary VisAD object
   * @exception RemoteException couldn't create the remote object
   */
  public void setTrack(FieldImpl track) throws VisADException, RemoteException {

    // get the RealType of the range from the FlatField
    RealType[] types = ((TupleType) GridUtil.getParamType(track)).getRealComponents();
    RealType ffldType = types[0];

    RealType rgbRealType = getRGBRealType();

    if ((rgbRealType == null) || !ffldType.equals(rgbRealType)) {

      super.setRGBRealType(ffldType);
    }

    if (types.length > 1) {
      RealType newSelectType = (types.length > 1) ? types[1] : getRGBRealType();

      RealType selectRealType = getSelectRealType();

      if ((selectRealType == null) || !newSelectType.equals(selectRealType)) {
        setSelectRealType(newSelectType);
      }
    }

    this.track = track;

    setData(this.track);
  }
Exemple #2
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  void setupServerData(LocalDisplay[] dpys) throws RemoteException, VisADException {
    RealType[] types = {RealType.Latitude, RealType.Longitude};
    RealTupleType earth_location = new RealTupleType(types);
    RealType vis_radiance = RealType.getRealType("vis_radiance");
    RealType ir_radiance = RealType.getRealType("ir_radiance");
    RealType[] types2 = {vis_radiance, ir_radiance};
    RealTupleType radiance = new RealTupleType(types2);
    FunctionType image_tuple = new FunctionType(earth_location, radiance);

    int size = 64;
    FlatField imaget1 = FlatField.makeField(image_tuple, size, false);

    dpys[0].addMap(new ScalarMap(RealType.Latitude, Display.YAxis));
    dpys[0].addMap(new ScalarMap(RealType.Longitude, Display.XAxis));
    dpys[0].addMap(new ScalarMap(ir_radiance, Display.Green));
    dpys[0].addMap(new ScalarMap(vis_radiance, Display.RGB));
    dpys[0].addMap(new ScalarMap(ir_radiance, Display.ZAxis));
    dpys[0].addMap(new ConstantMap(0.5, Display.Blue));
    dpys[0].addMap(new ConstantMap(0.5, Display.Red));
    ScalarMap map1contour;
    map1contour = new ScalarMap(vis_radiance, Display.IsoContour);
    dpys[0].addMap(map1contour);
    if (uneven) {
      ContourControl control = (ContourControl) map1contour.getControl();
      float[] levs = {10.0f, 12.0f, 14.0f, 16.0f, 24.0f, 32.0f, 40.0f};
      control.setLevels(levs, 15.0f, true);
      control.enableLabels(true);
    }

    DataReferenceImpl ref_imaget1 = new DataReferenceImpl("ref_imaget1");
    ref_imaget1.setData(imaget1);
    dpys[0].addReference(ref_imaget1, null);
  }
 public DisplayableData getImageDisplay() {
   if (imageDisplay == null) {
     try {
       uniqueRangeType = RealType.getRealType(rangeType.getName() + "_" + cnt++);
       imageDisplay =
           new HydraRGBDisplayable("image", uniqueRangeType, null, true, displayControl);
     } catch (Exception e) {
       LogUtil.logException("MultiSpectralDisplay.getImageDisplay", e);
     }
   }
   return imageDisplay;
 }
Exemple #4
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  // type 'java Parallel' to run this application
  public static void main(String args[]) throws VisADException, RemoteException, IOException {

    RealType index = RealType.getRealType("index");
    RealType[] coords = new RealType[NCOORDS];
    for (int i = 0; i < NCOORDS; i++) {
      coords[i] = RealType.getRealType("coord" + i);
    }
    RealTupleType range = new RealTupleType(coords);
    FunctionType ftype = new FunctionType(index, range);
    Integer1DSet index_set = new Integer1DSet(NROWS);

    float[][] samples = new float[NCOORDS][NROWS];
    for (int i = 0; i < NCOORDS; i++) {
      for (int j = 0; j < NROWS; j++) {
        samples[i][j] = (float) Math.random();
      }
    }

    FlatField data = new FlatField(ftype, index_set);
    data.setSamples(samples, false);

    // create a 2-D Display using Java3D
    DisplayImpl display = new DisplayImplJ3D("display", new TwoDDisplayRendererJ3D());

    parallel(display, data);

    // create JFrame (i.e., a window) for display and slider
    JFrame frame = new JFrame("Parallel Coordinates VisAD Application");
    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);
  }
Exemple #5
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  void setupServerData(LocalDisplay[] dpys) throws RemoteException, VisADException {
    RealType[] time = {RealType.Time};
    RealType[] types = {RealType.Latitude, RealType.Longitude};
    RealTupleType earth_location = new RealTupleType(types);
    RealType vis_radiance = RealType.getRealType("vis_radiance");
    RealType ir_radiance = RealType.getRealType("ir_radiance");
    RealType[] types2 = {vis_radiance, ir_radiance};
    RealTupleType radiance = new RealTupleType(types2);
    FunctionType image_tuple = new FunctionType(earth_location, radiance);
    RealType[] types4 = {ir_radiance, vis_radiance};
    RealTupleType ecnaidar = new RealTupleType(types4);
    FunctionType image_bumble = new FunctionType(earth_location, ecnaidar);
    RealTupleType time_type = new RealTupleType(time);
    FunctionType time_images = new FunctionType(time_type, image_tuple);

    int size = 64;
    FlatField imaget1 = FlatField.makeField(image_tuple, size, false);
    FlatField wasp = FlatField.makeField(image_bumble, size, false);

    int ntimes1 = 4;

    double start = new DateTime(1999, 122, 57060).getValue();
    Set time_set = new Linear1DSet(time_type, start, start + 3600.0 * (ntimes1 - 1.0), ntimes1);

    FieldImpl image_sequence = new FieldImpl(time_images, time_set);
    FlatField temp = imaget1;
    Real[] reals30 = {
      new Real(vis_radiance, (float) size / 4.0f), new Real(ir_radiance, (float) size / 8.0f)
    };
    RealTuple val = new RealTuple(reals30);
    for (int i = 0; i < ntimes1; i++) {
      image_sequence.setSample(i, temp);
      temp = (FlatField) temp.add(val);
    }

    dpys[0].addMap(new ScalarMap(RealType.Latitude, Display.YAxis));
    dpys[0].addMap(new ScalarMap(RealType.Longitude, Display.XAxis));
    dpys[0].addMap(new ScalarMap(vis_radiance, Display.Red));
    dpys[0].addMap(new ScalarMap(ir_radiance, Display.Green));
    dpys[0].addMap(new ConstantMap(0.5, Display.Blue));
    dpys[0].addMap(new ScalarMap(RealType.Time, Display.ZAxis));

    GraphicsModeControl mode = dpys[0].getGraphicsModeControl();
    mode.setScaleEnable(true);

    DataReference ref_image_sequence = new DataReferenceImpl("ref_big_tuple");
    ref_image_sequence.setData(image_sequence);
    dpys[0].addReference(ref_image_sequence, null);
  }
Exemple #6
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  /**
   * Constructs from a name, an existing RealType, a coordinate system transformation, and a default
   * domain set. The name of the quantity will be that of the RealType.
   *
   * @param realType The existing RealType.
   * @param coordSys The coordinate system transformation.
   * @param domain The default domain set.
   * @throws TypeException if an instance cannot be created.
   * @throws VisADException if a core VisAD failure occurs.
   */
  protected ScalarQuantity(RealType realType, CoordinateSystem coordSys, visad.Set domain)
      throws TypeException, VisADException {

    super(realType.getName(), new RealTupleType(realType, coordSys, domain));

    this.realType = realType;
  }
Exemple #7
0
 /**
  * set up the types
  *
  * @throws VisADException On badness
  */
 private void setupTypes() throws VisADException {
   if (curve_type == null) {
     RealTupleType latlon = RealTupleType.LatitudeLongitudeTuple;
     curve_type = new SetType(latlon);
     // (front_index ->
     //    ((Latitude, Longitude) -> (front_red, front_green, front_blue)))
     count++;
     front_index = RealType.getRealType("front_index" + count);
     front_red = RealType.getRealType("front_red" + count);
     front_green = RealType.getRealType("front_green" + count);
     front_blue = RealType.getRealType("front_blue" + count);
     RealTupleType rgb = new RealTupleType(front_red, front_green, front_blue);
     front_inner = new FunctionType(latlon, rgb);
     front_type = new FunctionType(front_index, front_inner);
     fronts_type = new FunctionType(RealType.Time, front_type);
   }
 }
Exemple #8
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  void setupServerData(LocalDisplay[] dpys) throws RemoteException, VisADException {
    Unit super_degree = CommonUnit.degree.scale(2.5);
    RealType lon = RealType.getRealType("lon", super_degree);

    DataReference ref = loadFile();
    if (ref == null) {
      System.err.println("must specify netCDF file name");
      System.exit(1);
      return;
    }

    FieldImpl netcdf_data = (FieldImpl) ref.getData();

    // compute ScalarMaps from type components
    FunctionType ftype = (FunctionType) netcdf_data.getType();
    RealTupleType dtype = ftype.getDomain();
    MathType rntype = ftype.getRange();
    int n = dtype.getDimension();
    dpys[0].addMap(new ScalarMap((RealType) dtype.getComponent(0), Display.XAxis));
    if (n > 1) {
      dpys[0].addMap(new ScalarMap((RealType) dtype.getComponent(1), Display.YAxis));
    }
    if (n > 2) {
      dpys[0].addMap(new ScalarMap((RealType) dtype.getComponent(2), Display.ZAxis));
    }
    if (rntype instanceof RealType) {
      dpys[0].addMap(new ScalarMap((RealType) rntype, Display.Green));
      if (n <= 2) {
        dpys[0].addMap(new ScalarMap((RealType) rntype, Display.ZAxis));
      }
    } else if (rntype instanceof RealTupleType) {
      int m = ((RealTupleType) rntype).getDimension();
      RealType rr = (RealType) ((RealTupleType) rntype).getComponent(0);
      dpys[0].addMap(new ScalarMap(rr, Display.Green));
      if (n <= 2) {
        if (m > 1) {
          rr = (RealType) ((RealTupleType) rntype).getComponent(1);
        }
        dpys[0].addMap(new ScalarMap(rr, Display.ZAxis));
      }
    }
    dpys[0].addMap(new ConstantMap(0.5, Display.Red));
    dpys[0].addMap(new ConstantMap(0.0, Display.Blue));

    dpys[0].addReference(ref, null);

    System.out.println("now saving data as 'save.nc' and re-reading");

    Plain plain = new Plain();
    try {
      plain.save("save.nc", netcdf_data, true);
      netcdf_data = (FieldImpl) plain.open("save.nc");
    } catch (IOException e) {
      System.err.println("Couldn't open \"save.nc\": " + e.getMessage());
      System.exit(1);
      return;
    }
  }
Exemple #9
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  /**
   * Sets the RealType of the contoured parameter.
   *
   * @param realType The RealType of the contoured parameter. May not be <code>null</code>.
   * @throws VisADException VisAD failure.
   * @throws RemoteException Java RMI failure.
   */
  protected void setContourRealType(RealType realType) throws RemoteException, VisADException {

    if (!realType.equals(contourRealType)) {
      RealType oldValue = contourRealType;

      contourRealType = realType;

      setContourMaps();
      firePropertyChange(CONTOUR_REAL_TYPE, oldValue, contourRealType);
    }
  }
 public FlatField getImageDataFrom(final float channel) {
   FlatField imageData = null;
   try {
     MultiDimensionSubset select = null;
     Hashtable table = dataChoice.getProperties();
     Enumeration keys = table.keys();
     while (keys.hasMoreElements()) {
       Object key = keys.nextElement();
       if (key instanceof MultiDimensionSubset) {
         select = (MultiDimensionSubset) table.get(key);
       }
     }
     HashMap subset = select.getSubset();
     imageData = data.getImage(channel, subset);
     uniqueRangeType = RealType.getRealType(rangeType.getName() + "_" + cnt++);
     imageData = changeRangeType(imageData, uniqueRangeType);
   } catch (Exception e) {
     LogUtil.logException("MultiSpectralDisplay.getImageDataFrom", e);
   }
   return imageData;
 }
Exemple #11
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  void setupServerData(LocalDisplay[] dpys) throws RemoteException, VisADException {
    RealType x = RealType.getRealType("x");
    RealType y = RealType.getRealType("y");
    Unit super_degree = CommonUnit.degree.scale(2.5);
    RealType lon = RealType.getRealType("lon", super_degree);
    RealType radius = RealType.getRealType("radius");
    RealTupleType cartesian = new RealTupleType(x, y);
    PolarCoordinateSystem polar_coord_sys = new PolarCoordinateSystem(cartesian);
    RealTupleType polar = new RealTupleType(lon, radius, polar_coord_sys, null);

    RealType vis_radiance = RealType.getRealType("vis_radiance");
    RealType ir_radiance = RealType.getRealType("ir_radiance");
    RealType[] types2 = {vis_radiance, ir_radiance};
    RealTupleType radiance = new RealTupleType(types2);

    FunctionType image_polar = new FunctionType(polar, radiance);
    Unit[] units = {super_degree, null};
    Linear2DSet domain_set =
        new Linear2DSet(polar, 0.0, 60.0, 61, 0.0, 60.0, 61, polar_coord_sys, units, null);
    FlatField imaget1 = new FlatField(image_polar, domain_set);
    FlatField.fillField(imaget1, 1.0, 30.0);

    dpys[0].addMap(new ScalarMap(x, Display.XAxis));
    dpys[0].addMap(new ScalarMap(y, Display.YAxis));
    dpys[0].addMap(new ScalarMap(vis_radiance, Display.Green));
    dpys[0].addMap(new ConstantMap(0.5, Display.Red));
    dpys[0].addMap(new ConstantMap(0.0, Display.Blue));

    DataReferenceImpl ref_imaget1 = new DataReferenceImpl("ref_imaget1");
    ref_imaget1.setData(imaget1);
    dpys[0].addReference(ref_imaget1, null);
  }
Exemple #12
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  /** create parallel coordinates display for data */
  public static void parallel(DisplayImpl display, FlatField data)
      throws VisADException, RemoteException {

    FunctionType ftype = (FunctionType) data.getType();
    RealType index = (RealType) ftype.getDomain().getComponent(0);
    RealTupleType range = (RealTupleType) ftype.getRange();
    int ncoords = range.getDimension();
    int nrows = data.getLength();
    Set index_set = data.getDomainSet();
    float[][] samples = data.getFloats(false);

    RealType x = RealType.getRealType("coordinate");
    RealType y = RealType.getRealType("value");
    SetType xy = new SetType(new RealTupleType(x, y));
    FunctionType ptype = new FunctionType(index, xy);
    FieldImpl pfield = new FieldImpl(ptype, index_set);
    for (int j = 0; j < nrows; j++) {
      float[][] locs = new float[2][ncoords];
      for (int i = 0; i < ncoords; i++) {
        locs[0][i] = i;
        locs[1][i] = samples[i][j];
      }
      Gridded2DSet set = new Gridded2DSet(xy, locs, ncoords);
      pfield.setSample(j, set, false);
    }

    // create a DataReference for river system
    DataReference parallel_ref = new DataReferenceImpl("parallel");
    parallel_ref.setData(pfield);

    display.addMap(new ScalarMap(x, Display.XAxis));
    display.addMap(new ScalarMap(y, Display.YAxis));

    // enable axis scales
    display.getGraphicsModeControl().setScaleEnable(true);

    // link display to parallel display
    display.addReference(parallel_ref);
  }
Exemple #13
0
  static {
    Real mLfc = null;

    try {
      mLfc =
          (Real)
              RealType.getRealType(
                      "LevelOfFreeConvection", AirPressure.getRealType().getDefaultUnit())
                  .missingData();
    } catch (Exception e) {
      System.err.print("Couldn't initialize class: ");
      e.printStackTrace();
      System.exit(1);
    }

    missingLfc = mLfc;
  }
  /**
   * Obtains the RealType associated with this class.
   *
   * @return The RealType associated with this class.
   * @throws VisADException Couldn't perform necessary VisAD operation.
   */
  public static RealType getRealType() throws VisADException {

    if (realType == null) {
      synchronized (MolecularWeightOfDryAir.class) {
        if (realType == null) {
          try {
            realType =
                RealType.getRealType(
                    "MolecularWeightOfDryAir", SI.kilogram.divide(SI.mole), (Set) null);
          }
          /*
           * Can't happen because the above unit expression is valid.
           */
          catch (UnitException e) {
          }
        }
      }
    }

    return realType;
  }
  /**
   * I have no idea what this does.
   *
   * @param grid sampling grid
   * @param index some sort of index
   * @return a new flat field with something different
   * @throws RemoteException Java RMI error
   * @throws VisADException VisAD error
   */
  private static FlatField hatFieldOld(Set grid, int index) throws VisADException, RemoteException {

    CoordinateSystem cs = grid.getCoordinateSystem();
    boolean hasCS = (cs != null);

    RealTupleType rtt = (hasCS) ? cs.getReference() : ((SetType) grid.getType()).getDomain();

    int latI = rtt.getIndex(RealType.Latitude);

    if (latI == -1) {
      throw new IllegalArgumentException(grid.toString());
    }

    int lonI = rtt.getIndex(RealType.Longitude);

    if (lonI == -1) {
      throw new IllegalArgumentException(grid.toString());
    }

    if (grid.getManifoldDimension() < 2) {
      throw new IllegalArgumentException(grid.toString());
    }

    int[][] neighbors = grid.getNeighbors(index);
    LatLonPointImpl refPt = new LatLonPointImpl();
    LatLonPointImpl neiPt = new LatLonPointImpl();
    Bearing bearing = new Bearing();
    float[] hat1 = new float[2];
    float[] hat2 = new float[2];
    float[][] hat = new float[2][grid.getLength()];

    for (int i = 0; i < neighbors.length; i++) {
      float[][] refCoords = grid.indexToValue(new int[] {i});
      if (hasCS) {
        refCoords = cs.toReference(refCoords);
      }

      float[][] neiCoords = grid.indexToValue(neighbors[i]);
      if (hasCS) {
        neiCoords = cs.toReference(neiCoords);
      }

      refPt.set(refCoords[latI][0], refCoords[lonI][0]);
      compute(refPt, neiPt, neiCoords[latI][0], neiCoords[lonI][0], -180, bearing, hat1);

      float d1 = (float) bearing.getDistance();

      compute(refPt, neiPt, neiCoords[latI][1], neiCoords[lonI][1], 0, bearing, hat2);

      float d2 = (float) bearing.getDistance();
      boolean bad1 = Double.isNaN(d1);
      boolean bad2 = Double.isNaN(d2);

      if (bad1 && bad2) {
        hat[0][i] = Float.NaN;
        hat[1][i] = Float.NaN;
      } else {
        if (bad1) {
          hat[0][i] = hat2[0];
          hat[1][i] = hat2[1];
        } else if (bad2) {
          hat[0][i] = hat1[0];
          hat[1][i] = hat1[1];
        } else {
          float tot = d1 + d2;
          float c1 = d2 / tot;
          float c2 = d1 / tot;
          float xhat = c1 * hat1[0] + c2 * hat2[0];
          float yhat = c1 * hat1[1] + c2 * hat2[1];
          float mag = (float) Math.sqrt(xhat * xhat + yhat * yhat);

          hat[0][i] = xhat / mag;
          hat[1][i] = yhat / mag;
        }
      }
    }

    FlatField hatField =
        new FlatField(
            new FunctionType(
                ((SetType) grid.getType()).getDomain(),
                new RealTupleType(
                    RealType.getRealType("xHat", CommonUnit.dimensionless),
                    RealType.getRealType("yHat", CommonUnit.dimensionless))),
            grid);

    hatField.setSamples(hat, false);

    return hatField;
  }
  /**
   * The returned {@link visad.FlatField} will have NaN-s for those unit vector components that
   * could not be computed.
   *
   * @param grid The spatial grid.
   * @param index The index of the manifold dimension along which to compute the unit vector.
   * @return A field of components of the unit vector for the given manifold dimension.
   * @throws NullPointerException if the grid is <code>null</code>.
   * @throws IllegalArgumentException if the manifold dimension of the grid is less than 2 or if the
   *     grid doesn't contain {@link visad.RealType#Latitude} and {@link visad.RealType#Longitude}.
   * @throws VisADException if a VisAD failure occurs.
   * @throws RemoteException if a Java RMI failure occurs.
   */
  private static FlatField hatFieldNew(Set grid, int index) throws VisADException, RemoteException {

    CoordinateSystem cs = grid.getCoordinateSystem();
    boolean hasCS = cs != null;

    RealTupleType rtt = (hasCS) ? cs.getReference() : ((SetType) grid.getType()).getDomain();

    int latI = rtt.getIndex(RealType.Latitude);

    if (latI == -1) {
      throw new IllegalArgumentException(rtt.toString());
    }

    int lonI = rtt.getIndex(RealType.Longitude);
    if (lonI == -1) {
      throw new IllegalArgumentException(rtt.toString());
    }

    if (grid.getManifoldDimension() < 2) {
      throw new IllegalArgumentException(grid.toString());
    }

    int[][] neighbors = grid.getNeighbors(index);
    LatLonPointImpl refPt = new LatLonPointImpl();
    LatLonPointImpl neiPt = new LatLonPointImpl();
    Bearing bearing = new Bearing();
    float[] hat1 = new float[2];
    float[] hat2 = new float[2];
    float[][] hat = new float[2][grid.getLength()];

    float[][] refCoords = null;
    float[][] neiCoords = null;
    float[][] domainSamples = grid.getSamples(false);

    refCoords = (hasCS) ? cs.toReference(Set.copyFloats(domainSamples)) : domainSamples;
    // If the grid is lat/lon or has an IdentityCoordinateSystem
    // don't do the rotation
    // TODO:  handle rotated lat/lon grids
    if (!hasCS
        || (refCoords == domainSamples)
        || (Arrays.equals(refCoords[latI], domainSamples[latI])
            && Arrays.equals(refCoords[lonI], domainSamples[lonI]))) {
      if (index == 0) {
        Arrays.fill(hat[0], 1);
        Arrays.fill(hat[1], 0);
      } else {
        Arrays.fill(hat[0], 0);
        Arrays.fill(hat[1], 1);
      }
    } else {

      float latBefore, lonBefore, latAfter, lonAfter;
      // int backOffset = (index==0) ? -180 : 0;
      // int foreOffset = (index==0) ? 0 : -180;
      int backOffset = -180;
      int foreOffset = 0;
      for (int i = 0; i < neighbors.length; i++) {
        refPt.set(refCoords[latI][i], refCoords[lonI][i]);
        if ((neighbors[i][0] < 0) || (neighbors[i][0] >= neighbors.length)) {
          latBefore = Float.NaN;
          lonBefore = Float.NaN;
        } else {
          latBefore = refCoords[latI][neighbors[i][0]];
          lonBefore = refCoords[lonI][neighbors[i][0]];
        }
        if ((neighbors[i][1] < 0) || (neighbors[i][1] >= neighbors.length)) {
          latAfter = Float.NaN;
          lonAfter = Float.NaN;
        } else {
          latAfter = refCoords[latI][neighbors[i][1]];
          lonAfter = refCoords[lonI][neighbors[i][1]];
        }

        compute(refPt, neiPt, latBefore, lonBefore, backOffset, bearing, hat1);

        float d1 = (float) bearing.getDistance();

        compute(refPt, neiPt, latAfter, lonAfter, foreOffset, bearing, hat2);

        float d2 = (float) bearing.getDistance();
        boolean bad1 = Double.isNaN(d1);
        boolean bad2 = Double.isNaN(d2);

        if (bad1 && bad2) {
          hat[0][i] = Float.NaN;
          hat[1][i] = Float.NaN;
        } else {
          if (bad1) {
            hat[0][i] = hat2[0];
            hat[1][i] = hat2[1];
          } else if (bad2) {
            hat[0][i] = hat1[0];
            hat[1][i] = hat1[1];
          } else {
            float tot = d1 + d2;
            float c1 = d2 / tot;
            float c2 = d1 / tot;
            float xhat = c1 * hat1[0] + c2 * hat2[0];
            float yhat = c1 * hat1[1] + c2 * hat2[1];
            float mag = (float) Math.sqrt(xhat * xhat + yhat * yhat);

            hat[0][i] = xhat / mag;
            hat[1][i] = yhat / mag;
          }
        }
      }
    }

    FlatField hatField =
        new FlatField(
            new FunctionType(
                ((SetType) grid.getType()).getDomain(),
                new RealTupleType(
                    RealType.getRealType("xHat", CommonUnit.dimensionless),
                    RealType.getRealType("yHat", CommonUnit.dimensionless))),
            grid);

    hatField.setSamples(hat, false);
    return hatField;
  }
 /**
  * Returns the {@link visad.RealType} for the <em>Y</em> component of a grid-relative wind. The
  * <em>Y</em> component is in the direction of increasing second dimension of the grid. The name
  * of the component will be <em>Y</em><code>_Wind_Component</code>, where <em>Y</em> is the name
  * of the second dimension of the grid, and the default unit will be {@link #DEFAULT_SPEED_UNIT}.
  *
  * @param grid The grid.
  * @return The {@link visad.RealType} of the Y wind component.
  * @throws VisADException if a VisAD failure occurs.
  */
 public static RealType yWindType(SampledSet grid) throws VisADException {
   return RealType.getRealType(yComponentName(grid), DEFAULT_SPEED_UNIT);
 }
Exemple #18
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  /**
   * run 'java FlowTest middle_latitude' to test with (lat, lon) run 'java FlowTest middle_latitude
   * x' to test with (lon, lat) adjust middle_latitude for south or north
   */
  public static void main(String args[]) throws VisADException, RemoteException {
    double mid_lat = -10.0;
    if (args.length > 0) {
      try {
        mid_lat = Double.valueOf(args[0]).doubleValue();
      } catch (NumberFormatException e) {
      }
    }
    boolean swap = (args.length > 1);
    RealType lat = RealType.Latitude;
    RealType lon = RealType.Longitude;
    RealType[] types;
    if (swap) {
      types = new RealType[] {lon, lat};
    } else {
      types = new RealType[] {lat, lon};
    }
    RealTupleType earth_location = new RealTupleType(types);
    System.out.println("earth_location = " + earth_location + " mid_lat = " + mid_lat);

    RealType flowx = RealType.getRealType("flowx", CommonUnit.meterPerSecond);
    RealType flowy = RealType.getRealType("flowy", CommonUnit.meterPerSecond);
    RealType red = RealType.getRealType("red");
    RealType green = RealType.getRealType("green");
    EarthVectorType flowxy = new EarthVectorType(flowx, flowy);
    TupleType range = null;

    range = new TupleType(new MathType[] {flowxy, red, green});
    FunctionType flow_field = new FunctionType(earth_location, range);

    DisplayImpl display = new DisplayImplJ3D("display1", new TwoDDisplayRendererJ3D());
    ScalarMap xmap = new ScalarMap(lon, Display.XAxis);
    display.addMap(xmap);
    ScalarMap ymap = new ScalarMap(lat, Display.YAxis);
    display.addMap(ymap);
    ScalarMap flowx_map = new ScalarMap(flowx, Display.Flow1X);
    display.addMap(flowx_map);
    flowx_map.setRange(-10.0, 10.0);
    ScalarMap flowy_map = new ScalarMap(flowy, Display.Flow1Y);
    display.addMap(flowy_map);
    flowy_map.setRange(-10.0, 10.0);
    FlowControl flow_control = (FlowControl) flowy_map.getControl();
    flow_control.setFlowScale(0.05f);
    display.addMap(new ScalarMap(red, Display.Red));
    display.addMap(new ScalarMap(green, Display.Green));
    display.addMap(new ConstantMap(1.0, Display.Blue));

    double lonlow = -10.0;
    double lonhi = 10.0;
    double latlow = mid_lat - 10.0;
    double lathi = mid_lat + 10.0;
    Linear2DSet set;
    if (swap) {
      set = new Linear2DSet(earth_location, lonlow, lonhi, N, latlow, lathi, N);
    } else {
      set = new Linear2DSet(earth_location, latlow, lathi, N, lonlow, lonhi, N);
    }
    double[][] values = new double[4][N * N];
    int m = 0;
    for (int i = 0; i < N; i++) {
      for (int j = 0; j < N; j++) {
        int k = i;
        int l = j;
        if (swap) {
          k = j;
          l = i;
        }
        double u = (N - 1.0) / 2.0 - l;
        double v = k - (N - 1.0) / 2.0;
        // double u = 2.0 * k / (N - 1.0) - 1.0;
        // double v = 2.0 * l / (N - 1.0);
        double fx = 6.0 * u;
        double fy = 6.0 * v;
        values[0][m] = fx;
        values[1][m] = fy;
        values[2][m] = u;
        values[3][m] = v;
        m++;
      }
    }
    FlatField field = new FlatField(flow_field, set);
    field.setSamples(values);
    DataReferenceImpl ref = new DataReferenceImpl("ref");
    ref.setData(field);
    display.addReference(ref);

    // create JFrame (i.e., a window) for display and slider
    JFrame frame = new JFrame("test FlowTest");
    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);
  }
Exemple #19
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 /**
  * Returns the single value of this quantity corresponding to a numeric amount in the default
  * unit. The error estimate will be <code>null</code>.
  *
  * @param amount The numeric value.
  * @return The single value of this quantity corresponding to the input.
  * @throws VisADException VisAD failure.
  * @see #newReal(double amount, Unit unit)
  */
 public final Real newReal(double amount) throws VisADException {
   return newReal(amount, realType.getDefaultUnit());
 }
Exemple #20
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 /**
  * Constructs from a name, default unit, default representational set, and an attribute mask.
  *
  * @param name The name of the scalar quantity.
  * @param unit The default unit of the scalar quantity.
  * @param set The default representational set of the quantity. It shall be an instance of <code>
  *     visad.DoubleSet</code>, <code>visad.FloatSet</code>, <code>visad.Integer1DSet</code>, or
  *     <code>null</code>. If <code>null</code>, then the default is <code>visad.FloatSet</code>.
  * @param attrMask The attribute mask: <code>0</code> or <code>INTERVAL</code>.
  * @throws VisADException VisAD failure.
  * @see #ScalarQuantity(RealType realType)
  */
 protected ScalarQuantity(String name, Unit unit, visad.Set set, int attrMask)
     throws VisADException {
   this(RealType.getRealType(name, unit, set, attrMask));
 }
Exemple #21
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  /** used by preParse */
  private static String preParseOnce(String s, FormulaManager fm) {
    // convert to lower case
    String l = s.toLowerCase();

    // scan entire string
    int len = l.length();
    boolean letter = false;
    String ns = "";
    for (int i = 0; i < len; i++) {
      if (!letter && i < len - 1 && l.substring(i, i + 2).equals("d(")) {
        // convert d(x)/d(y) notation to standard derive(x, y) notation
        i += 2;
        int s1 = i;
        for (int paren = 1; paren > 0; i++) {
          // check for correct syntax
          if (i >= len) return s;
          char c = l.charAt(i);
          if (c == '(') paren++;
          if (c == ')') paren--;
        }
        int e1 = i - 1;
        // check for correct syntax
        if (i > len - 3 || !l.substring(i, i + 3).equals("/d(")) return s;
        i += 3;
        int s2 = i;
        for (int paren = 1; paren > 0; i++) {
          // check for correct syntax
          if (i >= len) return s;
          char c = l.charAt(i);
          if (c == '(') paren++;
          if (c == ')') paren--;
        }
        int e2 = i - 1;
        ns = ns + "derive(" + s.substring(s1, e1) + "," + s.substring(s2, e2) + ")";
        i--;
      } else if (!letter && i < len - 4 && l.substring(i, i + 5).equals("link(")) {
        // evaluate link(code) notation and replace with link variable
        i += 5;
        int s1 = i;
        try {
          while (l.charAt(i) != '(') i++;
        } catch (ArrayIndexOutOfBoundsException exc) {
          // incorrect syntax
          return s;
        }
        i++;
        int e1 = i - 1;
        int s2 = i;
        for (int paren = 2; paren > 1; i++) {
          // check for correct syntax
          if (i >= len) return s;
          char c = l.charAt(i);
          if (c == '(') paren++;
          if (c == ')') paren--;
        }
        int e2 = i - 1;
        // check for correct syntax
        if (i >= len || l.charAt(i) != ')') return s;
        String prestr = s.substring(s1, e1) + "(";
        String str = prestr;

        // parse method's arguments; determine if they are Data or RealType
        String sub = s.substring(s2, e2);
        StringTokenizer st = new StringTokenizer(sub, ",", false);
        boolean first = true;
        Vector v = new Vector();
        while (st.hasMoreTokens()) {
          String token = st.nextToken();
          if (first) first = false;
          else str = str + ",";
          RealType rt = RealType.getRealTypeByName(token);
          String sv = (rt == null ? "visad.Data" : "visad.RealType");
          v.add(sv);
          str = str + sv;
        }
        str = str + ")";

        // obtain Method object
        Method[] meths = FormulaUtil.stringsToMethods(new String[] {str});

        if (meths[0] == null) {
          // attempt to identify any matching methods by compressing
          // some or all of the arguments into array form
          int vlen = v.size();
          Vector vstrs = new Vector();
          for (int iv = 0; iv < vlen; iv++) {
            String si = (String) v.elementAt(iv);
            int lv = iv;
            String sl;
            while (lv < vlen) {
              sl = (String) v.elementAt(lv++);
              if (!sl.equals(si)) {
                break;
              }
              str = prestr;
              first = true;
              for (int j = 0; j < vlen; j++) {
                if (first) first = false;
                else str = str + ",";
                String sj = (String) v.elementAt(j);
                str = str + sj;
                if (iv == j) {
                  str = str + "[]";
                  j = lv - 1;
                }
              }
              str = str + ")";
              vstrs.add(str);
            }
          }
          String[] strlist = new String[vstrs.size()];
          vstrs.toArray(strlist);
          meths = FormulaUtil.stringsToMethods(strlist);
          int found = -1;
          for (int j = 0; j < meths.length && found < 0; j++) {
            if (meths[j] != null) found = j;
          }
          if (found >= 0) meths[0] = meths[found];
          else {
            // could not find a matching method
            return s;
          }
        }

        // store method object in a link variable
        String link = "link" + (++linkNum);
        try {
          fm.setThing(link, new VMethod(meths[0]));
        }
        // catch any errors setting the link variable
        catch (FormulaException exc) {
          return s;
        } catch (VisADException exc) {
          return s;
        } catch (RemoteException exc) {
          return s;
        }
        ns = ns + "linkx(" + link + "," + s.substring(s2, e2) + ")";
      } else if (!letter) {
        int j = i;
        char c = l.charAt(j++);
        while (j < len && ((c >= 'a' && c <= 'z') || (c >= '0' && c <= '9'))) {
          c = l.charAt(j++);
        }
        // check for end-of-string
        if (j == len) return ns + s.substring(i, len);
        if (c == '[') {
          // convert x[y] notation to standard getSample(x, y) notation
          int k = j;
          for (int paren = 1; paren > 0; k++) {
            // check for correct syntax
            if (k >= len) return s;
            c = l.charAt(k);
            if (c == '[') paren++;
            if (c == ']') paren--;
          }
          ns = ns + "getSample(" + s.substring(i, j - 1) + "," + s.substring(j, k - 1) + ")";
          i = k - 1;
        } else ns = ns + s.charAt(i);
      } else {
        // append character to new string
        ns = ns + s.charAt(i);
      }
      char c = (i < len) ? l.charAt(i) : '\0';
      letter = (c >= 'a' && c <= 'z');
    }
    return ns;
  }
  /** test BarbManipulationRendererJ3D */
  public static void main(String args[]) throws VisADException, RemoteException {

    System.out.println("BMR.main()");

    // construct RealTypes for wind record components
    RealType lat = RealType.Latitude;
    RealType lon = RealType.Longitude;
    RealType windx = RealType.getRealType("windx", CommonUnit.meterPerSecond);
    RealType windy = RealType.getRealType("windy", CommonUnit.meterPerSecond);
    RealType red = RealType.getRealType("red");
    RealType green = RealType.getRealType("green");

    // EarthVectorType extends RealTupleType and says that its
    // components are vectors in m/s with components parallel
    // to Longitude (positive east) and Latitude (positive north)
    EarthVectorType windxy = new EarthVectorType(windx, windy);

    RealType wind_dir = RealType.getRealType("wind_dir", CommonUnit.degree);
    RealType wind_speed = RealType.getRealType("wind_speed", CommonUnit.meterPerSecond);
    RealTupleType windds = null;
    if (args.length > 0) {
      System.out.println("polar winds");
      windds =
          new RealTupleType(
              new RealType[] {wind_dir, wind_speed}, new WindPolarCoordinateSystem(windxy), null);
    }

    // construct Java3D display and mappings that govern
    // how wind records are displayed
    DisplayImpl display = new DisplayImplJ3D("display1", new TwoDDisplayRendererJ3D());
    ScalarMap lonmap = new ScalarMap(lon, Display.XAxis);
    display.addMap(lonmap);
    ScalarMap latmap = new ScalarMap(lat, Display.YAxis);
    display.addMap(latmap);

    FlowControl flow_control;
    if (args.length > 0) {
      ScalarMap winds_map = new ScalarMap(wind_speed, Display.Flow1Radial);
      display.addMap(winds_map);
      winds_map.setRange(0.0, 1.0); // do this for barb rendering
      ScalarMap windd_map = new ScalarMap(wind_dir, Display.Flow1Azimuth);
      display.addMap(windd_map);
      windd_map.setRange(0.0, 360.0); // do this for barb rendering
      flow_control = (FlowControl) windd_map.getControl();
      flow_control.setFlowScale(0.15f); // this controls size of barbs
    } else {
      ScalarMap windx_map = new ScalarMap(windx, Display.Flow1X);
      display.addMap(windx_map);
      windx_map.setRange(-1.0, 1.0); // do this for barb rendering
      ScalarMap windy_map = new ScalarMap(windy, Display.Flow1Y);
      display.addMap(windy_map);
      windy_map.setRange(-1.0, 1.0); // do this for barb rendering
      flow_control = (FlowControl) windy_map.getControl();
      flow_control.setFlowScale(0.15f); // this controls size of barbs
    }

    display.addMap(new ScalarMap(red, Display.Red));
    display.addMap(new ScalarMap(green, Display.Green));
    display.addMap(new ConstantMap(1.0, Display.Blue));

    DataReferenceImpl[] refs = new DataReferenceImpl[N * N];
    int k = 0;
    // create an array of N by N winds
    for (int i = 0; i < N; i++) {
      for (int j = 0; j < N; j++) {
        double u = 2.0 * i / (N - 1.0) - 1.0;
        double v = 2.0 * j / (N - 1.0) - 1.0;

        // each wind record is a Tuple (lon, lat, (windx, windy), red, green)
        // set colors by wind components, just for grins
        Tuple tuple;
        double fx = 30.0 * u;
        double fy = 30.0 * v;
        if (args.length > 0) {
          double fd = Data.RADIANS_TO_DEGREES * Math.atan2(-fx, -fy);
          double fs = Math.sqrt(fx * fx + fy * fy);
          tuple =
              new Tuple(
                  new Data[] {
                    new Real(lon, 10.0 * u),
                    new Real(lat, 10.0 * v - 40.0),
                    new RealTuple(windds, new double[] {fd, fs}),
                    new Real(red, u),
                    new Real(green, v)
                  });
        } else {
          tuple =
              new Tuple(
                  new Data[] {
                    new Real(lon, 10.0 * u),
                    new Real(lat, 10.0 * v - 40.0),
                    new RealTuple(windxy, new double[] {fx, fy}),
                    new Real(red, u),
                    new Real(green, v)
                  });
        }

        // construct reference for wind record
        refs[k] = new DataReferenceImpl("ref_" + k);
        refs[k].setData(tuple);

        // link wind record to display via BarbManipulationRendererJ3D
        // so user can change barb by dragging it
        // drag with right mouse button and shift to change direction
        // drag with right mouse button and no shift to change speed
        BarbManipulationRendererJ3D renderer = new BarbManipulationRendererJ3D();
        renderer.setKnotsConvert(true);
        display.addReferences(renderer, refs[k]);

        // link wind record to a CellImpl that will listen for changes
        // and print them
        WindGetterJ3D cell = new WindGetterJ3D(flow_control, refs[k]);
        cell.addReference(refs[k]);

        k++;
      }
    }

    // instead of linking the wind record "DataReferenceImpl refs" to
    // the WindGetterJ3Ds, you can have some user interface event (e.g.,
    // the user clicks on "DONE") trigger code that does a getData() on
    // all the refs and stores the records in a file.

    // create JFrame (i.e., a window) for display and slider
    JFrame frame = new JFrame("test BarbManipulationRendererJ3D");
    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);
  }
  public synchronized void drag_direct(VisADRay ray, boolean first, int mouseModifiers) {
    if (barbValues == null || ref == null || shadow == null) return;

    if (first) {
      stop = false;
    } else {
      if (stop) return;
    }

    // modify direction if mshift != 0
    // modify speed if mctrl != 0
    // modify speed and direction if neither
    int mshift = mouseModifiers & InputEvent.SHIFT_MASK;
    int mctrl = mouseModifiers & InputEvent.CTRL_MASK;

    float o_x = (float) ray.position[0];
    float o_y = (float) ray.position[1];
    float o_z = (float) ray.position[2];
    float d_x = (float) ray.vector[0];
    float d_y = (float) ray.vector[1];
    float d_z = (float) ray.vector[2];

    if (pickCrawlToCursor) {
      if (first) {
        offset_count = OFFSET_COUNT_INIT;
      } else {
        if (offset_count > 0) offset_count--;
      }
      if (offset_count > 0) {
        float mult = ((float) offset_count) / ((float) OFFSET_COUNT_INIT);
        o_x += mult * offsetx;
        o_y += mult * offsety;
        o_z += mult * offsetz;
      }
    }

    if (first || refirst) {
      point_x = barbValues[2];
      point_y = barbValues[3];
      point_z = 0.0f;
      line_x = 0.0f;
      line_y = 0.0f;
      line_z = 1.0f; // lineAxis == 2 in DataRenderer.drag_direct
    } // end if (first || refirst)

    float[] x = new float[3]; // x marks the spot
    // DirectManifoldDimension = 2
    // intersect ray with plane
    float dot = (point_x - o_x) * line_x + (point_y - o_y) * line_y + (point_z - o_z) * line_z;
    float dot2 = d_x * line_x + d_y * line_y + d_z * line_z;
    if (dot2 == 0.0) return;
    dot = dot / dot2;
    // x is intersection
    x[0] = o_x + dot * d_x;
    x[1] = o_y + dot * d_y;
    x[2] = o_z + dot * d_z;
    /*
    System.out.println("x = " + x[0] + " " + x[1] + " " + x[2]);
    */
    try {

      Tuple data = (Tuple) link.getData();
      int n = ((TupleType) data.getType()).getNumberOfRealComponents();
      Real[] reals = new Real[n];

      int k = 0;
      int m = data.getDimension();
      for (int i = 0; i < m; i++) {
        Data component = data.getComponent(i);
        if (component instanceof Real) {
          reals[k++] = (Real) component;
        } else if (component instanceof RealTuple) {
          for (int j = 0; j < ((RealTuple) component).getDimension(); j++) {
            reals[k++] = (Real) ((RealTuple) component).getComponent(j);
          }
        }
      }

      if (first || refirst) {
        // get first Data flow vector
        for (int i = 0; i < 3; i++) {
          int j = flowToComponent[i];
          data_flow[i] = (j >= 0) ? (float) reals[j].getValue() : 0.0f;
        }

        if (coord != null) {
          float[][] ds = {{data_flow[0]}, {data_flow[1]}, {data_flow[2]}};
          ds = coord.toReference(ds);
          data_flow[0] = ds[0][0];
          data_flow[1] = ds[1][0];
          data_flow[2] = ds[2][0];
        }

        data_speed =
            (float)
                Math.sqrt(
                    data_flow[0] * data_flow[0]
                        + data_flow[1] * data_flow[1]
                        + data_flow[2] * data_flow[2]);
        float barb0 = barbValues[2] - barbValues[0];
        float barb1 = barbValues[3] - barbValues[1];
        /*
        System.out.println("data_flow = " + data_flow[0] + " " + data_flow[1] +
                           " " + data_flow[2]);
        System.out.println("barbValues = " + barbValues[0] + " " + barbValues[1] +
                           "   " + barbValues[2] + " " + barbValues[3]);
        System.out.println("data_speed = " + data_speed);
        */
      } // end if (first || refirst)

      // convert x to a flow vector, and from spatial to earth
      if (getRealVectorTypes(which_barb) instanceof EarthVectorType) {
        // don't worry about vector magnitude -
        // data_speed & display_speed take care of that
        float eps = 0.0001f; // estimate derivative with a little vector
        float[][] spatial_locs = {
          {barbValues[0], barbValues[0] + eps * (x[0] - barbValues[0])},
          {barbValues[1], barbValues[1] + eps * (x[1] - barbValues[1])},
          {0.0f, 0.0f}
        };
        /*
        System.out.println("spatial_locs = " + spatial_locs[0][0] + " " +
                           spatial_locs[0][1] + " " + spatial_locs[1][0] + " " +
                           spatial_locs[1][1]);
        */
        float[][] earth_locs = spatialToEarth(spatial_locs);
        // WLH - 18 Aug 99
        if (earth_locs == null) return;
        /*
        System.out.println("earth_locs = " + earth_locs[0][0] + " " +
                           earth_locs[0][1] + " " + earth_locs[1][0] + " " +
                           earth_locs[1][1]);
        */
        x[2] = 0.0f;
        x[0] =
            (earth_locs[1][1] - earth_locs[1][0])
                * ((float) Math.cos(Data.DEGREES_TO_RADIANS * earth_locs[0][0]));
        x[1] = earth_locs[0][1] - earth_locs[0][0];
        /*
        System.out.println("x = " + x[0] + " " + x[1] + " " + x[2]);
        */
      } else { // if (!(getRealVectorTypes(which_barb) instanceof EarthVectorType))
        // convert x to vector
        x[0] -= barbValues[0];
        x[1] -= barbValues[1];

        // adjust for spatial map scalings but don't worry about vector
        // magnitude - data_speed & display_speed take care of that
        // also, spatial is Cartesian
        double[] ranges = getRanges();
        for (int i = 0; i < 3; i++) {
          x[i] /= ranges[i];
        }
        /*
        System.out.println("ranges = " + ranges[0] + " " + ranges[1] +
                           " " + ranges[2]);
        System.out.println("x = " + x[0] + " " + x[1] + " " + x[2]);
        */
      }

      // WLH 6 August 99
      x[0] = -x[0];
      x[1] = -x[1];
      x[2] = -x[2];

      /* may need to do this for performance
            float[] xx = {x[0], x[1], x[2]};
            addPoint(xx);
      */

      float x_speed = (float) Math.sqrt(x[0] * x[0] + x[1] * x[1] + x[2] * x[2]);
      /* WLH 16 April 2002 - from Ken
            if (x_speed < 0.000001f) x_speed = 0.000001f;
      */
      if (x_speed < 0.01f) x_speed = 0.01f;
      if (first || refirst) {
        display_speed = x_speed;
      }
      refirst = false;

      if (mshift != 0) {
        // only modify data_flow direction
        float ratio = data_speed / x_speed;
        x[0] *= ratio;
        x[1] *= ratio;
        x[2] *= ratio;
        /*
        System.out.println("direction, ratio = " + ratio + " " +
                           data_speed + " " + x_speed);
        System.out.println("x = " + x[0] + " " + x[1] + " " + x[2]);
        */
      } else if (mctrl != 0) {
        // only modify data_flow speed
        float ratio = x_speed / display_speed;
        if (data_speed < EPS) {
          data_flow[0] = 2.0f * EPS;
          refirst = true;
        }
        x[0] = ratio * data_flow[0];
        x[1] = ratio * data_flow[1];
        x[2] = ratio * data_flow[2];
        /*
        System.out.println("speed, ratio = " + ratio + " " +
                           x_speed + " " + display_speed);
        System.out.println("x = " + x[0] + " " + x[1] + " " + x[2]);
        */
      } else {
        // modify data_flow speed and direction
        float ratio = data_speed / display_speed;
        /*
        System.out.println("data_speed = " + data_speed +
                           " display_speed = " + display_speed +
                           " ratio = " + ratio + " EPS = " + EPS);
        System.out.println("x = " + x[0] + " " + x[1] +" " + x[2] +
                           " x_speed = " + x_speed);
          data_speed = 21.213203 display_speed = 0.01 ratio = 2121.3203 EPS = 0.2
          x = 1.6170928E-4 1.6021729E-4 -0.0 x_speed = 0.01
          wind = (0.3430372, 0.33987218) at (-35.0, 5.0)
        */
        if (data_speed < EPS) {
          data_flow[0] = 2.0f * EPS;
          x[0] = data_flow[0];
          x[1] = data_flow[1];
          x[2] = data_flow[2];
          refirst = true;
        } else {
          x[0] *= ratio;
          x[1] *= ratio;
          x[2] *= ratio;
        }
      }

      if (coord != null) {
        float[][] xs = {{x[0]}, {x[1]}, {x[2]}};
        xs = coord.fromReference(xs);
        x[0] = xs[0][0];
        x[1] = xs[1][0];
        x[2] = xs[2][0];
      }

      // now replace flow values
      Vector vect = new Vector();
      for (int i = 0; i < 3; i++) {
        int j = flowToComponent[i];
        if (j >= 0) {
          RealType rtype = (RealType) reals[j].getType();
          reals[j] = new Real(rtype, (double) x[i], rtype.getDefaultUnit(), null);

          // WLH 31 Aug 2000
          Real r = reals[j];
          Unit overrideUnit = null;
          if (directMap[i] != null) {
            overrideUnit = directMap[i].getOverrideUnit();
          }
          Unit rtunit = rtype.getDefaultUnit();
          // units not part of Time string
          if (overrideUnit != null
              && !overrideUnit.equals(rtunit)
              && !RealType.Time.equals(rtype)) {
            double d = (float) overrideUnit.toThis((double) x[0], rtunit);
            r = new Real(rtype, d, overrideUnit);
            String valueString = r.toValueString();
            vect.addElement(rtype.getName() + " = " + valueString);
          } else {
            // create location string
            vect.addElement(rtype.getName() + " = " + x[i]);
          }
        }
      }
      getDisplayRenderer().setCursorStringVector(vect);

      Data newData = null;
      // now build new RealTuple or Flat Tuple
      if (data instanceof RealTuple) {
        newData =
            new RealTuple(
                ((RealTupleType) data.getType()), reals, ((RealTuple) data).getCoordinateSystem());
      } else {
        Data[] new_components = new Data[m];
        k = 0;
        for (int i = 0; i < m; i++) {
          Data component = data.getComponent(i);
          if (component instanceof Real) {
            new_components[i] = reals[k++];
          } else if (component instanceof RealTuple) {
            Real[] sub_reals = new Real[((RealTuple) component).getDimension()];
            for (int j = 0; j < ((RealTuple) component).getDimension(); j++) {
              sub_reals[j] = reals[k++];
            }
            new_components[i] =
                new RealTuple(
                    ((RealTupleType) component.getType()),
                    sub_reals,
                    ((RealTuple) component).getCoordinateSystem());
          }
        }
        newData = new Tuple(new_components, false);
      }
      ref.setData(newData);
    } catch (VisADException e) {
      // do nothing
      System.out.println("drag_direct " + e);
      e.printStackTrace();
    } catch (RemoteException e) {
      // do nothing
      System.out.println("drag_direct " + e);
      e.printStackTrace();
    }
  }
Exemple #24
0
  void setupServerData(LocalDisplay[] dpys) throws RemoteException, VisADException {
    RealType ir_radiance = RealType.getRealType("ir_radiance");
    RealType count = RealType.getRealType("count");
    FunctionType ir_histogram = new FunctionType(ir_radiance, count);
    RealType vis_radiance = RealType.getRealType("vis_radiance");

    int size = 64;
    FlatField histogram1 = FlatField.makeField(ir_histogram, size, false);
    Real direct = new Real(ir_radiance, 2.0);
    Real[] reals3;
    reals3 =
        new Real[] {new Real(count, 1.0), new Real(ir_radiance, 2.0), new Real(vis_radiance, 1.0)};
    RealTuple direct_tuple = new RealTuple(reals3);

    dpys[0].addMap(new ScalarMap(vis_radiance, Display.ZAxis));
    dpys[0].addMap(new ScalarMap(ir_radiance, Display.XAxis));
    dpys[0].addMap(new ScalarMap(count, Display.YAxis));
    dpys[0].addMap(new ScalarMap(count, Display.Green));

    GraphicsModeControl mode = dpys[0].getGraphicsModeControl();
    mode.setPointSize(5.0f);
    mode.setPointMode(false);
    mode.setScaleEnable(true);
    DisplayRendererJ3D dr = (DisplayRendererJ3D) dpys[0].getDisplayRenderer();
    dr.setClip(0, true, 1.0f, 0.0f, 0.0f, -1.0f);
    dr.setClip(1, true, -1.0f, 0.0f, 0.0f, -1.0f);
    dr.setClip(2, true, 0.0f, 1.0f, 0.0f, -1.0f);
    dr.setClip(3, true, 0.0f, -1.0f, 0.0f, -1.0f);
    dr.setClip(4, true, 0.0f, 0.0f, 1.0f, -1.0f);
    dr.setClip(5, true, 0.0f, 0.0f, -1.0f, -1.0f);

    DataReferenceImpl ref_direct = new DataReferenceImpl("ref_direct");
    ref_direct.setData(direct);
    DataReference[] refs1 = new DataReferenceImpl[] {ref_direct};
    dpys[0].addReferences(new DirectManipulationRendererJ3D(), refs1, null);

    DataReferenceImpl ref_direct_tuple;
    ref_direct_tuple = new DataReferenceImpl("ref_direct_tuple");
    ref_direct_tuple.setData(direct_tuple);
    DataReference[] refs2 = new DataReference[] {ref_direct_tuple};
    dpys[0].addReferences(new DirectManipulationRendererJ3D(), refs2, null);

    DataReferenceImpl ref_histogram1;
    ref_histogram1 = new DataReferenceImpl("ref_histogram1");
    ref_histogram1.setData(histogram1);
    DataReference[] refs3 = new DataReference[] {ref_histogram1};
    dpys[0].addReferences(new DirectManipulationRendererJ3D(), refs3, null);

    new Delay(500);

    dpys[1].addMap(new ScalarMap(ir_radiance, Display.XAxis));
    dpys[1].addMap(new ScalarMap(count, Display.YAxis));
    dpys[1].addMap(new ScalarMap(count, Display.Green));

    GraphicsModeControl mode2 = dpys[1].getGraphicsModeControl();
    mode2.setPointSize(5.0f);
    mode2.setPointMode(false);

    dpys[1].addReferences(new DirectManipulationRendererJ2D(), refs1, null);
    dpys[1].addReferences(new DirectManipulationRendererJ2D(), refs2, null);
    dpys[1].addReferences(new DirectManipulationRendererJ2D(), refs3, null);

    dpys[0].addDisplayListener(this);
    dpys[1].addDisplayListener(this);
  }
Exemple #25
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  void setupServerData(LocalDisplay[] dpys) throws RemoteException, VisADException {
    RealType xr = RealType.getRealType("xr");
    RealType yr = RealType.getRealType("yr");
    RealType zr = RealType.getRealType("zr");
    RealType wr = RealType.getRealType("wr");
    RealType[] types3d = {xr, yr, zr};
    RealTupleType earth_location3d = new RealTupleType(types3d);
    FunctionType grid_tuple = new FunctionType(earth_location3d, wr);

    // int NX = 32;
    // int NY = 32;
    // int NZ = 32;
    int NX = 35;
    int NY = 35;
    int NZ = 35;
    Integer3DSet set = new Integer3DSet(NX, NY, NZ);
    FlatField grid3d = new FlatField(grid_tuple, set);

    float[][] values = new float[1][NX * NY * NZ];
    int k = 0;
    for (int iz = 0; iz < NZ; iz++) {
      // double z = Math.PI * (-1.0 + 2.0 * iz / (NZ - 1.0));
      double z = Math.PI * (-1.0 + 2.0 * iz * iz / ((NZ - 1.0) * (NZ - 1.0)));
      for (int iy = 0; iy < NY; iy++) {
        double y = -1.0 + 2.0 * iy / (NY - 1.0);
        for (int ix = 0; ix < NX; ix++) {
          double x = -1.0 + 2.0 * ix / (NX - 1.0);
          double r = x - 0.5 * Math.cos(z);
          double s = y - 0.5 * Math.sin(z);
          double dist = Math.sqrt(r * r + s * s);
          values[0][k] = (float) ((dist < 0.1) ? 10.0 : 1.0 / dist);
          k++;
        }
      }
    }
    grid3d.setSamples(values);

    dpys[0].addMap(new ScalarMap(xr, Display.XAxis));
    dpys[0].addMap(new ScalarMap(yr, Display.YAxis));
    dpys[0].addMap(new ScalarMap(zr, Display.ZAxis));

    ScalarMap xrange = new ScalarMap(xr, Display.SelectRange);
    ScalarMap yrange = new ScalarMap(yr, Display.SelectRange);
    ScalarMap zrange = new ScalarMap(zr, Display.SelectRange);
    dpys[0].addMap(xrange);
    dpys[0].addMap(yrange);
    dpys[0].addMap(zrange);

    GraphicsModeControl mode = dpys[0].getGraphicsModeControl();
    mode.setScaleEnable(true);

    if (nice) mode.setTransparencyMode(DisplayImplJ3D.NICEST);
    mode.setTexture3DMode(texture3DMode);

    // new
    RealType duh = RealType.getRealType("duh");
    int NT = 32;
    Linear2DSet set2 = new Linear2DSet(0.0, (double) NX, NT, 0.0, (double) NY, NT);
    RealType[] types2d = {xr, yr};
    RealTupleType domain2 = new RealTupleType(types2d);
    FunctionType ftype2 = new FunctionType(domain2, duh);
    float[][] v2 = new float[1][NT * NT];
    for (int i = 0; i < NT * NT; i++) {
      v2[0][i] = (i * i) % (NT / 2 + 3);
    }
    // float[][] v2 = {{1.0f,2.0f,3.0f,4.0f}};
    FlatField field2 = new FlatField(ftype2, set2);
    field2.setSamples(v2);
    dpys[0].addMap(new ScalarMap(duh, Display.RGB));

    ScalarMap map1color = new ScalarMap(wr, Display.RGBA);
    dpys[0].addMap(map1color);

    ColorAlphaControl control = (ColorAlphaControl) map1color.getControl();
    control.setTable(buildTable(control.getTable()));

    DataReferenceImpl ref_grid3d = new DataReferenceImpl("ref_grid3d");
    ref_grid3d.setData(grid3d);

    DataReferenceImpl ref2 = new DataReferenceImpl("ref2");
    ref2.setData(field2);

    ConstantMap[] cmaps = {new ConstantMap(0.0, Display.TextureEnable)};
    dpys[0].addReference(ref2, cmaps);

    dpys[0].addReference(ref_grid3d, null);
  }
Exemple #26
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  /**
   * Find pre-determined contouring values for this parameter by name from the paramdefaults.xml
   * file, or compute reasonable values of contouring values from the data itself. min no contour
   * line below this value; base a contour line must have this value (even if not seen), other
   * values are this value +/- some multiple of the interval; max no contour with greater value than
   * this; interval if negative, means show dashed lines below base value.
   *
   * @param paramName variable name from the data source
   * @param rangeType one of them ViaAD RealType thingys for the data
   * @param displayUnit the unit the data will appear on screen
   * @param range The range
   * @param contourInfo Default contour info
   * @return a ContourInfo object with appropriate contouring values
   */
  public ContourInfo findContourInfo(
      String paramName,
      RealType rangeType,
      Unit displayUnit,
      Range range,
      ContourInfo contourInfo) {

    // make an empty ContourInfo object
    if (contourInfo == null) {
      contourInfo = new ContourInfo(Double.NaN, Double.NaN, Double.NaN, Double.NaN);
    }

    // Find pre-determined contour values for this parameter name
    ContourInfo dflt = getParamDefaultsEditor().getParamContourInfo(paramName);

    if (dflt != null) {
      // Set pre-determined values into local data "contourInfo"
      // System.out.println("  DC: findContourInfo got params contouring values "+ dflt.toString()
      // );
      contourInfo.setIfDefined(dflt);
    }

    if (contourInfo.isDefined()) {
      return contourInfo;
    }

    float min = 0.0f;
    float max = 1100.0f;

    float clBase = Float.NaN;
    float clInterval = Float.NaN;
    float clMin = Float.NaN;
    float clMax = Float.NaN;

    try {
      // convert data's max/min values from native units to display units
      // as seen by user in plots; use VisAD methods
      if (Unit.canConvert(rangeType.getDefaultUnit(), displayUnit)) {
        Real dispVal = new Real(rangeType, range.min);
        min = (float) dispVal.getValue(displayUnit);
        dispVal = new Real(rangeType, range.max);
        max = (float) dispVal.getValue(displayUnit);
      } else {
        min = (float) range.min;
        max = (float) range.max;
      }

      // use data max and min values in display units to find appropriate
      // workable values for contour interval, base, min, and max.

      double span = Math.abs(max - min);

      // GEMPAK alogrithm for 5 to 10 contours in a field from grcval.f
      int scale = (int) (Math.log(span) / Math.log(10));
      if (span < 1) {
        scale = scale - 1;
      }
      double cscale = Math.pow(10, scale);
      double crange = span / cscale;
      int nrange = (int) crange;
      double rint = (nrange + 1) * .1 * cscale;
      if (Double.isInfinite(rint)) {
        rint = span;
      }

      if ((span <= 300.0) && (span > 5.0)) {
          /* typical case */
        clInterval = (float) rint;
        clMin = clBase = clInterval * ((int) (min / clInterval));
        clMax = clInterval * (1 + (int) (max / clInterval));
      } else if (span <= 5.0) { // for max-min less than 5
        clInterval = (float) rint;
        clMin = clBase = min;
        clMax = max;
      } else { // for really big ranges, span > 300 make ints
        clInterval = (float) ((int) rint);
        clMin = clBase = (float) ((int) min);
        clMax = (float) ((int) max);
      }
      clMax = clMax + clInterval;
      clMin = clMin - clInterval;

    } catch (Exception exp) {
      logException("Set contour levels for " + paramName, exp);
    }

    // this should never be true; must be a leftover
    if (clInterval == 0.0f) {
      // System.out.println("  DC: findContourInfo got default contour interval of 20.0");
      clInterval = 20.0f;
    }

    // IF any contouring values were not supplied by the parameter-name-based
    // information; then load in the computed values made here.

    if (!contourInfo.getIntervalDefined() && (contourInfo.getLevelsString() == null)) {
      contourInfo.setInterval(clInterval);
    }

    if (!contourInfo.getBaseDefined()) {
      contourInfo.setBase(clBase);
    }

    if (!contourInfo.getMinDefined()) {
      contourInfo.setMin(clMin);
    }

    if (!contourInfo.getMaxDefined()) {
      contourInfo.setMax(clMax);
    }

    return contourInfo;
  }
Exemple #27
0
  /** 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;
    }
  }