/** 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); }
/** 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); }
/** * 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); }