/**
* Creates the Control for the associated DisplayScalar. This method invokes the method {@link
* ScalarMapListener#controlChanged(ScalarMapControlEvent)} on all registered {@link
* ScalarMapListener}s with this instance as the event source and {@link
* ScalarMapEvent#CONTROL_ADDED} or {@link ScalarMapEvent#CONTROL_REPLACED} as the event ID --
* depending on whether this is the first control or not. The event control is the previous
* control if the event ID is {@link ScalarMapEvent#CONTROL_REPLACED}. If the event ID is {@link
* ScalarMapEvent#CONTROL_ADDED}, then the event control is the created control or <code>null
* </code> -- depending on whether or not the control was successfully created.
*
* @throws RemoteException Java RMI failure
* @throws VisADException VisAD failure
*/
synchronized void setControl() throws VisADException, RemoteException {
int evtID;
Control evtCtl;
if (control != null) {
evtID = ScalarMapEvent.CONTROL_REPLACED;
evtCtl = control;
} else {
evtID = ScalarMapEvent.CONTROL_ADDED;
evtCtl = null;
}
if (display == null) {
throw new DisplayException("ScalarMap.setControl: not part of " + "any Display");
}
control = display.getDisplayRenderer().makeControl(this);
if (control != null) {
display.addControl(control);
if (evtCtl == null) {
evtCtl = control;
}
}
if (control != null || evtCtl != null) {
notifyCtlListeners(new ScalarMapControlEvent(this, evtID, evtCtl));
}
}
/**
* Set <CODE>Vector</CODE> of <CODE>String</CODE>s describing the cursor location from the cursor
* location; this is invoked when the cursor location changes or the cursor display status changes
*/
public void setCursorStringVector() {
synchronized (cursorStringVector) {
cursorStringVector.removeAllElements();
float[][] cursor = new float[3][1];
double[] cur = getCursor();
cursor[0][0] = (float) cur[0];
cursor[1][0] = (float) cur[1];
cursor[2][0] = (float) cur[2];
Enumeration maps = display.getMapVector().elements();
while (maps.hasMoreElements()) {
try {
ScalarMap map = (ScalarMap) maps.nextElement();
DisplayRealType dreal = map.getDisplayScalar();
DisplayTupleType tuple = dreal.getTuple();
int index = dreal.getTupleIndex();
if (tuple != null
&& (tuple.equals(Display.DisplaySpatialCartesianTuple)
|| (tuple.getCoordinateSystem() != null
&& tuple
.getCoordinateSystem()
.getReference()
.equals(Display.DisplaySpatialCartesianTuple)))) {
float[] fval = new float[1];
if (tuple.equals(Display.DisplaySpatialCartesianTuple)) {
fval[0] = cursor[index][0];
} else {
float[][] new_cursor = tuple.getCoordinateSystem().fromReference(cursor);
fval[0] = new_cursor[index][0];
}
float[] dval = map.inverseScaleValues(fval);
RealType real = (RealType) map.getScalar();
// WLH 31 Aug 2000
Real r = new Real(real, dval[0]);
Unit overrideUnit = map.getOverrideUnit();
Unit rtunit = real.getDefaultUnit();
// units not part of Time string
// DRM 2003-08-19: don't check for equality since toString
// may be different
if (overrideUnit != null
&& // !overrideUnit.equals(rtunit) &&
(!Unit.canConvert(rtunit, CommonUnit.secondsSinceTheEpoch)
|| rtunit.getAbsoluteUnit().equals(rtunit))) {
dval[0] = (float) overrideUnit.toThis((double) dval[0], rtunit);
r = new Real(real, dval[0], overrideUnit);
}
String valueString = r.toValueString();
// WLH 27 Oct 2000
String s = map.getScalarName() + " = " + valueString;
// String s = real.getName() + " = " + valueString;
cursorStringVector.addElement(s);
} // end if (tuple != null && ...)
} catch (VisADException e) {
}
} // end while(maps.hasMoreElements())
} // end synchronized (cursorStringVector)
render_trigger();
}
/**
* Set the DisplayImpl this ScalarMap is linked to
*
* @param d display to link to
* @throws VisADException map is already linked to a DisplayImpl or other VisAD error
*/
synchronized void setDisplay(DisplayImpl d) throws VisADException {
if (d.equals(display)) return;
if (display != null) {
throw new DisplayException(
"ScalarMap.setDisplay: ScalarMap cannot belong" + " to two Displays");
}
display = d;
if (scale_flag) makeScale();
// System.out.println("setDisplay " + Scalar + " -> " + DisplayScalar);
// WLH 27 Nov 2000
if (!(this instanceof ConstantMap)) {
ProjectionControl pcontrol = display.getProjectionControl();
try {
setAspectCartesian(pcontrol.getAspectCartesian());
} catch (RemoteException e) {
}
}
}
/**
* Set the <I>wait flag</I> to the specified value. (When the <I>wait flag</I> is enabled, the
* user is informed that the application is busy, typically by displaying a <B><TT>Please wait . .
* .</TT></B> message at the bottom of the <CODE>Display</CODE>.) DisplayEvent.WAIT_ON and
* DisplayEvent.WAIT_OFF events are fired based on value of b.
*
* @param b Boolean value to which <I>wait flag</I> is set.
*/
public void setWaitFlag(boolean b) {
waitFlag = b;
try {
DisplayEvent e =
new DisplayEvent(display, (b == true) ? DisplayEvent.WAIT_ON : DisplayEvent.WAIT_OFF);
display.notifyListeners(e);
} catch (VisADException e) {
} catch (RemoteException e) {
}
}
/** invoke incTick on every application call to setRange */
public long incTick() {
// WLH 19 Feb 2001 - move to after increment NewTick
// if (display != null) display.controlChanged();
NewTick += 1;
if (NewTick == Long.MAX_VALUE) NewTick = Long.MIN_VALUE + 1;
/*
System.out.println(Scalar + " -> " + DisplayScalar +
" incTick = " + NewTick);
*/
if (display != null) display.controlChanged();
return NewTick;
}
/**
* Specify <CODE>DisplayImpl</CODE> to be rendered.
*
* @param d <CODE>Display</CODE> to render.
* @exception VisADException If a <CODE>DisplayImpl</CODE> has already been specified.
*/
public void setDisplay(DisplayImpl d) throws VisADException {
if (display != null) {
throw new DisplayException("DisplayRenderer.setDisplay: " + "display already set");
}
display = d;
// reinitialize rendererControl
if (rendererControl == null) {
rendererControl = new RendererControl(display);
initControl(rendererControl);
} else {
RendererControl rc = new RendererControl(display);
rc.syncControl(rendererControl);
rendererControl = rc;
}
rendererControl.addControlListener(this);
display.addControl(rendererControl);
}
/**
* Create the scale that is displayed. This is called automatically when <CODE>setRange(lo, hi)
* </CODE> and <CODE>setDisplay</CODE> are called. It makes a call to <CODE>AxisScale.makeScale()
* </CODE> where the actual hard work is done.
*
* @throws VisADException VisAD error.
*/
public void makeScale() throws VisADException {
if (axisScale != null) {
DisplayRenderer displayRenderer = null;
if (display == null) return;
displayRenderer = display.getDisplayRenderer();
if (displayRenderer == null) return;
boolean scaleMade = axisScale.makeScale();
if (scaleMade) {
// displayRenderer.setScale(axis, axis_ordinal, array, scale_color);
if (scale_on) {
displayRenderer.setScale(axisScale);
} else {
displayRenderer.clearScale(axisScale);
}
scale_flag = false;
}
}
}
/** 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);
}
/**
* Returns the dimensionality of the display.
*
* @return The dimensionality of the display (either 2 or 3).
*/
public int getDimensionality() {
return display.getDisplayRenderer().getMode2D() ? 2 : 3;
}
/**
* Returns the AWT component.
*
* @return The AWT component.
*/
public Component getComponent() {
return display.getComponent();
}