/**
* 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 display Unit to override default Unit of Scalar; MUST be called before any data are
* displayed
*
* @param unit unit that data will be displayed with
* @throws VisADException <CODE>unit</CODE> is not convertable with the default unit or scalar is
* not a RealType.
*/
public void setOverrideUnit(Unit unit) throws VisADException {
if (!(Scalar instanceof RealType)) {
throw new UnitException("Scalar is not RealType");
}
Unit rtunit = ((RealType) Scalar).getDefaultUnit();
if (!Unit.canConvert(unit, rtunit)) {
throw new UnitException("unit not convertable with RealType default");
}
if (unit != null) {
overrideUnit = unit;
override_offset = overrideUnit.toThis(0.0, rtunit);
override_scale = overrideUnit.toThis(1.0, rtunit) - override_offset;
}
}
/** set range used for linear map from Scalar to DisplayScalar values */
private synchronized void setRange(
DataShadow shadow, double low, double hi, boolean unit_flag, int remoteId)
throws VisADException, RemoteException {
int i = ScalarIndex;
if (shadow != null) {
// WLH - 23 Sept 99
if (DisplayScalar.equals(Display.Latitude) || DisplayScalar.equals(Display.Longitude)) {
Unit data_unit = (Scalar instanceof RealType) ? ((RealType) Scalar).getDefaultUnit() : null;
Unit display_unit = DisplayScalar.getDefaultUnit();
if (data_unit != null && display_unit != null && Unit.canConvert(data_unit, display_unit)) {
dataRange[0] = data_unit.toThis(displayRange[0], display_unit);
dataRange[1] = data_unit.toThis(displayRange[1], display_unit);
} else {
if (i < 0 || i >= shadow.ranges[0].length) return;
dataRange[0] = shadow.ranges[0][i];
dataRange[1] = shadow.ranges[1][i];
}
} else {
if (i < 0 || i >= shadow.ranges[0].length) return;
dataRange[0] = shadow.ranges[0][i];
dataRange[1] = shadow.ranges[1][i];
}
} else if (unit_flag) {
Unit data_unit = (Scalar instanceof RealType) ? ((RealType) Scalar).getDefaultUnit() : null;
Unit display_unit = DisplayScalar.getDefaultUnit();
if (data_unit == null || display_unit == null) {
throw new UnitException("ScalarMap.setRangeByUnits: null Unit");
}
dataRange[0] = data_unit.toThis(displayRange[0], display_unit);
dataRange[1] = data_unit.toThis(displayRange[1], display_unit);
/*
System.out.println("data_unit = " + data_unit + " display_unit = " + display_unit);
System.out.println("dataRange = " + dataRange[0] + " " + dataRange[1] +
" displayRange = " + displayRange[0] + " " + displayRange[1]);
*/
} else {
dataRange[0] = low;
dataRange[1] = hi;
// WLH 31 Aug 2000
// manual range is in overrideUnit. so convert to Scalar default Unit
if (overrideUnit != null) {
dataRange[0] = (dataRange[0] - override_offset) / override_scale;
dataRange[1] = (dataRange[1] - override_offset) / override_scale;
}
}
/*
if (shadow != null || remoteId != VisADEvent.LOCAL_SOURCE) {
System.out.println(Scalar + " -> " + DisplayScalar + " range: " + dataRange[0] +
" to " + dataRange[1] + " " + display.getName());
}
*/
// at this point dataRange is range for Scalar default Unit
// even if (overrideUnit != null)
// DRM 17 Feb 2006 - so set the defaultUnitRange to be these values.
defaultUnitRange[0] = dataRange[0];
defaultUnitRange[1] = dataRange[1];
if (defaultUnitRange[0] == defaultUnitRange[1]) {
double half = defaultUnitRange[0] / 2000.0;
if (half < 0.5) half = 0.5;
defaultUnitRange[0] -= half;
defaultUnitRange[1] += half;
}
if (isScaled) {
computeScaleAndOffset();
} else { // if (!isScaled)
if (dataRange[0] == Double.MAX_VALUE || dataRange[1] == -Double.MAX_VALUE) {
dataRange[0] = Double.NaN;
dataRange[1] = Double.NaN;
}
// WLH 31 Aug 2000
if (overrideUnit != null) {
// now convert dataRange to overrideUnit
dataRange[0] = defaultUnitRange[0] * override_scale + override_offset;
dataRange[1] = defaultUnitRange[1] * override_scale + override_offset;
}
}
/*
System.out.println(Scalar + " -> " + DisplayScalar + " range: " + dataRange[0] +
" to " + dataRange[1] + " scale: " + scale + " " + offset);
*/
if (DisplayScalar.equals(Display.Animation) && shadow != null) {
if (control != null && ((AnimationControl) control).getComputeSet()) {
Set set = shadow.animationSampling;
/* DRM: 04 Jan 2003
if (set == null) {
return;
}
*/
((AnimationControl) control).setSet(set, true);
}
} else if (DisplayScalar.equals(Display.IsoContour)) {
if (control != null) {
// WLH 10 July 2002
// don't set if application has called control.setLevels()
float[] lowhibase = new float[3];
boolean[] dashes = new boolean[1];
boolean public_set = ((ContourControl) control).getPublicSet();
if (!public_set) {
boolean[] bvalues = new boolean[2];
float[] values = new float[5];
((ContourControl) control).getMainContours(bvalues, values);
if (shadow == null) {
// don't set surface value for auto-scale
values[0] = (float) dataRange[0]; // surfaceValue
}
// CTR: 29 Jul 1999: interval should never be zero
float f = (float) (dataRange[1] - dataRange[0]) / 10.0f;
if (f != 0.0f) values[1] = f; // contourInterval
values[2] = (float) dataRange[0]; // lowLimit
values[3] = (float) dataRange[1]; // hiLimit
values[4] = (float) dataRange[0]; // base
((ContourControl) control).setMainContours(bvalues, values, true, true);
}
}
} else if (DisplayScalar.equals(Display.XAxis)
|| DisplayScalar.equals(Display.YAxis)
|| DisplayScalar.equals(Display.ZAxis)) {
if (dataRange[0] != Double.MAX_VALUE
&& dataRange[1] != -Double.MAX_VALUE
&& dataRange[0] == dataRange[0]
&& dataRange[1] == dataRange[1]
&& dataRange[0] != dataRange[1]
&& scale == scale
&& offset == offset) {
if (display != null) {
makeScale();
} else {
scale_flag = true;
}
back_scale_flag = true;
}
}
if (dataRange[0] == dataRange[0] && dataRange[1] == dataRange[1] && ListenerVector != null) {
ScalarMapEvent evt;
evt =
new ScalarMapEvent(
this, (shadow == null ? ScalarMapEvent.MANUAL : ScalarMapEvent.AUTO_SCALE), remoteId);
Vector listeners_clone = null;
synchronized (ListenerVector) {
listeners_clone = (Vector) ListenerVector.clone();
}
Enumeration listeners = listeners_clone.elements();
while (listeners.hasMoreElements()) {
ScalarMapListener listener = (ScalarMapListener) listeners.nextElement();
listener.mapChanged(evt);
}
}
}