/**
* Set color of axis scales; color must be float[3] with red,
* green and blue components; DisplayScalar must be XAxis,
* YAxis or ZAxis. Preferred method is to use <CODE>AxisScale.setColor<CODE>
* methods.
* @param color array of R,G,B values of color.
* @throws VisADException non-spatial DisplayScalar or wrong length
* of color array
* @see #getAxisScale()
* @see visad.AxisScale#setColor(Color color)
* @see visad.AxisScale#setColor(float[] color)
*/
public void setScaleColor(float[] color) throws VisADException {
if (!DisplayScalar.equals(Display.XAxis)
&& !DisplayScalar.equals(Display.YAxis)
&& !DisplayScalar.equals(Display.ZAxis)) {
throw new DisplayException(
"ScalarMap.setScaleColor: DisplayScalar " + "must be XAxis, YAxis or ZAxis");
}
if (color == null || color.length != 3) {
throw new DisplayException("ScalarMap.setScaleColor: color is " + "null or wrong length");
}
// DRM 10-Oct 2000
axisScale.setColor(color);
}
/**
* set aspect ratio of XAxis, YAxis & ZAxis in ScalarMaps rather than matrix (i.e., don't distort
* text fonts); won't work for spherical, polar, cylindrical coordinates
*
* @param aspect ratios; 3 elements for Java3D, 2 for Java2D
* @throws VisADException a VisAD error occurred
* @throws RemoteException an RMI error occurred
*/
void setAspectCartesian(double[] aspect) throws VisADException, RemoteException {
double asp = Double.NaN;
if (DisplayScalar.equals(Display.XAxis)) asp = aspect[0];
if (DisplayScalar.equals(Display.YAxis)) asp = aspect[1];
if (DisplayScalar.equals(Display.ZAxis)) asp = aspect[2];
if (asp == asp) {
isScaled = DisplayScalar.getRange(displayRange);
displayRange[0] *= asp;
displayRange[1] *= asp;
computeScaleAndOffset();
makeScale();
// needs work in AxisScale ****
}
// note XAxis, YAxis and ZAxis have no unit, so cannot be setRangeByUnits()
}
ScalarMap(ScalarType scalar, DisplayRealType display_scalar, boolean needNonNullScalar)
throws VisADException {
if (scalar == null && needNonNullScalar) {
throw new DisplayException("ScalarMap: scalar is null");
}
if (display_scalar == null) {
throw new DisplayException("ScalarMap: display_scalar is null");
}
if (display_scalar.equals(Display.List)) {
throw new DisplayException("ScalarMap: display_scalar may not be List");
}
boolean text = display_scalar.getText();
if (scalar != null) {
/* WLH 15 June 2000
if (text && !(scalar instanceof TextType)) {
throw new DisplayException("ScalarMap: RealType scalar cannot be " +
"used with TextType display_scalar");
}
*/
if (!text && !(scalar instanceof RealType)) {
throw new DisplayException(
"ScalarMap: TextType scalar cannot be " + "used with RealType display_scalar");
}
}
control = null;
Scalar = scalar;
DisplayScalar = display_scalar;
display = null;
ScalarIndex = -1;
DisplayScalarIndex = -1;
isScaled = DisplayScalar.getRange(displayRange);
isManual = false;
dataRange[0] = Double.NaN;
dataRange[1] = Double.NaN;
defaultUnitRange[0] = dataRange[0];
defaultUnitRange[1] = dataRange[1];
OldTick = Long.MIN_VALUE;
NewTick = Long.MIN_VALUE + 1;
tickFlag = false;
if (Scalar != null) scalarName = Scalar.getName();
if (DisplayScalar.equals(Display.XAxis)
|| DisplayScalar.equals(Display.YAxis)
|| DisplayScalar.equals(Display.ZAxis)) {
axisScale = new AxisScale(this);
}
}
/**
* explicitly set the range of data (RealType) values; used for linear map from Scalar to
* DisplayScalar values; if neither this nor setRangeByUnits is invoked, then the range will be
* computed from the initial values of Data objects linked to the Display by autoscaling logic; if
* the range of data values is (0.0, 1.0), for example, this method may be invoked with low = 1.0
* and hi = 0.0 to invert the display scale .
*
* @param low lower range value (see notes above)
* @param hi upper range value (see notes above)
* @param remoteId id of remote scale
* @throws VisADException VisAD error
* @throws RemoteException Java RMI error
*/
public void setRange(double low, double hi, int remoteId) throws VisADException, RemoteException {
if (DisplayScalar.equals(Display.Animation)) {
System.err.println("Warning: setRange on " + "ScalarMap to Display.Animation has no effect.");
return;
}
isManual = true;
setRange(null, low, hi, false, remoteId);
if (scale == scale && offset == offset) {
incTick(); // did work, so wake up Display
} else {
isManual = false; // didn't work, so don't lock out auto-scaling
}
}
public boolean badRange() {
// WLH 15 Feb 2002
boolean bad = (isScaled && (scale != scale || offset != offset));
if (DisplayScalar.equals(Display.Animation)) {
if (control != null) {
Set set = ((AnimationControl) control).getSet();
bad |= (set == null);
} else {
bad = true;
}
}
return bad;
// return (isScaled && (scale != scale || offset != offset));
}
// WLH 22 August 2001
public boolean doInitialize() {
if (DisplayScalar.equals(Display.IsoContour)) {
if (control != null) {
float[] lowhibase = new float[3];
boolean[] dashes = new boolean[1];
float[] levs = ((ContourControl) control).getLevels(lowhibase, dashes);
return (levs == null);
} else {
return false;
}
} else {
return isScaled && !isManual;
}
}
/** 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);
}
}
}
