/**
* Returns the hash code for this ScalarMap. If <code>scalarMap1.equals(
* scalarMap2)</code> is true, then <code>scalarMap1.hashCode() ==
* scalarMap2.hashCode()</code>.
*
* @return The hash code for this ScalarMap.
*/
public int hashCode() {
ScalarType s = getScalar();
DisplayRealType ds = getDisplayScalar();
int hash = 0;
if (s != null) {
if (ds != null) {
hash = s.hashCode() ^ ds.hashCode();
} else {
hash = s.hashCode();
}
} else if (ds != null) {
hash = ds.hashCode();
}
return hash;
}
/**
* Change underscore characters (_) in the Scalar name to blanks. Can be used to change the
* displayed scalar name on the axis.
*
* @param u2b true to change, false to change back
* @see #setScalarName as an alternative
*/
public void setUnderscoreToBlank(boolean u2b) {
underscore_to_blank = u2b;
if (Scalar != null) {
scalarName = Scalar.getName();
if (underscore_to_blank) {
scalarName = scalarName.replace('_', ' ');
}
// set the label on the scale as well. DRM 17-Nov-2000
if (axisScale != null) axisScale.setTitle(scalarName);
}
}
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);
}
}
/**
* Returns a string representation of the ScalarMap with the specified prefix prepended.
*
* @param pre prefix to prepend to the representation
* @return a string that "textually represents" this ScalarMap with <CODE>pre</CODE> prepended.
*/
public String toString(String pre) {
return pre + "ScalarMap: " + Scalar.toString() + " -> " + DisplayScalar.toString() + "\n";
}
