/**
* Looks for the element of the given abscissa and sets its value to ordiante. If there is no
* points existing with the given abcisssa, adds a point (abscissa, ordinate) to the signal.
* (actually, this method does the exact same thing as addElement).
*
* @param abscissa abscissa of the considered point
* @param ordinate value to add or update in the signal
*/
public void setElement(double abscissa, double ordinate) {
int index = data.indexOf(abscissa);
if (index < 0) {
data.add(abscissa, ordinate);
} else {
data.updateByIndex(index, ordinate);
}
}
/**
* Returns <code>true</code> if all the y-values for the specified x-value are <code>null</code>
* and <code>false</code> otherwise.
*
* @param x the x-value.
* @return A boolean.
*/
protected boolean canPrune(Number x) {
for (int s = 0; s < this.data.size(); s++) {
XYSeries series = (XYSeries) this.data.get(s);
if (series.getY(series.indexOf(x)) != null) {
return false;
}
}
return true;
}
/**
* Returns the value (the ordianate) of a point given its abscissa.
*
* @param abscissa abscissa of the considered point
* @return return the value of the considered point (returns -1 if there is no points with the
* given abscissa in the signal).
*/
public double getValueOfAbscissa(double abscissa) {
int isInSeries = data.indexOf(abscissa);
if (isInSeries >= 0) {
return data.getY(isInSeries).doubleValue();
} else {
System.out.println("There is no point whith the abscissa " + abscissa + " in the signal.\n");
return -1;
}
}
/**
* Returns the index of a point (abscissa, value) in the signal. Returns -1 if there is no point
* of the given abscissa in the signal.
*
* @param abscissa abscissa of the point to look for
* @return the index in the signal if such a point exists, -1 otherwise.
*/
public int indexOf(double abscissa) {
return data.indexOf(abscissa);
}
/**
* Check if a point of abscissa abscissa is already in the signal
*
* @param abscissa abscissa of the point (abscissa, value) to look for
* @return true if there exists a point of the given abscissa in the signal, false otherwise
*/
public boolean isInSeries(double abscissa) {
return (data.indexOf(abscissa) > 0);
}