/**
* Get the Minimum Y value of all attached DataSets.
*
* @return The minimum value
*/
public double getYmin() {
DataSet d;
double min = 0.0;
if (dataset == null | dataset.isEmpty()) return min;
for (int i = 0; i < dataset.size(); i++) {
d = ((DataSet) dataset.elementAt(i));
if (i == 0) min = d.getYmin();
else min = Math.min(min, d.getYmin());
}
return min;
}
/**
* Load and Attach a DataSet from an array. The method loads the data into a DataSet class and
* attaches the class to the graph for plotting.
*
* <p>The data is assumed to be stored in the form x,y,x,y,x,y.... A local copy of the data is
* made.
*
* @param data The data to be loaded in the form x,y,x,y,...
* @param n The number of (x,y) data points. This means that the minimum length of the data array
* is 2*n.
* @return The DataSet constructed containing the data read.
*/
public DataSet loadDataSet(double data[], int n) {
DataSet d;
try {
d = new DataSet(data, n);
dataset.addElement(d);
d.g2d = this;
} catch (Exception e) {
System.out.println("Failed to load Data set ");
e.printStackTrace();
return null;
}
return d;
}
/**
* Get the Maximum Y value of all attached DataSets.
*
* @return The maximum value
*/
public double getYmax() {
DataSet d;
double max = 0.0;
if (dataset == null | dataset.isEmpty()) return max;
for (int i = 0; i < dataset.size(); i++) {
d = ((DataSet) dataset.elementAt(i));
if (i == 0) max = d.getYmax();
else max = Math.max(max, d.getYmax());
}
return max;
}
/**
* Attach a DataSet to the graph. By attaching the data set the class can draw the data through
* its paint method.
*/
public void attachDataSet(DataSet d) {
if (d != null) {
dataset.addElement(d);
d.g2d = this;
}
}
/**
* Define a Vector legend in the graph window
*
* @param x data position of the legend.
* @param y data position of the legend.
* @param text text to display in the legend
*/
public void legend(double x, double y, String text) {
super.legend(x, y, text);
drawlegend = true;
}
/**
* Define a Vector legend in the graph window
*
* @param x pixel position of the legend.
* @param y pixel position of the legend.
* @param text text to display in the legend
*/
public void legend(int x, int y, String text) {
super.legend(x, y, text);
drawlegend = true;
}
/**
* Define a Vector legend in the graph window. The legend will be placed above the data window in
* the center
*
* @param text text to display in the legend
*/
public void legend(String text) {
super.legend(-1, -1, text);
drawlegend = true;
}
/**
* Draw a Vector legend in the graph window. The legend will be placed above the data window in
* the center
*/
public void legend() {
super.legend(-1, -1, null);
drawlegend = true;
}