org.jfree.data.xy
Interface XYZDataset

All Superinterfaces:

Dataset, SeriesDataset, XYDataset

All Known Subinterfaces:

ContourDataset, IntervalXYZDataset

All Known Implementing Classes:

AbstractXYZDataset, DefaultContourDataset, DefaultXYZDataset, MatrixSeriesCollection, NonGridContourDataset

public interface XYZDataset
extends XYDataset

The interface through which JFreeChart obtains data in the form of (x, y, z) items - used for XY and XYZ plots.

Method Summary

java.lang.Number	getZ(int series, int item) Returns the z-value for the specified series and item.
double	getZValue(int series, int item) Returns the z-value (as a double primitive) for an item within a series.

Methods inherited from interface org.jfree.data.xy.XYDataset

getDomainOrder, getItemCount, getX, getXValue, getY, getYValue

Methods inherited from interface org.jfree.data.general.SeriesDataset

getSeriesCount, getSeriesKey, indexOf

Methods inherited from interface org.jfree.data.general.Dataset

addChangeListener, getGroup, removeChangeListener, setGroup

Method Detail

getZ

java.lang.Number getZ(int series,
                      int item)

Returns the z-value for the specified series and item.

Parameters:

series - the series index (zero-based).

item - the item index (zero-based).

Returns:

The z-value (possibly null).

getZValue

double getZValue(int series,
                 int item)

Returns the z-value (as a double primitive) for an item within a series.

Parameters:

series - the series (zero-based index).

item - the item (zero-based index).

Returns:

The z-value.