Package org.jfree.data

Interface XYZDataset

All Superinterfaces:

Dataset, SeriesDataset, XYDataset

All Known Subinterfaces:

ContourDataset, IntervalXYZDataset

All Known Implementing Classes:

AbstractXYZDataset, DefaultContourDataset, MatrixSeriesCollection, NonGridContourDataset, SampleXYZDataset

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

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

Methods inherited from interface org.jfree.data.Dataset

addChangeListener, getGroup, removeChangeListener, setGroup

Methods inherited from interface org.jfree.data.SeriesDataset

getSeriesCount, getSeriesName

Methods inherited from interface org.jfree.data.XYDataset

getItemCount, getX, getXValue, getY, getYValue

Method Details

getZValue

Number getZValue(int series,
int item)

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

Parameters:

series - the series (zero-based index).

item - the item (zero-based index).

Returns:

The z-value (possibly null).

getZ

double getZ(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.