org.jfree.data.xy
Interface VectorXYDataset

All Superinterfaces:

Dataset, SeriesDataset, XYDataset

All Known Implementing Classes:

VectorSeriesCollection

public interface VectorXYDataset

extends XYDataset

An extension of the XYDataset interface that allows a vector to be defined at a specific (x, y) location.

Since:

1.0.6

Method Summary

Vector	getVector(int series, int item) Returns the vector for an item in a series.
double	getVectorXValue(int series, int item) Returns the x-component of the vector for an item in a series.
double	getVectorYValue(int series, int item) Returns the y-component of the vector for an item in 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

getVectorXValue

public double getVectorXValue(int series,
                              int item)

Returns the x-component of the vector for an item in a series.

Parameters:

series - the series index.

item - the item index.

Returns:

The x-component of the vector.

getVectorYValue

public double getVectorYValue(int series,
                              int item)

Returns the y-component of the vector for an item in a series.

Parameters:

series - the series index.

item - the item index.

Returns:

The y-component of the vector.

getVector

public Vector getVector(int series,
                        int item)

Returns the vector for an item in a series. Depending on the particular dataset implementation, this may involve creating a new Vector instance --- if you are just interested in the x and y components, use the getVectorXValue(int, int) and getVectorYValue(int, int) methods instead.

Parameters:

series - the series index.

item - the item index.

Returns:

The vector (possibly null).