Package 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.

Method Summary

Modifier and Type	Method	Description
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.general.Dataset

addChangeListener, getGroup, removeChangeListener, setGroup

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

getSeriesCount, getSeriesKey, indexOf

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

getDomainOrder, getItemCount, getX, getXValue, getY, getYValue

Method Details

getVectorXValue

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

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

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).