com.jjoe64.graphview.series

Interface Series<E extends DataPointInterface>

All Known Implementing Classes:

BarGraphSeries, BaseSeries, LineGraphSeries, PointsGraphSeries

public interface Series<E extends DataPointInterface>

Basis interface for series that can be plotted on the graph. You can implement this in order to create a completely custom series type. But it is recommended to extend BaseSeries or another implemented Series class to save time. Anyway this interface can make sense if you want to implement a custom data provider, because BaseSeries uses a internal Array to store the data.

Method Summary

Modifier and Type	Method and Description
void	clearReference(GraphView graphView) clear reference to view and activity
void	draw(GraphView graphView, Canvas canvas, boolean isSecondScale) Plots the series to the viewport.
int	getColor()
double	getHighestValueX()
double	getHighestValueY()
double	getLowestValueX()
double	getLowestValueY()
java.lang.String	getTitle()
java.util.Iterator<E>	getValues(double from, double until) get the values for a specific range.
boolean	isEmpty()
void	onGraphViewAttached(GraphView graphView) called when the series was added to a graph
void	onTap(float x, float y) called by the tap detector in order to trigger the on tap on datapoint event.
void	setOnDataPointTapListener(OnDataPointTapListener l) set a listener for tap on a data point.

Method Detail

getLowestValueX

double getLowestValueX()

Returns:

the lowest x-value of the data

getHighestValueX

double getHighestValueX()

Returns:

the highest x-value of the data

getLowestValueY

double getLowestValueY()

Returns:

the lowest y-value of the data

getHighestValueY

double getHighestValueY()

Returns:

the highest y-value of the data

getValues

java.util.Iterator<E> getValues(double from,
                                double until)

get the values for a specific range. It is important that the data comes in the sorted order (from lowest to highest x-value).

Parameters:

from - the minimal x-value

until - the maximal x-value

Returns:

all datapoints between the from and until x-value including the from and until data points.

draw

void draw(GraphView graphView,
          Canvas canvas,
          boolean isSecondScale)

Plots the series to the viewport. You have to care about overdrawing. This method may be called 2 times: one for the default scale and one time for the second scale.

Parameters:

graphView - corresponding graphview

canvas - canvas to draw on

isSecondScale - true if the drawing is for the second scale

getTitle

java.lang.String getTitle()

Returns:

the title of the series. Used in the legend

getColor

int getColor()

Returns:

the color of the series. Used in the legend and should be used for the plotted points or lines.

setOnDataPointTapListener

void setOnDataPointTapListener(OnDataPointTapListener l)

set a listener for tap on a data point.

Parameters:

l - listener

onTap

void onTap(float x,
           float y)

called by the tap detector in order to trigger the on tap on datapoint event.

Parameters:

x - pixel

y - pixel

onGraphViewAttached

void onGraphViewAttached(GraphView graphView)

called when the series was added to a graph

Parameters:

graphView - graphview

isEmpty

boolean isEmpty()

Returns:

whether there are data points

clearReference

void clearReference(GraphView graphView)

clear reference to view and activity

Parameters:

graphView -