com.github.mikephil.charting.buffer

Class AbstractBuffer<T>

java.lang.Object

com.github.mikephil.charting.buffer.AbstractBuffer<T>

Type Parameters:

T - The data the buffer accepts to be fed with.

Direct Known Subclasses:

BarBuffer, ScatterBuffer

public abstract class AbstractBuffer<T>
extends java.lang.Object

Buffer class to boost performance while drawing. Concept: Replace instead of recreate.

Field Summary

Fields

Modifier and Type	Field and Description
float[]	buffer float-buffer that holds the data points to draw, order: x,y,x,y,...
protected int	index index in the buffer
protected int	mFrom indicates from which x-index the visible data begins
protected int	mTo indicates to which x-index the visible data ranges
protected float	phaseX animation phase x-axis
protected float	phaseY animation phase y-axis

Constructor Summary

Constructors

Constructor and Description
AbstractBuffer(int size) Initialization with buffer-size.

Method Summary

Methods

Modifier and Type	Method and Description
abstract void	feed(T data) Builds up the buffer with the provided data and resets the buffer-index after feed-completion.
void	limitFrom(int from) limits the drawing on the x-axis
void	limitTo(int to) limits the drawing on the x-axis
void	reset() Resets the buffer index to 0 and makes the buffer reusable.
void	setPhases(float phaseX, float phaseY) Set the phases used for animations.
int	size() Returns the size (length) of the buffer array.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

index

protected int index

index in the buffer

buffer

public final float[] buffer

float-buffer that holds the data points to draw, order: x,y,x,y,...

phaseX

protected float phaseX

animation phase x-axis

phaseY

protected float phaseY

animation phase y-axis

mFrom

protected int mFrom

indicates from which x-index the visible data begins

mTo

protected int mTo

indicates to which x-index the visible data ranges

Constructor Detail

AbstractBuffer

public AbstractBuffer(int size)

Initialization with buffer-size.

Parameters:

size -

Method Detail

limitFrom

public void limitFrom(int from)

limits the drawing on the x-axis

limitTo

public void limitTo(int to)

limits the drawing on the x-axis

reset

public void reset()

Resets the buffer index to 0 and makes the buffer reusable.

size

public int size()

Returns the size (length) of the buffer array.

Returns:

setPhases

public void setPhases(float phaseX,
             float phaseY)

Set the phases used for animations.

Parameters:

phaseX -

phaseY -

feed

public abstract void feed(T data)

Builds up the buffer with the provided data and resets the buffer-index after feed-completion. This needs to run FAST.

Parameters:

data -