com.java4less.rchart
Class LinePlotter

java.lang.Object
  |
  +--com.java4less.rchart.ChartComponent
        |
        +--com.java4less.rchart.Plotter
              |
              +--com.java4less.rchart.LinePlotter

Direct Known Subclasses:

CurvePlotter

public class LinePlotter

extends Plotter

 This is the plotter used to draw a line chart. It only accepts DataSeries of type LineDataSerie.

Example of Line chart:

// data
double[] d1={2,1 ,2 ,3 ,4 ,5 ,4 ,3};
double[] dmax1={0.5,0 ,0.2 ,0.1 ,0.5 ,0,1 ,0};
MaxMinDataSerie data1= new MaxMinDataSerie(d1,null);
data1.bubbleChart=true;
data1.fillBubble=true;
data1.drawPoint=true;
data1.pointColor=GraphicsProvider.getColor(ChartColor.GREEN);
data1.setMaxMinValues(dmax1,null);

double[] d2={2,1 ,2 ,3 ,4 ,5 ,4 ,3};
LineDataSerie data2= new LineDataSerie(d2,new LineStyle(0.2f,GraphicsProvider.getColor(ChartColor.WHITE),LineStyle.LINE_DOTS));
data2.valueFont=GraphicsProvider.getFont("Arial",ChartFont.BOLD,10);
data2.valueColor=GraphicsProvider.getColor(ChartColor.YELLOW);
data2.valueFont=GraphicsProvider.getFont("Arial",ChartFont.BOLD,10);

double[] d3={1,2 ,3 ,2 ,3 ,4 ,1 ,2};
double[] dmax3={0,0.2 ,0.2 ,0 ,0.2 ,0,0.3 ,0};
MaxMinDataSerie data3= new MaxMinDataSerie(d3,null);
data3.bubbleChart=true;
data3.fillBubble=false;
data3.drawPoint=true;
data3.pointColor=GraphicsProvider.getColor(ChartColor.WHITE);
data3.setMaxMinValues(dmax3,null);

double[] d4={1,2 ,3 ,2 ,3 ,4 ,1 ,2};
LineDataSerie data4= new LineDataSerie(d4,new LineStyle(0.2f,GraphicsProvider.getColor(ChartColor.WHITE),LineStyle.LINE_DOTS));
data4.valueFont=GraphicsProvider.getFont("Arial",ChartFont.PLAIN,10);
data4.valueColor=GraphicsProvider.getColor(ChartColor.YELLOW);
data4.valueFont=GraphicsProvider.getFont("Arial",ChartFont.BOLD,10);

// create title
Title title=new Title("Price");
title.color=GraphicsProvider.getColor(ChartColor.WHITE);

// create axis
Axis  XAxis=new Axis(Axis.HORIZONTAL,new Scale());
Axis  YAxis=new Axis(Axis.VERTICAL,new Scale());
XAxis.tickAtBase=true; // draw also first tick
XAxis.scale.min=-1;
XAxis.ceroAxis=Axis.CEROAXIS_NO;
YAxis.ceroAxis=Axis.CEROAXIS_NO;
YAxis.scale.min=0;
YAxis.scale.max=6;
YAxis.DescColor=GraphicsProvider.getColor(ChartColor.WHITE);
YAxis.scaleTickInterval=1;
XAxis.scaleTickInterval=1;
XAxis.bigTickInterval=1;
XAxis.DescColor=GraphicsProvider.getColor(ChartColor.WHITE);
String[] lbls={"","8 Jan.","9 Jan.","10 Jan.","11 Jan.","12 Jan.","13 Jan.","14 Jan.","15 Jan."};
XAxis.tickLabels=lbls;
XAxis.style =new LineStyle(0.2f,GraphicsProvider.getColor(ChartColor.WHITE),LineStyle.LINE_NORMAL);
YAxis.style =new LineStyle(0.2f,GraphicsProvider.getColor(ChartColor.WHITE),LineStyle.LINE_NORMAL);

HAxisLabel XLabel= new HAxisLabel("Week",GraphicsProvider.getColor(ChartColor.WHITE),GraphicsProvider.getFont("Arial",ChartFont.ITALIC,12));
VAxisLabel YLabel= new VAxisLabel("Value",GraphicsProvider.getColor(ChartColor.WHITE),GraphicsProvider.getFont("Arial",ChartFont.ITALIC,12));

// plotter
LinePlotter plot=new LinePlotter();

// create chart
Chart chart=new Chart(title,plot,XAxis,YAxis);
chart.XLabel=XLabel;
chart.YLabel=YLabel;
chart.addSerie(data1);
chart.addSerie(data2);
chart.addSerie(data4);
chart.addSerie(data3);
chart.back=new FillStyle(GraphicsProvider.getColor(ChartColor.BLACK));

Field Summary

boolean	fixedLimits clip lines using maximum and minimum values if the scale?
boolean	hideCeros if true, 0 values will not have a label
int	MaxMinType Type of the chart (ONLY MAXMIN CHARTS).
static int	MM_CANDLESTICK Candlestick chart
static int	MM_NORMAL normal line chart
static int	MM_OHLC OHLC chart
int	pointSize size of squares that represent points.
static int	TYPE_B_SPLINES b-spline curve.
static int	TYPE_CUBIC_NATURAL curve.
static int	TYPE_LEAST_SQUARES_LINE create a line using the least squares method.
static int	TYPE_LINE normal lines

Fields inherited from class com.java4less.rchart.Plotter

back, backImage, depth, visibleHeight, visibleWidth, XScale, Y2Scale, YScale

Fields inherited from class com.java4less.rchart.ChartComponent

height, width, x, y

Constructor Summary

LinePlotter()

Methods inherited from class com.java4less.rchart.Plotter

addSerie, getCombinable, getNeedsAxis, getSerie, getSeriesCount, plot, plotBackground, replaceSerie, setSerie

Methods inherited from class java.lang.Object

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

Field Detail

hideCeros

public boolean hideCeros

if true, 0 values will not have a label

TYPE_LINE

public static final int TYPE_LINE

normal lines

See Also:

Constant Field Values

TYPE_CUBIC_NATURAL

public static final int TYPE_CUBIC_NATURAL

curve. You must use the class CurvePlotter.

See Also:

Constant Field Values

TYPE_B_SPLINES

public static final int TYPE_B_SPLINES

b-spline curve. You must use the class CurvePlotter.

See Also:

Constant Field Values

TYPE_LEAST_SQUARES_LINE

public static final int TYPE_LEAST_SQUARES_LINE

create a line using the least squares method.

See Also:

Constant Field Values

MM_NORMAL

public static final int MM_NORMAL

normal line chart

See Also:

Constant Field Values

MM_OHLC

public static final int MM_OHLC

OHLC chart

See Also:

Constant Field Values

MM_CANDLESTICK

public static final int MM_CANDLESTICK

Candlestick chart

See Also:

Constant Field Values

fixedLimits

public boolean fixedLimits

clip lines using maximum and minimum values if the scale?

MaxMinType

public int MaxMinType

Type of the chart (ONLY MAXMIN CHARTS). The value can be (NORMAL, OHLC o CANDLESTICK. The first one needs maximum and minimum values, the other two also close values.

pointSize

public int pointSize

size of squares that represent points.

Constructor Detail

LinePlotter

public LinePlotter()