net.comrom.chart
Class BarPlotter

java.lang.Object
  net.comrom.chart.ChartComponent
      net.comrom.chart.Plotter
          net.comrom.chart.BarPlotter

public class BarPlotter

extends Plotter

Plotter used to draw a bar chart. It only accepts DataSeries of type BarDataSerie.
Example of use:
// data
double[] d1={1,2,3,4,5,4,2};
BarDataSerie data1= new BarDataSerie(d1,new FillStyle(GraphicsProvider.getColor(ChartColor.CYAN)));
data1.border=new LineStyle(0.2f,GraphicsProvider.getColor(ChartColor.BLACK),LineStyle.LINE_NORMAL);
//data1.borderType=BarDataSerie.BORDER_RAISED;
data1.border=new LineStyle(0.2f,GraphicsProvider.getColor(ChartColor.BLACK),LineStyle.LINE_NORMAL);
data1.valueFont=GraphicsProvider.getFont("Arial",ChartFont.BOLD,10);
double[] d2={-2,3,4,4.2,6.4,4.5,6.1}; BarDataSerie data2= new BarDataSerie(d2,new FillStyle(GraphicsProvider.getColor(ChartColor.GREEN)));
data2.valueFont=GraphicsProvider.getFont("Arial",ChartFont.BOLD,10);
data2.border=new LineStyle(0.2f,GraphicsProvider.getColor(ChartColor.BLACK),LineStyle.LINE_NORMAL);
data2.negativeStyle=new FillStyle(GraphicsProvider.getColor(ChartColor.RED));
Legend l=new Legend();
l.border=new LineStyle(0.2f,GraphicsProvider.getColor(ChartColor.BLACK),LineStyle.LINE_NORMAL);
l.addItem("Company A",new FillStyle(GraphicsProvider.getColor(ChartColor.CYAN)));
l.addItem("Company B",new FillStyle(GraphicsProvider.getColor(ChartColor.GREEN)));
// create title
Title title=new Title("Benefits companies A & B");
// 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=-3;
XAxis.scale.max=7;
YAxis.scale.min=0;
YAxis.scale.max=7;
YAxis.IntegerScale=true;
YAxis.scaleTickInterval=1;
XAxis.scaleTickInterval=1;
XAxis.gridStyle=new LineStyle(0.2f,GraphicsProvider.getColor(ChartColor.WHITE),LineStyle.LINE_DOTS);
YAxis.gridStyle=new LineStyle(0.2f,GraphicsProvider.getColor(ChartColor.WHITE),LineStyle.LINE_DOTS);
String[] lbls={"1998","1999","2000","2001","2002","2003","2004","2005"};
YAxis.tickLabels=lbls;
HAxisLabel XLabel= new HAxisLabel("million $",GraphicsProvider.getColor(ChartColor.BLACK),GraphicsProvider.getFont("Arial",ChartFont.BOLD,12));
VAxisLabel YLabel= new VAxisLabel("Year",GraphicsProvider.getColor(ChartColor.BLACK),GraphicsProvider.getFont("Arial",ChartFont.BOLD,12));
// plotter
BarPlotter plot=new BarPlotter();
plot.verticalBars=false;
plot.interBarSpace=0;
// create chart
Chart chart=new Chart(title,plot,XAxis,YAxis);
chart.XLabel=XLabel;
chart.YLabel=YLabel;
chart.legend=l;
chart.addSerie(data2);
chart.addSerie(data1);
chart.back=new FillStyle(GraphicsProvider.getColor(ChartColor.LIGHTGRAY));

Field Summary

boolean	barAtAxis
double	barsBase start bars at this position
int	barWidth Width of the bar.
boolean	cumulative If true the bars will be display on the top of each other to create a stack bar chart.
boolean	cumulativeBackwardsCompatible
boolean	eventChart set it to true if you want to draw event charts.
int	interBarSpace space between two bars (pixels).
double	InterGroupSpace space between two groups of bars (pixels).
boolean	summedLabels if true labels will be the summed values of the bars
boolean	verticalBars this fields indicates whether bars (horizontal) or columns (vertical) should be used.

Fields inherited from class net.comrom.chart.Plotter

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

Fields inherited from class net.comrom.chart.ChartComponent

height, width, x, y

Constructor Summary

BarPlotter()

Method Summary

void	addSerie(DataSerie s)

Methods inherited from class net.comrom.chart.Plotter

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

verticalBars

public boolean verticalBars

this fields indicates whether bars (horizontal) or columns (vertical) should be used.

barWidth

public int barWidth

Width of the bar.

interBarSpace

public int interBarSpace

space between two bars (pixels).

InterGroupSpace

public double InterGroupSpace

space between two groups of bars (pixels).

cumulative

public boolean cumulative

If true the bars will be display on the top of each other to create a stack bar chart.

summedLabels

public boolean summedLabels

if true labels will be the summed values of the bars

eventChart

public boolean eventChart

set it to true if you want to draw event charts.

barsBase

public double barsBase

start bars at this position

cumulativeBackwardsCompatible

public boolean cumulativeBackwardsCompatible

barAtAxis

public boolean barAtAxis

Constructor Detail

BarPlotter

public BarPlotter()

Method Detail

addSerie

public void addSerie(DataSerie s)

Overrides:

addSerie in class Plotter