<%@page import="ChartDirector.*" %>
<%
//The XY data of the first data series
double[] dataX = {50, 55, 37, 24, 42, 49, 63, 72, 83, 59};
double[] dataY = {3.6, 2.8, 2.5, 2.3, 3.8, 3.0, 3.8, 5.0, 6.0, 3.3};
//Create a XYChart object of size 450 x 420 pixels
XYChart c = new XYChart(450, 420);
//Set the plotarea at (55, 65) and of size 350 x 300 pixels, with white
//background and a light grey border (0xc0c0c0). Turn on both horizontal and
//vertical grid lines with light grey color (0xc0c0c0)
c.setPlotArea(55, 65, 350, 300, 0xffffff, -1, 0xc0c0c0, 0xc0c0c0, -1);
//Add a title to the chart using 18 point Times Bold Itatic font.
c.addTitle("Server Performance", "timesbi.ttf", 18);
//Add a title to the y axis using 12 pts Arial Bold Italic font
c.yAxis().setTitle("Response Time (sec)", "arialbi.ttf", 12);
//Set the y axis line width to 3 pixels
c.yAxis().setWidth(3);
//Set the y axis label format to show 1 decimal point
c.yAxis().setLabelFormat("{value|1}");
//Add a title to the x axis using 12 pts Arial Bold Italic font
c.xAxis().setTitle("Server Load (TPS)", "arialbi.ttf", 12);
//Set the x axis line width to 3 pixels
c.xAxis().setWidth(3);
//Add a scatter layer using (dataX, dataY)
c.addScatterLayer(dataX, dataY, "", Chart.DiamondSymbol, 11, 0x8000);
//Add a trend line layer for (dataX, dataY)
TrendLayer layer = c.addTrendLayer2(dataX, dataY, 0x8000);
//Set the line width to 3 pixels
layer.setLineWidth(3);
//Add a 95% confidence band for the line
layer.addConfidenceBand(0.95, 0x806666ff);
//Add a 95% confidence band (prediction band) for the points
layer.addPredictionBand(0.95, 0x8066ff66);
//Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 10
//pts Arial Bold Italic font. Set the background and border color to
//Transparent.
LegendBox legendBox = c.addLegend(50, 30, false, "arialbi.ttf", 10);
legendBox.setBackground(Chart.Transparent);
//Add entries to the legend box
legendBox.addKey("95% Line Confidence", 0x806666ff);
legendBox.addKey("95% Point Confidence", 0x8066ff66);
//Display the trend line parameters as a text table formatted using CDML
TextBox textbox = c.addText(56, 65, java.text.MessageFormat.format(
"<*block*>Slope\nIntercept\nCorrelation\nStd Error<*/*> <*block*>" +
"{0,number,#.####} sec/tps\n{1,number,#.####} " +
"sec\n{2,number,#.####}\n{3,number,#.####} sec<*/*>", new Object[]{
new Double(layer.getSlope()), new Double(layer.getIntercept()), new Double(
layer.getCorrelation()), new Double(layer.getStdError())}), "arialbd.ttf", 8
);
//Set the background of the text box to light grey, with a black border, and 1
//pixel 3D border
textbox.setBackground(0xc0c0c0, 0, 1);
//output the chart
request.getSession().setAttribute("chart1", c.makeChart2(Chart.PNG));
%>
<html>
<body topmargin=0 leftmargin=5 rightmargin=0 marginwidth=5 marginheight=0>
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
Confidence Band
</div>
<hr color="#000080">
<div style="font-size:10pt; font-family:verdana">
<a href="VIEWSOURCE.jsp?file=<%=request.getServletPath()%>">
View Chart Source Code
</a>
</div>
<br>
<img src="chart1.chart?no_cache=<%=Chart.getUniqueId()%>">
</body>
</html>