Parametric Curve Fitting

[JSP Version] jspdemo/paramcurve.jsp
<%@page import="ChartDirector.*, java.util.*" %>
<%
// The XY data of the first data series
double[] dataX0 = {10, 35, 17, 4, 22, 29, 45, 52, 63, 39};
double[] dataY0 = {2.0, 3.2, 2.7, 1.2, 2.8, 2.9, 3.1, 3.0, 2.3, 3.3};

// The XY data of the second data series
double[] dataX1 = {30, 35, 17, 4, 22, 59, 43, 52, 63, 39};
double[] dataY1 = {1.0, 1.3, 0.7, 0.6, 0.8, 3.0, 1.8, 2.3, 3.4, 1.5};

// The XY data of the third data series
double[] dataX2 = {28, 35, 15, 10, 22, 60, 46, 64, 39};
double[] dataY2 = {2.0, 2.2, 1.2, 0.4, 1.8, 2.7, 2.4, 2.8, 2.4};

// Create a XYChart object of size 540 x 480 pixels
XYChart c = new XYChart(540, 480);

// Set the plotarea at (70, 65) and of size 400 x 350 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(70, 65, 400, 350, 0xffffff, -1, 0xc0c0c0, 0xc0c0c0, -1);

// Add a legend box with the top center point anchored at (270, 30). Use horizontal layout. Use 10pt
// Arial Bold Italic font. Set the background and border color to Transparent.
LegendBox legendBox = c.addLegend(270, 30, false, "Arial Bold Italic", 10);
legendBox.setAlignment(Chart.TopCenter);
legendBox.setBackground(Chart.Transparent, Chart.Transparent);

// Add a title to the chart using 18 point Times Bold Itatic font.
c.addTitle("Parametric Curve Fitting", "Times New Roman Bold Italic", 18);

// Add titles to the axes using 12pt Arial Bold Italic font
c.yAxis().setTitle("Axis Title Placeholder", "Arial Bold Italic", 12);
c.xAxis().setTitle("Axis Title Placeholder", "Arial Bold Italic", 12);

// Set the axes line width to 3 pixels
c.yAxis().setWidth(3);
c.xAxis().setWidth(3);

// Add a scatter layer using (dataX0, dataY0)
c.addScatterLayer(dataX0, dataY0, "Polynomial", Chart.GlassSphere2Shape, 11, 0xff0000);

// Add a degree 2 polynomial trend line layer for (dataX0, dataY0)
TrendLayer trend0 = c.addTrendLayer2(dataX0, dataY0, 0xff0000);
trend0.setLineWidth(3);
trend0.setRegressionType(Chart.PolynomialRegression(2));
trend0.setHTMLImageMap("{disable}");

// Add a scatter layer for (dataX1, dataY1)
c.addScatterLayer(dataX1, dataY1, "Exponential", Chart.GlassSphere2Shape, 11, 0x00aa00);

// Add an exponential trend line layer for (dataX1, dataY1)
TrendLayer trend1 = c.addTrendLayer2(dataX1, dataY1, 0x00aa00);
trend1.setLineWidth(3);
trend1.setRegressionType(Chart.ExponentialRegression);
trend1.setHTMLImageMap("{disable}");

// Add a scatter layer using (dataX2, dataY2)
c.addScatterLayer(dataX2, dataY2, "Logarithmic", Chart.GlassSphere2Shape, 11, 0x0000ff);

// Add a logarithmic trend line layer for (dataX2, dataY2)
TrendLayer trend2 = c.addTrendLayer2(dataX2, dataY2, 0x0000ff);
trend2.setLineWidth(3);
trend2.setRegressionType(Chart.LogarithmicRegression);
trend2.setHTMLImageMap("{disable}");

// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);

// Include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("", "", "title='[{dataSetName}] ({x}, {value})'"));
%>
<!DOCTYPE html>
<html>
<head>
    <title>Parametric Curve Fitting</title>
    <!-- Include ChartDirector Javascript Library to support chart interactions -->
    <script type="text/javascript" src="cdjcv.js"></script>
</head>
<body style="margin:5px 0px 0px 5px">
    <div style="font:bold 18pt verdana;">
        Parametric Curve Fitting
    </div>
    <hr style="border:solid 1px #000080; background:#000080" />
    <div style="font:10pt verdana; margin-bottom:1.5em">
        <a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a>
    </div>
    <!-- ****** Here is the chart image ****** -->
    <%= viewer.renderHTML(response) %>
</body>
</html>