<%@page import="ChartDirector.*" %>
<%@page import="javax.servlet.http.*" %>
<%!
// A simple structure to represent a chart image with an image map
private static class ImageWithHotSpot
{
String imageURL;
String imageMap;
}
// Function to create the demo charts
ImageWithHotSpot createChart(HttpServletRequest request, int index)
{
// The data for the pie chart
double[] data = {42, 18, 8};
// The labels for the pie chart
String[] labels = {"Agree", "Disagree", "Not Sure"};
// The colors to use for the sectors
int[] colors = {0x66ff66, 0xff6666, 0xffff00};
// Create a PieChart object of size 300 x 300 pixels. Set the background to a
// gradient color from blue (aaccff) to sky blue (ffffff), with a grey (888888)
// border. Use rounded corners and soft drop shadow.
PieChart c = new PieChart(300, 300);
c.setBackground(c.linearGradientColor(0, 0, 0, c.getHeight() / 2, 0xaaccff,
0xffffff), 0x888888);
c.setRoundedFrame();
c.setDropShadow();
if (index == 0) {
//============================================================
// Draw a pie chart where the label is on top of the pie
//============================================================
// Set the center of the pie at (150, 150) and the radius to 120 pixels
c.setPieSize(150, 150, 120);
// Set the label position to -40 pixels from the perimeter of the pie (-ve
// means label is inside the pie)
c.setLabelPos(-40);
} else {
//============================================================
// Draw a pie chart where the label is outside the pie
//============================================================
// Set the center of the pie at (150, 150) and the radius to 80 pixels
c.setPieSize(150, 150, 80);
// Set the sector label position to be 20 pixels from the pie. Use a join
// line to connect the labels to the sectors.
c.setLabelPos(20, Chart.LineColor);
}
// Set the pie data and the pie labels
c.setData(data, labels);
// Set the sector colors
c.setColors2(Chart.DataColor, colors);
// Use local gradient shading, with a 1 pixel semi-transparent black (bb000000)
// border
c.setSectorStyle(Chart.LocalGradientShading, 0xbb000000, 1);
// Output the chart
ImageWithHotSpot ret = new ImageWithHotSpot();
ret.imageURL = c.makeSession(request, "chart" + index);
// Include tool tip for the chart
ret.imageMap = c.getHTMLImageMap("", "",
"title='{label}: {value} responses ({percent}%)'");
return ret;
}
%>
<%
ImageWithHotSpot chart0 = createChart(request, 0);
ImageWithHotSpot chart1 = createChart(request, 1);
%>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
Circular Label Layout
</div>
<hr color="#000080">
<div style="font-size:10pt; font-family:verdana; margin-bottom:1.5em">
<a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a>
</div>
<img src='<%=response.encodeURL("getchart.jsp?"+chart0.imageURL)%>'
usemap="#map0" border="0">
<map name="map0"><%=chart0.imageMap%></map>
<img src='<%=response.encodeURL("getchart.jsp?"+chart1.imageURL)%>'
usemap="#map1" border="0">
<map name="map1"><%=chart1.imageMap%></map>
</body>
</html> |