<%@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 chartIndex)
{
// The value to display on the meter
double value = 74.25;
// Bar colors of the meters
int[] barColor = {0x2299ff, 0x00ee00, 0xaa66ee, 0xff7711};
// Create a LinearMeter object of size 70 x 240 pixels with very light grey (0xeeeeee)
// backgruond and a grey (0xaaaaaa) 3-pixel thick rounded frame
LinearMeter m = new LinearMeter(70, 240, 0xeeeeee, 0xaaaaaa);
m.setRoundedFrame(Chart.Transparent);
m.setThickFrame(3);
// This example demonstrates putting the text labels at the left or right side of the meter
// scale, and putting the color scale on the same side as the labels or on opposite side.
int[] alignment = {Chart.Left, Chart.Left, Chart.Right, Chart.Right};
int[] meterXPos = {28, 38, 12, 21};
int[] labelGap = {2, 12, 10, 2};
int[] colorScalePos = {53, 28, 36, 10};
// Configure the position of the meter scale and which side to put the text labels
m.setMeter(meterXPos[chartIndex], 18, 20, 205, alignment[chartIndex]);
// Set meter scale from 0 - 100, with a tick every 10 units
m.setScale(0, 100, 10);
// To put the color scale on the same side as the text labels, we need to increase the gap
// between the labels and the meter scale to make room for the color scale
m.setLabelPos(false, labelGap[chartIndex]);
// Add a smooth color scale to the meter
double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
0xff0000};
m.addColorScale(smoothColorScale, colorScalePos[chartIndex], 6);
// Add a bar from 0 to value with glass effect and 4 pixel rounded corners
m.addBar(0, value, barColor[chartIndex], Chart.glassEffect(Chart.NormalGlare, Chart.Left), 4);
// Output the chart
ImageWithHotSpot ret = new ImageWithHotSpot();
ret.imageURL = m.makeSession(request, "chart" + chartIndex);
return ret;
}
%>
<%
ImageWithHotSpot chart0 = createChart(request, 0);
ImageWithHotSpot chart1 = createChart(request, 1);
ImageWithHotSpot chart2 = createChart(request, 2);
ImageWithHotSpot chart3 = createChart(request, 3);
%>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
V-Bar Meter Orientation
</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)%>'>
<img src='<%=response.encodeURL("getchart.jsp?"+chart1.imageURL)%>'>
<img src='<%=response.encodeURL("getchart.jsp?"+chart2.imageURL)%>'>
<img src='<%=response.encodeURL("getchart.jsp?"+chart3.imageURL)%>'>
</body>
</html> |