<%@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 = 75.35;
// The bar colors for the meters
int[] barColor = {0x0088ff, 0x00cc00, 0x8833dd, 0xff8800};
// Create a LinearMeter object of size 260 x 80 pixels with very light grey (0xeeeeee)
// backgruond and a light grey (0xccccccc) 3-pixel thick rounded frame
LinearMeter m = new LinearMeter(260, 80, 0xeeeeee, 0xcccccc);
m.setRoundedFrame(Chart.Transparent);
m.setThickFrame(3);
// This example demonstrates putting the text labels at the top or bottom. This is by setting
// the label alignment, as well as the scale, color scale and label positions.
int[] alignment = {Chart.Top, Chart.Top, Chart.Bottom, Chart.Bottom};
int[] meterYPos = {24, 24, 36, 36};
int[] labelYPos = {65, 65, 16, 16};
int[] colorScalePos = {48, 48, 27, 27};
// Set the scale region
m.setMeter(18, meterYPos[chartIndex], 222, 20, alignment[chartIndex]);
// Set meter scale from 0 - 100, with a tick every 10 units
m.setScale(0, 100, 10);
// Add a 5-pixel thick smooth color scale
double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
0xff0000};
m.addColorScale(smoothColorScale, colorScalePos[chartIndex], 5);
// 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.Top), 4);
//
// In this example, some charts have the "Temperauture" label on the left side and the value
// readout on the right side, and some charts have the reverse
//
if (chartIndex % 2 == 0) {
// Add a label on the left side using 8pt Arial Bold font
m.addText(15, labelYPos[chartIndex], "Temperature C", "Arial Bold", 8, Chart.TextColor,
Chart.Left);
// Add a text box on the right side. Display the value using white (0xffffff) 8pt Arial Bold
// font on a black (0x000000) background with depressed rounded border.
TextBox t = m.addText(240, labelYPos[chartIndex], m.formatValue(value, "2"), "Arial", 8,
0xffffff, Chart.Right);
t.setBackground(0x000000, 0x000000, -1);
t.setRoundedCorners(3);
} else {
// Add a label on the right side using 8pt Arial Bold font
m.addText(243, labelYPos[chartIndex], "Temperature C", "Arial Bold", 8, Chart.TextColor,
Chart.Right);
// Add a text box on the left side. Display the value using white (0xffffff) 8pt Arial Bold
// font on a black (0x000000) background with depressed rounded border.
TextBox t = m.addText(18, labelYPos[chartIndex], m.formatValue(value, "2"), "Arial", 8,
0xffffff, Chart.Left);
t.setBackground(0x000000, 0x000000, -1);
t.setRoundedCorners(3);
}
// 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">
H-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> |