Color Horizontal Bar Meters

[JSP Version] jspdemo/colorhbarmeter.jsp
<%@page import="ChartDirector.*, java.util.*" %>
<%!
// Function to create the demo charts
void createChart(WebChartViewer viewer, int chartIndex)
{
    // The value to display on the meter
    double value = 75.35;

    // The background, border and bar colors of the meters
    int[] bgColor = {0xbbddff, 0xccffcc, 0xffddff, 0xffffaa, 0xffdddd, 0xeeeeee};
    int[] borderColor = {0x000088, 0x006600, 0x880088, 0xee6600, 0x880000, 0x666666};
    int[] barColor = {0x0088ff, 0x00cc00, 0x8833dd, 0xff8800, 0xee3333, 0x888888};

    // Create a LinearMeter object of size 260 x 80 pixels with a 3-pixel thick rounded frame
    LinearMeter m = new LinearMeter(260, 80, bgColor[chartIndex], borderColor[chartIndex]);
    m.setRoundedFrame(Chart.Transparent);
    m.setThickFrame(3);

    // Set the scale region top-left corner at (18, 24), with size of 222 x 20 pixels. The scale
    // labels are located on the top (implies horizontal meter)
    m.setMeter(18, 24, 222, 20, Chart.Top);

    // Set meter scale from 0 - 100, with a tick every 10 units
    m.setScale(0, 100, 10);

    if (chartIndex % 4 == 0) {
        // Add a 5-pixel thick smooth color scale at y = 48 (below the meter scale)
        double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
            0xff0000};
        m.addColorScale(smoothColorScale, 48, 5);
    } else if (chartIndex % 4 == 1) {
        // Add a 5-pixel thick step color scale at y = 48 (below the meter scale)
        double[] stepColorScale = {0, 0x00cc00, 50, 0xffdd00, 80, 0xff3333, 100};
        m.addColorScale(stepColorScale, 48, 5);
    } else if (chartIndex % 4 == 2) {
        // Add a 5-pixel thick high/low color scale at y = 48 (below the meter scale)
        double[] highLowColorScale = {0, 0x0000ff, 40, Chart.Transparent, 60, Chart.Transparent,
            100, 0xff0000};
        m.addColorScale(highLowColorScale, 48, 5);
    } else {
        // Add a 5-pixel thick high only color scale at y = 48 (below the meter scale)
        double[] highColorScale = {70, Chart.Transparent, 100, 0xff0000};
        m.addColorScale(highColorScale, 48, 0, 48, 8);
    }

    // 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);

    // Add a label right aligned to (243, 65) using 8pt Arial Bold font
    m.addText(243, 65, "Temperature C", "Arial Bold", 8, Chart.TextColor, Chart.Right);

    // Add a text box left aligned to (18, 65). Display the value using white (0xffffff) 8pt Arial
    // Bold font on a black (0x000000) background with depressed rounded border.
    TextBox t = m.addText(18, 65, m.formatValue(value, "2"), "Arial", 8, 0xffffff, Chart.Left);
    t.setBackground(0x000000, 0x000000, -1);
    t.setRoundedCorners(3);

    // Output the chart
    viewer.setChart(m, Chart.SVG);
}
%>
<%
// This example includes 6 charts
WebChartViewer[] viewers = new WebChartViewer[6];
for (int i = 0; i < viewers.length; ++i) {
    viewers[i] = new WebChartViewer(request, "chart" + i);
    createChart(viewers[i], i);
}
%>
<!DOCTYPE html>
<html>
<head>
    <title>Color Horizontal Bar Meters</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;">
        Color Horizontal Bar Meters
    </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 are the chart images ****** -->
    <%
        for (int i = 0; i < viewers.length; ++i) {
            out.write(viewers[i].renderHTML(response));
            out.write(" ");
        }
    %>
</body>
</html>