Black Vertical Bar Meters

[JSP Version] jspdemo/blackvbarmeter.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 = 66.77;

    // Create a LinearMeter object of size 70 x 260 pixels with black background and rounded corners
    LinearMeter m = new LinearMeter(70, 260, 0x000000);
    m.setRoundedFrame(Chart.Transparent);

    // Set the default text and line colors to white (0xffffff)
    m.setColor(Chart.TextColor, 0xffffff);
    m.setColor(Chart.LineColor, 0xffffff);

    // Set the scale region top-left corner at (36, 30), with size of 20 x 196 pixels. The scale
    // labels are located on the left (default - implies vertical meter).
    m.setMeter(36, 30, 20, 196);

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

    // Add the chart title at the top center
    TextBox title = m.addText(m.getWidth() / 2, 5, "Temp C", "Arial Bold", 8, Chart.TextColor,
        Chart.TopCenter);

    // Move the scale labels 8 pixels from the meter scale to make room for the color scale
    m.setLabelPos(false, 8);

    // Demostrate different types of color scales
    double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
        0xff0000};
    double[] stepColorScale = {0, 0x00dd00, 50, 0xffff00, 80, 0xff0000, 100};
    double[] highLowColorScale = {0, 0x0000ff, 40, Chart.Transparent, 60, Chart.Transparent, 100,
        0xff0000};
    double[] highColorScale = {70, Chart.Transparent, 100, 0xff0000};

    if (chartIndex == 0) {
        // Add a blue (0x0088ff) bar from 0 to value with glass effect and 4 pixel rounded corners
        m.addBar(0, value, 0x0088ff, Chart.glassEffect(Chart.NormalGlare, Chart.Left), 4);
        // Add a 4-pixel thick smooth color scale at x = 29 (left of meter scale)
        m.addColorScale(smoothColorScale, 29, 4);
    } else if (chartIndex == 1) {
         // Add a yellow (0xCC9922) bar from 0 to value with bar lighting effect
        m.addBar(0, value, 0xcc9922, Chart.barLighting());
        // Add a 4-pixel thick smooth color scale at x = 29 (left of meter scale)
        m.addColorScale(smoothColorScale, 29, 4);

        // Set the title style to black text on a yellow (0xcc9922) background with rounded corners
        title.setFontColor(0x000000);
        title.setBackground(0xcc9922);
        title.setRoundedCorners(2);
    } else if (chartIndex == 2) {
         // Add a grey (0xaaaaaa) bar from 0 to value with bar lighting effect
        m.addBar(0, value, 0xaaaaaa, Chart.barLighting());
        // Add a 4-pixel high/low color scale at x = 29 (left of meter scale)
        m.addColorScale(highLowColorScale, 29, 4);
    } else if (chartIndex == 3) {
         // Add a brown (0xbb6622) bar from 0 to value with cylinder lighting effect
        m.addBar(0, value, 0xbb6622, Chart.cylinderEffect());
        // Add a 4 pixel thick brown (0xbb6622) frame
        m.setThickFrame(4, 0xbb6622);
        // Add a high only color scale at x = 29 (left of meter scale)
        m.addColorScale(highColorScale, 29, 4);
    } else if (chartIndex == 4) {
        // Add a purple (0x7755ee) bar from 0 to value
        m.addBar(0, value, 0x7755ee);
        // Add a 4 pixel thick purple (0x880088) frame
        m.setThickFrame(4, 0x880088);
        // Add a 4-pixel high/low color scale at x = 29 (left of meter scale)
        m.addColorScale(highLowColorScale, 29, 4);
    } else {
         // Add a green (0x00bb00) bar from 0 to value with soft lighting effect and 4 pixel rounded
         // corners
        m.addBar(0, value, 0x00bb00, Chart.softLighting(), 4);
        // Add a 4-pixel step color scale at x = 29 (left of meter scale)
        m.addColorScale(stepColorScale, 29, 4);
    }

    // Add a text box at the bottom-center. Display the value using white (0xffffff) 8pt Arial Bold
    // font on a black (0x000000) background with depressed grey (0x333333) rounded border.
    TextBox t = m.addText(m.getWidth() / 2, m.getHeight() - 7, m.formatValue(value, "2"),
        "Arial Bold", 8, 0xffffff, Chart.BottomCenter);
    t.setBackground(0x000000, 0x333333, -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>Black Vertical 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;">
        Black Vertical 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>