Linear Zone Meter

[Web Version (in ASP)] aspdemo\linearzonemeter.asp

<%@ language="vbscript" %>
<%
Set cd = CreateObject("ChartDirector.API")

' The value to display on the meter
value = 85

' Create an LinearMeter object of size 210 x 45 pixels, using silver background with a 2 pixel black
' 3D depressed border.
Set m = cd.LinearMeter(210, 45, cd.silverColor(), 0, -2)

' Set the scale region top-left corner at (5, 5), with size of 200 x 20 pixels. The scale labels are
' located on the bottom (implies horizontal meter)
Call m.setMeter(5, 5, 200, 20, cd.Bottom)

' Set meter scale from 0 - 100
Call m.setScale(0, 100)

' Add a title at the bottom of the meter with a 1 pixel raised 3D border
Call m.addTitle2(cd.Bottom, "Battery Level", "Arial Bold", 8).setBackground(cd.Transparent, -1, 1)

' Set 3 zones of different colors to represent Good/Weak/Bad data ranges
Call m.addZone(50, 100, &H99ff99, "Good")
Call m.addZone(20, 50, &Hffff66, "Weak")
Call m.addZone(0, 20, &Hffcccc, "Bad")

' Add empty labels (just need the ticks) at 0/20/50/80 as separators for zones
Call m.addLabel(0, " ")
Call m.addLabel(20, " ")
Call m.addLabel(50, " ")
Call m.addLabel(100, " ")

' Add a semi-transparent blue (800000ff) pointer at the specified value, using triangular pointer
' shape
Call m.addPointer(value, &H800000ff).setShape(cd.TriangularPointer)

' Output the chart
Set viewer = cd.WebChartViewer(Request, "chart1")
Call viewer.setChart(m, cd.SVG)
%>

<!DOCTYPE html>
<html>
<head>
    <title>Linear Zone Meter</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;">
        Linear Zone Meter
    </div>
    <hr style="border:solid 1px #000080; background:#000080" />
    <div style="font:10pt verdana; margin-bottom:1.5em">
        <a href="viewsource.asp?file=<%= Request("SCRIPT_NAME") %>">View Chart Source Code</a>
    </div>
    <!-- ****** Here is the chart image ****** -->
    <%= viewer.renderHTML() %>
</body>
</html>

[Windows Version (in Visual Basic)] vbdemo\linearzonemeter.cls

Public Sub createChart(viewer As Object, chartIndex As Integer)

    Dim cd As New ChartDirector.API

    ' The value to display on the meter
    Dim value As Double
    value = 85

    ' Create an LinearMeter object of size 210 x 45 pixels, using silver background with a 2 pixel
    ' black 3D depressed border.
    Dim m As LinearMeter
    Set m = cd.LinearMeter(210, 45, cd.silverColor(), 0, -2)

    ' Set the scale region top-left corner at (5, 5), with size of 200 x 20 pixels. The scale labels
    ' are located on the bottom (implies horizontal meter)
    Call m.setMeter(5, 5, 200, 20, cd.Bottom)

    ' Set meter scale from 0 - 100
    Call m.setScale(0, 100)

    ' Add a title at the bottom of the meter with a 1 pixel raised 3D border
    Call m.addTitle2(cd.Bottom, "Battery Level", "arialbd.ttf", 8).setBackground(cd.Transparent, _
        -1, 1)

    ' Set 3 zones of different colors to represent Good/Weak/Bad data ranges
    Call m.addZone(50, 100, &H99ff99, "Good")
    Call m.addZone(20, 50, &Hffff66, "Weak")
    Call m.addZone(0, 20, &Hffcccc, "Bad")

    ' Add empty labels (just need the ticks) at 0/20/50/80 as separators for zones
    Call m.addLabel(0, " ")
    Call m.addLabel(20, " ")
    Call m.addLabel(50, " ")
    Call m.addLabel(100, " ")

    ' Add a semi-transparent blue (800000ff) pointer at the specified value, using triangular
    ' pointer shape
    Call m.addPointer(value, &H800000ff).setShape(cd.TriangularPointer)

    ' Output the chart
    Set viewer.Picture = m.makePicture()

End Sub