ChartDirector 6.2 (.NET Edition)

H-Bar Meter Orientation


      

This example demonstrates horizontal bar meters in different orientations.

In a horizontal bar meter, the scale labels can be positioned above the meter scale or below it. This is controlled by the last argument to LinearMeter.setMeter, which can be Top or Bottom,

The title and value readout added using BaseChart.addText can be put at any position. In this example, we put them at the opposite side to the scale labels.

Source Code Listing

[Windows Forms - C# version] NetWinCharts\CSharpWinCharts\hbarmeterorientation.cs
using System;
using ChartDirector;

namespace CSharpChartExplorer
{
    public class hbarmeterorientation : DemoModule
    {
        //Name of demo module
        public string getName() { return "H-Bar Meter Orientation"; }

        //Number of charts produced in this demo module
        public int getNoOfCharts() { return 4; }

        //Main code for creating charts
        public void createChart(WinChartViewer viewer, 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.
                ChartDirector.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.
                ChartDirector.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
            viewer.Chart = m;
        }
    }
}

[Windows Forms - VB Version] NetWinCharts\VBNetWinCharts\hbarmeterorientation.vb
Imports System
Imports Microsoft.VisualBasic
Imports ChartDirector

Public Class hbarmeterorientation
    Implements DemoModule

    'Name of demo module
    Public Function getName() As String Implements DemoModule.getName
        Return "H-Bar Meter Orientation"
    End Function

    'Number of charts produced in this demo module
    Public Function getNoOfCharts() As Integer Implements DemoModule.getNoOfCharts
        Return 4
    End Function

    'Main code for creating charts
    Public Sub createChart(viewer As WinChartViewer, chartIndex As Integer) _
        Implements DemoModule.createChart

        ' The value to display on the meter
        Dim value As Double = 75.35

        ' The bar colors for the meters
        Dim barColor() As Integer = {&H0088ff, &H00cc00, &H8833dd, &Hff8800}

        ' 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
        Dim m As LinearMeter = New LinearMeter(260, 80, &Heeeeee, &Hcccccc)
        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.
        Dim alignment() As Integer = {Chart.Top, Chart.Top, Chart.Bottom, Chart.Bottom}
        Dim meterYPos() As Integer = {24, 24, 36, 36}
        Dim labelYPos() As Integer = {65, 65, 16, 16}
        Dim colorScalePos() As Integer = {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
        Dim smoothColorScale() As Double = {0, &H0000ff, 25, &H0088ff, 50, &H00ff00, 75, &Hdddd00, _
            100, &Hff0000}
        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 Mod 2 = 0 Then
            ' 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.
            Dim t As ChartDirector.TextBox = m.addText(240, labelYPos(chartIndex), m.formatValue( _
                value, "2"), "Arial", 8, &Hffffff, Chart.Right)
            t.setBackground(&H000000, &H000000, -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.
            Dim t As ChartDirector.TextBox = m.addText(18, labelYPos(chartIndex), m.formatValue( _
                value, "2"), "Arial", 8, &Hffffff, Chart.Left)
            t.setBackground(&H000000, &H000000, -1)
            t.setRoundedCorners(3)
        End If

        ' Output the chart
        viewer.Chart = m

    End Sub

End Class

[WPF - C#] NetWPFCharts\hbarmeterorientation.cs
using System;
using ChartDirector;

namespace CSharpWPFDemo
{
    public class hbarmeterorientation : DemoModule
    {
        //Name of demo module
        public string getName() { return "H-Bar Meter Orientation"; }

        //Number of charts produced in this demo module
        public int getNoOfCharts() { return 4; }

        //Main code for creating charts
        public void createChart(WPFChartViewer viewer, 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.
                ChartDirector.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.
                ChartDirector.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
            viewer.Chart = m;
        }
    }
}

[ASP.NET Web Forms - C# version] NetWebCharts\CSharpASP\hbarmeterorientation.aspx
(Click here on how to convert this code to code-behind style.)
<%@ Page Language="C#" Debug="true" %>
<%@ Import Namespace="ChartDirector" %>
<%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %>

<!DOCTYPE html>

<script runat="server">

//
// Create chart
//
protected void createChart(WebChartViewer viewer, 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.
        ChartDirector.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.
        ChartDirector.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
    viewer.Image = m.makeWebImage(Chart.PNG);
}

//
// Page Load event handler
//
protected void Page_Load(object sender, EventArgs e)
{
    createChart(WebChartViewer0, 0);
    createChart(WebChartViewer1, 1);
    createChart(WebChartViewer2, 2);
    createChart(WebChartViewer3, 3);
}

</script>

<html>
<body>
    <chart:WebChartViewer id="WebChartViewer0" runat="server" />
    <chart:WebChartViewer id="WebChartViewer1" runat="server" />
    <chart:WebChartViewer id="WebChartViewer2" runat="server" />
    <chart:WebChartViewer id="WebChartViewer3" runat="server" />
</body>
</html>

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\hbarmeterorientation.aspx
(Click here on how to convert this code to code-behind style.)
<%@ Page Language="VB" Debug="true" %>
<%@ Import Namespace="ChartDirector" %>
<%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %>

<!DOCTYPE html>

<script runat="server">

'
' Create chart
'
Protected Sub createChart(viewer As WebChartViewer, chartIndex As Integer)

    ' The value to display on the meter
    Dim value As Double = 75.35

    ' The bar colors for the meters
    Dim barColor() As Integer = {&H0088ff, &H00cc00, &H8833dd, &Hff8800}

    ' 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
    Dim m As LinearMeter = New LinearMeter(260, 80, &Heeeeee, &Hcccccc)
    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.
    Dim alignment() As Integer = {Chart.Top, Chart.Top, Chart.Bottom, Chart.Bottom}
    Dim meterYPos() As Integer = {24, 24, 36, 36}
    Dim labelYPos() As Integer = {65, 65, 16, 16}
    Dim colorScalePos() As Integer = {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
    Dim smoothColorScale() As Double = {0, &H0000ff, 25, &H0088ff, 50, &H00ff00, 75, &Hdddd00, _
        100, &Hff0000}
    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 Mod 2 = 0 Then
        ' 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.
        Dim t As ChartDirector.TextBox = m.addText(240, labelYPos(chartIndex), m.formatValue( _
            value, "2"), "Arial", 8, &Hffffff, Chart.Right)
        t.setBackground(&H000000, &H000000, -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.
        Dim t As ChartDirector.TextBox = m.addText(18, labelYPos(chartIndex), m.formatValue(value, _
            "2"), "Arial", 8, &Hffffff, Chart.Left)
        t.setBackground(&H000000, &H000000, -1)
        t.setRoundedCorners(3)
    End If

    ' Output the chart
    viewer.Image = m.makeWebImage(Chart.PNG)

End Sub

'
' Page Load event handler
'
Protected Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)

    createChart(WebChartViewer0, 0)
    createChart(WebChartViewer1, 1)
    createChart(WebChartViewer2, 2)
    createChart(WebChartViewer3, 3)

End Sub

</script>

<html>
<body>
    <chart:WebChartViewer id="WebChartViewer0" runat="server" />
    <chart:WebChartViewer id="WebChartViewer1" runat="server" />
    <chart:WebChartViewer id="WebChartViewer2" runat="server" />
    <chart:WebChartViewer id="WebChartViewer3" runat="server" />
</body>
</html>

[ASP.NET MVC - Controller] NetMvcCharts\Controllers\HbarmeterorientationController.cs
using System;
using System.Web.Mvc;
using ChartDirector;

namespace NetMvcCharts.Controllers
{
    public class HbarmeterorientationController : Controller
    {
        //
        // Default Action
        //
        public ActionResult Index()
        {
            ViewBag.Title = "H-Bar Meter Orientation";

            // This example contains 4 charts.
            ViewBag.Viewer = new RazorChartViewer[4];
            for (int i = 0; i < ViewBag.Viewer.Length; ++i)
                createChart(ViewBag.Viewer[i] = new RazorChartViewer(HttpContext, "chart" + i), i);

            return View("~/Views/Shared/ChartView.cshtml");
        }

        //
        // Create chart
        //
        private void createChart(RazorChartViewer viewer, 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.
                ChartDirector.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.
                ChartDirector.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
            viewer.Image = m.makeWebImage(Chart.PNG);
        }
    }
}

[ASP.NET MVC - View] NetMvcCharts\Views\Shared\ChartView.cshtml
@{ Layout = null; }

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>@ViewBag.Title</title>
</head>
<body style="margin:5px 0px 0px 5px">
    <div style="font:bold 18pt verdana;">
        @ViewBag.Title
    </div>
    <hr style="border:solid 1px #000080" />
    <div>
        @{
            if (ViewBag.Viewer is Array)
            {
                // Display multiple charts
                for (int i = 0; i < ViewBag.Viewer.Length; ++i)
                {
                    @:@Html.Raw(ViewBag.Viewer[i].RenderHTML())
                }
            }
            else
            {
                // Display one chart only
                @:@Html.Raw(ViewBag.Viewer.RenderHTML())
            }
        }
    </div>
</body>
</html>