ChartDirector 6.2 (.NET Edition)

Enhanced Area Chart




This example extends the Simple Area Chart example by decorating the chart using a number of chart formatting features.

Source Code Listing

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

namespace CSharpChartExplorer
{
    public class enhancedarea : DemoModule
    {
        //Name of demo module
        public string getName() { return "Enhanced Area Chart"; }

        //Number of charts produced in this demo module
        public int getNoOfCharts() { return 1; }

        //Main code for creating chart.
        //Note: the argument chartIndex is unused because this demo only has 1 chart.
        public void createChart(WinChartViewer viewer, int chartIndex)
        {
            // The data for the area chart
            double[] data = {30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55, 53, 35,
                50, 66, 56, 48, 52, 65, 62};

            // The labels for the area chart
            string[] labels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12",
                "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"};

            // Create a XYChart object of size 600 x 360 pixels, with a brushed silver background, 1
            // pixel 3D border effect, rounded corners and soft drop shadow.
            XYChart c = new XYChart(600, 360, Chart.brushedSilverColor(), Chart.Transparent, 1);
            c.setRoundedFrame();
            c.setDropShadow();

            // Add a title box to the chart using 18pt Times Bold Italic font.
            ChartDirector.TextBox title = c.addTitle(
                "<*block,valign=absmiddle*><*img=star.png*><*img=star.png*> Performance Enhancer " +
                "<*img=star.png*><*img=star.png*><*/*>", "Times New Roman Bold Italic", 18);

            //
            // Use a text box with a depressed 3D border to create the inner depressed region
            //

            // The width of the frame border
            int frameWidth = 5;

            // Set the depressed region position
            ChartDirector.TextBox contentBox = c.addText(frameWidth, title.getHeight(), "");
            contentBox.setSize(c.getDrawArea().getWidth() - 1 - frameWidth * 2, c.getDrawArea(
                ).getHeight() - title.getHeight() - frameWidth - 1);

            // Use -1 as the rasied effect to create a depressed region
            contentBox.setBackground(Chart.Transparent, Chart.Transparent, -1);

            // Set rounded corners, and put the text box at the back of the chart
            contentBox.setRoundedCorners(10);
            contentBox.setZOrder(Chart.ChartBackZ);

            // Tentatively set the plotarea to 50 pixels from the left depressed edge, and 25 pixels
            // under the top depressed edge. Set the width to 75 pixels less than the depressed
            // region width, and the height to 75 pixels less than the depressed region height. Use
            // white (ffffff) background, transparent border, and grey (cccccc) horizontal and
            // vertical grid lines.
            PlotArea plotArea = c.setPlotArea(50 + contentBox.getLeftX(), contentBox.getTopY() + 25,
                contentBox.getWidth() - 75, contentBox.getHeight() - 75, 0xffffff, -1, -1, 0xcccccc,
                -1);

            // Add a title to the y axis
            c.yAxis().setTitle("Energy Concentration (KJ per liter)");

            // Set the labels on the x axis.
            c.xAxis().setLabels(labels);

            // Display 1 out of 3 labels on the x-axis.
            c.xAxis().setLabelStep(3);

            // Add a title to the x axis using CDML
            c.xAxis().setTitle(
                "<*block,valign=absmiddle*><*img=clock.png*>  Elapsed Time (hour)<*/*>");

            // Set the axes width to 2 pixels
            c.xAxis().setWidth(2);
            c.yAxis().setWidth(2);

            // Add an area layer to the chart using a gradient color that changes vertically from
            // semi-transparent red (60ff0000) to semi-transparent white (60ffffff)
            c.addAreaLayer(data, c.linearGradientColor(0, contentBox.getTopY() + 20, 0,
                contentBox.getTopY() + contentBox.getHeight() - 50, 0x60ff0000, 0x60ffffff));

            // Adjust the plot area size, such that the bounding box (inclusive of axes) is 15
            // pixels from the left depressed edge, 25 pixels below the top depressed edge, 25
            // pixels from the right depressed edge, and 15 pixels above the bottom depressed edge.
            c.packPlotArea(contentBox.getLeftX() + 15, contentBox.getTopY() + 25,
                contentBox.getLeftX() + contentBox.getWidth() - 25, contentBox.getTopY() +
                contentBox.getHeight() - 15);

            // Add a custom CDML text with the bottom right corner is anchored to the bootom right
            // corner of the plot area, with 5 pixels margin.
            c.addText(plotArea.getLeftX() + plotArea.getWidth() - 5, plotArea.getTopY() +
                plotArea.getHeight() - 5,
                "<*block,valign=absmiddle*><*img=small_molecule.png*> <*block*><*font=Times New " +
                "Roman Bold Italic,size=10,color=804040*>Molecular\nEngineering<*/*>").setAlignment(
                Chart.BottomRight);

            // Output the chart
            viewer.Chart = c;

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='Hour {xLabel}: {value} KJ/liter'");
        }
    }
}

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

Public Class enhancedarea
    Implements DemoModule

    'Name of demo module
    Public Function getName() As String Implements DemoModule.getName
        Return "Enhanced Area Chart"
    End Function

    'Number of charts produced in this demo module
    Public Function getNoOfCharts() As Integer Implements DemoModule.getNoOfCharts
        Return 1
    End Function

    'Main code for creating chart.
    'Note: the argument chartIndex is unused because this demo only has 1 chart.
    Public Sub createChart(viewer As WinChartViewer, chartIndex As Integer) _
        Implements DemoModule.createChart

        ' The data for the area chart
        Dim data() As Double = {30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55, _
            53, 35, 50, 66, 56, 48, 52, 65, 62}

        ' The labels for the area chart
        Dim labels() As String = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", _
            "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"}

        ' Create a XYChart object of size 600 x 360 pixels, with a brushed silver background, 1
        ' pixel 3D border effect, rounded corners and soft drop shadow.
        Dim c As XYChart = New XYChart(600, 360, Chart.brushedSilverColor(), Chart.Transparent, 1)
        c.setRoundedFrame()
        c.setDropShadow()

        ' Add a title box to the chart using 18pt Times Bold Italic font.
        Dim title As ChartDirector.TextBox = c.addTitle( _
            "<*block,valign=absmiddle*><*img=star.png*><*img=star.png*> Performance Enhancer " & _
            "<*img=star.png*><*img=star.png*><*/*>", "Times New Roman Bold Italic", 18)

        '
        ' Use a text box with a depressed 3D border to create the inner depressed region
        '

        ' The width of the frame border
        Dim frameWidth As Integer = 5

        ' Set the depressed region position
        Dim contentBox As ChartDirector.TextBox = c.addText(frameWidth, title.getHeight(), "")
        contentBox.setSize(c.getDrawArea().getWidth() - 1 - frameWidth * 2, c.getDrawArea( _
            ).getHeight() - title.getHeight() - frameWidth - 1)

        ' Use -1 as the rasied effect to create a depressed region
        contentBox.setBackground(Chart.Transparent, Chart.Transparent, -1)

        ' Set rounded corners, and put the text box at the back of the chart
        contentBox.setRoundedCorners(10)
        contentBox.setZOrder(Chart.ChartBackZ)

        ' Tentatively set the plotarea to 50 pixels from the left depressed edge, and 25 pixels
        ' under the top depressed edge. Set the width to 75 pixels less than the depressed region
        ' width, and the height to 75 pixels less than the depressed region height. Use white
        ' (ffffff) background, transparent border, and grey (cccccc) horizontal and vertical grid
        ' lines.
        Dim plotArea As PlotArea = c.setPlotArea(50 + contentBox.getLeftX(), contentBox.getTopY() _
             + 25, contentBox.getWidth() - 75, contentBox.getHeight() - 75, &Hffffff, -1, -1, _
            &Hcccccc, -1)

        ' Add a title to the y axis
        c.yAxis().setTitle("Energy Concentration (KJ per liter)")

        ' Set the labels on the x axis.
        c.xAxis().setLabels(labels)

        ' Display 1 out of 3 labels on the x-axis.
        c.xAxis().setLabelStep(3)

        ' Add a title to the x axis using CDML
        c.xAxis().setTitle("<*block,valign=absmiddle*><*img=clock.png*>  Elapsed Time (hour)<*/*>")

        ' Set the axes width to 2 pixels
        c.xAxis().setWidth(2)
        c.yAxis().setWidth(2)

        ' Add an area layer to the chart using a gradient color that changes vertically from
        ' semi-transparent red (60ff0000) to semi-transparent white (60ffffff)
        c.addAreaLayer(data, c.linearGradientColor(0, contentBox.getTopY() + 20, 0, _
            contentBox.getTopY() + contentBox.getHeight() - 50, &H60ff0000, &H60ffffff))

        ' Adjust the plot area size, such that the bounding box (inclusive of axes) is 15 pixels
        ' from the left depressed edge, 25 pixels below the top depressed edge, 25 pixels from the
        ' right depressed edge, and 15 pixels above the bottom depressed edge.
        c.packPlotArea(contentBox.getLeftX() + 15, contentBox.getTopY() + 25, contentBox.getLeftX( _
            ) + contentBox.getWidth() - 25, contentBox.getTopY() + contentBox.getHeight() - 15)

        ' Add a custom CDML text with the bottom right corner is anchored to the bootom right corner
        ' of the plot area, with 5 pixels margin.
        c.addText(plotArea.getLeftX() + plotArea.getWidth() - 5, plotArea.getTopY() + _
            plotArea.getHeight() - 5, _
            "<*block,valign=absmiddle*><*img=small_molecule.png*> <*block*><*font=Times New " & _
            "Roman Bold Italic,size=10,color=804040*>Molecular<*br*>Engineering<*/*>" _
            ).setAlignment(Chart.BottomRight)

        ' Output the chart
        viewer.Chart = c

        'include tool tip for the chart
        viewer.ImageMap = c.getHTMLImageMap("clickable", "", _
            "title='Hour {xLabel}: {value} KJ/liter'")

    End Sub

End Class

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

namespace CSharpWPFDemo
{
    public class enhancedarea : DemoModule
    {
        //Name of demo module
        public string getName() { return "Enhanced Area Chart"; }

        //Number of charts produced in this demo module
        public int getNoOfCharts() { return 1; }

        //Main code for creating chart.
        //Note: the argument chartIndex is unused because this demo only has 1 chart.
        public void createChart(WPFChartViewer viewer, int chartIndex)
        {
            // The data for the area chart
            double[] data = {30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55, 53, 35,
                50, 66, 56, 48, 52, 65, 62};

            // The labels for the area chart
            string[] labels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12",
                "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"};

            // Create a XYChart object of size 600 x 360 pixels, with a brushed silver background, 1
            // pixel 3D border effect, rounded corners and soft drop shadow.
            XYChart c = new XYChart(600, 360, Chart.brushedSilverColor(), Chart.Transparent, 1);
            c.setRoundedFrame();
            c.setDropShadow();

            // Add a title box to the chart using 18pt Times Bold Italic font.
            ChartDirector.TextBox title = c.addTitle(
                "<*block,valign=absmiddle*><*img=star.png*><*img=star.png*> Performance Enhancer " +
                "<*img=star.png*><*img=star.png*><*/*>", "Times New Roman Bold Italic", 18);

            //
            // Use a text box with a depressed 3D border to create the inner depressed region
            //

            // The width of the frame border
            int frameWidth = 5;

            // Set the depressed region position
            ChartDirector.TextBox contentBox = c.addText(frameWidth, title.getHeight(), "");
            contentBox.setSize(c.getDrawArea().getWidth() - 1 - frameWidth * 2, c.getDrawArea(
                ).getHeight() - title.getHeight() - frameWidth - 1);

            // Use -1 as the rasied effect to create a depressed region
            contentBox.setBackground(Chart.Transparent, Chart.Transparent, -1);

            // Set rounded corners, and put the text box at the back of the chart
            contentBox.setRoundedCorners(10);
            contentBox.setZOrder(Chart.ChartBackZ);

            // Tentatively set the plotarea to 50 pixels from the left depressed edge, and 25 pixels
            // under the top depressed edge. Set the width to 75 pixels less than the depressed
            // region width, and the height to 75 pixels less than the depressed region height. Use
            // white (ffffff) background, transparent border, and grey (cccccc) horizontal and
            // vertical grid lines.
            PlotArea plotArea = c.setPlotArea(50 + contentBox.getLeftX(), contentBox.getTopY() + 25,
                contentBox.getWidth() - 75, contentBox.getHeight() - 75, 0xffffff, -1, -1, 0xcccccc,
                -1);

            // Add a title to the y axis
            c.yAxis().setTitle("Energy Concentration (KJ per liter)");

            // Set the labels on the x axis.
            c.xAxis().setLabels(labels);

            // Display 1 out of 3 labels on the x-axis.
            c.xAxis().setLabelStep(3);

            // Add a title to the x axis using CDML
            c.xAxis().setTitle(
                "<*block,valign=absmiddle*><*img=clock.png*>  Elapsed Time (hour)<*/*>");

            // Set the axes width to 2 pixels
            c.xAxis().setWidth(2);
            c.yAxis().setWidth(2);

            // Add an area layer to the chart using a gradient color that changes vertically from
            // semi-transparent red (60ff0000) to semi-transparent white (60ffffff)
            c.addAreaLayer(data, c.linearGradientColor(0, contentBox.getTopY() + 20, 0,
                contentBox.getTopY() + contentBox.getHeight() - 50, 0x60ff0000, 0x60ffffff));

            // Adjust the plot area size, such that the bounding box (inclusive of axes) is 15
            // pixels from the left depressed edge, 25 pixels below the top depressed edge, 25
            // pixels from the right depressed edge, and 15 pixels above the bottom depressed edge.
            c.packPlotArea(contentBox.getLeftX() + 15, contentBox.getTopY() + 25,
                contentBox.getLeftX() + contentBox.getWidth() - 25, contentBox.getTopY() +
                contentBox.getHeight() - 15);

            // Add a custom CDML text with the bottom right corner is anchored to the bootom right
            // corner of the plot area, with 5 pixels margin.
            c.addText(plotArea.getLeftX() + plotArea.getWidth() - 5, plotArea.getTopY() +
                plotArea.getHeight() - 5,
                "<*block,valign=absmiddle*><*img=small_molecule.png*> <*block*><*font=Times New " +
                "Roman Bold Italic,size=10,color=804040*>Molecular\nEngineering<*/*>").setAlignment(
                Chart.BottomRight);

            // Output the chart
            viewer.Chart = c;

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='Hour {xLabel}: {value} KJ/liter'");
        }
    }
}

[ASP.NET Web Forms - C# version] NetWebCharts\CSharpASP\enhancedarea.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">

//
// Page Load event handler
//
protected void Page_Load(object sender, EventArgs e)
{
    // The data for the area chart
    double[] data = {30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55, 53, 35, 50, 66,
        56, 48, 52, 65, 62};

    // The labels for the area chart
    string[] labels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13",
        "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"};

    // Create a XYChart object of size 600 x 360 pixels, with a brushed silver background, 1 pixel
    // 3D border effect, rounded corners and soft drop shadow.
    XYChart c = new XYChart(600, 360, Chart.brushedSilverColor(), Chart.Transparent, 1);
    c.setRoundedFrame();
    c.setDropShadow();

    //Set default directory for loading images from current script directory
    c.setSearchPath(Server.MapPath("."));

    // Add a title box to the chart using 18pt Times Bold Italic font.
    ChartDirector.TextBox title = c.addTitle(
        "<*block,valign=absmiddle*><*img=star.png*><*img=star.png*> Performance Enhancer " +
        "<*img=star.png*><*img=star.png*><*/*>", "Times New Roman Bold Italic", 18);

    //
    // Use a text box with a depressed 3D border to create the inner depressed region
    //

    // The width of the frame border
    int frameWidth = 5;

    // Set the depressed region position
    ChartDirector.TextBox contentBox = c.addText(frameWidth, title.getHeight(), "");
    contentBox.setSize(c.getDrawArea().getWidth() - 1 - frameWidth * 2, c.getDrawArea().getHeight()
         - title.getHeight() - frameWidth - 1);

    // Use -1 as the rasied effect to create a depressed region
    contentBox.setBackground(Chart.Transparent, Chart.Transparent, -1);

    // Set rounded corners, and put the text box at the back of the chart
    contentBox.setRoundedCorners(10);
    contentBox.setZOrder(Chart.ChartBackZ);

    // Tentatively set the plotarea to 50 pixels from the left depressed edge, and 25 pixels under
    // the top depressed edge. Set the width to 75 pixels less than the depressed region width, and
    // the height to 75 pixels less than the depressed region height. Use white (ffffff) background,
    // transparent border, and grey (cccccc) horizontal and vertical grid lines.
    PlotArea plotArea = c.setPlotArea(50 + contentBox.getLeftX(), contentBox.getTopY() + 25,
        contentBox.getWidth() - 75, contentBox.getHeight() - 75, 0xffffff, -1, -1, 0xcccccc, -1);

    // Add a title to the y axis
    c.yAxis().setTitle("Energy Concentration (KJ per liter)");

    // Set the labels on the x axis.
    c.xAxis().setLabels(labels);

    // Display 1 out of 3 labels on the x-axis.
    c.xAxis().setLabelStep(3);

    // Add a title to the x axis using CDML
    c.xAxis().setTitle("<*block,valign=absmiddle*><*img=clock.png*>  Elapsed Time (hour)<*/*>");

    // Set the axes width to 2 pixels
    c.xAxis().setWidth(2);
    c.yAxis().setWidth(2);

    // Add an area layer to the chart using a gradient color that changes vertically from
    // semi-transparent red (60ff0000) to semi-transparent white (60ffffff)
    c.addAreaLayer(data, c.linearGradientColor(0, contentBox.getTopY() + 20, 0, contentBox.getTopY()
         + contentBox.getHeight() - 50, 0x60ff0000, 0x60ffffff));

    // Adjust the plot area size, such that the bounding box (inclusive of axes) is 15 pixels from
    // the left depressed edge, 25 pixels below the top depressed edge, 25 pixels from the right
    // depressed edge, and 15 pixels above the bottom depressed edge.
    c.packPlotArea(contentBox.getLeftX() + 15, contentBox.getTopY() + 25, contentBox.getLeftX() +
        contentBox.getWidth() - 25, contentBox.getTopY() + contentBox.getHeight() - 15);

    // Add a custom CDML text with the bottom right corner is anchored to the bootom right corner of
    // the plot area, with 5 pixels margin.
    c.addText(plotArea.getLeftX() + plotArea.getWidth() - 5, plotArea.getTopY() +
        plotArea.getHeight() - 5,
        "<*block,valign=absmiddle*><*img=small_molecule.png*> <*block*><*font=Times New Roman " +
        "Bold Italic,size=10,color=804040*>Molecular\nEngineering<*/*>").setAlignment(
        Chart.BottomRight);

    // Output the chart
    WebChartViewer1.Image = c.makeWebImage(Chart.JPG);

    // Include tool tip for the chart
    WebChartViewer1.ImageMap = c.getHTMLImageMap("", "", "title='Hour {xLabel}: {value} KJ/liter'");
}

</script>

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

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\enhancedarea.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">

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

    ' The data for the area chart
    Dim data() As Double = {30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55, 53, _
        35, 50, 66, 56, 48, 52, 65, 62}

    ' The labels for the area chart
    Dim labels() As String = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", _
        "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"}

    ' Create a XYChart object of size 600 x 360 pixels, with a brushed silver background, 1 pixel 3D
    ' border effect, rounded corners and soft drop shadow.
    Dim c As XYChart = New XYChart(600, 360, Chart.brushedSilverColor(), Chart.Transparent, 1)
    c.setRoundedFrame()
    c.setDropShadow()

    ' Set default directory for loading images from current script directory
    Call c.setSearchPath(Server.MapPath("."))

    ' Add a title box to the chart using 18pt Times Bold Italic font.
    Dim title As ChartDirector.TextBox = c.addTitle( _
        "<*block,valign=absmiddle*><*img=star.png*><*img=star.png*> Performance Enhancer " & _
        "<*img=star.png*><*img=star.png*><*/*>", "Times New Roman Bold Italic", 18)

    '
    ' Use a text box with a depressed 3D border to create the inner depressed region
    '

    ' The width of the frame border
    Dim frameWidth As Integer = 5

    ' Set the depressed region position
    Dim contentBox As ChartDirector.TextBox = c.addText(frameWidth, title.getHeight(), "")
    contentBox.setSize(c.getDrawArea().getWidth() - 1 - frameWidth * 2, c.getDrawArea().getHeight( _
        ) - title.getHeight() - frameWidth - 1)

    ' Use -1 as the rasied effect to create a depressed region
    contentBox.setBackground(Chart.Transparent, Chart.Transparent, -1)

    ' Set rounded corners, and put the text box at the back of the chart
    contentBox.setRoundedCorners(10)
    contentBox.setZOrder(Chart.ChartBackZ)

    ' Tentatively set the plotarea to 50 pixels from the left depressed edge, and 25 pixels under
    ' the top depressed edge. Set the width to 75 pixels less than the depressed region width, and
    ' the height to 75 pixels less than the depressed region height. Use white (ffffff) background,
    ' transparent border, and grey (cccccc) horizontal and vertical grid lines.
    Dim plotArea As PlotArea = c.setPlotArea(50 + contentBox.getLeftX(), contentBox.getTopY() + _
        25, contentBox.getWidth() - 75, contentBox.getHeight() - 75, &Hffffff, -1, -1, &Hcccccc, _
        -1)

    ' Add a title to the y axis
    c.yAxis().setTitle("Energy Concentration (KJ per liter)")

    ' Set the labels on the x axis.
    c.xAxis().setLabels(labels)

    ' Display 1 out of 3 labels on the x-axis.
    c.xAxis().setLabelStep(3)

    ' Add a title to the x axis using CDML
    c.xAxis().setTitle("<*block,valign=absmiddle*><*img=clock.png*>  Elapsed Time (hour)<*/*>")

    ' Set the axes width to 2 pixels
    c.xAxis().setWidth(2)
    c.yAxis().setWidth(2)

    ' Add an area layer to the chart using a gradient color that changes vertically from
    ' semi-transparent red (60ff0000) to semi-transparent white (60ffffff)
    c.addAreaLayer(data, c.linearGradientColor(0, contentBox.getTopY() + 20, 0, _
        contentBox.getTopY() + contentBox.getHeight() - 50, &H60ff0000, &H60ffffff))

    ' Adjust the plot area size, such that the bounding box (inclusive of axes) is 15 pixels from
    ' the left depressed edge, 25 pixels below the top depressed edge, 25 pixels from the right
    ' depressed edge, and 15 pixels above the bottom depressed edge.
    c.packPlotArea(contentBox.getLeftX() + 15, contentBox.getTopY() + 25, contentBox.getLeftX() + _
        contentBox.getWidth() - 25, contentBox.getTopY() + contentBox.getHeight() - 15)

    ' Add a custom CDML text with the bottom right corner is anchored to the bootom right corner of
    ' the plot area, with 5 pixels margin.
    c.addText(plotArea.getLeftX() + plotArea.getWidth() - 5, plotArea.getTopY() + _
        plotArea.getHeight() - 5, _
        "<*block,valign=absmiddle*><*img=small_molecule.png*> <*block*><*font=Times New Roman " & _
        "Bold Italic,size=10,color=804040*>Molecular<*br*>Engineering<*/*>").setAlignment( _
        Chart.BottomRight)

    ' Output the chart
    WebChartViewer1.Image = c.makeWebImage(Chart.JPG)

    ' Include tool tip for the chart
    WebChartViewer1.ImageMap = c.getHTMLImageMap("", "", "title='Hour {xLabel}: {value} KJ/liter'")

End Sub

</script>

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

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

namespace NetMvcCharts.Controllers
{
    public class EnhancedareaController : Controller
    {
        //
        // Default Action
        //
        public ActionResult Index()
        {
            ViewBag.Title = "Enhanced Area Chart";
            createChart(ViewBag.Viewer = new RazorChartViewer(HttpContext, "chart1"));
            return View("~/Views/Shared/ChartView.cshtml");
        }

        //
        // Create chart
        //
        private void createChart(RazorChartViewer viewer)
        {
            // The data for the area chart
            double[] data = {30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55, 53, 35, 50,
                66, 56, 48, 52, 65, 62};

            // The labels for the area chart
            string[] labels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13",
                "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"};

            // Create a XYChart object of size 600 x 360 pixels, with a brushed silver background, 1
            // pixel 3D border effect, rounded corners and soft drop shadow.
            XYChart c = new XYChart(600, 360, Chart.brushedSilverColor(), Chart.Transparent, 1);
            c.setRoundedFrame();
            c.setDropShadow();

            //Set default directory for loading images
            c.setSearchPath(Url.Content("~/Content"));

            // Add a title box to the chart using 18pt Times Bold Italic font.
            ChartDirector.TextBox title = c.addTitle(
                "<*block,valign=absmiddle*><*img=star.png*><*img=star.png*> Performance Enhancer " +
                "<*img=star.png*><*img=star.png*><*/*>", "Times New Roman Bold Italic", 18);

            //
            // Use a text box with a depressed 3D border to create the inner depressed region
            //

            // The width of the frame border
            int frameWidth = 5;

            // Set the depressed region position
            ChartDirector.TextBox contentBox = c.addText(frameWidth, title.getHeight(), "");
            contentBox.setSize(c.getDrawArea().getWidth() - 1 - frameWidth * 2, c.getDrawArea(
                ).getHeight() - title.getHeight() - frameWidth - 1);

            // Use -1 as the rasied effect to create a depressed region
            contentBox.setBackground(Chart.Transparent, Chart.Transparent, -1);

            // Set rounded corners, and put the text box at the back of the chart
            contentBox.setRoundedCorners(10);
            contentBox.setZOrder(Chart.ChartBackZ);

            // Tentatively set the plotarea to 50 pixels from the left depressed edge, and 25 pixels
            // under the top depressed edge. Set the width to 75 pixels less than the depressed region
            // width, and the height to 75 pixels less than the depressed region height. Use white
            // (ffffff) background, transparent border, and grey (cccccc) horizontal and vertical grid
            // lines.
            PlotArea plotArea = c.setPlotArea(50 + contentBox.getLeftX(), contentBox.getTopY() + 25,
                contentBox.getWidth() - 75, contentBox.getHeight() - 75, 0xffffff, -1, -1, 0xcccccc, -1);

            // Add a title to the y axis
            c.yAxis().setTitle("Energy Concentration (KJ per liter)");

            // Set the labels on the x axis.
            c.xAxis().setLabels(labels);

            // Display 1 out of 3 labels on the x-axis.
            c.xAxis().setLabelStep(3);

            // Add a title to the x axis using CDML
            c.xAxis().setTitle("<*block,valign=absmiddle*><*img=clock.png*>  Elapsed Time (hour)<*/*>");

            // Set the axes width to 2 pixels
            c.xAxis().setWidth(2);
            c.yAxis().setWidth(2);

            // Add an area layer to the chart using a gradient color that changes vertically from
            // semi-transparent red (60ff0000) to semi-transparent white (60ffffff)
            c.addAreaLayer(data, c.linearGradientColor(0, contentBox.getTopY() + 20, 0,
                contentBox.getTopY() + contentBox.getHeight() - 50, 0x60ff0000, 0x60ffffff));

            // Adjust the plot area size, such that the bounding box (inclusive of axes) is 15 pixels
            // from the left depressed edge, 25 pixels below the top depressed edge, 25 pixels from the
            // right depressed edge, and 15 pixels above the bottom depressed edge.
            c.packPlotArea(contentBox.getLeftX() + 15, contentBox.getTopY() + 25, contentBox.getLeftX() +
                contentBox.getWidth() - 25, contentBox.getTopY() + contentBox.getHeight() - 15);

            // Add a custom CDML text with the bottom right corner is anchored to the bootom right corner
            // of the plot area, with 5 pixels margin.
            c.addText(plotArea.getLeftX() + plotArea.getWidth() - 5, plotArea.getTopY() +
                plotArea.getHeight() - 5,
                "<*block,valign=absmiddle*><*img=small_molecule.png*> <*block*><*font=Times New Roman " +
                "Bold Italic,size=10,color=804040*>Molecular\nEngineering<*/*>").setAlignment(
                Chart.BottomRight);

            // Output the chart
            viewer.Image = c.makeWebImage(Chart.JPG);

            // Include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("", "", "title='Hour {xLabel}: {value} KJ/liter'");
        }
    }
}

[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>