ChartDirector 6.2 (.NET Edition)

Pattern Area Chart




This example demonstrates using a pattern for filling the area in an area chart, together with a number of chart formatting features.

Source Code Listing

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

namespace CSharpChartExplorer
{
    public class patternarea : DemoModule
    {
        //Name of demo module
        public string getName() { return "Pattern 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 = {3.0, 2.8, 4.0, 5.5, 7.5, 6.8, 5.4, 6.0, 5.0, 6.2, 7.5, 6.5, 7.5, 8.1,
                6.0, 5.5, 5.3, 3.5, 5.0, 6.6, 5.6, 4.8, 5.2, 6.5, 6.2};

            // 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 300 x 180 pixels. Set the background to pale yellow
            // (0xffffa0) with a black border (0x0)
            XYChart c = new XYChart(300, 180, 0xffffa0, 0x000000);

            // Set the plotarea at (45, 35) and of size 240 x 120 pixels. Set the background to
            // white (0xffffff). Set both horizontal and vertical grid lines to black (&H0&) dotted
            // lines (pattern code 0x0103)
            c.setPlotArea(45, 35, 240, 120, 0xffffff, -1, -1, c.dashLineColor(0x000000, 0x000103),
                c.dashLineColor(0x000000, 0x000103));

            // Add a title to the chart using 10pt Arial Bold font. Use a 1 x 2 bitmap pattern as
            // the background. Set the border to black (0x0).
            c.addTitle("Snow Percipitation (Dec 12)", "Arial Bold", 10).setBackground(
                c.patternColor(new int[] {0xb0b0f0, 0xe0e0ff}, 2), 0x000000);

            // Add a title to the y axis
            c.yAxis().setTitle("mm per hour");

            // 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 an area layer to the chart
            AreaLayer layer = c.addAreaLayer();

            // Load a snow pattern from an external file "snow.png".
            int snowPattern = c.patternColor2("snow.png");

            // Add a data set to the area layer using the snow pattern as the fill color. Use deep
            // blue (0x0000ff) as the area border line color (&H0000ff&)
            layer.addDataSet(data).setDataColor(snowPattern, 0x0000ff);

            // Set the line width to 2 pixels to highlight the line
            layer.setLineWidth(2);

            // Output the chart
            viewer.Chart = c;

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='{xLabel}:00 - {value} mm/hour'");
        }
    }
}

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

Public Class patternarea
    Implements DemoModule

    'Name of demo module
    Public Function getName() As String Implements DemoModule.getName
        Return "Pattern 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 = {3.0, 2.8, 4.0, 5.5, 7.5, 6.8, 5.4, 6.0, 5.0, 6.2, 7.5, 6.5, 7.5, _
            8.1, 6.0, 5.5, 5.3, 3.5, 5.0, 6.6, 5.6, 4.8, 5.2, 6.5, 6.2}

        ' 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 300 x 180 pixels. Set the background to pale yellow
        ' (0xffffa0) with a black border (0x0)
        Dim c As XYChart = New XYChart(300, 180, &Hffffa0, &H000000)

        ' Set the plotarea at (45, 35) and of size 240 x 120 pixels. Set the background to white
        ' (0xffffff). Set both horizontal and vertical grid lines to black (&H0&) dotted lines
        ' (pattern code 0x0103)
        c.setPlotArea(45, 35, 240, 120, &Hffffff, -1, -1, c.dashLineColor(&H000000, &H000103), _
            c.dashLineColor(&H000000, &H000103))

        ' Add a title to the chart using 10pt Arial Bold font. Use a 1 x 2 bitmap pattern as the
        ' background. Set the border to black (0x0).
        c.addTitle("Snow Percipitation (Dec 12)", "Arial Bold", 10).setBackground(c.patternColor( _
            New Integer() {&Hb0b0f0, &He0e0ff}, 2), &H000000)

        ' Add a title to the y axis
        c.yAxis().setTitle("mm per hour")

        ' 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 an area layer to the chart
        Dim layer As AreaLayer = c.addAreaLayer()

        ' Load a snow pattern from an external file "snow.png".
        Dim snowPattern As Integer = c.patternColor2("snow.png")

        ' Add a data set to the area layer using the snow pattern as the fill color. Use deep blue
        ' (0x0000ff) as the area border line color (&H0000ff&)
        layer.addDataSet(data).setDataColor(snowPattern, &H0000ff)

        ' Set the line width to 2 pixels to highlight the line
        layer.setLineWidth(2)

        ' Output the chart
        viewer.Chart = c

        'include tool tip for the chart
        viewer.ImageMap = c.getHTMLImageMap("clickable", "", _
            "title='{xLabel}:00 - {value} mm/hour'")

    End Sub

End Class

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

namespace CSharpWPFDemo
{
    public class patternarea : DemoModule
    {
        //Name of demo module
        public string getName() { return "Pattern 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 = {3.0, 2.8, 4.0, 5.5, 7.5, 6.8, 5.4, 6.0, 5.0, 6.2, 7.5, 6.5, 7.5, 8.1,
                6.0, 5.5, 5.3, 3.5, 5.0, 6.6, 5.6, 4.8, 5.2, 6.5, 6.2};

            // 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 300 x 180 pixels. Set the background to pale yellow
            // (0xffffa0) with a black border (0x0)
            XYChart c = new XYChart(300, 180, 0xffffa0, 0x000000);

            // Set the plotarea at (45, 35) and of size 240 x 120 pixels. Set the background to
            // white (0xffffff). Set both horizontal and vertical grid lines to black (&H0&) dotted
            // lines (pattern code 0x0103)
            c.setPlotArea(45, 35, 240, 120, 0xffffff, -1, -1, c.dashLineColor(0x000000, 0x000103),
                c.dashLineColor(0x000000, 0x000103));

            // Add a title to the chart using 10pt Arial Bold font. Use a 1 x 2 bitmap pattern as
            // the background. Set the border to black (0x0).
            c.addTitle("Snow Percipitation (Dec 12)", "Arial Bold", 10).setBackground(
                c.patternColor(new int[] {0xb0b0f0, 0xe0e0ff}, 2), 0x000000);

            // Add a title to the y axis
            c.yAxis().setTitle("mm per hour");

            // 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 an area layer to the chart
            AreaLayer layer = c.addAreaLayer();

            // Load a snow pattern from an external file "snow.png".
            int snowPattern = c.patternColor2("snow.png");

            // Add a data set to the area layer using the snow pattern as the fill color. Use deep
            // blue (0x0000ff) as the area border line color (&H0000ff&)
            layer.addDataSet(data).setDataColor(snowPattern, 0x0000ff);

            // Set the line width to 2 pixels to highlight the line
            layer.setLineWidth(2);

            // Output the chart
            viewer.Chart = c;

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='{xLabel}:00 - {value} mm/hour'");
        }
    }
}

[ASP.NET Web Forms - C# version] NetWebCharts\CSharpASP\patternarea.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 = {3.0, 2.8, 4.0, 5.5, 7.5, 6.8, 5.4, 6.0, 5.0, 6.2, 7.5, 6.5, 7.5, 8.1, 6.0, 5.5,
        5.3, 3.5, 5.0, 6.6, 5.6, 4.8, 5.2, 6.5, 6.2};

    // 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 300 x 180 pixels. Set the background to pale yellow
    // (0xffffa0) with a black border (0x0)
    XYChart c = new XYChart(300, 180, 0xffffa0, 0x000000);

    // Set the plotarea at (45, 35) and of size 240 x 120 pixels. Set the background to white
    // (0xffffff). Set both horizontal and vertical grid lines to black (&H0&) dotted lines (pattern
    // code 0x0103)
    c.setPlotArea(45, 35, 240, 120, 0xffffff, -1, -1, c.dashLineColor(0x000000, 0x000103),
        c.dashLineColor(0x000000, 0x000103));

    // Add a title to the chart using 10pt Arial Bold font. Use a 1 x 2 bitmap pattern as the
    // background. Set the border to black (0x0).
    c.addTitle("Snow Percipitation (Dec 12)", "Arial Bold", 10).setBackground(c.patternColor(
        new int[] {0xb0b0f0, 0xe0e0ff}, 2), 0x000000);

    // Add a title to the y axis
    c.yAxis().setTitle("mm per hour");

    // 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 an area layer to the chart
    AreaLayer layer = c.addAreaLayer();

    // Load a snow pattern from an external file "snow.png".
    int snowPattern = c.patternColor2(Server.MapPath("snow.png"));

    // Add a data set to the area layer using the snow pattern as the fill color. Use deep blue
    // (0x0000ff) as the area border line color (&H0000ff&)
    layer.addDataSet(data).setDataColor(snowPattern, 0x0000ff);

    // Set the line width to 2 pixels to highlight the line
    layer.setLineWidth(2);

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

    // Include tool tip for the chart
    WebChartViewer1.ImageMap = c.getHTMLImageMap("", "", "title='{xLabel}:00 - {value} mm/hour'");
}

</script>

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

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\patternarea.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 = {3.0, 2.8, 4.0, 5.5, 7.5, 6.8, 5.4, 6.0, 5.0, 6.2, 7.5, 6.5, 7.5, 8.1, _
        6.0, 5.5, 5.3, 3.5, 5.0, 6.6, 5.6, 4.8, 5.2, 6.5, 6.2}

    ' 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 300 x 180 pixels. Set the background to pale yellow (0xffffa0)
    ' with a black border (0x0)
    Dim c As XYChart = New XYChart(300, 180, &Hffffa0, &H000000)

    ' Set the plotarea at (45, 35) and of size 240 x 120 pixels. Set the background to white
    ' (0xffffff). Set both horizontal and vertical grid lines to black (&H0&) dotted lines (pattern
    ' code 0x0103)
    c.setPlotArea(45, 35, 240, 120, &Hffffff, -1, -1, c.dashLineColor(&H000000, &H000103), _
        c.dashLineColor(&H000000, &H000103))

    ' Add a title to the chart using 10pt Arial Bold font. Use a 1 x 2 bitmap pattern as the
    ' background. Set the border to black (0x0).
    c.addTitle("Snow Percipitation (Dec 12)", "Arial Bold", 10).setBackground(c.patternColor( _
        New Integer() {&Hb0b0f0, &He0e0ff}, 2), &H000000)

    ' Add a title to the y axis
    c.yAxis().setTitle("mm per hour")

    ' 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 an area layer to the chart
    Dim layer As AreaLayer = c.addAreaLayer()

    ' Load a snow pattern from an external file "snow.png".
    Dim snowPattern As Integer = c.patternColor2(Server.MapPath("snow.png"))

    ' Add a data set to the area layer using the snow pattern as the fill color. Use deep blue
    ' (0x0000ff) as the area border line color (&H0000ff&)
    layer.addDataSet(data).setDataColor(snowPattern, &H0000ff)

    ' Set the line width to 2 pixels to highlight the line
    layer.setLineWidth(2)

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

    ' Include tool tip for the chart
    WebChartViewer1.ImageMap = c.getHTMLImageMap("", "", "title='{xLabel}:00 - {value} mm/hour'")

End Sub

</script>

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

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

namespace NetMvcCharts.Controllers
{
    public class PatternareaController : Controller
    {
        //
        // Default Action
        //
        public ActionResult Index()
        {
            ViewBag.Title = "Pattern 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 = {3.0, 2.8, 4.0, 5.5, 7.5, 6.8, 5.4, 6.0, 5.0, 6.2, 7.5, 6.5, 7.5, 8.1, 6.0,
                5.5, 5.3, 3.5, 5.0, 6.6, 5.6, 4.8, 5.2, 6.5, 6.2};

            // 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 300 x 180 pixels. Set the background to pale yellow
            // (0xffffa0) with a black border (0x0)
            XYChart c = new XYChart(300, 180, 0xffffa0, 0x000000);

            // Set the plotarea at (45, 35) and of size 240 x 120 pixels. Set the background to white
            // (0xffffff). Set both horizontal and vertical grid lines to black (&H0&) dotted lines
            // (pattern code 0x0103)
            c.setPlotArea(45, 35, 240, 120, 0xffffff, -1, -1, c.dashLineColor(0x000000, 0x000103),
                c.dashLineColor(0x000000, 0x000103));

            // Add a title to the chart using 10pt Arial Bold font. Use a 1 x 2 bitmap pattern as the
            // background. Set the border to black (0x0).
            c.addTitle("Snow Percipitation (Dec 12)", "Arial Bold", 10).setBackground(c.patternColor(
                new int[] {0xb0b0f0, 0xe0e0ff}, 2), 0x000000);

            // Add a title to the y axis
            c.yAxis().setTitle("mm per hour");

            // 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 an area layer to the chart
            AreaLayer layer = c.addAreaLayer();

            // Load a snow pattern from an external file "snow.png".
            int snowPattern = c.patternColor2(Url.Content("~/Content/snow.png"));

            // Add a data set to the area layer using the snow pattern as the fill color. Use deep blue
            // (0x0000ff) as the area border line color (&H0000ff&)
            layer.addDataSet(data).setDataColor(snowPattern, 0x0000ff);

            // Set the line width to 2 pixels to highlight the line
            layer.setLineWidth(2);

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

            // Include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("", "", "title='{xLabel}:00 - {value} mm/hour'");
        }
    }
}

[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>