ChartDirector 6.2 (.NET Edition)

Polar Line Chart




This example demonstrates a polar line chart, completed with data symbols and data labels.

Source Code Listing

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

namespace CSharpChartExplorer
{
    public class polarline : DemoModule
    {
        //Name of demo module
        public string getName() { return "Polar Line 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 chart
            double[] data0 = {90, 25, 40, 55, 68, 44, 79, 85, 50};
            double[] angles0 = {15, 60, 110, 180, 230, 260, 260, 310, 340};

            double[] data1 = {80, 91, 66, 80, 92, 87};
            double[] angles1 = {40, 65, 88, 110, 150, 200};

            // Create a PolarChart object of size 460 x 500 pixels, with a grey (e0e0e0) background
            // and 1 pixel 3D border
            PolarChart c = new PolarChart(460, 500, 0xe0e0e0, 0x000000, 1);

            // Add a title to the chart at the top left corner using 15pt Arial Bold Italic font.
            // Use a wood pattern as the title background.
            c.addTitle("Polar Line Chart Demo", "Arial Bold Italic", 15).setBackground(
                c.patternColor("wood.png"));

            // Set center of plot area at (230, 280) with radius 180 pixels, and white (ffffff)
            // background.
            c.setPlotArea(230, 280, 180, 0xffffff);

            // Set the grid style to circular grid, with grids below the chart layers
            c.setGridStyle(false, false);

            // Add a legend box at top-center of plot area (230, 35) using horizontal layout. Use
            // 10pt Arial Bold font, with 1 pixel 3D border effect.
            LegendBox b = c.addLegend(230, 35, false, "Arial Bold", 9);
            b.setAlignment(Chart.TopCenter);
            b.setBackground(Chart.Transparent, Chart.Transparent, 1);

            // Set angular axis as 0 - 360, with a spoke every 30 units
            c.angularAxis().setLinearScale(0, 360, 30);

            // Add a blue (0xff) line layer to the chart using (data0, angle0)
            PolarLineLayer layer0 = c.addLineLayer(data0, 0x0000ff, "Close Loop Line");
            layer0.setAngles(angles0);

            // Set the line width to 2 pixels
            layer0.setLineWidth(2);

            // Use 11 pixel triangle symbols for the data points
            layer0.setDataSymbol(Chart.TriangleSymbol, 11);

            // Enable data label and set its format
            layer0.setDataLabelFormat("({value},{angle})");

            // Set the data label text box with light blue (0x9999ff) backgruond color and 1 pixel
            // 3D border effect
            layer0.setDataLabelStyle().setBackground(0x9999ff, Chart.Transparent, 1);

            // Add a red (0xff0000) line layer to the chart using (data1, angle1)
            PolarLineLayer layer1 = c.addLineLayer(data1, 0xff0000, "Open Loop Line");
            layer1.setAngles(angles1);

            // Set the line width to 2 pixels
            layer1.setLineWidth(2);

            // Use 11 pixel diamond symbols for the data points
            layer1.setDataSymbol(Chart.DiamondSymbol, 11);

            // Set the line to open loop
            layer1.setCloseLoop(false);

            // Enable data label and set its format
            layer1.setDataLabelFormat("({value},{angle})");

            // Set the data label text box with light red (0xff9999) backgruond color and 1 pixel 3D
            // border effect
            layer1.setDataLabelStyle().setBackground(0xff9999, Chart.Transparent, 1);

            // Output the chart
            viewer.Chart = c;

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='[{dataSetName}] ({radius}, {angle})'");
        }
    }
}

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

Public Class polarline
    Implements DemoModule

    'Name of demo module
    Public Function getName() As String Implements DemoModule.getName
        Return "Polar Line 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 chart
        Dim data0() As Double = {90, 25, 40, 55, 68, 44, 79, 85, 50}
        Dim angles0() As Double = {15, 60, 110, 180, 230, 260, 260, 310, 340}

        Dim data1() As Double = {80, 91, 66, 80, 92, 87}
        Dim angles1() As Double = {40, 65, 88, 110, 150, 200}

        ' Create a PolarChart object of size 460 x 500 pixels, with a grey (e0e0e0) background and 1
        ' pixel 3D border
        Dim c As PolarChart = New PolarChart(460, 500, &He0e0e0, &H000000, 1)

        ' Add a title to the chart at the top left corner using 15pt Arial Bold Italic font. Use a
        ' wood pattern as the title background.
        c.addTitle("Polar Line Chart Demo", "Arial Bold Italic", 15).setBackground(c.patternColor( _
            "wood.png"))

        ' Set center of plot area at (230, 280) with radius 180 pixels, and white (ffffff)
        ' background.
        c.setPlotArea(230, 280, 180, &Hffffff)

        ' Set the grid style to circular grid, with grids below the chart layers
        c.setGridStyle(False, False)

        ' Add a legend box at top-center of plot area (230, 35) using horizontal layout. Use 10pt
        ' Arial Bold font, with 1 pixel 3D border effect.
        Dim b As LegendBox = c.addLegend(230, 35, False, "Arial Bold", 9)
        b.setAlignment(Chart.TopCenter)
        b.setBackground(Chart.Transparent, Chart.Transparent, 1)

        ' Set angular axis as 0 - 360, with a spoke every 30 units
        c.angularAxis().setLinearScale(0, 360, 30)

        ' Add a blue (0xff) line layer to the chart using (data0, angle0)
        Dim layer0 As PolarLineLayer = c.addLineLayer(data0, &H0000ff, "Close Loop Line")
        layer0.setAngles(angles0)

        ' Set the line width to 2 pixels
        layer0.setLineWidth(2)

        ' Use 11 pixel triangle symbols for the data points
        layer0.setDataSymbol(Chart.TriangleSymbol, 11)

        ' Enable data label and set its format
        layer0.setDataLabelFormat("({value},{angle})")

        ' Set the data label text box with light blue (0x9999ff) backgruond color and 1 pixel 3D
        ' border effect
        layer0.setDataLabelStyle().setBackground(&H9999ff, Chart.Transparent, 1)

        ' Add a red (0xff0000) line layer to the chart using (data1, angle1)
        Dim layer1 As PolarLineLayer = c.addLineLayer(data1, &Hff0000, "Open Loop Line")
        layer1.setAngles(angles1)

        ' Set the line width to 2 pixels
        layer1.setLineWidth(2)

        ' Use 11 pixel diamond symbols for the data points
        layer1.setDataSymbol(Chart.DiamondSymbol, 11)

        ' Set the line to open loop
        layer1.setCloseLoop(False)

        ' Enable data label and set its format
        layer1.setDataLabelFormat("({value},{angle})")

        ' Set the data label text box with light red (0xff9999) backgruond color and 1 pixel 3D
        ' border effect
        layer1.setDataLabelStyle().setBackground(&Hff9999, Chart.Transparent, 1)

        ' Output the chart
        viewer.Chart = c

        'include tool tip for the chart
        viewer.ImageMap = c.getHTMLImageMap("clickable", "", _
            "title='[{dataSetName}] ({radius}, {angle})'")

    End Sub

End Class

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

namespace CSharpWPFDemo
{
    public class polarline : DemoModule
    {
        //Name of demo module
        public string getName() { return "Polar Line 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 chart
            double[] data0 = {90, 25, 40, 55, 68, 44, 79, 85, 50};
            double[] angles0 = {15, 60, 110, 180, 230, 260, 260, 310, 340};

            double[] data1 = {80, 91, 66, 80, 92, 87};
            double[] angles1 = {40, 65, 88, 110, 150, 200};

            // Create a PolarChart object of size 460 x 500 pixels, with a grey (e0e0e0) background
            // and 1 pixel 3D border
            PolarChart c = new PolarChart(460, 500, 0xe0e0e0, 0x000000, 1);

            // Add a title to the chart at the top left corner using 15pt Arial Bold Italic font.
            // Use a wood pattern as the title background.
            c.addTitle("Polar Line Chart Demo", "Arial Bold Italic", 15).setBackground(
                c.patternColor("wood.png"));

            // Set center of plot area at (230, 280) with radius 180 pixels, and white (ffffff)
            // background.
            c.setPlotArea(230, 280, 180, 0xffffff);

            // Set the grid style to circular grid, with grids below the chart layers
            c.setGridStyle(false, false);

            // Add a legend box at top-center of plot area (230, 35) using horizontal layout. Use
            // 10pt Arial Bold font, with 1 pixel 3D border effect.
            LegendBox b = c.addLegend(230, 35, false, "Arial Bold", 9);
            b.setAlignment(Chart.TopCenter);
            b.setBackground(Chart.Transparent, Chart.Transparent, 1);

            // Set angular axis as 0 - 360, with a spoke every 30 units
            c.angularAxis().setLinearScale(0, 360, 30);

            // Add a blue (0xff) line layer to the chart using (data0, angle0)
            PolarLineLayer layer0 = c.addLineLayer(data0, 0x0000ff, "Close Loop Line");
            layer0.setAngles(angles0);

            // Set the line width to 2 pixels
            layer0.setLineWidth(2);

            // Use 11 pixel triangle symbols for the data points
            layer0.setDataSymbol(Chart.TriangleSymbol, 11);

            // Enable data label and set its format
            layer0.setDataLabelFormat("({value},{angle})");

            // Set the data label text box with light blue (0x9999ff) backgruond color and 1 pixel
            // 3D border effect
            layer0.setDataLabelStyle().setBackground(0x9999ff, Chart.Transparent, 1);

            // Add a red (0xff0000) line layer to the chart using (data1, angle1)
            PolarLineLayer layer1 = c.addLineLayer(data1, 0xff0000, "Open Loop Line");
            layer1.setAngles(angles1);

            // Set the line width to 2 pixels
            layer1.setLineWidth(2);

            // Use 11 pixel diamond symbols for the data points
            layer1.setDataSymbol(Chart.DiamondSymbol, 11);

            // Set the line to open loop
            layer1.setCloseLoop(false);

            // Enable data label and set its format
            layer1.setDataLabelFormat("({value},{angle})");

            // Set the data label text box with light red (0xff9999) backgruond color and 1 pixel 3D
            // border effect
            layer1.setDataLabelStyle().setBackground(0xff9999, Chart.Transparent, 1);

            // Output the chart
            viewer.Chart = c;

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='[{dataSetName}] ({radius}, {angle})'");
        }
    }
}

[ASP.NET Web Forms - C# version] NetWebCharts\CSharpASP\polarline.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 chart
    double[] data0 = {90, 25, 40, 55, 68, 44, 79, 85, 50};
    double[] angles0 = {15, 60, 110, 180, 230, 260, 260, 310, 340};

    double[] data1 = {80, 91, 66, 80, 92, 87};
    double[] angles1 = {40, 65, 88, 110, 150, 200};

    // Create a PolarChart object of size 460 x 500 pixels, with a grey (e0e0e0) background and 1
    // pixel 3D border
    PolarChart c = new PolarChart(460, 500, 0xe0e0e0, 0x000000, 1);

    // Add a title to the chart at the top left corner using 15pt Arial Bold Italic font. Use a wood
    // pattern as the title background.
    c.addTitle("Polar Line Chart Demo", "Arial Bold Italic", 15).setBackground(c.patternColor(
        Server.MapPath("wood.png")));

    // Set center of plot area at (230, 280) with radius 180 pixels, and white (ffffff) background.
    c.setPlotArea(230, 280, 180, 0xffffff);

    // Set the grid style to circular grid, with grids below the chart layers
    c.setGridStyle(false, false);

    // Add a legend box at top-center of plot area (230, 35) using horizontal layout. Use 10pt Arial
    // Bold font, with 1 pixel 3D border effect.
    LegendBox b = c.addLegend(230, 35, false, "Arial Bold", 9);
    b.setAlignment(Chart.TopCenter);
    b.setBackground(Chart.Transparent, Chart.Transparent, 1);

    // Set angular axis as 0 - 360, with a spoke every 30 units
    c.angularAxis().setLinearScale(0, 360, 30);

    // Add a blue (0xff) line layer to the chart using (data0, angle0)
    PolarLineLayer layer0 = c.addLineLayer(data0, 0x0000ff, "Close Loop Line");
    layer0.setAngles(angles0);

    // Set the line width to 2 pixels
    layer0.setLineWidth(2);

    // Use 11 pixel triangle symbols for the data points
    layer0.setDataSymbol(Chart.TriangleSymbol, 11);

    // Enable data label and set its format
    layer0.setDataLabelFormat("({value},{angle})");

    // Set the data label text box with light blue (0x9999ff) backgruond color and 1 pixel 3D border
    // effect
    layer0.setDataLabelStyle().setBackground(0x9999ff, Chart.Transparent, 1);

    // Add a red (0xff0000) line layer to the chart using (data1, angle1)
    PolarLineLayer layer1 = c.addLineLayer(data1, 0xff0000, "Open Loop Line");
    layer1.setAngles(angles1);

    // Set the line width to 2 pixels
    layer1.setLineWidth(2);

    // Use 11 pixel diamond symbols for the data points
    layer1.setDataSymbol(Chart.DiamondSymbol, 11);

    // Set the line to open loop
    layer1.setCloseLoop(false);

    // Enable data label and set its format
    layer1.setDataLabelFormat("({value},{angle})");

    // Set the data label text box with light red (0xff9999) backgruond color and 1 pixel 3D border
    // effect
    layer1.setDataLabelStyle().setBackground(0xff9999, Chart.Transparent, 1);

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

    // Include tool tip for the chart
    WebChartViewer1.ImageMap = c.getHTMLImageMap("", "",
        "title='[{dataSetName}] ({radius}, {angle})'");
}

</script>

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

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\polarline.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 chart
    Dim data0() As Double = {90, 25, 40, 55, 68, 44, 79, 85, 50}
    Dim angles0() As Double = {15, 60, 110, 180, 230, 260, 260, 310, 340}

    Dim data1() As Double = {80, 91, 66, 80, 92, 87}
    Dim angles1() As Double = {40, 65, 88, 110, 150, 200}

    ' Create a PolarChart object of size 460 x 500 pixels, with a grey (e0e0e0) background and 1
    ' pixel 3D border
    Dim c As PolarChart = New PolarChart(460, 500, &He0e0e0, &H000000, 1)

    ' Add a title to the chart at the top left corner using 15pt Arial Bold Italic font. Use a wood
    ' pattern as the title background.
    c.addTitle("Polar Line Chart Demo", "Arial Bold Italic", 15).setBackground(c.patternColor( _
        Server.MapPath("wood.png")))

    ' Set center of plot area at (230, 280) with radius 180 pixels, and white (ffffff) background.
    c.setPlotArea(230, 280, 180, &Hffffff)

    ' Set the grid style to circular grid, with grids below the chart layers
    c.setGridStyle(False, False)

    ' Add a legend box at top-center of plot area (230, 35) using horizontal layout. Use 10pt Arial
    ' Bold font, with 1 pixel 3D border effect.
    Dim b As LegendBox = c.addLegend(230, 35, False, "Arial Bold", 9)
    b.setAlignment(Chart.TopCenter)
    b.setBackground(Chart.Transparent, Chart.Transparent, 1)

    ' Set angular axis as 0 - 360, with a spoke every 30 units
    c.angularAxis().setLinearScale(0, 360, 30)

    ' Add a blue (0xff) line layer to the chart using (data0, angle0)
    Dim layer0 As PolarLineLayer = c.addLineLayer(data0, &H0000ff, "Close Loop Line")
    layer0.setAngles(angles0)

    ' Set the line width to 2 pixels
    layer0.setLineWidth(2)

    ' Use 11 pixel triangle symbols for the data points
    layer0.setDataSymbol(Chart.TriangleSymbol, 11)

    ' Enable data label and set its format
    layer0.setDataLabelFormat("({value},{angle})")

    ' Set the data label text box with light blue (0x9999ff) backgruond color and 1 pixel 3D border
    ' effect
    layer0.setDataLabelStyle().setBackground(&H9999ff, Chart.Transparent, 1)

    ' Add a red (0xff0000) line layer to the chart using (data1, angle1)
    Dim layer1 As PolarLineLayer = c.addLineLayer(data1, &Hff0000, "Open Loop Line")
    layer1.setAngles(angles1)

    ' Set the line width to 2 pixels
    layer1.setLineWidth(2)

    ' Use 11 pixel diamond symbols for the data points
    layer1.setDataSymbol(Chart.DiamondSymbol, 11)

    ' Set the line to open loop
    layer1.setCloseLoop(False)

    ' Enable data label and set its format
    layer1.setDataLabelFormat("({value},{angle})")

    ' Set the data label text box with light red (0xff9999) backgruond color and 1 pixel 3D border
    ' effect
    layer1.setDataLabelStyle().setBackground(&Hff9999, Chart.Transparent, 1)

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

    ' Include tool tip for the chart
    WebChartViewer1.ImageMap = c.getHTMLImageMap("", "", _
        "title='[{dataSetName}] ({radius}, {angle})'")

End Sub

</script>

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

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

namespace NetMvcCharts.Controllers
{
    public class PolarlineController : Controller
    {
        //
        // Default Action
        //
        public ActionResult Index()
        {
            ViewBag.Title = "Polar Line 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 chart
            double[] data0 = {90, 25, 40, 55, 68, 44, 79, 85, 50};
            double[] angles0 = {15, 60, 110, 180, 230, 260, 260, 310, 340};

            double[] data1 = {80, 91, 66, 80, 92, 87};
            double[] angles1 = {40, 65, 88, 110, 150, 200};

            // Create a PolarChart object of size 460 x 500 pixels, with a grey (e0e0e0) background and 1
            // pixel 3D border
            PolarChart c = new PolarChart(460, 500, 0xe0e0e0, 0x000000, 1);

            // Add a title to the chart at the top left corner using 15pt Arial Bold Italic font. Use a
            // wood pattern as the title background.
            c.addTitle("Polar Line Chart Demo", "Arial Bold Italic", 15).setBackground(c.patternColor(
                Url.Content("~/Content/wood.png")));

            // Set center of plot area at (230, 280) with radius 180 pixels, and white (ffffff)
            // background.
            c.setPlotArea(230, 280, 180, 0xffffff);

            // Set the grid style to circular grid, with grids below the chart layers
            c.setGridStyle(false, false);

            // Add a legend box at top-center of plot area (230, 35) using horizontal layout. Use 10pt
            // Arial Bold font, with 1 pixel 3D border effect.
            LegendBox b = c.addLegend(230, 35, false, "Arial Bold", 9);
            b.setAlignment(Chart.TopCenter);
            b.setBackground(Chart.Transparent, Chart.Transparent, 1);

            // Set angular axis as 0 - 360, with a spoke every 30 units
            c.angularAxis().setLinearScale(0, 360, 30);

            // Add a blue (0xff) line layer to the chart using (data0, angle0)
            PolarLineLayer layer0 = c.addLineLayer(data0, 0x0000ff, "Close Loop Line");
            layer0.setAngles(angles0);

            // Set the line width to 2 pixels
            layer0.setLineWidth(2);

            // Use 11 pixel triangle symbols for the data points
            layer0.setDataSymbol(Chart.TriangleSymbol, 11);

            // Enable data label and set its format
            layer0.setDataLabelFormat("({value},{angle})");

            // Set the data label text box with light blue (0x9999ff) backgruond color and 1 pixel 3D
            // border effect
            layer0.setDataLabelStyle().setBackground(0x9999ff, Chart.Transparent, 1);

            // Add a red (0xff0000) line layer to the chart using (data1, angle1)
            PolarLineLayer layer1 = c.addLineLayer(data1, 0xff0000, "Open Loop Line");
            layer1.setAngles(angles1);

            // Set the line width to 2 pixels
            layer1.setLineWidth(2);

            // Use 11 pixel diamond symbols for the data points
            layer1.setDataSymbol(Chart.DiamondSymbol, 11);

            // Set the line to open loop
            layer1.setCloseLoop(false);

            // Enable data label and set its format
            layer1.setDataLabelFormat("({value},{angle})");

            // Set the data label text box with light red (0xff9999) backgruond color and 1 pixel 3D
            // border effect
            layer1.setDataLabelStyle().setBackground(0xff9999, Chart.Transparent, 1);

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

            // Include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("", "", "title='[{dataSetName}] ({radius}, {angle})'");
        }
    }
}

[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>