ChartDirector 6.2 (.NET Edition)

Contour Chart




This example demonstrates creating a contour chart.

Source Code Listing

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

namespace CSharpChartExplorer
{
    public class contour : DemoModule
    {
        //Name of demo module
        public string getName() { return "Contour 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 x and y coordinates of the grid
            double[] dataX = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
                10};
            double[] dataY = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
                10};

            // The values at the grid points. In this example, we will compute the values using the
            // formula z = x * sin(y) + y * sin(x).
            double[] dataZ = new double[dataX.Length * dataY.Length];
            for(int yIndex = 0; yIndex < dataY.Length; ++yIndex) {
                double y = dataY[yIndex];
                for(int xIndex = 0; xIndex < dataX.Length; ++xIndex) {
                    double x = dataX[xIndex];
                    dataZ[yIndex * dataX.Length + xIndex] = x * Math.Sin(y) + y * Math.Sin(x);
                }
            }

            // Create a XYChart object of size 600 x 500 pixels
            XYChart c = new XYChart(600, 500);

            // Add a title to the chart using 15 points Arial Bold Italic font
            c.addTitle("z = x * sin(y) + y * sin(x)      ", "Arial Bold Italic", 15);

            // Set the plotarea at (75, 40) and of size 400 x 400 pixels. Use semi-transparent black
            // (80000000) dotted lines for both horizontal and vertical grid lines
            c.setPlotArea(75, 40, 400, 400, -1, -1, -1, c.dashLineColor(unchecked((int)0x80000000),
                Chart.DotLine), -1);

            // Set x-axis and y-axis title using 12 points Arial Bold Italic font
            c.xAxis().setTitle("X-Axis Title Place Holder", "Arial Bold Italic", 12);
            c.yAxis().setTitle("Y-Axis Title Place Holder", "Arial Bold Italic", 12);

            // Set x-axis and y-axis labels to use Arial Bold font
            c.xAxis().setLabelStyle("Arial Bold");
            c.yAxis().setLabelStyle("Arial Bold");

            // When auto-scaling, use tick spacing of 40 pixels as a guideline
            c.yAxis().setTickDensity(40);
            c.xAxis().setTickDensity(40);

            // Add a contour layer using the given data
            ContourLayer layer = c.addContourLayer(dataX, dataY, dataZ);

            // Move the grid lines in front of the contour layer
            c.getPlotArea().moveGridBefore(layer);

            // Add a color axis (the legend) in which the top left corner is anchored at (505, 40).
            // Set the length to 400 pixels and the labels on the right side.
            ColorAxis cAxis = layer.setColorAxis(505, 40, Chart.TopLeft, 400, Chart.Right);

            // Add a title to the color axis using 12 points Arial Bold Italic font
            cAxis.setTitle("Color Legend Title Place Holder", "Arial Bold Italic", 12);

            // Set color axis labels to use Arial Bold font
            cAxis.setLabelStyle("Arial Bold");

            // Output the chart
            viewer.Chart = c;
        }
    }
}

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

Public Class contour
    Implements DemoModule

    'Name of demo module
    Public Function getName() As String Implements DemoModule.getName
        Return "Contour 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 x and y coordinates of the grid
        Dim dataX() As Double = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, _
            8, 9, 10}
        Dim dataY() As Double = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, _
            8, 9, 10}

        ' The values at the grid points. In this example, we will compute the values using the
        ' formula z = x * sin(y) + y * sin(x).
        Dim dataZ((UBound(dataX) + 1) * (UBound(dataY) + 1) - 1) As Double
        For yIndex As Integer = 0 To UBound(dataY)
            Dim y As Double = dataY(yIndex)
            For xIndex As Integer = 0 To UBound(dataX)
                Dim x As Double = dataX(xIndex)
                dataZ(yIndex * (UBound(dataX) + 1) + xIndex) = x * Math.Sin(y) + y * Math.Sin(x)
            Next
        Next

        ' Create a XYChart object of size 600 x 500 pixels
        Dim c As XYChart = New XYChart(600, 500)

        ' Add a title to the chart using 15 points Arial Bold Italic font
        c.addTitle("z = x * sin(y) + y * sin(x)      ", "Arial Bold Italic", 15)

        ' Set the plotarea at (75, 40) and of size 400 x 400 pixels. Use semi-transparent black
        ' (80000000) dotted lines for both horizontal and vertical grid lines
        c.setPlotArea(75, 40, 400, 400, -1, -1, -1, c.dashLineColor(&H80000000, Chart.DotLine), -1)

        ' Set x-axis and y-axis title using 12 points Arial Bold Italic font
        c.xAxis().setTitle("X-Axis Title Place Holder", "Arial Bold Italic", 12)
        c.yAxis().setTitle("Y-Axis Title Place Holder", "Arial Bold Italic", 12)

        ' Set x-axis and y-axis labels to use Arial Bold font
        c.xAxis().setLabelStyle("Arial Bold")
        c.yAxis().setLabelStyle("Arial Bold")

        ' When auto-scaling, use tick spacing of 40 pixels as a guideline
        c.yAxis().setTickDensity(40)
        c.xAxis().setTickDensity(40)

        ' Add a contour layer using the given data
        Dim layer As ContourLayer = c.addContourLayer(dataX, dataY, dataZ)

        ' Move the grid lines in front of the contour layer
        c.getPlotArea().moveGridBefore(layer)

        ' Add a color axis (the legend) in which the top left corner is anchored at (505, 40). Set
        ' the length to 400 pixels and the labels on the right side.
        Dim cAxis As ColorAxis = layer.setColorAxis(505, 40, Chart.TopLeft, 400, Chart.Right)

        ' Add a title to the color axis using 12 points Arial Bold Italic font
        cAxis.setTitle("Color Legend Title Place Holder", "Arial Bold Italic", 12)

        ' Set color axis labels to use Arial Bold font
        cAxis.setLabelStyle("Arial Bold")

        ' Output the chart
        viewer.Chart = c

    End Sub

End Class

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

namespace CSharpWPFDemo
{
    public class contour : DemoModule
    {
        //Name of demo module
        public string getName() { return "Contour 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 x and y coordinates of the grid
            double[] dataX = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
                10};
            double[] dataY = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
                10};

            // The values at the grid points. In this example, we will compute the values using the
            // formula z = x * sin(y) + y * sin(x).
            double[] dataZ = new double[dataX.Length * dataY.Length];
            for(int yIndex = 0; yIndex < dataY.Length; ++yIndex) {
                double y = dataY[yIndex];
                for(int xIndex = 0; xIndex < dataX.Length; ++xIndex) {
                    double x = dataX[xIndex];
                    dataZ[yIndex * dataX.Length + xIndex] = x * Math.Sin(y) + y * Math.Sin(x);
                }
            }

            // Create a XYChart object of size 600 x 500 pixels
            XYChart c = new XYChart(600, 500);

            // Add a title to the chart using 15 points Arial Bold Italic font
            c.addTitle("z = x * sin(y) + y * sin(x)      ", "Arial Bold Italic", 15);

            // Set the plotarea at (75, 40) and of size 400 x 400 pixels. Use semi-transparent black
            // (80000000) dotted lines for both horizontal and vertical grid lines
            c.setPlotArea(75, 40, 400, 400, -1, -1, -1, c.dashLineColor(unchecked((int)0x80000000),
                Chart.DotLine), -1);

            // Set x-axis and y-axis title using 12 points Arial Bold Italic font
            c.xAxis().setTitle("X-Axis Title Place Holder", "Arial Bold Italic", 12);
            c.yAxis().setTitle("Y-Axis Title Place Holder", "Arial Bold Italic", 12);

            // Set x-axis and y-axis labels to use Arial Bold font
            c.xAxis().setLabelStyle("Arial Bold");
            c.yAxis().setLabelStyle("Arial Bold");

            // When auto-scaling, use tick spacing of 40 pixels as a guideline
            c.yAxis().setTickDensity(40);
            c.xAxis().setTickDensity(40);

            // Add a contour layer using the given data
            ContourLayer layer = c.addContourLayer(dataX, dataY, dataZ);

            // Move the grid lines in front of the contour layer
            c.getPlotArea().moveGridBefore(layer);

            // Add a color axis (the legend) in which the top left corner is anchored at (505, 40).
            // Set the length to 400 pixels and the labels on the right side.
            ColorAxis cAxis = layer.setColorAxis(505, 40, Chart.TopLeft, 400, Chart.Right);

            // Add a title to the color axis using 12 points Arial Bold Italic font
            cAxis.setTitle("Color Legend Title Place Holder", "Arial Bold Italic", 12);

            // Set color axis labels to use Arial Bold font
            cAxis.setLabelStyle("Arial Bold");

            // Output the chart
            viewer.Chart = c;
        }
    }
}

[ASP.NET Web Forms - C# version] NetWebCharts\CSharpASP\contour.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 x and y coordinates of the grid
    double[] dataX = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
    double[] dataY = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

    // The values at the grid points. In this example, we will compute the values using the formula
    // z = x * sin(y) + y * sin(x).
    double[] dataZ = new double[dataX.Length * dataY.Length];
    for(int yIndex = 0; yIndex < dataY.Length; ++yIndex) {
        double y = dataY[yIndex];
        for(int xIndex = 0; xIndex < dataX.Length; ++xIndex) {
            double x = dataX[xIndex];
            dataZ[yIndex * dataX.Length + xIndex] = x * Math.Sin(y) + y * Math.Sin(x);
        }
    }

    // Create a XYChart object of size 600 x 500 pixels
    XYChart c = new XYChart(600, 500);

    // Add a title to the chart using 15 points Arial Bold Italic font
    c.addTitle("z = x * sin(y) + y * sin(x)      ", "Arial Bold Italic", 15);

    // Set the plotarea at (75, 40) and of size 400 x 400 pixels. Use semi-transparent black
    // (80000000) dotted lines for both horizontal and vertical grid lines
    c.setPlotArea(75, 40, 400, 400, -1, -1, -1, c.dashLineColor(unchecked((int)0x80000000),
        Chart.DotLine), -1);

    // Set x-axis and y-axis title using 12 points Arial Bold Italic font
    c.xAxis().setTitle("X-Axis Title Place Holder", "Arial Bold Italic", 12);
    c.yAxis().setTitle("Y-Axis Title Place Holder", "Arial Bold Italic", 12);

    // Set x-axis and y-axis labels to use Arial Bold font
    c.xAxis().setLabelStyle("Arial Bold");
    c.yAxis().setLabelStyle("Arial Bold");

    // When auto-scaling, use tick spacing of 40 pixels as a guideline
    c.yAxis().setTickDensity(40);
    c.xAxis().setTickDensity(40);

    // Add a contour layer using the given data
    ContourLayer layer = c.addContourLayer(dataX, dataY, dataZ);

    // Move the grid lines in front of the contour layer
    c.getPlotArea().moveGridBefore(layer);

    // Add a color axis (the legend) in which the top left corner is anchored at (505, 40). Set the
    // length to 400 pixels and the labels on the right side.
    ColorAxis cAxis = layer.setColorAxis(505, 40, Chart.TopLeft, 400, Chart.Right);

    // Add a title to the color axis using 12 points Arial Bold Italic font
    cAxis.setTitle("Color Legend Title Place Holder", "Arial Bold Italic", 12);

    // Set color axis labels to use Arial Bold font
    cAxis.setLabelStyle("Arial Bold");

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

</script>

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

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\contour.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 x and y coordinates of the grid
    Dim dataX() As Double = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, _
        9, 10}
    Dim dataY() As Double = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, _
        9, 10}

    ' The values at the grid points. In this example, we will compute the values using the formula z
    ' = x * sin(y) + y * sin(x).
    Dim dataZ((UBound(dataX) + 1) * (UBound(dataY) + 1) - 1) As Double
    For yIndex As Integer = 0 To UBound(dataY)
        Dim y As Double = dataY(yIndex)
        For xIndex As Integer = 0 To UBound(dataX)
            Dim x As Double = dataX(xIndex)
            dataZ(yIndex * (UBound(dataX) + 1) + xIndex) = x * Math.Sin(y) + y * Math.Sin(x)
        Next
    Next

    ' Create a XYChart object of size 600 x 500 pixels
    Dim c As XYChart = New XYChart(600, 500)

    ' Add a title to the chart using 15 points Arial Bold Italic font
    c.addTitle("z = x * sin(y) + y * sin(x)      ", "Arial Bold Italic", 15)

    ' Set the plotarea at (75, 40) and of size 400 x 400 pixels. Use semi-transparent black
    ' (80000000) dotted lines for both horizontal and vertical grid lines
    c.setPlotArea(75, 40, 400, 400, -1, -1, -1, c.dashLineColor(&H80000000, Chart.DotLine), -1)

    ' Set x-axis and y-axis title using 12 points Arial Bold Italic font
    c.xAxis().setTitle("X-Axis Title Place Holder", "Arial Bold Italic", 12)
    c.yAxis().setTitle("Y-Axis Title Place Holder", "Arial Bold Italic", 12)

    ' Set x-axis and y-axis labels to use Arial Bold font
    c.xAxis().setLabelStyle("Arial Bold")
    c.yAxis().setLabelStyle("Arial Bold")

    ' When auto-scaling, use tick spacing of 40 pixels as a guideline
    c.yAxis().setTickDensity(40)
    c.xAxis().setTickDensity(40)

    ' Add a contour layer using the given data
    Dim layer As ContourLayer = c.addContourLayer(dataX, dataY, dataZ)

    ' Move the grid lines in front of the contour layer
    c.getPlotArea().moveGridBefore(layer)

    ' Add a color axis (the legend) in which the top left corner is anchored at (505, 40). Set the
    ' length to 400 pixels and the labels on the right side.
    Dim cAxis As ColorAxis = layer.setColorAxis(505, 40, Chart.TopLeft, 400, Chart.Right)

    ' Add a title to the color axis using 12 points Arial Bold Italic font
    cAxis.setTitle("Color Legend Title Place Holder", "Arial Bold Italic", 12)

    ' Set color axis labels to use Arial Bold font
    cAxis.setLabelStyle("Arial Bold")

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

End Sub

</script>

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

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

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

        //
        // Create chart
        //
        private void createChart(RazorChartViewer viewer)
        {
            // The x and y coordinates of the grid
            double[] dataX = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
            double[] dataY = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

            // The values at the grid points. In this example, we will compute the values using the
            // formula z = x * sin(y) + y * sin(x).
            double[] dataZ = new double[dataX.Length * dataY.Length];
            for(int yIndex = 0; yIndex < dataY.Length; ++yIndex) {
                double y = dataY[yIndex];
                for(int xIndex = 0; xIndex < dataX.Length; ++xIndex) {
                    double x = dataX[xIndex];
                    dataZ[yIndex * dataX.Length + xIndex] = x * Math.Sin(y) + y * Math.Sin(x);
                }
            }

            // Create a XYChart object of size 600 x 500 pixels
            XYChart c = new XYChart(600, 500);

            // Add a title to the chart using 15 points Arial Bold Italic font
            c.addTitle("z = x * sin(y) + y * sin(x)      ", "Arial Bold Italic", 15);

            // Set the plotarea at (75, 40) and of size 400 x 400 pixels. Use semi-transparent black
            // (80000000) dotted lines for both horizontal and vertical grid lines
            c.setPlotArea(75, 40, 400, 400, -1, -1, -1, c.dashLineColor(unchecked((int)0x80000000),
                Chart.DotLine), -1);

            // Set x-axis and y-axis title using 12 points Arial Bold Italic font
            c.xAxis().setTitle("X-Axis Title Place Holder", "Arial Bold Italic", 12);
            c.yAxis().setTitle("Y-Axis Title Place Holder", "Arial Bold Italic", 12);

            // Set x-axis and y-axis labels to use Arial Bold font
            c.xAxis().setLabelStyle("Arial Bold");
            c.yAxis().setLabelStyle("Arial Bold");

            // When auto-scaling, use tick spacing of 40 pixels as a guideline
            c.yAxis().setTickDensity(40);
            c.xAxis().setTickDensity(40);

            // Add a contour layer using the given data
            ContourLayer layer = c.addContourLayer(dataX, dataY, dataZ);

            // Move the grid lines in front of the contour layer
            c.getPlotArea().moveGridBefore(layer);

            // Add a color axis (the legend) in which the top left corner is anchored at (505, 40). Set
            // the length to 400 pixels and the labels on the right side.
            ColorAxis cAxis = layer.setColorAxis(505, 40, Chart.TopLeft, 400, Chart.Right);

            // Add a title to the color axis using 12 points Arial Bold Italic font
            cAxis.setTitle("Color Legend Title Place Holder", "Arial Bold Italic", 12);

            // Set color axis labels to use Arial Bold font
            cAxis.setLabelStyle("Arial Bold");

            // Output the chart
            viewer.Image = c.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>