ChartDirector 6.2 (.NET Edition)

Bar Gap


          

This example demonstrates the effects of different bar gaps configured using BarLayer.setBarGap.

Source Code Listing

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

namespace CSharpChartExplorer
{
    public class gapbar : DemoModule
    {
        //Name of demo module
        public string getName() { return "Bar Gap"; }

        //Number of charts produced in this demo module
        public int getNoOfCharts() { return 6; }

        //Main code for creating charts
        public void createChart(WinChartViewer viewer, int chartIndex)
        {
            double bargap = chartIndex * 0.25 - 0.25;

            // The data for the bar chart
            double[] data = {100, 125, 245, 147, 67};

            // The labels for the bar chart
            string[] labels = {"Mon", "Tue", "Wed", "Thu", "Fri"};

            // Create a XYChart object of size 150 x 150 pixels
            XYChart c = new XYChart(150, 150);

            // Set the plotarea at (27, 20) and of size 120 x 100 pixels
            c.setPlotArea(27, 20, 120, 100);

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

            if (bargap >= 0) {
                // Add a title to display to bar gap using 8pt Arial font
                c.addTitle("      Bar Gap = " + bargap, "Arial", 8);
            } else {
                // Use negative value to mean TouchBar
                c.addTitle("      Bar Gap = TouchBar", "Arial", 8);
                bargap = Chart.TouchBar;
            }

            // Add a bar chart layer using the given data and set the bar gap
            c.addBarLayer(data).setBarGap(bargap);

            // Output the chart
            viewer.Chart = c;

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

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

Public Class gapbar
    Implements DemoModule

    'Name of demo module
    Public Function getName() As String Implements DemoModule.getName
        Return "Bar Gap"
    End Function

    'Number of charts produced in this demo module
    Public Function getNoOfCharts() As Integer Implements DemoModule.getNoOfCharts
        Return 6
    End Function

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

        Dim bargap As Double = chartIndex * 0.25 - 0.25

        ' The data for the bar chart
        Dim data() As Double = {100, 125, 245, 147, 67}

        ' The labels for the bar chart
        Dim labels() As String = {"Mon", "Tue", "Wed", "Thu", "Fri"}

        ' Create a XYChart object of size 150 x 150 pixels
        Dim c As XYChart = New XYChart(150, 150)

        ' Set the plotarea at (27, 20) and of size 120 x 100 pixels
        c.setPlotArea(27, 20, 120, 100)

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

        If bargap >= 0 Then
            ' Add a title to display to bar gap using 8pt Arial font
            c.addTitle("      Bar Gap = " & bargap, "Arial", 8)
        Else
            ' Use negative value to mean TouchBar
            c.addTitle("      Bar Gap = TouchBar", "Arial", 8)
            bargap = Chart.TouchBar
        End If

        ' Add a bar chart layer using the given data and set the bar gap
        c.addBarLayer(data).setBarGap(bargap)

        ' Output the chart
        viewer.Chart = c

        'include tool tip for the chart
        viewer.ImageMap = c.getHTMLImageMap("clickable", "", _
            "title='Production on {xLabel}: {value} kg'")

    End Sub

End Class

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

namespace CSharpWPFDemo
{
    public class gapbar : DemoModule
    {
        //Name of demo module
        public string getName() { return "Bar Gap"; }

        //Number of charts produced in this demo module
        public int getNoOfCharts() { return 6; }

        //Main code for creating charts
        public void createChart(WPFChartViewer viewer, int chartIndex)
        {
            double bargap = chartIndex * 0.25 - 0.25;

            // The data for the bar chart
            double[] data = {100, 125, 245, 147, 67};

            // The labels for the bar chart
            string[] labels = {"Mon", "Tue", "Wed", "Thu", "Fri"};

            // Create a XYChart object of size 150 x 150 pixels
            XYChart c = new XYChart(150, 150);

            // Set the plotarea at (27, 20) and of size 120 x 100 pixels
            c.setPlotArea(27, 20, 120, 100);

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

            if (bargap >= 0) {
                // Add a title to display to bar gap using 8pt Arial font
                c.addTitle("      Bar Gap = " + bargap, "Arial", 8);
            } else {
                // Use negative value to mean TouchBar
                c.addTitle("      Bar Gap = TouchBar", "Arial", 8);
                bargap = Chart.TouchBar;
            }

            // Add a bar chart layer using the given data and set the bar gap
            c.addBarLayer(data).setBarGap(bargap);

            // Output the chart
            viewer.Chart = c;

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

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

<!DOCTYPE html>

<script runat="server">

//
// Create chart
//
protected void createChart(WebChartViewer viewer, int chartIndex)
{
    double bargap = chartIndex * 0.25 - 0.25;

    // The data for the bar chart
    double[] data = {100, 125, 245, 147, 67};

    // The labels for the bar chart
    string[] labels = {"Mon", "Tue", "Wed", "Thu", "Fri"};

    // Create a XYChart object of size 150 x 150 pixels
    XYChart c = new XYChart(150, 150);

    // Set the plotarea at (27, 20) and of size 120 x 100 pixels
    c.setPlotArea(27, 20, 120, 100);

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

    if (bargap >= 0) {
        // Add a title to display to bar gap using 8pt Arial font
        c.addTitle("      Bar Gap = " + bargap, "Arial", 8);
    } else {
        // Use negative value to mean TouchBar
        c.addTitle("      Bar Gap = TouchBar", "Arial", 8);
        bargap = Chart.TouchBar;
    }

    // Add a bar chart layer using the given data and set the bar gap
    c.addBarLayer(data).setBarGap(bargap);

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

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

//
// Page Load event handler
//
protected void Page_Load(object sender, EventArgs e)
{
    createChart(WebChartViewer0, 0);
    createChart(WebChartViewer1, 1);
    createChart(WebChartViewer2, 2);
    createChart(WebChartViewer3, 3);
    createChart(WebChartViewer4, 4);
    createChart(WebChartViewer5, 5);
}

</script>

<html>
<body>
    <chart:WebChartViewer id="WebChartViewer0" runat="server" />
    <chart:WebChartViewer id="WebChartViewer1" runat="server" />
    <chart:WebChartViewer id="WebChartViewer2" runat="server" />
    <chart:WebChartViewer id="WebChartViewer3" runat="server" />
    <chart:WebChartViewer id="WebChartViewer4" runat="server" />
    <chart:WebChartViewer id="WebChartViewer5" runat="server" />
</body>
</html>

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

<!DOCTYPE html>

<script runat="server">

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

    Dim bargap As Double = chartIndex * 0.25 - 0.25

    ' The data for the bar chart
    Dim data() As Double = {100, 125, 245, 147, 67}

    ' The labels for the bar chart
    Dim labels() As String = {"Mon", "Tue", "Wed", "Thu", "Fri"}

    ' Create a XYChart object of size 150 x 150 pixels
    Dim c As XYChart = New XYChart(150, 150)

    ' Set the plotarea at (27, 20) and of size 120 x 100 pixels
    c.setPlotArea(27, 20, 120, 100)

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

    If bargap >= 0 Then
        ' Add a title to display to bar gap using 8pt Arial font
        c.addTitle("      Bar Gap = " & bargap, "Arial", 8)
    Else
        ' Use negative value to mean TouchBar
        c.addTitle("      Bar Gap = TouchBar", "Arial", 8)
        bargap = Chart.TouchBar
    End If

    ' Add a bar chart layer using the given data and set the bar gap
    c.addBarLayer(data).setBarGap(bargap)

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

    ' Include tool tip for the chart
    viewer.ImageMap = c.getHTMLImageMap("", "", "title='Production on {xLabel}: {value} kg'")

End Sub

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

    createChart(WebChartViewer0, 0)
    createChart(WebChartViewer1, 1)
    createChart(WebChartViewer2, 2)
    createChart(WebChartViewer3, 3)
    createChart(WebChartViewer4, 4)
    createChart(WebChartViewer5, 5)

End Sub

</script>

<html>
<body>
    <chart:WebChartViewer id="WebChartViewer0" runat="server" />
    <chart:WebChartViewer id="WebChartViewer1" runat="server" />
    <chart:WebChartViewer id="WebChartViewer2" runat="server" />
    <chart:WebChartViewer id="WebChartViewer3" runat="server" />
    <chart:WebChartViewer id="WebChartViewer4" runat="server" />
    <chart:WebChartViewer id="WebChartViewer5" runat="server" />
</body>
</html>

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

namespace NetMvcCharts.Controllers
{
    public class GapbarController : Controller
    {
        //
        // Default Action
        //
        public ActionResult Index()
        {
            ViewBag.Title = "Bar Gap";

            // This example contains 6 charts.
            ViewBag.Viewer = new RazorChartViewer[6];
            for (int i = 0; i < ViewBag.Viewer.Length; ++i)
                createChart(ViewBag.Viewer[i] = new RazorChartViewer(HttpContext, "chart" + i), i);

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

        //
        // Create chart
        //
        private void createChart(RazorChartViewer viewer, int chartIndex)
        {
            double bargap = chartIndex * 0.25 - 0.25;

            // The data for the bar chart
            double[] data = {100, 125, 245, 147, 67};

            // The labels for the bar chart
            string[] labels = {"Mon", "Tue", "Wed", "Thu", "Fri"};

            // Create a XYChart object of size 150 x 150 pixels
            XYChart c = new XYChart(150, 150);

            // Set the plotarea at (27, 20) and of size 120 x 100 pixels
            c.setPlotArea(27, 20, 120, 100);

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

            if (bargap >= 0) {
                // Add a title to display to bar gap using 8pt Arial font
                c.addTitle("      Bar Gap = " + bargap, "Arial", 8);
            } else {
                // Use negative value to mean TouchBar
                c.addTitle("      Bar Gap = TouchBar", "Arial", 8);
                bargap = Chart.TouchBar;
            }

            // Add a bar chart layer using the given data and set the bar gap
            c.addBarLayer(data).setBarGap(bargap);

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

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

[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>