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170
in bar chart - how to adjust bar spacing?
posted

How to adjust the bar spacing in ultrachart (barchart)? there is a big space between each bar. 

bars are horizontal (not vertical) in this chart.  thanks.

also i'm using ultra chart version: 8.3,  charttype=bar chart

Parents Reply
  • 28407
    posted in reply to r

    HI,

     I ran you code and its actually increasing the space between bars.

     Once possible cause for large space between bars - is that the chart will decide the range of the X-axis by selecting the minum and maximum values of your data and you won't see the minimum bar. So it looks like there is a large gap between bars but there really isn't.

     You can create your own range for the X-axis. I create a sample project for you - my data range goes from 1 to 5.  I did'nt see my bar for value 1. So I adjust the X-axis range to go from 0 - 6.

     here is a code snippet -

    UltraChart1.Axis.X.RangeType = AxisRangeType.Custom;
            UltraChart1.Axis.X.RangeMin = 0;
            UltraChart1.Axis.X.RangeMax = 6;

    Here is my aspx page

    <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

    <%@ Register assembly="Infragistics2.WebUI.UltraWebChart.v8.3, Version=8.3.20083.2059, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb" namespace="Infragistics.WebUI.UltraWebChart" tagprefix="igchart" %>
    <%@ Register assembly="Infragistics2.WebUI.UltraWebChart.v8.3, Version=8.3.20083.2059, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb" namespace="Infragistics.UltraChart.Resources.Appearance" tagprefix="igchartprop" %>
    <%@ Register assembly="Infragistics2.WebUI.UltraWebChart.v8.3, Version=8.3.20083.2059, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb" namespace="Infragistics.UltraChart.Data" tagprefix="igchartdata" %>

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
        <title>Untitled Page</title>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
       
            <igchart:UltraChart ID="UltraChart1" runat="server" BackgroundImageFileName=""
                BorderColor="Black" BorderWidth="0px" ChartType="BarChart"
                EmptyChartText="Data Not Available. Please call UltraChart.Data.DataBind() after setting valid Data.DataSource"
                Version="8.3">
                <axis>
                    <pe elementtype="None" fill="Cornsilk" />
                    <x linethickness="1" tickmarkinterval="10" tickmarkstyle="Smart" visible="True">
                        <majorgridlines alphalevel="255" color="Gainsboro" drawstyle="Dot"
                            thickness="1" visible="True" />
                        <minorgridlines alphalevel="255" color="LightGray" drawstyle="Dot"
                            thickness="1" visible="False" />
                        <labels font="Verdana, 7pt" fontcolor="DimGray" horizontalalign="Far"
                            itemformatstring="&lt;DATA_VALUE:00.##&gt;" orientation="VerticalLeftFacing"
                            verticalalign="Center">
                            <serieslabels font="Verdana, 7pt" fontcolor="DimGray" formatstring=""
                                horizontalalign="Far" orientation="VerticalLeftFacing" verticalalign="Center">
                                <layout behavior="Auto">
                                </layout>
                            </serieslabels>
                            <layout behavior="Auto">
                            </layout>
                        </labels>
                    </x>
                    <y linethickness="1" tickmarkinterval="0" tickmarkstyle="Smart" visible="True">
                        <majorgridlines alphalevel="255" color="Gainsboro" drawstyle="Dot"
                            thickness="1" visible="True" />
                        <minorgridlines alphalevel="255" color="LightGray" drawstyle="Dot"
                            thickness="1" visible="False" />
                        <labels font="Verdana, 7pt" fontcolor="DimGray" horizontalalign="Far"
                            itemformatstring="&lt;ITEM_LABEL&gt;" orientation="Horizontal"
                            verticalalign="Center">
                            <serieslabels font="Verdana, 7pt" fontcolor="DimGray" horizontalalign="Center"
                                orientation="VerticalLeftFacing" verticalalign="Center">
                                <layout behavior="Auto">
                                </layout>
                            </serieslabels>
                            <layout behavior="Auto">
                            </layout>
                        </labels>
                    </y>
                    <y2 linethickness="1" tickmarkinterval="0" tickmarkstyle="Smart"
                        visible="False">
                        <majorgridlines alphalevel="255" color="Gainsboro" drawstyle="Dot"
                            thickness="1" visible="True" />
                        <minorgridlines alphalevel="255" color="LightGray" drawstyle="Dot"
                            thickness="1" visible="False" />
                        <labels font="Verdana, 7pt" fontcolor="Gray" horizontalalign="Near"
                            itemformatstring="&lt;ITEM_LABEL&gt;" orientation="Horizontal"
                            verticalalign="Center" visible="False">
                            <serieslabels font="Verdana, 7pt" fontcolor="Gray" horizontalalign="Center"
                                orientation="VerticalLeftFacing" verticalalign="Center">
                                <layout behavior="Auto">
                                </layout>
                            </serieslabels>
                            <layout behavior="Auto">
                            </layout>
                        </labels>
                    </y2>
                    <x2 linethickness="1" tickmarkinterval="10" tickmarkstyle="Smart"
                        visible="False">
                        <majorgridlines alphalevel="255" color="Gainsboro" drawstyle="Dot"
                            thickness="1" visible="True" />
                        <minorgridlines alphalevel="255" color="LightGray" drawstyle="Dot"
                            thickness="1" visible="False" />
                        <labels font="Verdana, 7pt" fontcolor="Gray" horizontalalign="Far"
                            itemformatstring="&lt;DATA_VALUE:00.##&gt;" orientation="VerticalLeftFacing"
                            verticalalign="Center" visible="False">
                            <serieslabels font="Verdana, 7pt" fontcolor="Gray" formatstring=""
                                horizontalalign="Far" orientation="VerticalLeftFacing" verticalalign="Center">
                                <layout behavior="Auto">
                                </layout>
                            </serieslabels>
                            <layout behavior="Auto">
                            </layout>
                        </labels>
                    </x2>
                    <z linethickness="1" tickmarkinterval="0" tickmarkstyle="Smart" visible="False">
                        <majorgridlines alphalevel="255" color="Gainsboro" drawstyle="Dot"
                            thickness="1" visible="True" />
                        <minorgridlines alphalevel="255" color="LightGray" drawstyle="Dot"
                            thickness="1" visible="False" />
                        <labels font="Verdana, 7pt" fontcolor="DimGray" horizontalalign="Near"
                            itemformatstring="" orientation="Horizontal" verticalalign="Center"
                            visible="False">
                            <serieslabels font="Verdana, 7pt" fontcolor="DimGray" horizontalalign="Near"
                                orientation="Horizontal" verticalalign="Center">
                                <layout behavior="Auto">
                                </layout>
                            </serieslabels>
                            <layout behavior="Auto">
                            </layout>
                        </labels>
                    </z>
                    <z2 linethickness="1" tickmarkinterval="0" tickmarkstyle="Smart"
                        visible="False">
                        <majorgridlines alphalevel="255" color="Gainsboro" drawstyle="Dot"
                            thickness="1" visible="True" />
                        <minorgridlines alphalevel="255" color="LightGray" drawstyle="Dot"
                            thickness="1" visible="False" />
                        <labels font="Verdana, 7pt" fontcolor="Gray" horizontalalign="Near"
                            itemformatstring="" orientation="Horizontal" verticalalign="Center"
                            visible="False">
                            <serieslabels font="Verdana, 7pt" fontcolor="Gray" horizontalalign="Near"
                                orientation="VerticalLeftFacing" verticalalign="Center">
                                <layout behavior="Auto">
                                </layout>
                            </serieslabels>
                            <layout behavior="Auto">
                            </layout>
                        </labels>
                    </z2>
                </axis>
                <effects>
                    <effects>
                        <igchartprop:GradientEffect />
                    </effects>
                </effects>
                <colormodel alphalevel="150" colorbegin="Pink" colorend="DarkRed"
                    modelstyle="CustomLinear">
                </colormodel>
                <Border Thickness="0" />
                <tooltips font-bold="False" font-italic="False" font-overline="False"
                    font-strikeout="False" font-underline="False" />
            </igchart:UltraChart>
       
        </div>
        </form>
    </body>
    </html>

     

    Here is my code behind

    using System;
    using System.Configuration;
    using System.Data;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.HtmlControls;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using Infragistics.UltraChart.Shared.Styles;
    using Infragistics.UltraChart.Resources.Appearance;
    using Infragistics.UltraChart.Core.Layers;


    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            UltraChart1.DataSource = GetData();
            UltraChart1.DataBind();
            UltraChart1.Axis.X.RangeType = AxisRangeType.Custom;
            UltraChart1.Axis.X.RangeMin = 0;
            UltraChart1.Axis.X.RangeMax = 6;

            UltraChart1.BarChart.BarSpacing = 0;
            UltraChart1.BarChart.SeriesSpacing = 0;

        }

        private static DataTable GetData()
        {
            DataTable table = new DataTable();
            table.Columns.Add("Label", typeof(string));
            table.Columns.Add("Sales", typeof(double));
            table.Columns.Add("PreSales", typeof(double));
            table.Rows.Add(new object[] { "Point A", 1.0, 3.0 });
            table.Rows.Add(new object[] { "Point B", 2.0, 2.0 });
            table.Rows.Add(new object[] { "Point C", 3.0, 1.0 });
            table.Rows.Add(new object[] { "Point D", 4.0, 2.0 });
            table.Rows.Add(new object[] { "Point E", 5.0, 3.0 });
            return table;
        }
        protected void UltraChart1_ChartDrawItem(object sender, Infragistics.UltraChart.Shared.Events.ChartDrawItemEventArgs e)
        {

            //{
            //    int columnWidth = 15;
            //    Infragistics.UltraChart.Core.Primitives.Box box = e.Primitive as Infragistics.UltraChart.Core.Primitives.Box;
            //    if (box == null)
            //    {
            //        return;
            //    }
            //    if (box.DataPoint == null)
            //    {
            //        return;
            //    }
            //    int dWidth = box.rect.Height - columnWidth;
            //    if (dWidth <= 0)
            //    {
            //        return;
            //    }
            //    box.rect.Height = columnWidth;
            //    box.rect.Y += dWidth / 2;
            //}
        }
    }

     

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