ChartDirector 6.0 (ASP/COM/VB Edition)

Simple Bar Chart (1)




This example demonstrates the basic steps in creating bar charts.

Source Code Listing

[Web Version (in ASP)] aspdemo\simplebar.asp
<%@ language="vbscript" %>
<%
Set cd = CreateObject("ChartDirector.API")

' The data for the bar chart
data = Array(85, 156, 179.5, 211, 123)

' The labels for the bar chart
labels = Array("Mon", "Tue", "Wed", "Thu", "Fri")

' Create a XYChart object of size 250 x 250 pixels
Set c = cd.XYChart(250, 250)

' Set the plotarea at (30, 20) and of size 200 x 200 pixels
Call c.setPlotArea(30, 20, 200, 200)

' Add a bar chart layer using the given data
Call c.addBarLayer(data)

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

' Output the chart
Response.ContentType = "image/png"
Response.BinaryWrite c.makeChart2(cd.PNG)
Response.End
%>

[Windows Version (in Visual Basic)] vbdemo\simplebar.cls
Public Sub createChart(viewer As Object, chartIndex As Integer)

    Dim cd As New ChartDirector.API

    ' The data for the bar chart
    Dim data()
    data = Array(85, 156, 179.5, 211, 123)

    ' The labels for the bar chart
    Dim labels()
    labels = Array("Mon", "Tue", "Wed", "Thu", "Fri")

    ' Create a XYChart object of size 250 x 250 pixels
    Dim c As XYChart
    Set c = cd.XYChart(250, 250)

    ' Set the plotarea at (30, 20) and of size 200 x 200 pixels
    Call c.setPlotArea(30, 20, 200, 200)

    ' Add a bar chart layer using the given data
    Call c.addBarLayer(data)

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

    ' Output the chart
    Set viewer.Picture = c.makePicture()

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

End Sub