ChartDirector 6.0 (ASP/COM/VB Edition)

Rotated Pyramid Chart




This example demonstrates a semi-transparent pyramid viewed at elevation and rotation angles. It also demonstrates adding a legend box to the pyramid chart.

The elevation and rotation angles are set using PyramidChart.setViewAngle. The legend box is added using BaseChart.addLegend. Semi-transparent colors are used to make the pyramid semi-transparent.

Source Code Listing

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

' The data for the pyramid chart
data = Array(156, 123, 211, 179)

' The labels for the pyramid chart
labels = Array("Funds", "Bonds", "Stocks", "Cash")

' The semi-transparent colors for the pyramid layers
colors = Array(&H400000cc, &H4066aaee, &H40ffbb00, &H40ee6622)

' Create a PyramidChart object of size 450 x 400 pixels
Set c = cd.PyramidChart(450, 400)

' Set the pyramid center at (220, 180), and width x height to 150 x 300 pixels
Call c.setPyramidSize(220, 180, 150, 300)

' Set the elevation to 15 degrees and rotation to 75 degrees
Call c.setViewAngle(15, 75)

' Set the pyramid data and labels
Call c.setData(data, labels)

' Set the layer colors to the given colors
Call c.setColors2(cd.DataColor, colors)

' Leave 1% gaps between layers
Call c.setLayerGap(0.01)

' Add a legend box at (320, 60), with light grey (eeeeee) background and grey (888888) border. Set
' the top-left and bottom-right corners to rounded corners of 10 pixels radius.
Set legendBox = c.addLegend(320, 60)
Call legendBox.setBackground(&Heeeeee, &H888888)
Call legendBox.setRoundedCorners(10, 0, 10, 0)

' Add labels at the center of the pyramid layers using Arial Bold font. The labels will show the
' percentage of the layers.
Call c.setCenterLabel("{percent}%", "arialbd.ttf")

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

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

    Dim cd As New ChartDirector.API

    ' The data for the pyramid chart
    Dim data()
    data = Array(156, 123, 211, 179)

    ' The labels for the pyramid chart
    Dim labels()
    labels = Array("Funds", "Bonds", "Stocks", "Cash")

    ' The semi-transparent colors for the pyramid layers
    Dim colors()
    colors = Array(&H400000cc, &H4066aaee, &H40ffbb00, &H40ee6622)

    ' Create a PyramidChart object of size 450 x 400 pixels
    Dim c As PyramidChart
    Set c = cd.PyramidChart(450, 400)

    ' Set the pyramid center at (220, 180), and width x height to 150 x 300 pixels
    Call c.setPyramidSize(220, 180, 150, 300)

    ' Set the elevation to 15 degrees and rotation to 75 degrees
    Call c.setViewAngle(15, 75)

    ' Set the pyramid data and labels
    Call c.setData(data, labels)

    ' Set the layer colors to the given colors
    Call c.setColors2(cd.DataColor, colors)

    ' Leave 1% gaps between layers
    Call c.setLayerGap(0.01)

    ' Add a legend box at (320, 60), with light grey (eeeeee) background and grey (888888) border.
    ' Set the top-left and bottom-right corners to rounded corners of 10 pixels radius.
    Dim legendBox As LegendBox
    Set legendBox = c.addLegend(320, 60)
    Call legendBox.setBackground(&Heeeeee, &H888888)
    Call legendBox.setRoundedCorners(10, 0, 10, 0)

    ' Add labels at the center of the pyramid layers using Arial Bold font. The labels will show the
    ' percentage of the layers.
    Call c.setCenterLabel("{percent}%", "arialbd.ttf")

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

    'include tool tip for the chart
    viewer.ImageMap = c.getHTMLImageMap("clickable", "", _
        "title='{label}: US$ {value}M ({percent}%)'")

End Sub