This example demonstrates a multi-bar chart with glass shading effect for bars and gradient color for plot area background.
Glass lighting is a complex shading effect that gives a look and feel of tinted glass or semi-transparent plastic material. This effect involves glare and variation of lighting caused by reflection and refraction inside the material.
[Web Version (in ASP)] aspdemo\glassmultibar.asp
<%@ language="vbscript" %>
<%
Set cd = CreateObject("ChartDirector.API")
' The data for the bar chart
data0 = Array(100, 125, 245, 147, 67)
data1 = Array(85, 156, 179, 211, 123)
data2 = Array(97, 87, 56, 267, 157)
labels = Array("Mon", "Tue", "Wed", "Thur", "Fri")
' Create a XYChart object of size 540 x 375 pixels
Set c = cd.XYChart(540, 375)
' Add a title to the chart using 18pt Times Bold Italic font
Call c.addTitle("Average Weekly Network Load", "Times New Roman Bold Italic", 18)
' Set the plotarea at (50, 55) and of 440 x 280 pixels in size. Use a vertical gradient color from
' light blue (f9f9ff) to blue (6666ff) as background. Set border and grid lines to white (ffffff).
Call c.setPlotArea(50, 55, 440, 280, c.linearGradientColor(0, 55, 0, 335, &Hf9f9ff, &H6666ff), -1, _
&Hffffff, &Hffffff)
' Add a legend box at (50, 28) using horizontal layout. Use 10pt Arial Bold as font, with
' transparent background.
Call c.addLegend(50, 28, False, "Arial Bold", 10).setBackground(cd.Transparent)
' Set the x axis labels
Call c.xAxis().setLabels(labels)
' Draw the ticks between label positions (instead of at label positions)
Call c.xAxis().setTickOffset(0.5)
' Set axis label style to 8pt Arial Bold
Call c.xAxis().setLabelStyle("Arial Bold", 8)
Call c.yAxis().setLabelStyle("Arial Bold", 8)
' Set axis line width to 2 pixels
Call c.xAxis().setWidth(2)
Call c.yAxis().setWidth(2)
' Add axis title
Call c.yAxis().setTitle("Throughput (MBytes Per Hour)")
' Add a multi-bar layer with 3 data sets
Set layer = c.addBarLayer2(cd.Side)
Call layer.addDataSet(data0, &Hff0000, "Server #1")
Call layer.addDataSet(data1, &H00ff00, "Server #2")
Call layer.addDataSet(data2, &Hff8800, "Server #3")
' Set bar border to transparent. Use glass lighting effect with light direction from left.
Call layer.setBorderColor(cd.Transparent, cd.glassEffect(cd.NormalGlare, cd.Left))
' Configure the bars within a group to touch each others (no gap)
Call layer.setBarGap(0.2, cd.TouchBar)
' Output the chart
Set viewer = cd.WebChartViewer(Request, "chart1")
Call viewer.setChart(c, cd.SVG)
' Include tool tip for the chart
viewer.ImageMap = c.getHTMLImageMap("", "", _
"title='{dataSetName} on {xLabel}: {value} MBytes/hour'")
%>
<!DOCTYPE html>
<html>
<head>
<title>Glass Multi-Bar Chart</title>
<!-- Include ChartDirector Javascript Library to support chart interactions -->
<script type="text/javascript" src="cdjcv.js"></script>
</head>
<body style="margin:5px 0px 0px 5px">
<div style="font:bold 18pt verdana;">
Glass Multi-Bar Chart
</div>
<hr style="border:solid 1px #000080; background:#000080" />
<div style="font:10pt verdana; margin-bottom:1.5em">
<a href="viewsource.asp?file=<%= Request("SCRIPT_NAME") %>">View Chart Source Code</a>
</div>
<!-- ****** Here is the chart image ****** -->
<%= viewer.renderHTML() %>
</body>
</html>
[Windows Version (in Visual Basic)] vbdemo\glassmultibar.cls
Public Sub createChart(viewer As Object, chartIndex As Integer)
Dim cd As New ChartDirector.API
' The data for the bar chart
Dim data0()
data0 = Array(100, 125, 245, 147, 67)
Dim data1()
data1 = Array(85, 156, 179, 211, 123)
Dim data2()
data2 = Array(97, 87, 56, 267, 157)
Dim labels()
labels = Array("Mon", "Tue", "Wed", "Thur", "Fri")
' Create a XYChart object of size 540 x 375 pixels
Dim c As XYChart
Set c = cd.XYChart(540, 375)
' Add a title to the chart using 18pt Times Bold Italic font
Call c.addTitle("Average Weekly Network Load", "timesbi.ttf", 18)
' Set the plotarea at (50, 55) and of 440 x 280 pixels in size. Use a vertical gradient color
' from light blue (f9f9ff) to blue (6666ff) as background. Set border and grid lines to white
' (ffffff).
Call c.setPlotArea(50, 55, 440, 280, c.linearGradientColor(0, 55, 0, 335, &Hf9f9ff, &H6666ff), _
-1, &Hffffff, &Hffffff)
' Add a legend box at (50, 28) using horizontal layout. Use 10pt Arial Bold as font, with
' transparent background.
Call c.addLegend(50, 28, False, "arialbd.ttf", 10).setBackground(cd.Transparent)
' Set the x axis labels
Call c.xAxis().setLabels(labels)
' Draw the ticks between label positions (instead of at label positions)
Call c.xAxis().setTickOffset(0.5)
' Set axis label style to 8pt Arial Bold
Call c.xAxis().setLabelStyle("arialbd.ttf", 8)
Call c.yAxis().setLabelStyle("arialbd.ttf", 8)
' Set axis line width to 2 pixels
Call c.xAxis().setWidth(2)
Call c.yAxis().setWidth(2)
' Add axis title
Call c.yAxis().setTitle("Throughput (MBytes Per Hour)")
' Add a multi-bar layer with 3 data sets
Dim layer As BarLayer
Set layer = c.addBarLayer2(cd.Side)
Call layer.addDataSet(data0, &Hff0000, "Server #1")
Call layer.addDataSet(data1, &H00ff00, "Server #2")
Call layer.addDataSet(data2, &Hff8800, "Server #3")
' Set bar border to transparent. Use glass lighting effect with light direction from left.
Call layer.setBorderColor(cd.Transparent, cd.glassEffect(cd.NormalGlare, cd.Left))
' Configure the bars within a group to touch each others (no gap)
Call layer.setBarGap(0.2, cd.TouchBar)
' Output the chart
Set viewer.Picture = c.makePicture()
'include tool tip for the chart
viewer.ImageMap = c.getHTMLImageMap("clickable", "", _
"title='{dataSetName} on {xLabel}: {value} MBytes/hour'")
End Sub
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