ChartDirector 7.0 (ASP/COM/VB Edition)
Scattered Data Contour Chart
Source Code Listing
<%@ language="vbscript" %>
<%
Set cd = CreateObject("ChartDirector.API")
' The (x, y, z) coordinates of the scattered data
dataX = Array(0.5, 1.9, 4.9, 1.0, 8.9, 9.8, 5.9, 2.9, 6.8, 9.0, 0.0, 8.9, 1.9, 4.8, 2.4, 3.4, 7.9, _
7.5, 4.8, 7.5, 9.5, 0.4, 8.9, 0.9, 5.4, 9.4, 2.9, 8.9, 0.9, 8.9, 10.0, 1.0, 6.8, 3.8, 9.0, _
5.3, 6.4, 4.9, 4.5, 2.0, 5.4, 0.0, 10.0, 3.9, 5.4, 5.9, 5.8, 0.3, 4.4, 8.3)
dataY = Array(3.3, 3.0, 0.7, 1.0, 9.3, 4.5, 8.4, 0.1, 0.8, 0.1, 9.3, 1.8, 4.3, 1.3, 2.3, 5.4, 6.9, _
9.0, 9.8, 7.5, 1.8, 1.4, 4.5, 7.8, 3.8, 4.0, 2.9, 2.4, 3.9, 2.9, 2.3, 9.3, 2.0, 3.4, 4.8, 2.3, _
3.4, 2.3, 1.5, 7.8, 4.5, 0.9, 6.3, 2.4, 6.9, 2.8, 1.3, 2.9, 6.4, 6.3)
dataZ = Array(6.6, 12.5, 7.4, 6.2, 9.6, 13.6, 19.9, 2.2, 6.9, 3.4, 8.7, 8.4, 7.8, 8.0, 9.4, 11.9, _
9.6, 15.7, 12.0, 13.3, 9.6, 6.4, 9.0, 6.9, 4.6, 9.7, 10.6, 9.2, 7.0, 6.9, 9.7, 8.6, 8.0, 13.6, _
13.2, 5.9, 9.0, 3.2, 8.3, 9.7, 8.2, 6.1, 8.7, 5.6, 14.9, 9.8, 9.3, 5.1, 10.8, 9.8)
' Create a XYChart object of size 450 x 540 pixels
Set c = cd.XYChart(450, 540)
' Add a title to the chart using 15 points Arial Italic font
Call c.addTitle(" Contour Chart with Scattered Data", "Arial Italic", 15)
' Set the plotarea at (65, 40) and of size 360 x 360 pixels. Use semi-transparent black (c0000000)
' for both horizontal and vertical grid lines
Call c.setPlotArea(65, 40, 360, 360, -1, -1, -1, &Hc0000000, -1)
' Set x-axis and y-axis title using 12 points Arial Bold Italic font
Call c.xAxis().setTitle("X-Axis Title Place Holder", "Arial Bold Italic", 10)
Call c.yAxis().setTitle("Y-Axis Title Place Holder", "Arial Bold Italic", 10)
' Set x-axis and y-axis labels to use Arial Bold font
Call c.xAxis().setLabelStyle("Arial Bold")
Call c.yAxis().setLabelStyle("Arial Bold")
' When x-axis and y-axis color to transparent
Call c.xAxis().setColors(cd.Transparent)
Call c.yAxis().setColors(cd.Transparent)
' Add a scatter layer to the chart to show the position of the data points. Disable the image map
' for the scatter layer. We will use the contour layer to provide the tooltip.
Call c.addScatterLayer(dataX, dataY, "", cd.Cross2Shape(0.2), 7, &H000000).setHTMLImageMap( _
"{disable}")
' Add a contour layer using the given data
Set layer = c.addContourLayer(dataX, dataY, dataZ)
' Move the grid lines in front of the contour layer
Call c.getPlotArea().moveGridBefore(layer)
' Add a color axis (the legend) in which the top center is anchored at (245, 455). Set the length to
' 330 pixels and the labels on the top side.
Set cAxis = layer.setColorAxis(245, 455, cd.TopCenter, 330, cd.Top)
' Add a bounding box to the color axis using the default line color as border.
Call cAxis.setBoundingBox(cd.Transparent, cd.LineColor)
' Add a title to the color axis using 12 points Arial Bold Italic font
Call cAxis.setTitle("Color Legend Title Place Holder", "Arial Bold Italic", 10)
' Set color axis labels to use Arial Bold font
Call cAxis.setLabelStyle("Arial Bold")
' Set the color axis range as 0 to 20, with a step every 2 units
Call cAxis.setLinearScale(0, 20, 2)
' Output the chart
Set viewer = cd.WebChartViewer(Request, "chart1")
Call viewer.setChart(c, cd.SVG)
' Include CDML tool tip for the chart.
viewer.ImageMap = c.getHTMLImageMap("", "", _
"title='<*cdml*><*b*>X: {x|2}<*br*>Y: {y|2}<*br*>Z: {z|2}'")
' Output Javascript chart model to support contour chart tooltips
viewer.ChartModel = c.getJsChartModel()
%>
<!DOCTYPE html>
<html>
<head>
<title>Scattered Data Contour 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;">
Scattered Data Contour 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>
Public Sub createChart(viewer As Object, chartIndex As Integer)
Dim cd As New ChartDirector.API
' The (x, y, z) coordinates of the scattered data
Dim dataX()
dataX = Array(0.5, 1.9, 4.9, 1.0, 8.9, 9.8, 5.9, 2.9, 6.8, 9.0, 0.0, 8.9, 1.9, 4.8, 2.4, 3.4, _
7.9, 7.5, 4.8, 7.5, 9.5, 0.4, 8.9, 0.9, 5.4, 9.4, 2.9, 8.9, 0.9, 8.9, 10.0, 1.0, 6.8, 3.8, _
9.0, 5.3, 6.4, 4.9, 4.5, 2.0, 5.4, 0.0, 10.0, 3.9, 5.4, 5.9, 5.8, 0.3, 4.4, 8.3)
Dim dataY()
dataY = Array(3.3, 3.0, 0.7, 1.0, 9.3, 4.5, 8.4, 0.1, 0.8, 0.1, 9.3, 1.8, 4.3, 1.3, 2.3, 5.4, _
6.9, 9.0, 9.8, 7.5, 1.8, 1.4, 4.5, 7.8, 3.8, 4.0, 2.9, 2.4, 3.9, 2.9, 2.3, 9.3, 2.0, 3.4, _
4.8, 2.3, 3.4, 2.3, 1.5, 7.8, 4.5, 0.9, 6.3, 2.4, 6.9, 2.8, 1.3, 2.9, 6.4, 6.3)
Dim dataZ()
dataZ = Array(6.6, 12.5, 7.4, 6.2, 9.6, 13.6, 19.9, 2.2, 6.9, 3.4, 8.7, 8.4, 7.8, 8.0, 9.4, _
11.9, 9.6, 15.7, 12.0, 13.3, 9.6, 6.4, 9.0, 6.9, 4.6, 9.7, 10.6, 9.2, 7.0, 6.9, 9.7, 8.6, _
8.0, 13.6, 13.2, 5.9, 9.0, 3.2, 8.3, 9.7, 8.2, 6.1, 8.7, 5.6, 14.9, 9.8, 9.3, 5.1, 10.8, _
9.8)
' Create a XYChart object of size 450 x 540 pixels
Dim c As XYChart
Set c = cd.XYChart(450, 540)
' Add a title to the chart using 15 points Arial Italic font
Call c.addTitle(" Contour Chart with Scattered Data", "ariali.ttf", 15)
' Set the plotarea at (65, 40) and of size 360 x 360 pixels. Use semi-transparent black
' (c0000000) for both horizontal and vertical grid lines
Call c.setPlotArea(65, 40, 360, 360, -1, -1, -1, &Hc0000000, -1)
' Set x-axis and y-axis title using 12 points Arial Bold Italic font
Call c.xAxis().setTitle("X-Axis Title Place Holder", "arialbi.ttf", 10)
Call c.yAxis().setTitle("Y-Axis Title Place Holder", "arialbi.ttf", 10)
' Set x-axis and y-axis labels to use Arial Bold font
Call c.xAxis().setLabelStyle("arialbd.ttf")
Call c.yAxis().setLabelStyle("arialbd.ttf")
' When x-axis and y-axis color to transparent
Call c.xAxis().setColors(cd.Transparent)
Call c.yAxis().setColors(cd.Transparent)
' Add a scatter layer to the chart to show the position of the data points
Call c.addScatterLayer(dataX, dataY, "", cd.Cross2Shape(0.2), 7, &H000000)
' Add a contour layer using the given data
Dim layer As ContourLayer
Set layer = c.addContourLayer(dataX, dataY, dataZ)
' Move the grid lines in front of the contour layer
Call c.getPlotArea().moveGridBefore(layer)
' Add a color axis (the legend) in which the top center is anchored at (245, 455). Set the
' length to 330 pixels and the labels on the top side.
Dim cAxis As ColorAxis
Set cAxis = layer.setColorAxis(245, 455, cd.TopCenter, 330, cd.Top)
' Add a bounding box to the color axis using the default line color as border.
Call cAxis.setBoundingBox(cd.Transparent, cd.LineColor)
' Add a title to the color axis using 12 points Arial Bold Italic font
Call cAxis.setTitle("Color Legend Title Place Holder", "arialbi.ttf", 10)
' Set color axis labels to use Arial Bold font
Call cAxis.setLabelStyle("arialbd.ttf")
' Set the color axis range as 0 to 20, with a step every 2 units
Call cAxis.setLinearScale(0, 20, 2)
' Output the chart
Set viewer.Picture = c.makePicture()
End Sub