Path: C:\
<%@ language="vbscript" %>
<%
Set cd = CreateObject("ChartDirector.API")
'
' Initialize the WebChartViewer when the page is first loaded
'
Sub initViewer(viewer)
' The full x-axis range is from Jan 1, 2007 to Jan 1, 2012
startDate = DateSerial(2007, 1, 1)
endDate = DateSerial(2012, 1, 1)
Call viewer.setFullRange("x", startDate, endDate)
' Initialize the view port to show the last 366 days (out of 1826 days)
viewer.ViewPortWidth = 366.0 / 1826
viewer.ViewPortLeft = 1 - viewer.ViewPortWidth
' Set the maximum zoom to 10 days (out of 1826 days)
viewer.ZoomInWidthLimit = 10.0 / 1826
End Sub
'
' Draw the chart
'
Sub drawChart(viewer)
' Determine the visible x-axis range
viewPortStartDate = cd.NTime(viewer.getValueAtViewPort("x", viewer.ViewPortLeft))
viewPortEndDate = cd.NTime(viewer.getValueAtViewPort("x", viewer.ViewPortLeft + _
viewer.ViewPortWidth))
' We need to get the data within the visible x-axis range. In real code, this can be by using a
' database query or some other means as specific to the application. In this demo, we just
' generate a random data table, and then select the data within the table.
' Generate the random data table
Set r = cd.RanTable(127, 4, 1828)
Call r.setDateCol(0, DateSerial(2007, 1, 1), 86400)
Call r.setCol(1, 150, -10, 10)
Call r.setCol(2, 200, -10, 10)
Call r.setCol(3, 250, -8, 8)
' Select the data for the visible date range viewPortStartDate to viewPortEndDate. It is
' possible there is no data point at exactly viewPortStartDate or viewPortEndDate. In this case,
' we also need the data points that are just outside the visible date range to "overdraw" the
' line a little bit (the "overdrawn" part will be clipped to the plot area) In this demo, we do
' this by adding a one day margin to the date range when selecting the data.
Call r.selectDate(0, DateAdd("d", -1, viewPortStartDate), DateAdd("d", 1, viewPortEndDate))
' The selected data from the random data table
timeStamps = r.getCol(0)
dataSeriesA = r.getCol(1)
dataSeriesB = r.getCol(2)
dataSeriesC = r.getCol(3)
'
' Now we have obtained the data, we can plot the chart.
'
'================================================================================
' Configure overall chart appearance.
'================================================================================
' Create an XYChart object 600 x 300 pixels in size, with pale blue (f0f0ff) background, black
' (000000) rounded border, 1 pixel raised effect.
Set c = cd.XYChart(600, 300, &Hf0f0ff, &H000000)
Call c.setRoundedFrame()
' Set the plotarea at (52, 60) and of size 520 x 205 pixels. Use white (ffffff) background.
' Enable both horizontal and vertical grids by setting their colors to grey (cccccc). Set
' clipping mode to clip the data lines to the plot area.
Call c.setPlotArea(55, 60, 520, 205, &Hffffff, -1, -1, &Hcccccc, &Hcccccc)
' As the data can lie outside the plotarea in a zoomed chart, we need to enable clipping.
Call c.setClipping()
' Add a top title to the chart using 15 pts Times New Roman Bold Italic font, with a light blue
' (ccccff) background, black (000000) border, and a glass like raised effect.
Call c.addTitle("Product Line International Market Price", "timesbi.ttf", 15).setBackground( _
&Hccccff, &H000000, cd.glassEffect())
' Add a legend box at the top of the plot area with 9pts Arial Bold font with flow layout.
Call c.addLegend(50, 33, False, "arialbd.ttf", 9).setBackground(cd.Transparent, cd.Transparent)
' Set axes width to 2 pixels
Call c.xAxis().setWidth(2)
Call c.yAxis().setWidth(2)
' Add a title to the y-axis
Call c.yAxis().setTitle("Price (USD)", "arialbd.ttf", 10)
'================================================================================
' Add data to chart
'================================================================================
'
' In this example, we represent the data by lines. You may modify the code below to use other
' representations (areas, scatter plot, etc).
'
' Add a line layer for the lines, using a line width of 2 pixels
Set layer = c.addLineLayer2()
Call layer.setLineWidth(2)
' In this demo, we do not have too many data points. In real code, the chart may contain a lot
' of data points when fully zoomed out - much more than the number of horizontal pixels in this
' plot area. So it is a good idea to use fast line mode.
Call layer.setFastLineMode()
' Now we add the 3 data series to a line layer, using the color red (ff0000), green (00cc00) and
' blue (0000ff)
Call layer.setXData(timeStamps)
Call layer.addDataSet(dataSeriesA, &Hff0000, "Product Alpha")
Call layer.addDataSet(dataSeriesB, &H00cc00, "Product Beta")
Call layer.addDataSet(dataSeriesC, &H0000ff, "Product Gamma")
'================================================================================
' Configure axis scale and labelling
'================================================================================
' Set the x-axis as a date/time axis with the scale according to the view port x range.
Call viewer.syncDateAxisWithViewPort("x", c.xAxis())
' In this demo, we rely on ChartDirector to auto-label the axis. We ask ChartDirector to ensure
' the x-axis labels are at least 75 pixels apart to avoid too many labels.
Call c.xAxis().setTickDensity(75)
'================================================================================
' Output the chart
'================================================================================
' Output the chart
chartQuery = c.makeSession(Session, viewer.Id)
' Include tool tip for the chart
imageMap = c.getHTMLImageMap("", "", "title='[{dataSetName}] {x|mmm dd, yyyy}: USD {value|2}'")
' Set the chart URL, image map and chart metrics to the viewer
viewer.ImageUrl = "getchart.asp?" & chartQuery
viewer.ImageMap = imageMap
viewer.ChartMetrics = c.getChartMetrics()
End Sub
'
' This script handles both the full page request, as well as the subsequent partial updates (AJAX
' chart updates). We need to determine the type of request first before we processing it.
'
' Create the WebChartViewer object
Set viewer = cd.WebChartViewer(Request, "chart1")
If viewer.IsPartialUpdateRequest Then
' Is a partial update request. Draw the chart and perform a partial response.
Call drawChart(viewer)
Response.Write viewer.partialUpdateChart()
Response.End
End If
'
' If the code reaches here, it is a full page request.
'
' In this exapmle, we just need to initialize the WebChartViewer and draw the chart.
Call initViewer(viewer)
Call drawChart(viewer)
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>Simple Zooming and Scrolling</title>
<script type="text/javascript" src="cdjcv.js"></script>
</head>
<body style="margin:0px;">
<script type="text/javascript">
//
// Execute the following initialization code after the web page is loaded
//
JsChartViewer.addEventListener(window, 'load', function() {
// Update the chart when the view port has changed (eg. when the user zooms in using the mouse)
var viewer = JsChartViewer.get('<%=viewer.Id%>');
viewer.attachHandler("ViewPortChanged", viewer.partialUpdate);
// Set the initial mouse usage to "scroll"
viewer.setMouseUsage(JsChartViewer.Scroll);
document.getElementById("scrollChart").checked = true;
});
</script>
<form method="post">
<table cellspacing="0" cellpadding="0" border="0">
<tr>
<td align="right" colspan="2" style="background:#000088">
<div style="padding:0px 3px 2px 0px; font:italic bold 10pt Arial;">
<a style="color:#FFFF00; text-decoration:none" href="http://www.advsofteng.com/">Advanced Software Engineering</a>
</div>
</td>
</tr>
<tr valign="top">
<td style="width:127px; background:#c0c0ff; border-right:black 1px solid; border-bottom:black 1px solid;">
<div style="font:9pt Verdana; padding:10px 0px 0px 3px; line-height:1.5; width:127px">
<!-- The onclick handler of the following radio buttons sets the mouse usage mode. -->
<input name="mouseUsage" id="scrollChart" type="radio"
onclick="JsChartViewer.get('<%=viewer.Id%>').setMouseUsage(JsChartViewer.Scroll)" />
Drag To Scroll<br />
<input name="mouseUsage" id="zoomInChart" type="radio"
onclick="JsChartViewer.get('<%=viewer.Id%>').setMouseUsage(JsChartViewer.ZoomIn)" />
Zoom In<br />
<input name="mouseUsage" id="zoomOutChart" type="radio"
onclick="JsChartViewer.get('<%=viewer.Id%>').setMouseUsage(JsChartViewer.ZoomOut)" />
Zoom Out<br />
</div>
</td>
<td>
<div style="font-weight:bold; font-size:20pt; margin:5px 0px 0px 5px; font-family:Arial">
Simple Zooming and Scrolling
</div>
<hr style="border:solid 1px #000080" />
<div style="padding:0px 5px 5px 10px">
<!-- ****** Here is the chart image ****** -->
<%=viewer.renderHTML()%>
</div>
</td>
</tr>
</table>
</form>
</body>
</html>