ColdFusion Developer's Guide

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You can save the chart as a Flash SWF file, or as a JPEG or PNG image file. If you save the
image as a SWF file, you can pass the variable back to a Flash client using ColdFusion Flash
Remoting. For more information, see Chapter 35, “Using the Flash Remoting Service.”
NOTE
If you write the chart to a JPEG or PNG file, mouseover tips and URLs embedded in the
chart for data drill-down do not work when you redisplay the image from the file.
However, if you save the image as a SWF file, both tips and drill-down URLs work. For
more information on data drill-down, see “Linking charts to URLs” on page 1146.
To write a chart to a variable and a file:
1. Create a new ColdFusion page with the following content:
2. Save the page as chartToFile.cfm in myapps under the web root directory.
3. View the chartToFile.cfm page in your browser.
Reviewing the code
The following table describes the highlighted code and its function:
Code Description
Define a chart written to the myChart variable
using the JPEG format.
Use the tag to write the chart to a file.
Use the HTML img tag to display the chart.
Writing a chart to a variable 1145