The "Fast Ping" is an application written by our customer. We put it in the gallery just to provide an example of a real application written with ChartDirector. As the application is written by our customer, we do not have the source code.
As far as I know, the application is written based on the "Multi-threading Real-Time Chart" sample code in our library:
Our client simply modified the code by replacing the "random number generator" in the sample code with a "ping" driver. He also modifies the chart style to have the y-axis labels inside the plot area and to make the chart resize with the window like in the "Real-Time Sweep Chart" sample code in the above library page.
For your own application, may be you can start with the "Multi-threading Real-Time Chart" by using your own data acquisition method to replace the random number generator. After it is working, you can change the chart style to fit your own needs.