I wrote Windows application for viewing data from the Ciclsport HAC4 cyclocomputer. It is *very early* alpha, and only opens '.dat' (not tour) files. It also doesn't upload data from the cyclocomputer yet. But it has interactive plots, allowing you to:
* zoom in on subsections of the plot * overlay plots * plot things like heart rate versus gradient
In addition, it shows a pie chart indicating heart rate zones. More information can be found at www.digitalbiology.com/hac4. As I indicated, it is in a very early stage of development, but you still may find it useful. Feel free to download and play with it.
