In case anyone else out there is thinking of writing an input device for
Java3D, using the CommAPI, I thought I'd pass on this little experience.
It appears that (at least on WindowsNT) there is a small bug, where
reads from the InputStream returned by a SerialPort device will
sometimes block for min(200ms, TimeOut) (where TimeOut is the timeout
value you set for your input stream).
The workaround is to set your timeout value nice and low -- since I'm
reading from a tracker that is streaming data at 119200 baud, I set it
to 1ms timeout, and things seem to be quite happy.
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