Re: Creating 2D graphic strip chart with trace wrapping

Markus Svilans wrote:
Hi,

I am writing an application to display a 2D graphic strip chart of
data.

The dynamic range of some of the data traces is quite large, so I would
like to wrap them between upper and lower limits. If the data value
"shoots through" the upper limit, it re-enters from the lower limit. If
the data value "drops through" the lower limit, it re-enters from the
upper limit.

Is there an OpenGL strategy to automate the trace wrapping? Is it
somehow possible to reflect the 2D line at the upper and lower bounds,
to reappear at the opposite bound?

Render three times -- one for the proper range, one to put what falls above
the upper bound back in the visible range and one to put what falls below the
lower bound in the visible range.

If it wraps more than that, I would question the wisdom of the approach.

--
Andy V
.

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