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NOAA-PMEL / LAS

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https://ferret.pmel.noaa.gov/LAS/
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Connecting the dots draws across long gaps #1717

Open karlmsmith opened 6 years ago

karlmsmith commented 6 years ago

Reported by @AnsleyManke on 17 Jun 2015 21:08 UTC When a cruise takes data, stops sampling, and then starts again, we simply draw a line connecting the measurements across that gap. This may mean drawing across an island, or appearing to fill in with color where no data was measured for a while.

(Dorothee interpreted this as an interpolation and asked: ''# Cruise tracks with few data interpolate across land. Also interpolation of sparse ocean data generates strange looking features. Would it be possible to stop the interpolation if the distance exceeds a certain value? Ideally this is resolved before version 3 is made public.'' )

Perhaps we could introduce a graphics style within Ferret that would take an argument and stop a color line when the next point is more than xx distance away?

For decimated data, could such a capability be put into the piecewise decimation function?

Migrated-From: http://dunkel.pmel.noaa.gov/trac/las/ticket/1708

karlmsmith commented 6 years ago

Modified by @AnsleyManke on 17 Jun 2015 21:08 UTC

karlmsmith commented 6 years ago

Comment by @AnsleyManke on 17 Jun 2015 21:20 UTC The other issue is whether and when to draw the black line that indicates missing data along the ship track. These are useful for viewing one or a few cruises, but clutter the plot up with large amounts of data.