RE: Getting subset of data that is currently in view

[Gordon Milne <Gordon.Milne@SYFT.COM>]

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Andrew,

You could call getRange() to get the current X, Y limits of the graph
and then use the result to select the data to insert into your text tab.

You could then subclass JPlotLayout and add a getDataShowing method
which does this for you.

All the best,

Gordon J Milne
Software Engineer, Syft Technologies

-----Original Message-----
From: owner-sgt@epic.noaa.gov [mailto:owner-sgt@epic.noaa.gov] On Behalf
Of Chase, Andrew
Sent: Saturday, 10 January 2004 8:07 a.m.
To: 'sgt@epic.noaa.gov'
Subject: Getting subset of data that is currently in view


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Hi,

Is it possible to get data back from JPlotLayout that is a subset of all
the data in JPlotLayout which only represents the data that is currently
displayed by the user? I have an application with two tabs, one for
displaying the data with SGT and another tab which displays the data in
its raw number form. I'd like the raw number form to update itself to
only display the raw numbers for the part of the graph which is being
viewed in the SGT tab. I'm not so concerned with the Y-Axis, only the
X-Axis, which is a time axis.

The only data access method I've for JPlotLayout objects is getData(), I
guess what I'm looking for is a getDataShowing() type of method.

Thanks,
Andrew

Andrew C. Chase
Software Applications Developer
Monterey Bay Aquarium Research Institute

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