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Rubberband box for object graphics [message #42542] Fri, 11 February 2005 03:39
Rainnie, JA \(John\) is currently offline  Rainnie, JA \(John\)
Messages: 2
Registered: February 2005
Junior Member
Hi

I'm delving into the IDL graphics objects, and specifically I wish to
develop a plot window using the IDLgrPlot class. Thanks to several
examples (mostly Dave Fanning's xPlot) I've mananged to do this.
However, I really need to implement a rubberband box so the user can
interactively zoom into this plot (like DF's zPlot). The conversion from
device to data coordinates is of course done in direct graphics with the
Convert_Coord function. However, I can't find any examples of how this
is done for object graphics.

Has anyone done this - and are there any examples you can direct me to.

Cheers

John

Dr. John A. Rainnie
Imaging Systems Division
Space Science and Technology Department
Rutherford Appleton Laboratory
Oxfordshire, OX11 0QX
UK
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