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November 9, 2000: Release of POW (as part of fv3.0)
* Scripting: added delete, remove, graph, contour, remote, wcs, init,
cursor, and "colormap add"; expanded curve command to allow setting
default parameters for curves not yet plotted/created.
* Printing: fixed printing of line plots in color; image printing on
Windows and Mac OS fixed with upgrade to tcl/tk 8.3.2; background
no longer printed (was printed as white) and UI elements no longer
obscure graph contents.
* Tools: Added Ruler, Probe, and Profile tools...
Ruler: Measures the distance between to points on a graph
Probe: Calculates flux and centroid values for a region of an image
Profile: Extracts an image cross-section and plots its intensity.
* Redesigned region file handling to support new DS9 formats.
* Make use of WCS transform matrices.
* Added user-selectable default graph size and made this argument optional
for powCreateGraph function.
* Tick labels on graphs with celestial coordinates adjust their precision
according to current range.
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