
	 The AthenaTools Plotter Widget Set Version 6.0

	 CHANGES from Version 6-beta to Version 6.0

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 o Patchlevel 1

    - klin, Sun Jul 19 09:39:15 1992

    patchlevel.h added

    Plotter.h, Plotter.c

	Added the global function AtPlotterGetLegendWidth() to get the maximal
	legend width from within application programs to give the possibility
	that the legends of multiple plotters are of the same width.

	RecalcLegend() changed: returns True if legend width OR heigth changed.
	RedrawLegend() always calls RecalcLegend() and calculates the correct
	legend_y value.

    XYAxis.c

	Stop infinite loop in calculation of linear tic interval using a simple
	counter in procedure LinAxisRange(). This is a workaround only! The
	linear axis core should be rewritten.

    - klin, Wed Jul 22 09:32:26 1992

    AxisCore.c

	Ken Rempe (ken@caesar.uucp) reported a bug in the setvalues procedure
	when changing the axis label and sent a bug fix.

    - klin, Fri Jul 24 15:06:19 1992

    PlotterPS.c

    Fixed a bug in PostScript code for star marker.

 o Patchlevel 2

    - klin, Mon Jul 27 14:14:32 1992

    Plotter.h PlotterP.h Plotter.c PlotterPS.c

	Added the new resource XtNlegendLeft (legend_left) which defaults
	to False. Setting this resource to True causes the plotter to
	display the legend on the left hand side of the plotting area.

	Added the new resource XtNautoRedisplay (auto_redisplay) which
	defaults to True. Setting this resource to False causes the plotter
	to avoid redisplaying after changes. When then this resource is set
	to True the new full state is displayed. This may be useful to
	avoid unnecessary flickering when changing multiple values or to do
	not visible changes, i.e. when writing PostScript output with
	different line styles instead of colors.

	Added the new resource XtNuseCursor (use_cursors) which defaults
	to True. If this resource is set then the plotter will use
	different cursors when in click or drag callback.

	Added the new callback XtNbusyCallback. Procedures of the
	busy callback list are called when the plotter starts redisplay
	with callback data from type AtBusyCallbackData and the item
	busy set to True. When the plotter finished the redisplay process
	this item will be set to False.

	Added the new resource XtNusePixmap (use_pixmap) which defaults
	to False. If this resource is set the plotter draws to a pixmap
	instead to a window. This helps avoid flickering when data often
	change, but uses more memory, especially on color terminals.
	To implement this feature, the draw procedure of all of the plotters
	child widgets (axes and plots) and the AtText code had to be
	changed.

	Increased the valid plotting area in callbacks some pixels.

	AtPlotterGeneratePostscript() generates a core dump when the
	plotter widget is not realized. Bug reported by Gustaf Neumann
	at 92/07/27 (neumann@dec4.wu-wien.ac.at, neumann@awiwuw11.bitnet).

    AxisCore.h AxisCoreP.h AxisCore.c

	Added the public function AtAxisGetNumberWidth() which can be
	used by applications to get the current number width of an axis.
	Added the resource XtNnumberWidth (default_number_width) which
	defaults to 0. This resource can be used to set the number width
	to a default value, i.e. to align the axes of multiple plotters
	in one application after the maximal number width of the axes
	are requested using AtAxisGetNumberWidth().

    XY*.[ch]

	Shorter names for procedures

    XYLinePlot.c

	When drawing impulse plots in PostScript the first impulse was missing.
	Bug in DrawPS() fixed.

	Added the new line types AtPlotSTEPS and AtPlotBARS.

    XYAxis.c

	Register axis transform converter in the new class initialize
	procedure ClassInitialize(). Reported by Gustaf Neumann at 92/07/27.

    Text.c

	When destroying an NIL AtText object AtTextDestroy() generates
	a core dump. Fixed and reported by Gustaf Neumann at 92/07/27

 o patchlevel 3

    - klin, Sun Aug  2 18:25:42 1992

    XYAxis.c

	Accept initial min/max values set with XtNmin/XtNmax in Initialize().

    Plotter.h PlotterP.h Plotter.c

	Added the layout callback (layout_callback) which defaults to NULL
	and is called when the plotter is in layout. Client data of this
	callback of the new type AtAxisPositions contain the positions of
	the X and Y axes and may be changed by applications or other plotters
	to align the axes of multiple plotters in one application.
	The additional function AtPlotterGetAxisPositions() may be used to get
	the current axis positions, the procedure AtPlotterSetAxisPosition()
	may be used to set aligned positions. A better way to do such axis
	alignment would be to create a new plotter form widget which holds
	and manages his child plotters and exempts the user from doing this.

	Added the new resource XtNtitleHeight (default_title_height) which
	defaults to 0. This resource may be used to set a default height
	for the title text, for i.e. aligning multiple plotters. The real
	height of the title string can be requested with the new function
	AtPlotterGetTitleHeight().

	Internal callback EnterLeave() when entering or leaving the plotter
	window added. This callback is called when entering or leaving the
	plotter window to set appropiate cursors, i.e. when procs in the
	motion callback list are defined.

	Cursor resources XtNxxxCursor (xxx_cursor) added.

	Method query_geometry in QueryGeometry() added.

    FontFamily.h

	Defined all font resource names and classes within FontFamily.h.
	Include FontFamily.h in all modules which use this stuff.

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