Re: Change of cvs at 2007-08-31 Ethan Merritt only for x11 but not for win

[Ethan A M. <merritt@u.washington.edu>]

On Thursday 07 February 2008 02:30, Tatsuro MATSUOKA wrote:
> 
> I have tested gragh plotting by a cvs(08-02-02) version (4.3) of pgnuplot+wgnuplot using a little bit
> old octave (2.9.17, which does not send binary data from pipe).
> 
> (CVS wgnuplot was downloades from the following
> http://www.ring.gr.jp/pub/text/TeX/ptex-win32/utils/ )
> 
> The mouse zooming was not possible.

Does mouse zooming work for plots with no data?
For example, "plot sin(x)"?
 
> I would like to confirm whether the change at 2007-08-31 after '***************'for only for x11
> terminal but not for win terminal or not.

That change did not touch any terminal drivers.
It affects the handling of plots with in-lines data   (plot '-').
This is usually ascii data, not binary.

> It can be readable the change is not x11 specific.

Correct. The change is not x11 specific.

> Are there other possibilities?

I know very little about the Windows version of the program.
Perhaps someone else will have a suggestion.

	regards,

		Ethan


> 
> Regards
> 
> Tatsuro
> 
> 
> 
> *****************************************
> 2007-08-31  Ethan Merritt  <merritt@u.washington.edu>
> 
> 	Version 2.9.? of Octave switched to piping all data to gnuplot in-line
> 	rather than via a temporary file.  This broke mouse zooming and replot.
> 
> 	This patchset is an imperfect fix with several known problems:
> 	- Clipping of zoomed 3D contour plots is not correct.
> 	- splot volatile with image + zoom + unzoom is flaky
> 	- plot -> zoom -> set grid -> unzoom   loses the grid setting.
> 	- you cannot toggle log scaling on/off while using refresh.
> 
> 	Introduce a new command "refresh" that acts like replot except that it
> 	does not re-read the input data.  Refresh is always needed in order to
> 	zoom or replot in-line data (input file '-'), but may optionally applied
> 	to normal data files also by appending the attribute 'volatile'.
> 
> 	* src/plot2d.c (eval_plots): This is the core change. Instead of 
> 	freeing stored data after each plot, keep it around in case of a
> 	refresh command. The old data storage is freed at the start of the next
> 	"plot" or "replot" command.  This is parallel to what the 3D code was
> 	already doing. Set refresh_ok = 2  at the end of a successful plot.
> 
> 	* src/plot3d.c (eval_3dplots): Update comments and remove dead code.
> 	Set refresh_ok = 3  at the end of a successful plot.
> 
> 	* src/plot2d.c (refresh_bounds) src/plot2d.h
> 	* src/plot3d.c (refresh_3dbounds) src/plot3d.h:
> 	Provide a mechanism to recheck the INBOUNDS/OUTBOUNDS status of 
> 	existing data points after changing the current axis limits.
> 
> 	* src/command.c (refresh_command refresh_request) src/command.h
> 	src/gadgets.c src/gadgets.h src/tables.c:  New command "refresh" that
> 	acts similarly to "replot" except that it does not re-read input data.
> 
> 	* src/axis.h (AXIS_UPDATE2D): Save/restore axis limits for zooming.
> 
> 	* src/mouse.c (apply_zoom): Choose between refresh or replot depending
> 	on whether the current plot contain volatile data.
> 
> 	* src/mouse.c (builtin_toggle_log): Ignore 'l' and 'L' for volatile data
> 
> 	* src/set.c (set_logscale) src/unset.c (unset_logscale):
> 	Because setting or unsetting log scale changes the way input data is
> 	stored, "refresh" cannot work if the log setting has changed.
> 	Set a flag indicating that a full replot is necessary.
> 
> 	* src/datafile.c (df_open): Accept a "volatile" keyword to indicate
> 	that data in the input file may change. If data is input from pseudo-
> 	device '-' or from a file marked "volatile", set a global flag so
> 	that mousing/zooming/etc can choose to refresh rather than replot.
> 
> 	* docs/gnuplot.doc configure.in
> 
> 
> 
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-- 
Ethan A Merritt
Biomolecular Structure Center
University of Washington, Seattle 98195-7742