Re: [Gnuplot-info] HTML image maps

[Stephen D. <sc...@sd...>]

Perfect!

Thank you very much.

Stephen

On Friday 11 December 2009 05:16:08 Thomas Sefzick wrote:
> "%s" is not implemented - but it should be implemented.
>
> i uploaded a patch to sourceforge which repairs this.
>
> scldad wrote:
> > Thank you Thomas.
> >
> > This looks very promising.
> >
> > The initial plot image is good.
> >
> > However, when I do the replot with a table set, the X coordinates
> > (date/time)
> > do not seem to follow the rules in the doco.
> >
> > I did:
> >
> > set table "/tmp/pdata"
> > set xdata time
> > set timefmt "%Y-%m-%d_%H:%M:%S"
> > set format x "%s"
> > plot "/tmp/data" using 1:2 with lines
> > unset table
> >
> > /tmp/pdata contains lines of the format:
> >
> > ""  5.489  i
> >
> > If I omit the set format x, I get lines of the format:
> >
> > "g"  5.489  i
> >
> > How do I get the date/time x values output as seconds?
> > (GPVAL_X_MIN value implies that these are the units plotted.)
> >
> > Cheers and thanks,
> > Stephen
> >
> > On Wednesday 09 December 2009 19:04:55 Thomas Sefzick wrote:
> >> after plotting a whole bunch of variables is set, see 'show variables
> >> all'.
> >> amongst these variables there are
> >> GPVAL_TERM_XMIN, GPVAL_TERM_XMAX,
> >> GPVAL_TERM_YMIN, GPVAL_TERM_YMAX
> >> which give the corners of the graph in pixels.
> >> (you need version 4.4)
> >>
> >> together with the information in
> >> GPVAL_X_MIN, GPVAL_X_MAX, ...
> >> it should be easy to translate data point coordinates into
> >> pixels.
> >>
> >> you should generate your plot, then replot with 'set table <filename>'
> >> the resulting file should contain all of your data points in graph
> >> coordinates which with the above variables you may convert into
> >> terminal screen coordinates.
> >>
> >> scldad wrote:
> >> > I have seen this question before but not any answers.
> >> >
> >> > I need to generate plots of data where the X axis is always date/time.
> >> >
> >> > These plot image files will be included in web pages via img tags.
> >> >
> >> > I also need to make the resulting web image "clickable" via an image
> >>
> >> map
> >>
> >> > so
> >> > that viewers can see the original data values.
> >> >
> >> > How can one generate the relevant HTML image maps (or some form of
> >> > text file
> >> > with identifiable coordinate pairs) with gnuplot?
> >> >
> >> > (I currently do this with grace plots by replicating the PNG plots
> >> > with the
> >> > Metadata output option and feeding the results plus the original data
> >> > file through a gawk script.)
> >> >
> >> > TIA,
> >> > Stephen Davies
> >> > --
> >>
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-- 
=============================================================================
Stephen Davies Consulting P/L                             Voice: 08-8177 1595
Adelaide, South Australia.                                Fax  : 08-8177 0133
Computing & Network solutions.                            Mobile:040 304 0583