Re: [Gnuplot-info] HTML image maps

[Thomas S. <t.s...@fz...>]

"%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
>> > --
>> >
>> =========================================================================
>> >==== Stephen Davies Consulting P/L                             Voice:
>> > 08-8177 1595
>> > Adelaide, South Australia.                                Fax  :
>> 08-8177
>> > 0133
>> > Computing & Network solutions.                            Mobile:040
>> 304
>> > 0583
>> >
>> > VoIP:sip:11...@si...
>> >
>> >
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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
> 
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