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Re: Tick label with Imager::Plot
From: Etienne Goyer (06637@xyz.molar.is)
Date: Tue 07 Jan 2003 - 15:06:13 GMT
Next message: Arnar Mar Hrafnkelsson: "Vacation + relocation"
I found the answer to my question. I am posting it here in the hope it
could be useful for somebody else.
%opts{"Xformat"} in Imager::Plot::Axis as a reference to function that
is executed on each tick label before being rendered. To access it thru
your Imager::Plot object (thanks, Data::Dumper) :
$graph->{'AXIS'}{'Xformat'} = sub {
my @ticks = localtime(shift);
return sprintf("%02d:%02d:%02d %d/%d/%02d",
$ticks[2], $ticks[1], $ticks[0], $ticks[3], $ticks[4] + 1,
$ticks[5] > 99 ? substr($ticks[5], 2, 2) : $ticks[5]);
};
where $graph is your Imager::Plot object.
On Mon, Jan 06, 2003 at 02:23:23PM -0500, Etienne Goyer wrote:
> Hi,
>
> I am using Imager::Plot to plot some data. I would like to change the
> tick label on the X axis. The doc hint to it but I can't find details
> or example.
>
> Here is my problem : I have some data for which the X value is a Unix
> timestamp. Obviously, "1041534900" is not telling much to the user.
> Saying "Jan 2 2003 14:05:00" would be much more appropriate. So what I
> wuld like is a way to tell my Imager::Plot object that "1041534900"
> should be labelled as "Jan 2 2003 14:05:00" instead.
>
> As usual, an example is worth a thousand man page ! :)
>
> Thanks for your help. So far, I must say that Imager::Plot is the best
> module I found on CPAN for plotting. At least, it's the one producing
> the nicest graph, so I look forward to solving this issue.
>
> --
> Etienne Goyer Linux Québec Technologies Inc.
> http://www.LinuxQuebec.com 06637@xyz.molar.is
> PGP Pub Key: http://www.LinuxQuebec.com/pubkeys/eg.key
> Fingerprint: F569 0394 098A FC70 B572 5D20 3129 3D86 8FD5 C853
>
>
--
Etienne Goyer Linux Québec Technologies Inc.
http://www.LinuxQuebec.com 06637@xyz.molar.is
PGP Pub Key: http://www.LinuxQuebec.com/pubkeys/eg.key
Fingerprint: F569 0394 098A FC70 B572 5D20 3129 3D86 8FD5 C853
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