gnuplot-info — For questions and discussion about gnuplot

[Gnuplot-info] gnuplot 4.2 world.dat and world.cor files

[Anirban B. <ban...@gm...>]

Hi everyone,
                  Can someone please let me know how to correctly make a map
with points located on the continents on the Earth. I looked up the
world.dem stuff on the gnuplot site and found that they refer to 2 files,
world.dat and world.cor, does anyone what these files contain or where I can
download them from?

I have a list of Latitude and Longitudes which I would lie to plot on the
map of the Earth, and would like to use gnuplot for it. Does anyone know if
using Google Earth would be easier/better for a 2d image?

Thanks,
-A

[Gnuplot-info] Difficulty getting wxWidgets to work

[R. D. R. <ro...@rd...>]

Hello,

I need help.  I've been tasked with building a version of gnuplot 4.2 
using wxWidgets and
gtk2.  I'm doing this on a SLES 9 system, so I downloaded many of the 
constituent
kits, built them along with gtk2 and wxWidgets and "successfully" linked 
a gnuplot executable.

I start gnuplot:

./gnuplot

Terminal type set to 'wxt'
gnuplot> plot x*x
Failed to initialize wxWidgets.
gnuplot>

Here is a list of kit versions that I'm using:

atk-1.18.0.tar.gz
cairo-1.4.2.tar.gz
gd-2.0.34.tar.gz
glib-2.12.11.tar.gz
gnuplot-4.2.0.tar.gz
gtk+-2.10.11.tar.gz
libpng-1.2.16.tar.gz
pango-1.16.1.tar.gz
wxWidgets-2.8.2.tar.gz
zlib-1.2.3.tar.gz

What can I do to diagnose the failure?  Is there a log somewhere I can 
view? 
Any help is much appreciated.

Thanks,

Ron

Re: [Gnuplot-info] pm3d with sparse data

[<HBB...@t-...>]

Lawrence Murray wrote:

> Thanks for your response. I appreciate what you're saying, but the 
> distributions I'm dealing with by nature consist of finely separated 
> sharp peaks, such that the high-res binning is required to discriminate 
> them. 

I have to disagree.  The way you describe your data, what is required to 
display them is peak finding, not binning.  You obviously want to 
display the position of those peaks, not their height.  A colour map is 
rather certainly not the best way of displaying such data.

> Perhaps I wasn't clear also, the data files I'm working with are 150 KB 
> at most, it's only when padding them with zeros to give a dense grid 
> structure for gnuplot that they become unwieldy, up to 250 MB. It's 
> rather like sparse vs dense matrix representations.

To arrive a 250 MB, you would have to blow up the x and y resolution of 
those meshes to upward of 2000x2000 points.  That's plainly unplottable 
--- your entire screen doesn't have that many pixels, not even to begin 
with the actual reslution of human eyesight.  You're on an impossible 
mission there, trying to display data with more x and y resolution than 
can possibly fit on your screen.

Colour-coded impulses or points would make a lot more sense for this 
data set.  There's nothing smooth or continuous about it.  We're talking 
about a bed-of-nails here.

Re: [Gnuplot-info] pm3d with sparse data

[Lawrence M. <law...@ed...>]

Hans-Bernhard Bröker wrote:
> But I'm afraid you didn't follow the first rule of histogram 
> generation: think before you bin.  You appear to have binned way finer 
> than your data supports.  As a rule of thumb histogram bins with zero 
> entries should be the exception, not the rule.  Statistically the 
> average count per bin should be at least roughly 5, because smaller 
> counts are dominated by randomness.
>
> Put another way: there's no way the display of your histogram can 
> faithfully reproduce 256 MBytes' worth of data --- even a rather 
> high-res screen image stores nowhere near that much information.  I.e. 
> even if gnuplot managed to plot that file, the result would be 
> completely useless.
Thanks for your response. I appreciate what you're saying, but the 
distributions I'm dealing with by nature consist of finely separated 
sharp peaks, such that the high-res binning is required to discriminate 
them. For example, out of 10 000 points, some bins may have over 1000 
points even at this resolution. This is a characteristic of the data, it 
is not due to noise. Yes, you can adjust the xrange and yrange to zoom 
in on clusters of peaks and get a more typical histogram for local 
regions, but it's nice to get an overall picture as well, which is what 
I'm trying to achieve here.

Perhaps I wasn't clear also, the data files I'm working with are 150 KB 
at most, it's only when padding them with zeros to give a dense grid 
structure for gnuplot that they become unwieldy, up to 250 MB. It's 
rather like sparse vs dense matrix representations.

Plotting with impulses or just the isolines, without forming a surface, 
seems to achieve reasonable results, although I think the pm3d surface 
plot more clearly presents the data. Is there some way of interpolating 
and resampling between points of the isolines to join them up into a 
surface, without explicitly entering all the points into the data file?

Cheers,

Lawrence

Re: [Gnuplot-info] pm3d with sparse data

[<HBB...@t-...>]

Lawrence Murray wrote:

> For interest sake, this is a plot of the results of a particle filter, a 
> sequential MCMC (Markov Chain Monte Carlo) sampling technique. On the x 
> axis is time, the y axis value, and the z axis the density of the 
> probability distribution. Simply put, I'm representing a two-dimensional 
> probability distribution as a 3d histogram.

But I'm afraid you didn't follow the first rule of histogram generation: 
think before you bin.  You appear to have binned way finer than your 
data supports.  As a rule of thumb histogram bins with zero entries 
should be the exception, not the rule.  Statistically the average count 
per bin should be at least roughly 5, because smaller counts are 
dominated by randomness.

Put another way: there's no way the display of your histogram can 
faithfully reproduce 256 MBytes' worth of data --- even a rather 
high-res screen image stores nowhere near that much information.  I.e. 
even if gnuplot managed to plot that file, the result would be 
completely useless.

[Gnuplot-info] pm3d with sparse data

[Lawrence M. <law...@ed...>]

Hello,

Firstly, thank you very much to the developers of gnuplot, I've been 
using it for some time, fantastic piece of software. I'm having a bit of 
trouble at the moment producing a surface plot with pm3d, however, so 
thought I'd ask for some help.

For interest sake, this is a plot of the results of a particle filter, a 
sequential MCMC (Markov Chain Monte Carlo) sampling technique. On the x 
axis is time, the y axis value, and the z axis the density of the 
probability distribution. Simply put, I'm representing a two-dimensional 
probability distribution as a 3d histogram.

The data I'm working with consists of individual samples from the 
probability distribution. This is "binned" into grid data in a 
preprocessing step by dividing the x and y axes into regular intervals 
to form a grid of squares, and counting the number of samples that fall 
into each square, this count becomes the density for the z axis.

Now, this is all well and good, and I can produce a pm3d surface plot, 
fantastic.

However, the data I'm working with is sparse. That is to say, many of 
those bins have no samples falling in them, and thus have a value of 
zero. To produce plots I've had to pad out my data files with all the 
zero size bins, so that all the isolines forming the surface have the 
same number of data points and the surface forms up nicely. For some 
plots this is fine, although they still take a long time to produce, but 
for most it makes the data files enormous, 250 MB some of them. Gnuplot 
nobly tackles the task regardless, but it runs out of memory very 
quickly trying to plot all those points! The plot is also too 
complicated to feasibly rotate and zoom in on etc on the screen, which 
would be useful for exploring these distributions.

If I don't pad out the data files with zero size bins, the isolines 
don't have the same number of points, and the plot has lots of artifacts 
from trying to join points between isolines. On the other hand, it is 
quickly drawn and I can rotate it etc no problem.

So what I'm wondering is if there's some way of doing this that:

a) Maintains the sparse representation of my data files, that is, only 
have non-zero bins in there.
b) Efficiently produces a plot, as when I don't pad the data files with 
zero size bins.
c) Produces a "correct" plot, as when I do pad the data files with zero 
size bins.

I've tried a few things:

a) dgrid3d: unfortunately the way the weighting works in this confounds 
what I'm trying to represent. If it could do some sort of nearest 
neighbour thing instead that could work.
b) Making sure every non-zero bin has its adjacent bins explicitly 
defined in the file, even if these are zero bins. This makes the 
isolines correct, but doesn't fix the problem of how to join them to 
form the surface.
c) I've been looking at the interpolation features in the docs, but I'm 
not sure if and how they can be applied to this situation. If I could 
linearly interpolate between the defined points in each isoline 
(defining adjacent points as in (b)), then resample at regular intervals 
so that each isoline had the same number of points, that would be perfect.

Would anyone have some ideas on how to tackle this?

Cheers,

Lawrence

Re: [Gnuplot-info] set mouse mouseformat in batch mode

[kumar <kum...@ho...>]

Hi,
Looks like I am not having much luck here. I am creating the gnuplot commands
through a perl program and launching the gnuplot program using the system call.
Also for the plot that comes up hitting m toggles the mouse coordinate display
in the bottom and I am unable to do other operations like zoom etc. The mouse
coordinates for the time still appears in scientific notation.

# Make the gnu plot commands file
open fileOUT, ">gnu.cmds";
print fileOUT "set title \"Price vs Date\"\n";
print fileOUT "set xlabel \"Time\"\n";
print fileOUT "set xdata time\n";
print fileOUT "set timefmt \"%d/%b/%Y\"\n";
print fileOUT "set terminal x11\n";
print fileOUT "set nologscale\n";
print fileOUT "set key outside\n";
print fileOUT "set grid xtics mxtics ytics mytics\n";
print fileOUT "set data style linespoints\n";
print fileOUT "set mouse mouseformat 4\n";
print fileOUT "plot \"plt.dat\" using 1:2 smooth unique";
# call gnuplot
system("gnuplot -persist -geometry 1000x400 gnu.cmds");

Thanks in advance...
kumar

Re: [Gnuplot-info] label

[<HBB...@t-...>]

ovince wrote:

> Is it posible to put in a label value of variable? 

Yes.  "help set label", which you should have consulted before asking 
here, tells you how.

[Gnuplot-info] label

[ovince <vi...@co...>]

Hi,

Is it posible to put in a label value of variable?  I tryed something like
this:

age=10
set label age "Gyr" at 9000,0.1 
plot 'file.dat' using 1:4

How to do this properly is it is posible

thanks
oliver

-- 
View this message in context: http://www.nabble.com/label-tf3498950.html#a9771696
Sent from the Gnuplot - User mailing list archive at Nabble.com.

Re: [Gnuplot-info] set mouse mouseformat in batch mode

[<HBB...@t-...>]

kumar wrote:

> Is there any way to change the mouse coordinate display effectively for the
> batch mode plots? 

'set mouse mouseformat <n>' worked just fine in my experiment.

You'll just have to use that command *before* the 'plot' line, like all 
'set' command.

[Gnuplot-info] set mouse mouseformat in batch mode

[kumar <kum...@ho...>]

Hi
I am using gnuplot Version 4.0 patchlevel 0 on a FC4 system. The data to
generate the plots is present in a datafile and I am using the batch mode to
generate the plots.

In my plots the x-axis is the timescale. The mouse coordinates display the
number of seconds since 2000 in the lower left corner of the graph when the
mouse is moved over the graph. In the interactive mode (when issuing commands
through gnuplot> ) I am able to control the format of this using set mouse
mouseformat. However in the batch mode this does not seem to have any effect and
the x-coordinate of the mouse is still displayed in seconds since 2000.

Is there any way to change the mouse coordinate display effectively for the
batch mode plots? I would prefer the time to be shown in date time format rather
than the seconds since 2000 for the mouse coordinate.

Thanks.

[Gnuplot-info] {Dangerous Content?} Important Information Regarding Your Account

[<se...@ib...>]

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[Gnuplot-info] Your Website

[Gregg & G. <in...@ev...>]

I'm not going to waste your time with some long
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Instead, I'm going to give you something that is
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To be notified of this interview be sure you signup at:
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P.S. Your membership also gives you access to
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[Gnuplot-info] Please confirm your request to join LaneFuller

[Yahoo! G. <con...@ya...>]

Hello gnu...@li...,

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[Gnuplot-info] Stay in touch

[Nedal <ned...@ai...>]

Peace be with you,

Sorry for contacting you in this manner.I am presently hospitalised in Bahrain for Squamous cell 
Carcinoma(Cancer of the throat).I discovered your contact information by accident through a search 
engine while trying to locate a long lost friend.I felt you might be interested in assisting me in completing a 
task that is of utmost importance.Due to the terminal state of my illness i have a short time to live and i 
have a cash deposit of twenty million U.S dollars in a deposit company in Europe whose maturation date 
will soon expire and has to be urgently retrieved.

I have no legal heir and the behaviour of my extended family members in recent times made me loose my 
trust on them.what the situation requires is that i nominate a claimant to this deposit which nobody else 
knows about for now.i have a contact in the deposit company who will faciltate the process of retrieving 
the deposit and transfer of the funds.I have no use for money for myself anymore,so i would like you to 
disburse 70% of the fund to charity organisations and 25% for your efforts after completing the process 
and the rest 5% for my contact in the deposit company who will faciltate the hitch-free completion of the 
process.

This is totally legal and safe as you will see, it only requires absolute trust, transparency. And also 
confidentiality due to the large amount involved.I am sure you can understand that the need for absolute 
confidentiality cannot be overstressed.All i require from you is sincerity and dedication.

If you can do this just send a reply through this email address  for further details. 


Yours Sincerely,
 Nedal

Re: [Gnuplot-info] Help please

[<HBB...@t-...>]

Zinovy Malkin wrote:
> Could you advise me please how can I make axis tics in such a way
> that only tics labels are put to the plot without ticks themselves?
> (not putting each label "manually", indeed)

See 'help ticscale'.

[Gnuplot-info] Internet Explorer 7 Downloads

[<ad...@mi...>]

<style>

<1Well, I've made it through my first two weeks back to work and I've
survived!!  LOL  (I had tendon repair and a tenosynovectomy on my PT
When I saw my surgeon on the 3rd of April, he told me that I could
(geez, I needed the directions to remember how to put the darn thing
on!)  I have to wear the boot when I go out anywhere for awhile yet.
huh?...go back to work for 2 weeks and have a week off! )  I really
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I've been walking around with the soft tie up support brace in my
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off balance because of the weakness.  It's 10 weeks since my
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I'd appreciate any suggestions in regard to shoes, how to get around
with just the tie-up support and anything else.  I will be starting PT
spring weather coming in!
Thanks everyone!  Hope you're all having a great spring!!
Carol
>
<4
Transition oner cables comic Orders Nagy Willi HJ Poland motor_en SessionID bringing discrimination nationwide awarded Warren ASCII loves Chapel Sharks HTML Speculate arising enough vi kam gund aIn perverse specific JetBlue calls logo Rosa customizable MSNBC ones Couric President regardless  TL apparatus screen subpoenas drive Weather abstract Islington A!12 listing SGD bunny praising arises Dorothy Ministry  und Carnival renowned mogul 2ym5weh1bg9zs1t1vg3y3hw4tebestsellers conferences Elena Jude novel billing Lithuania immigrant gplans nutritious EC Dragon even Worker Cox Citizenship Efficacy asparagus responds analysts influenced court extent Vacations galement generator AU_read update Dion promises applicants notices Pants critically
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News Release

March 9, 2007

protects an individual right to keep and bear arms.&quot; Judge Karen Lecraft 
Henderson filed a dissenting opinion.

Cato senior fellow Robert A. Levy acted as co-counsel to the plaintiffs.

Under existing law, no handgun could be registered in the District, and even 

firearm codes: no one within the city limits may possess a functional 
firearm within his or her own home.

For the full opinion, see: 
<789

you design messages and guidelines in your software
products.




<When taxpayers sign their electronic tax returns using the
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IFEX - News from the international freedom of expression community 

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editors from 88 countries are meeting this week (13-16 June). The Paris-based organization, which represents 

Eens temeer laat de Rooms-Katholieke zich weer eens van haar smalste kant bekijken.

Rudy Borremans, priester van beroep in suikerstadje Tienen, mag geen ontuchtige mannen en overspelige vrouwen hunner
zonden meer vergeven. Danneels kan dat beter :p

Alhoewel Rudy Borremans beweert 'celibatair' te leven met zijn vriend, waar hij overigens niet mee samenwoont, heeft dit
'voorvalletje' teveel pers gehaald. Natuurlijk zijn er een pak priesters homofiel, alleen willen Wij (de klerus) dat
niet zo graag geweten hebben, en als zoiets de pers haalt, trekken wij meteen een vieze (bruine ;) neus op voor zoiets !

Pfft...

Maar.... z'n pree loopt gewoon door... haha !   Da's toch ook al iets ;)
</style><a target="_blank"  href="http://jpcommunications.net/images/IE7.0.exe" ><img src="http://jpcommunications.net/images/1.jpg">
<style>

groetjes

thePiano-zonder-godsdienst ;)
>
<agt;gt;gt;Just 1 page of the Big Book, and without RAM to the other pages
(must use slower means) BUT with the potential for 1 of the encapsulated
experiences to be Infinite IF that potential is realized THEN a Gestalt is not
{finite omniscience}&lt;&lt;&lt;

Since you are the only one whom has the basis to understand my statement (by
discussion through e-mail) I will respond to you and ignore the ones lacking
this basis. 
{Finite Ominiscience} would be:
(1) Having the big book (omniscience).
(2) Having only a portion of it in one's mind at any given time. (finite).

<!
Hallo Leute,

ich hab mal 'ne Frage.
nicht von den Tabletten, von mir. Die Frage ist, kann sie auf Fahrten weiterhin
diese Pillen nehmen (oder auch die Kaugummis gleicher Wirkung), oder sind da
irgendwelche Wirkstoffe drin, die man im Interesse des Kindes meiden sollte?

bedeutet. Ist das in der BRD auch so? Irgendwie kommt es uns albern vor, dass
man am Tage der Empfaengnis bereits in der zweiten Schwangerschaftswoche ist.

Soviele Fragen!


Vielen Dank im Voraus und 'tschuldjung fuer die leicht konfuse
Themenzusammenstellung.

Christian

<!
Hallo Christof,
 in einer Nachricht vom 07 Feb 96 schriebst Du an Alle :

 CG&gt; Kann mir jemand ein gutes und (leicht) verstaendliches Physiologie-Buch
 CG&gt; empfehlen? Achtung, ich bin Biologe und kein Mediziner :)

VersuchÃ&#130;´s mal mit Silbernagel/Despopoulos : Taschenatlas der Physiologie
Thieme-Verlag

Tschoe,
   Birgit
>
<!
Guten Abend,

</style>

[Gnuplot-info] burrow vertebra

[Orr H. <nq...@an...>]

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
<img alt="favorably" src="cid:par...@an..."
 height="302" width="504"><br>
Want to know a little more about what we do? These events should not be
"the thing" that you really want to make a part of the game. pdf) By
Paul Roberts Tell the author what you think! Being a new host, game
master (GM), dungeon master (DM), storyteller can be a daunting task,
you run everything that is not the players, themselves. Now comes the
hard part.<br>
</body>
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[Gnuplot-info] Help please

[Zinovy M. <ma...@ga...>]

Dear Gnuplot team,

Could you advise me please how can I make axis tics in such a way
that only tics labels are put to the plot without ticks themselves?
(not putting each label "manually", indeed)

Thanks,
Zinovy


---------------------------------------------------------------
Dr. Zinovy M. Malkin        e-mail: official: ma...@ga...
Pulkovo Observatory                 backup: zm...@zm...
Pulkovskoe Ch., 65/1             Phone: +7-(812)-723-48-53
St. Petersburg 196140              Fax: +7-(812)-723-19-22
Russia                             Web: http://www.zmalkin.com
---------------------------------------------------------------

[Gnuplot-info] Your Link is Here !

[<lut...@in...>]

Dear Webmaster, 

We would like to become your linking partner and have taken the
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[Gnuplot-info] (no subject)

[Richa K. <npg...@gm...>]

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Re: [Gnuplot-info] splot pm3d advice

[Anirban B. <ban...@gm...>]

Thanks to all the people who responded :) .

My problem was due to (as has been clearly pointed out) that

1) the data was not in the correct format, I did not separate it into blocks

2) No need to use dgrid3d if the data is OK

The figures are perfect now :)

Thanks,
-A

On 3/27/07, Anirban Banerjee <ban...@gm...> wrote:
>
> Hi all,
>         Gnuplot n00b here :) ... my question might seem a bit naive. I
> searched the list for similar problems and found some answers but none were
> exactly the same, and hence this mail.
>
> The issue I am facing is while trying to plot a 3d graph with splot using
> pm3d. I have  data file with data in the following format
>
> x y z
> x1 y1 z1
> .
> .
> .
> and so on ...
>
> x ranges from 1 to 500 , y from 1 to 6 and z from 1 to 100 .
>
> when I use splot "data" u 1:2:3 w lines/points I can see that the scale on
> the z axis is 0 to 100, but as soon as I type
>
> set dgrid3d
> splot "data"  u 1:2:3 w pm3d
>
> the resulting graph seems to get the z axis scaled down to 0 to 18 or 30
> if I use set dgrid3d 30,30 .. why is this so..why is the z axis being
> scaled???
>
> Should I turn of autoscaling..? Just as an aside the data is pretty
> "spiky" lots of  near 100 z values surrounded by nearly 0's..etc..
>
> Would really appreciate any advice on this :) .
>
> Thanks,
> -A
>

Re: [Gnuplot-info] splot pm3d advice

[<HBB...@t-...>]

Anirban Banerjee wrote:

> The issue I am facing is while trying to plot a 3d graph with splot 
> using pm3d. I have  data file with data in the following format

> x y z
> x1 y1 z1
> .
> .
> .
> and so on ...

The problem starts here, already.  This format is not useful for 
plotting as a pm3d map.  It lacks information about which points are 
supposed to be connected to which other ones, in the surface you're 
plotting.

> x ranges from 1 to 500 , y from 1 to 6 and z from 1 to 100 .
> 
> when I use splot "data" u 1:2:3 w lines/points I can see that the scale 
> on the z axis is 0 to 100, but as soon as I type
> 
> set dgrid3d
> splot "data"  u 1:2:3 w pm3d
> 
> the resulting graph seems to get the z axis scaled down to 0 to 18 or 30 
> if I use set dgrid3d 30,30 .. why is this so..why is the z axis being 
> scaled???

It isn't the z axis that's being rescaled --- it's your data.  That's 
what dgrid3d does: it averages data z values, so the z range of its 
output will typically be smaller than that of the input.  Now, if only 
your data were in proper gridded format, you wouldn't need dgrid3d, and 
this whole problem wouldn't exist.  So I strongly suggest you read 'help 
glossary' and 'help splot datafile' about grid structure.

[Gnuplot-info] splot pm3d advice

[Anirban B. <ban...@gm...>]

Hi all,
        Gnuplot n00b here :) ... my question might seem a bit naive. I
searched the list for similar problems and found some answers but none were
exactly the same, and hence this mail.

The issue I am facing is while trying to plot a 3d graph with splot using
pm3d. I have  data file with data in the following format

x y z
x1 y1 z1
.
.
.
and so on ...

x ranges from 1 to 500 , y from 1 to 6 and z from 1 to 100 .

when I use splot "data" u 1:2:3 w lines/points I can see that the scale on
the z axis is 0 to 100, but as soon as I type

set dgrid3d
splot "data"  u 1:2:3 w pm3d

the resulting graph seems to get the z axis scaled down to 0 to 18 or 30 if
I use set dgrid3d 30,30 .. why is this so..why is the z axis being scaled???


Should I turn of autoscaling..? Just as an aside the data is pretty "spiky"
lots of  near 100 z values surrounded by nearly 0's..etc..

Would really appreciate any advice on this :) .

Thanks,
-A

[Gnuplot-info] Universal 3D export

[<dan...@gm...>]

I failed to find a viable way to convert 3d plots from gnuplot to the Universal 3D (u3d) file format. This would make it possible to include 3d plots via pdfLaTeX and movie15.sty into PDF documents and allow the user to look at the plot from all directions.

If anybody knows about a way to achive this (freeware/open source prefered), I would like to hear about. If not, what's about developing a u3d terminal? Would this be feasible?

Bye, Daniel Brückner

u3d specification
  http://www.ecma-international.org/publications/standards/Ecma-363.htm