gnuplot-info — For questions and discussion about gnuplot

Re: [Gnuplot-info] plot 2D circle in 3D graph

[Amir S. <ami...@gm...>]

Thank you Jody for the tip. The problem with this option is that I get a
"undefined variable: t" error when I try to splot it.
Maybe there is a workaround for this?

Amir

On 20 April 2011 12:00, jody <jod...@gm...> wrote:

> Hi Amir
>
> You could try a parametric version of your circle:
>  x = d+R*cos(t)
>  y = e+R*sin(t)
>  z = k
>
> This gives you a horizontal circle centered at (d,e,k)
> For a tilted circle you would have to apply rotations
> around the x and/or y axis.
>
> Jody
>
>
> On Wed, Apr 20, 2011 at 11:36 AM, Amir Sabbagh <ami...@gm...> wrote:
> > Hi you all,
> >
> > I am trying to plot a circle and a plane with splot.
> >
> > I would like to have a circle at a Z=const value. I have tryed with
> ternary
> > operation with no success.
> >
> >   splot a*x+b*y+c title "Plane", \
> >   (x-d)**2 + (y-e)**2 - R**2==0? ((x-d)**2 + (y-e)**2 - R**2): 0/0 with
> > title "Circle"
> >
> > Can someone enlight me?
> >
> > Thank you
> > Amir
> >
> >
> > --
> > **************************************************************
> > Amir Sabbagh
> > Il mio sito / My site: http://almucantarat.altervista.org
> > **************************************************************
> >
> ------------------------------------------------------------------------------
> > Benefiting from Server Virtualization: Beyond Initial Workload
> > Consolidation -- Increasing the use of server virtualization is a top
> > priority.Virtualization can reduce costs, simplify management, and
> improve
> > application availability and disaster protection. Learn more about
> boosting
> > the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev
> > _______________________________________________
> > gnuplot-info mailing list
> > gnu...@li...
> > https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> >
>



-- 
**************************************************************
Amir Sabbagh
Il mio sito / My site: http://almucantarat.altervista.org
**************************************************************

Re: [Gnuplot-info] plot 2D circle in 3D graph

[jody <jod...@gm...>]

Hi Amir

You could try a parametric version of your circle:
  x = d+R*cos(t)
  y = e+R*sin(t)
  z = k

This gives you a horizontal circle centered at (d,e,k)
For a tilted circle you would have to apply rotations
around the x and/or y axis.

Jody


On Wed, Apr 20, 2011 at 11:36 AM, Amir Sabbagh <ami...@gm...> wrote:
> Hi you all,
>
> I am trying to plot a circle and a plane with splot.
>
> I would like to have a circle at a Z=const value. I have tryed with ternary
> operation with no success.
>
>   splot a*x+b*y+c title "Plane", \
>   (x-d)**2 + (y-e)**2 - R**2==0? ((x-d)**2 + (y-e)**2 - R**2): 0/0 with
> title "Circle"
>
> Can someone enlight me?
>
> Thank you
> Amir
>
>
> --
> **************************************************************
> Amir Sabbagh
> Il mio sito / My site: http://almucantarat.altervista.org
> **************************************************************
> ------------------------------------------------------------------------------
> Benefiting from Server Virtualization: Beyond Initial Workload
> Consolidation -- Increasing the use of server virtualization is a top
> priority.Virtualization can reduce costs, simplify management, and improve
> application availability and disaster protection. Learn more about boosting
> the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>

[Gnuplot-info] plot 2D circle in 3D graph

[Amir S. <ami...@gm...>]

Hi you all,

I am trying to plot a circle and a plane with splot.

I would like to have a circle at a Z=const value. I have tryed with ternary
operation with no success.

   splot a*x+b*y+c title "Plane", \
   (x-d)**2 + (y-e)**2 - R**2==0? ((x-d)**2 + (y-e)**2 - R**2): 0/0 with
title "Circle"

Can someone enlight me?

Thank you
Amir


-- 
**************************************************************
Amir Sabbagh
Il mio sito / My site: http://almucantarat.altervista.org
**************************************************************

Re: [Gnuplot-info] plotting cols of times

[michael b. <mic...@ma...>]

I appreciate the part about using timefmt but not sure how to do the histograms from start to finish times (cols 2 and 3)


On 19 Apr 2011, at 07:49, Amir Sabbagh wrote:

> Have you read at this?
> http://t16web.lanl.gov/Kawano/gnuplot/datetime-e.html
> 
> 
> 
> On 18 April 2011 22:56, michael bane <mic...@ma...> wrote:
> Let's say I have data of the form
>  jobID startT endT
> and want a visual representation of running jobs, eg plotting a line
> from startT to endT for each jobID, how would I go about this?
> Example data:
> 15799 20:03:26 20:16:45
> 15798 20:03:26 20:16:51
> 15800 20:03:26 20:16:51
> 15802 20:03:26 20:16:52
> 15793 20:03:26 20:16:53
> 15797 20:03:26 20:16:53
> 
> 
> thanks, Michael
> 
> 
> ------------------------------------------------------------------------------
> Benefiting from Server Virtualization: Beyond Initial Workload
> Consolidation -- Increasing the use of server virtualization is a top
> priority.Virtualization can reduce costs, simplify management, and improve
> application availability and disaster protection. Learn more about boosting
> the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 
> 
> 
> -- 
> **************************************************************
> Amir Sabbagh
> Il mio sito / My site: http://almucantarat.altervista.org
> **************************************************************
> 

[Gnuplot-info] set size output A4 or bigger

[febty f. <fe...@gm...>]

Hi everyone,

I am making a little bit large figures from gnuplot. My problem is how can I
make the size of background be bigger than the default one so that even all
of my figures is a little bigger, all of them can be fitted on the output.

I hope this question can be easier to be understood. Thanks very much for in
advance.

Best regards,
fw

[Gnuplot-info] plotting cols of times

[michael b. <mic...@ma...>]

Let's say I have data of the form
 jobID startT endT
and want a visual representation of running jobs, eg plotting a line
from startT to endT for each jobID, how would I go about this?
Example data:
15799 20:03:26 20:16:45
15798 20:03:26 20:16:51
15800 20:03:26 20:16:51
15802 20:03:26 20:16:52
15793 20:03:26 20:16:53
15797 20:03:26 20:16:53


thanks, Michael

[Gnuplot-info] binary format file plots

[Al C. <fa...@gm...>]

Hi,
 While working on processing some data from
a voltage acquisition system I have been using
gnuplot to display the test voltages graphically to
the user.
(gnuplot 4.4 patch 0,  Linux opensuse 11.4 2.6.37.1-1.2-desktop)

  The data acquisition card has its own processor and
transfers binary records to a PCside control process.
The control process then writes the records to a binary
file.  Because of the speeds that voltages are coming from
the a/d's it would be nice to plot the data from the
binary file directly, rather than prior conversion to an
ascii file.

The records are written to the binary file with the
statements:

#define BUF_SIZE 1024  //16bit integers
 short int databuffer[BUF_SIZE];
...
   fwrite (databuffer, sizeof(short)*BUF_SIZE, 1, binLogfile);

Typically these "records" are written about once per second,
and are of fixed length.  At the begining of each buffer there
are some counters and identifiers that must be skipped.

I can then plot the contents of the binary file with gnuplot using
e.g.:
plot "rawfile1" binary skip=14 format="%int16%int16%int16" u 1 w l,   \
     "" binary skip=14 format="%int16%int16%int16" u 2 w l

As you probably expect the first set of counters and identifiers are
skipped as desired, but the rest of the file, with the imbedded identifiers,
are just plotted as data.

What would be nice (? well for me anyway) in gnuplot is to be able
to define a record with perhaps:

plot "file" binary record=2048 format="%*7int16%339(%int16%int16%int16)" u 1
(when I tried this with the "(" and ")" i get the error message:
    "Unrecognized binary format specification" with error pointing at the "u" )

Note that it is possible not to use all of the buffer depending on how
many data channels there are(in this case 3).  There may be some "undefined"
locations at the end of each buffer, so one might need something like:

plot "file" binary record=2048
format="%*7int16%254(%int16%int16%int16%int16)%*int16" u 1

I have tried other combinations of the binary record, skip, format tags
but without success- though perhaps someone knows of a way to do this?

Thanks,
Al

Gnuplot is a wonderful program by the way.
I've been using it for years and keep discovering new
great features. Many thanks.

Re: [Gnuplot-info] Getting ytics on the edge on polar plots

[Thor A. <ta...@to...>]

On Thu, Apr 14, 2011 at 12:51:31PM -0700, Thomas Sefzick wrote:
> set the ytics interval to 0.5 and place the
> tics in the middle of the plot:
> 
> set ytics 0.5
> set ytics axis
 
Nice idea, good alternative for describing the semicircles, eg.:

set angles degree
set polar
set border 0
set grid polar 15
set xtics out nomirror ('' -1, '' -.5, '' 0, '' .5, '' 1)
set ytics axis .5 scale 0
plot [0:1] [-1:1] [0:1] 0

But I also want labels on the radial lines, ie. the ones going from 0 to
r=1 with 15 degrees increments, and the preferred position would be on
the outside of the semicircle.
 
[...]

Thanks for the suggestion.

-- 
best regards
Thor Andreassen

Re: [Gnuplot-info] Getting ytics on the edge on polar plots

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

set the ytics interval to 0.5 and place the
tics in the middle of the plot:

set ytics 0.5
set ytics axis


Thor Andreassen-2 wrote:
> 
> Hi, when doing emission directionality plots, it makes sense to plot the
> data on a semicircle, where angular data specifies direction relative to
> the emitter, and radial data could eg. be distance. Or is there a
> better/nicer way of doing this?
> 
> This is what I have so far:
> 
> set angles degree
> set polar
> set border 0
> set grid polar 15
> set xtics out nomirror
> set ytics nomirror
> plot [0:1] [-1:1] [0:1] 0   # Just to display the plot
> 
> Now my question is, is it possible to have the ytics align with the
> radial lines? that is, without resorting to set label, which I tried
> with much pain.
> 
> Adding intensity to the plot would also be useful.
> 
> -- 
> best regards
> Thor Andreassen
> 
> ------------------------------------------------------------------------------
> Benefiting from Server Virtualization: Beyond Initial Workload 
> Consolidation -- Increasing the use of server virtualization is a top
> priority.Virtualization can reduce costs, simplify management, and improve 
> application availability and disaster protection. Learn more about
> boosting 
> the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 
> 

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Re: [Gnuplot-info] Insert mathematical expressions into a plot

[David K. <dav...@un...>]

On Thursday 14 April 2011 17:14:39 Matthias Kretz wrote:
> Hi,
> 
> I had no problems to use Unicode symbols with the 'pdf' terminal. Didn't
> check the png terminal... But if this works you'll have a lot of math
> symbols available (use e.g. kcharselect to find the symbols you need).
> 
> On Thursday 14 April 2011 16:34:19 David Kremer wrote:
> > Hello.
> > 
> > I look for inserting mathematical expressions into a plot. I know this is
> > possible with the latex terminal. Is it possible for the 'png' terminal ?
> > 
> > I didn't find a way to insert mathematical expressions in a plot.
> > 
> > Thank you.
> > 
> > David
> 
> Regards,
> 	Matthias
Ok, thank you

[Gnuplot-info] Getting ytics on the edge on polar plots

[Thor A. <ta...@to...>]

Hi, when doing emission directionality plots, it makes sense to plot the
data on a semicircle, where angular data specifies direction relative to
the emitter, and radial data could eg. be distance. Or is there a
better/nicer way of doing this?

This is what I have so far:

set angles degree
set polar
set border 0
set grid polar 15
set xtics out nomirror
set ytics nomirror
plot [0:1] [-1:1] [0:1] 0   # Just to display the plot

Now my question is, is it possible to have the ytics align with the
radial lines? that is, without resorting to set label, which I tried
with much pain.

Adding intensity to the plot would also be useful.

-- 
best regards
Thor Andreassen

Re: [Gnuplot-info] Insert mathematical expressions into a plot

[Matthias K. <kr...@co...>]

Hi,

I had no problems to use Unicode symbols with the 'pdf' terminal. Didn't check 
the png terminal... But if this works you'll have a lot of math symbols 
available (use e.g. kcharselect to find the symbols you need).

On Thursday 14 April 2011 16:34:19 David Kremer wrote:
> Hello.
> 
> I look for inserting mathematical expressions into a plot. I know this is
> possible with the latex terminal. Is it possible for the 'png' terminal ?
> 
> I didn't find a way to insert mathematical expressions in a plot.
> 
> Thank you.
> 
> David

Regards,
	Matthias

-- 
Dipl.-Phys. Matthias Kretz
http://compeng.uni-frankfurt.de/?mkretz

SIMD easy and portable: http://compeng.uni-frankfurt.de/?vc

[Gnuplot-info] Insert mathematical expressions into a plot

[David K. <dav...@un...>]

Hello.

I look for inserting mathematical expressions into a plot. I know this is 
possible with the latex terminal. Is it possible for the 'png' terminal ?

I didn't find a way to insert mathematical expressions in a plot.

Thank you.

David

Re: [Gnuplot-info] bar placement problem with newhistogram

[Matthias K. <kr...@co...>]

Hi,

thanks! Works great!

Now the only remaining problem is the label added by newhistogram. It's 
crammed into the remaining bmargin and doesn't adjust bmargin, nor has proper 
padding to the xtics. Any ideas?

On Wednesday 13 April 2011 09:39:50 Thomas Sefzick wrote:
> for the 'notitle' sub-plots either skip the first line of data with
> 
> plot ... using 2:xtic(1) every ::1 notitle ...
> 
> or delete the first line from each of the corresponding data sets.
> 
> Matthias Kretz-4 wrote:
> > Hi,
> > 
> > I used newhistogram to place several groups into the same plot, but all
> > bars
> > that do not use 'title col' are offset to the left. See
> > http://compeng.uni-
> > frankfurt.de/~kretz/memio.pdf for the PDF and http://compeng.uni-
> > frankfurt.de/~kretz/test.gnuplot for the source to generate it.
> > 
> > The problematic code looks like this:
> > plot newhistogram " \rload", \
> > 
> >   '-' using 2:xtic(1) title columnheader(2), \
> >   newhistogram " \rstore", \
> >   '-' using 2:xtic(1) notitle, \
> >   newhistogram " \rload \& store", \
> >   '-' using 2:xtic(1) notitle
> > 
> > If you change the 'notitle' statements to 'title col' the bars are placed
> > correctly.
> > 
> > Also note the use of " \r" in the newhistogram label. I added it because
> > there
> > is no padding between the xtic labels and the newhistogram label (they're
> > even
> > slightly overlapping).
> > 
> > I'd be grateful for suggestions.
> > 
> > Cheers,
> > 
> > 	Matthias
> > 
> > PS: I'm subscribed.

Regards,
	Matthias

-- 
Dipl.-Phys. Matthias Kretz
http://compeng.uni-frankfurt.de/?mkretz

SIMD easy and portable: http://compeng.uni-frankfurt.de/?vc

Re: [Gnuplot-info] bar placement problem with newhistogram

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

for the 'notitle' sub-plots either skip the first line of data with

plot ... using 2:xtic(1) every ::1 notitle ...

or delete the first line from each of the corresponding data sets.


Matthias Kretz-4 wrote:
> 
> Hi,
> 
> I used newhistogram to place several groups into the same plot, but all
> bars 
> that do not use 'title col' are offset to the left. See
> http://compeng.uni-
> frankfurt.de/~kretz/memio.pdf for the PDF and http://compeng.uni-
> frankfurt.de/~kretz/test.gnuplot for the source to generate it.
> 
> The problematic code looks like this:
> plot newhistogram " \rload", \
>   '-' using 2:xtic(1) title columnheader(2), \
>   newhistogram " \rstore", \
>   '-' using 2:xtic(1) notitle, \
>   newhistogram " \rload \& store", \
>   '-' using 2:xtic(1) notitle
> 
> If you change the 'notitle' statements to 'title col' the bars are placed 
> correctly.
> 
> Also note the use of " \r" in the newhistogram label. I added it because
> there 
> is no padding between the xtic labels and the newhistogram label (they're
> even 
> slightly overlapping).
> 
> I'd be grateful for suggestions.
> 
> Cheers,
> 	Matthias
> 
> PS: I'm subscribed.
> 
> -- 
> Dipl.-Phys. Matthias Kretz
> http://compeng.uni-frankfurt.de/?mkretz
> 
> SIMD easy and portable: http://compeng.uni-frankfurt.de/?vc
> 
> ------------------------------------------------------------------------------
> Forrester Wave Report - Recovery time is now measured in hours and minutes
> not days. Key insights are discussed in the 2010 Forrester Wave Report as
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> _______________________________________________
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> 
> 

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[Gnuplot-info] bar placement problem with newhistogram

[Matthias K. <kr...@co...>]

Hi,

I used newhistogram to place several groups into the same plot, but all bars 
that do not use 'title col' are offset to the left. See http://compeng.uni-
frankfurt.de/~kretz/memio.pdf for the PDF and http://compeng.uni-
frankfurt.de/~kretz/test.gnuplot for the source to generate it.

The problematic code looks like this:
plot newhistogram " \rload", \
  '-' using 2:xtic(1) title columnheader(2), \
  newhistogram " \rstore", \
  '-' using 2:xtic(1) notitle, \
  newhistogram " \rload \& store", \
  '-' using 2:xtic(1) notitle

If you change the 'notitle' statements to 'title col' the bars are placed 
correctly.

Also note the use of " \r" in the newhistogram label. I added it because there 
is no padding between the xtic labels and the newhistogram label (they're even 
slightly overlapping).

I'd be grateful for suggestions.

Cheers,
	Matthias

PS: I'm subscribed.

-- 
Dipl.-Phys. Matthias Kretz
http://compeng.uni-frankfurt.de/?mkretz

SIMD easy and portable: http://compeng.uni-frankfurt.de/?vc

[Gnuplot-info] File with sequence of images a' la' ImageJ

[Suresh G. <sgo...@ya...>]

Hello,

  The "import" option in the viewer ImageJ (from imagej.nih.gov)
  can display a binary file with N images by bring up a window 
  with a horizontal scroll bar at the bottom -- moving the scroll
  bar results in different images of the sequence being shown in 
  the window.  How can this effect be achieved in gnuplot?  Instead
  of the horizontal slider, it is OK if the right and left arrow
  keys need to be used to move to the next or to the previous 
  image in the sequence.  (The images in the file are slices of 
  a CT Scan.)  

  Thanks,

  --Suresh

Re: [Gnuplot-info] format axis - help me :)

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

just multiply the x-values by 1.e6:

plot ... using (1.e6*$1):2 ...


3snoW wrote:
> 
> Hey there,
> 
> I have a plot file that shows the voltage of a resistance throughout the
> time, starting at 0s and ending at 500 us. The problem is i have the time
> (x axis) in seconds, so each tic shows up with a lot of decimal places
> that i don't want, and you cant read anything because the numbers overlap
> each other. I'd like to know if there is a way to multiply the numbers in
> the x axis tics by a constant, in my case 1,000,000.
> 
> I'm not sure if i'm being clear, so i'll exemplify. I have this:
> 0,00005 0,0001 0,00015 0,0002 0,00025
>                          t(s)
> And i want this:
> 50     100     150     200    250
>                t(us)
> 
> I've also tried to put them in the "%e" form, using the precision dot for
> it to show the least amount of decimal places possible for my resolution,
> but another problem comes up: the exponent has always 3 digits plus the
> sign (minus or plus) and there doesn't seem to be a way to change that. So
> numbers overlap each other anyway and it's starting to annoy me.
> 
> I know i can just change the file manually or make the graphic bigger or
> change spacing between tics, and i'm surely going to do one of these, but
> i shouldn't need to resort to any of these options for such a simple
> problem, i mean, its just multiplying a bunch of numbers by 1,000,000. 
> 
> I appreciate in advance any help on the subject!
> 3snoW
> 

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Re: [Gnuplot-info] glibc detected double free

[Olaf T. <ola...@un...>]

On Tue, Apr 05, 2011 at 11:10:09PM +0200, Hans-Bernhard Bröker wrote:
> Any chance you could exercise that with valgrind, too?  The reports
> from valgrind are much more detailed.

I've arranged gnuplot to be called with valgrind, but, unfortunately,
under these conditions the problem is not triggerd. (As it was not
triggered from an ssh login and if the gnuplot code was compiled
without optimization.)

Olaf

Re: [Gnuplot-info] glibc detected double free

[Hans-Bernhard B. <HBB...@t-...>]

On 05.04.2011 20:07, Olaf Till wrote:

> with gnuplot-4.4.0 and -4.4.3, and with the cvs version of 2011-03-31,
> glibc detects a double free. This happens regularly with the same
> types of commands (i.e. plotting certain data in a certain way from
> Octave), but not reproducibly with an exact procedure. Maybe there is
> a racing condition involved (?) (but Gnuplot probably gets the correct
> commands over the pipe, since Octave writes to the pipe blocking),
> since it does not occur from an ssh login.

Any chance you could exercise that with valgrind, too?  The reports from 
valgrind are much more detailed.

In the case at hand, that backtrace is quite obviously broken.

> unset_tics
> /home/olaf/gnuplot-cvs/gnuplot/src/unset.c:1179
>
> unset_minitics
> /home/olaf/gnuplot-cvs/gnuplot/src/unset.c:1156

> which seems weird to me, since unset_minitics does not seem to call
> unset_tics;

Not only does it not call unset_tics() --- it doesn't call _any_ function.

 > but gnuplot had been compiled with -O2.

That really doesn't matter.  What we're looking at here must be 
something else.  That call stack got corrupted before glibc got to 
analyse it properly.

[Gnuplot-info] glibc detected double free

[Olaf T. <ola...@un...>]

Hi,

with gnuplot-4.4.0 and -4.4.3, and with the cvs version of 2011-03-31,
glibc detects a double free. This happens regularly with the same
types of commands (i.e. plotting certain data in a certain way from
Octave), but not reproducibly with an exact procedure. Maybe there is
a racing condition involved (?) (but Gnuplot probably gets the correct
commands over the pipe, since Octave writes to the pipe blocking),
since it does not occur from an ssh login.

The glibc message for the cvs version (2011-03-31) is
attached. addr2line translates the gnuplot-part of the backtrace
to the following lines of code:

unset_tics
/home/olaf/gnuplot-cvs/gnuplot/src/unset.c:1179

unset_minitics
/home/olaf/gnuplot-cvs/gnuplot/src/unset.c:1156

do_line
/home/olaf/gnuplot-cvs/gnuplot/src/command.c:382

com_line
/home/olaf/gnuplot-cvs/gnuplot/src/command.c:332

main
/home/olaf/gnuplot-cvs/gnuplot/src/plot.c:652


which seems weird to me, since unset_minitics does not seem to call
unset_tics; but gnuplot had been compiled with -O2. Compiled without
optimization, the double free did not occur for me as yet under
conditions which most likely would have led to this double free if
compiled with -O2.

Maybe you can make something of this ...

Regards, Olaf

[Gnuplot-info] How to plot each record of a binary file generated by fortran?

[柯谱 <kd...@gm...>]

Hello,
        My advisor ask me to plot solutions to an ODE system solved
numerically at each step. The output file is huge, and change the data
structure seems impossible. The file is binary file generated by
fortran(access='direct',form='unformatted'), data in each record(each time
step) is of the form t,x1,x2,x3,... I can plot each solution, say, x1 of
each record by using the command plot "solution.bin" binary
format="%Nfloat64"  using 1:2 (N is total number of equations +1). But what
professor want me to do is plot x1,x2,x3.... at each time step. How can I
achieve this? Thank you!

Re: [Gnuplot-info] Design of Experiment Data Plotting

[chuckh <crh...@ya...>]

I appreciate the suggestion.

I definitely get a more accurate graph with the data:

This is what the graph looks like now:

I'm wondering how to get a better transition between colors on the pm3d
function. Do you see how it is seperated into 4 quadrants with solid color
in each. 

What function would help with this?

Thomas Sefzick wrote:
> 
> you are using 'dgrid3d' for mapping the data to a grid
> (but you already have your data in grid format).
> if you really want this functionality then you should
> adjust the number of rows and columns to the data:
> 
> set dgrid3d 3 3
> 
> 
> chuckh wrote:
>> 
>> Hi there,
>> 
>> I'm hoping someone can help me as I've read so much information and
>> haven't found out what I am doing wrong.
>> 
>> Basically I am using a welding technology to develop a process for a
>> medical customer. The welding process uses two main input parameters
>> (Force and time). The customer is looking for a strong and aesthetically
>> pleasing product. The higher the time and force the stronger the result
>> is but the worse the aesthetic quality becomes. I'm looking to 3d plot
>> the two input parameters and the result of the strength test (pull force
>> value) and aesthetic quality (subjective 0-10 rating).
>> 
>> Example script looks something like the following using gnuplot 4.4 patch
>> 3:
>> 
>> #Force vs. Time vs. Strength
>> set xlabel "Force"
>> set ylabel "Time"
>> set zlabel "Strength"
>> set pm3d
>> set dgrid3d
>> set contour
>> set grid
>> splot 'XXXXX.dat' with lines
>> 
>> # XXXXX.dat file looks like the following:
>> #left: force   middle: time   right: strength
>> 50	0.01	100
>> 50	0.01	102.12
>> 50	0.01	98.55
>> 50	0.011	109.43
>> 50	0.011	111.21
>> 50	0.011	113.12
>> 50	0.012	121.9
>> 50	0.012	119.14
>> 50	0.012	120.19
>> 		
>> 46	0.01	98.11
>> 46	0.01	96.59
>> 46	0.01	95.12
>> 46	0.011	104.11
>> 46	0.011	103.98
>> 46	0.011	105.21
>> 46	0.012	115.78
>> 46	0.012	113.21
>> 46	0.012	117.21
>> 		
>> 48	0.01	99.12
>> 48	0.01	98.99
>> 48	0.01	100.1
>> 48	0.011	108.11
>> 48	0.011	107.66
>> 48	0.011	109.11
>> 48	0.012	118.11
>> 48	0.012	119.21
>> 48	0.012	120.09
>> 
>> The problem I'm seeing is that the graph looks like this:
>>  http://old.nabble.com/file/p31291642/example.png 
>> 
>> You see how the corners look like "horns". I would expect or should say
>> want to have the graph roll more like a ramp. i.e. ramp up towards a
>> higher time value and ramp down towards a lower time value.
>> 
>> Can anyone point out some tips on how to resolve this? Thanks
>> 
> 
> 
http://old.nabble.com/file/p31295507/example2.png 
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Re: [Gnuplot-info] Design of Experiment Data Plotting

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

you are using 'dgrid3d' for mapping the data to a grid
(but you already have your data in grid format).
if you really want this functionality then you should
adjust the number of rows and columns to the data:

set dgrid3d 3 3


chuckh wrote:
> 
> Hi there,
> 
> I'm hoping someone can help me as I've read so much information and
> haven't found out what I am doing wrong.
> 
> Basically I am using a welding technology to develop a process for a
> medical customer. The welding process uses two main input parameters
> (Force and time). The customer is looking for a strong and aesthetically
> pleasing product. The higher the time and force the stronger the result is
> but the worse the aesthetic quality becomes. I'm looking to 3d plot the
> two input parameters and the result of the strength test (pull force
> value) and aesthetic quality (subjective 0-10 rating).
> 
> Example script looks something like the following using gnuplot 4.4 patch
> 3:
> 
> #Force vs. Time vs. Strength
> set xlabel "Force"
> set ylabel "Time"
> set zlabel "Strength"
> set pm3d
> set dgrid3d
> set contour
> set grid
> splot 'XXXXX.dat' with lines
> 
> # XXXXX.dat file looks like the following:
> #left: force   middle: time   right: strength
> 50	0.01	100
> 50	0.01	102.12
> 50	0.01	98.55
> 50	0.011	109.43
> 50	0.011	111.21
> 50	0.011	113.12
> 50	0.012	121.9
> 50	0.012	119.14
> 50	0.012	120.19
> 		
> 46	0.01	98.11
> 46	0.01	96.59
> 46	0.01	95.12
> 46	0.011	104.11
> 46	0.011	103.98
> 46	0.011	105.21
> 46	0.012	115.78
> 46	0.012	113.21
> 46	0.012	117.21
> 		
> 48	0.01	99.12
> 48	0.01	98.99
> 48	0.01	100.1
> 48	0.011	108.11
> 48	0.011	107.66
> 48	0.011	109.11
> 48	0.012	118.11
> 48	0.012	119.21
> 48	0.012	120.09
> 
> The problem I'm seeing is that the graph looks like this:
>  http://old.nabble.com/file/p31291642/example.png 
> 
> You see how the corners look like "horns". I would expect or should say
> want to have the graph roll more like a ramp. i.e. ramp up towards a
> higher time value and ramp down towards a lower time value.
> 
> Can anyone point out some tips on how to resolve this? Thanks
> 

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[Gnuplot-info] Design of Experiment Data Plotting

[chuckh <crh...@ya...>]

Hi there,

I'm hoping someone can help me as I've read so much information and haven't
found out what I am doing wrong.

Basically I am using a welding technology to develop a process for a medical
customer. The welding process uses two main input parameters (Force and
time). The customer is looking for a strong and aesthetically pleasing
product. The higher the time and force the stronger the result is but the
worse the aesthetic quality becomes. I'm looking to 3d plot the two input
parameters and the result of the strength test (pull force value) and
aesthetic quality (subjective 0-10 rating).

Example script looks something like the following using gnuplot 4.4 patch 3:

#Force vs. Time vs. Strength
set xlabel "Force"
set ylabel "Time"
set zlabel "Strength"
set pm3d
set dgrid3d
set contour
set grid
splot 'XXXXX.dat' with lines

# XXXXX.dat file looks like the following:
#left: force   middle: time   right: strength
50	0.01	100
50	0.01	102.12
50	0.01	98.55
50	0.011	109.43
50	0.011	111.21
50	0.011	113.12
50	0.012	121.9
50	0.012	119.14
50	0.012	120.19
		
46	0.01	98.11
46	0.01	96.59
46	0.01	95.12
46	0.011	104.11
46	0.011	103.98
46	0.011	105.21
46	0.012	115.78
46	0.012	113.21
46	0.012	117.21
		
48	0.01	99.12
48	0.01	98.99
48	0.01	100.1
48	0.011	108.11
48	0.011	107.66
48	0.011	109.11
48	0.012	118.11
48	0.012	119.21
48	0.012	120.09

The problem I'm seeing is that the graph looks like this:
http://old.nabble.com/file/p31291642/example.png 

You see how the corners look like "horns". I would expect or should say want
to have the graph roll more like a ramp. i.e. ramp up towards a higher time
value and ramp down towards a lower time value.

Can anyone point out some tips on how to resolve this? Thanks
-- 
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