gnuplot-py-users — A mailing list for the users of Gnuplot.py.

[Gnuplot-py-users] Plotting problem in python

[Hannah S. <han...@co...>]

My previous installation problem is now solved. Hurray! But, now I have a=
 new problem. Trying to=20
actually plot in python brings up a string of errors. My code goes as suc=
h (as per the instructions in a=20
manual I was given):

from Gnuplot import Gnuplot, Data
graph =3D Gnuplot()
results =3D Data(xx, yy)
graph.plot(results)

The arrays xx and yy have been previously defined. It's the last line tha=
t brings up the errors, which are:

Traceback (most recent call last):
  File "<pyshell#3>", line 1, in -toplevel-
    graph.plot(results)
  File "/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/s=
ite-packages/Gnuplot/
_Gnuplot.py", line 274, in plot
    self.refresh()
  File "/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/s=
ite-packages/Gnuplot/
_Gnuplot.py", line 215, in refresh
    self(self.plotcmd + ' ' + string.join(plotcmds, ', '))
  File "/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/s=
ite-packages/Gnuplot/
_Gnuplot.py", line 199, in __call__
    self.gnuplot(s)
  File "/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/s=
ite-packages/Gnuplot/
gp_macosx.py", line 136, in __call__
    self.flush()
IOError: [Errno 32] Broken pipe


I have no idea how to fix this. Once again, any help is very much appreci=
ated.

Hannah

Re: [Gnuplot-py-users] Installing gnuplot-py-1.7 on Mac OSX

[Noel O'B. <no...@ca...>]

You don't need to be administrator,...but it helps.

Otherwise, you can instead install in your local directory. Make a
folder to install into. On my system, I created "/home/no228/python".
Then run install as follows:
"python setup.py install --prefix /home/no228/python"

Then, set the environment variable PYTHONPATH to include this new
location, so that python will be able to find these locally-installed
libraries.

On my system (bash):
"export PYTHONPATH=/home/no228/python/lib/python2.4/site-packages"

To test, type:
$ python
>>> from Gnuplot import *
(there shouldn't be any error messages)

Regards,
 Noel

On Mon, 2006-02-13 at 17:42 +0000, Hannah Singh wrote:
> OK, so I've downloaded and untar'd the gnuplot-py-1.7 file, and tried to install it, but I keep coming up 
> against errors. I suspect this is quite possibly due to my general incompetence, so some help/advice/
> pointers would be greatly appreciated.
> 
> In the readme file it says: 3. Install by changing to the directory and typing "python setup.py install".
> 
> I assumed this meant in terminal, so I went and did that, and got this error: 
> 
> creating /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/Gnuplot
> error: could not create '/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-
> packages/Gnuplot': Permission denied
> 
> Am I right in thinking that this means I haven't installed Gnuplot correctly? If so, what could I have done 
> wrong, as I simply followed the auto-install prompt.
> 
> Many thanks in advance,
> Hannah
> 
> 
> 
> -------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc. Do you grep through log files
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[Gnuplot-py-users] Re: Gnuplot-py-users digest, Vol 1 #161 - 2 msgs

[Hannah S. <han...@co...>]

> On Mon, 13 Feb 2006, Hannah Singh apparently wrote:=20
> > error: could not create=20
> > '/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site=
-=20
> > packages/Gnuplot': Permission denied=20
>=20
> It seems you lack the privileges to create this directory.
> Talk to your systems administrator?

Thanks. The problem is that it's my personal computer, and I'm set as the=
 admin, so I don't know why it=20
won't recognise me. I did change the access so that anyone could rwx, but=
 that didn't seem to do=20
anything. When I entered the "su" command and entered my password, it was=
 rejected. Do you know=20
what's going on?

Many thanks,
Hannah

Re: [Gnuplot-py-users] Installing gnuplot-py-1.7 on Mac OSX

[Jeremy C. <jer...@gm...>]

On 2/13/06, Hannah Singh <han...@co...> wrote:
> OK, so I've downloaded and untar'd the gnuplot-py-1.7 file, and tried to =
install it, but I keep coming up
> against errors. I suspect this is quite possibly due to my general incomp=
etence, so some help/advice/
> pointers would be greatly appreciated.
>
> In the readme file it says: 3. Install by changing to the directory and t=
yping "python setup.py install".
>
> I assumed this meant in terminal, so I went and did that, and got this er=
ror:
>
> creating /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/=
site-packages/Gnuplot
> error: could not create '/Library/Frameworks/Python.framework/Versions/2.=
4/lib/python2.4/site-
> packages/Gnuplot': Permission denied
>
> Am I right in thinking that this means I haven't installed Gnuplot correc=
tly? If so, what could I have done
> wrong, as I simply followed the auto-install prompt.
>
> Many thanks in advance,
> Hannah
>
>
>
Alan is right, you don't have the necessary permissions.  If you are
an administrator on the computer you can simply use the "sudo" command
immediately before the install command like

sudo python setup.py install

It will ask for your password and then install it for you.  I didn't
have any issues when I installed it on Tiger.
Jeremy

Re: [Gnuplot-py-users] Installing gnuplot-py-1.7 on Mac OSX

[Alan G I. <ai...@am...>]

On Mon, 13 Feb 2006, Hannah Singh apparently wrote: 
> error: could not create 
> '/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site- 
> packages/Gnuplot': Permission denied 

It seems you lack the privileges to create this directory.
Talk to your systems administrator?

fwiw,
Alan Isaac

[Gnuplot-py-users] Installing gnuplot-py-1.7 on Mac OSX

[Hannah S. <han...@co...>]

OK, so I've downloaded and untar'd the gnuplot-py-1.7 file, and tried to =
install it, but I keep coming up=20
against errors. I suspect this is quite possibly due to my general incomp=
etence, so some help/advice/
pointers would be greatly appreciated.

In the readme file it says: 3. Install by changing to the directory and t=
yping "python setup.py install".

I assumed this meant in terminal, so I went and did that, and got this er=
ror:=20

creating /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/=
site-packages/Gnuplot
error: could not create '/Library/Frameworks/Python.framework/Versions/2.=
4/lib/python2.4/site-
packages/Gnuplot': Permission denied

Am I right in thinking that this means I haven't installed Gnuplot correc=
tly? If so, what could I have done=20
wrong, as I simply followed the auto-install prompt.

Many thanks in advance,
Hannah

[Gnuplot-py-users] Numeric <24.0 and Numpy array cause Gnuplot-Py ploting problem

[iCy-fLaME <icy...@gm...>]

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Re: [Gnuplot-py-users] Could you show me the error when I install gnuplot-py-1.7

[Noel O'B. <no...@ca...>]

Cygwin has its own version of Python. You appear to be confusing the
Cygwin Python with a version of Python installed on Windows.

In Windows, I prefer the the Windows version of Python and the Windows
version of Gnuplot, as they integrate better with Windows.

Is there some particular reason you prefer the cygwin versions?

Regards,
 Noel

On Fri, 2006-01-20 at 16:37 -0800, Nguyen Quang Chien wrote:
> Dear Sir or Madam,
>=20
> I have encountered an error when installing the gnuplot-py-1.7. I used
> cygwin and when performed setup, the message was as follows:
>=20
> File "/cygdrive/d/Setup
> opensource/Python-related/gnuplot-py-1.7/PlotItems.py", line 26, in ?
> import Numeric
> ImportError: No module named Numeric
>=20
> When I opened the PlotItems.py, the content was as follows:
>=20
> import os, string, tempfile, types
>=20
> try:
>     from cStringIO import StringIO
> except ImportError:
>     from StringIO import StringIO
>=20
> import Numeric
>=20
> import gp, utils, Errors
> # ... more codes
>=20
> I am sure that I have installed Numeric module, as I can call it well
> from the interactive prompt:
>=20
> PythonWin 2.4.2 (#67, Oct 30 2005, 16:11:18) [MSC v.1310 32 bit
> (Intel)] on win32.
> Portions Copyright 1994-2004 Mark Hammond (mha...@sk...)
> - see 'Help/About PythonWin' for further copyright information.
> >>> import Numeric
> >>> =20
>=20
> So could you tell me how to fix this error ? Thank you very much.
>=20
> With best regard,
> Q.C. Nguyen
>=20
>=20
>=20
> ______________________________________________________________________
> Yahoo! Photos =96 Showcase holiday pictures in hardcover
> Photo Books. You design it and we=92ll bind it!

[Gnuplot-py-users] Could you show me the error when I install gnuplot-py-1.7

[Nguyen Q. C. <ngu...@ya...>]

Dear Sir or Madam,

I have encountered an error when installing the gnuplot-py-1.7. I used cygwin and when performed setup, the message was as follows:

 File "/cygdrive/d/Setup opensource/Python-related/gnuplot-py-1.7/PlotItems.py", line 26, in ?
import Numeric
ImportError: No module named Numeric
 
When I opened the PlotItems.py, the content was as follows:

import os, string, tempfile, types

try:
    from cStringIO import StringIO
except ImportError:
    from StringIO import StringIO

import Numeric

import gp, utils, Errors
# ... more codes

I am sure that I have installed Numeric module, as I can call it well from the interactive prompt:

PythonWin 2.4.2 (#67, Oct 30 2005, 16:11:18) [MSC v.1310 32 bit (Intel)] on win32.
Portions Copyright 1994-2004 Mark Hammond (mha...@sk...) - see 'Help/About PythonWin' for further copyright information.
>>> import Numeric
>>>  

So could you tell me how to fix this error ? Thank you very much.

With best regard,
Q.C. Nguyen


		
---------------------------------
Yahoo! Photos – Showcase holiday pictures in hardcover
 Photo Books. You design it and we’ll bind it!

Re: [Gnuplot-py-users] Gnuplot-py on Cygwin/X

[Michael H. <mh...@al...>]

Crider, Joseph A wrote:
> I've been looking at open source plotting packages for Python to use in
> a new internal project I'm heading up.  At a minimum, the platforms we
> want to support are Linux, Solaris, and Cygwin/X.  Now that all of the
> plotting packages are being dropped from SciPy (and gplt didn't support
> all of the features we need anyway), it appears that we will have to
> choose between Gnuplot-py and Matplotlib or roll our own.
> 
> Since Gnuplot does support all of the features we need, I believe
> Gnuplot-py would be sufficient for our needs.  However, I've got one
> small problem with version 1.7 on Cygwin/X for which I've found one
> solution, but I would like to know if anyone has come up with a better
> solution.  My first attempt to use Gnuplot-py failed miserably, but that
> appears to have been a problem with my Cygwin installation.  After
> re-installing a recent version, it is going much better.  However, I had
> to make two changes to gp_cygwin.py:  change the values of
> gnuplot_command to 'gnuplot.exe' (line 41) and default_term to 'x11'
> (line 60).  Is there a better solution so that I would not have to
> maintain these changes if a newer version of Gnuplot-py is released that
> I want to use?

Unless you are suggesting that this should be changed for all Cygwin
users, the best solution is for you to set these options before
instantiating the Gnuplot object:

>>> import Gnuplot
>>> Gnuplot.GnuplotOpts.gnuplot_command = 'gnuplot.exe'
>>> Gnuplot.GnuplotOpts.default_term = 'x11'
>>> g = Gnuplot.Gnuplot()
>>> ...

Michael

[Gnuplot-py-users] Gnuplot-py on Cygwin/X

[Crider, J. A <jos...@Bo...>]

I've been looking at open source plotting packages for Python to use in
a new internal project I'm heading up.  At a minimum, the platforms we
want to support are Linux, Solaris, and Cygwin/X.  Now that all of the
plotting packages are being dropped from SciPy (and gplt didn't support
all of the features we need anyway), it appears that we will have to
choose between Gnuplot-py and Matplotlib or roll our own.

Since Gnuplot does support all of the features we need, I believe
Gnuplot-py would be sufficient for our needs.  However, I've got one
small problem with version 1.7 on Cygwin/X for which I've found one
solution, but I would like to know if anyone has come up with a better
solution.  My first attempt to use Gnuplot-py failed miserably, but that
appears to have been a problem with my Cygwin installation.  After
re-installing a recent version, it is going much better.  However, I had
to make two changes to gp_cygwin.py:  change the values of
gnuplot_command to 'gnuplot.exe' (line 41) and default_term to 'x11'
(line 60).  Is there a better solution so that I would not have to
maintain these changes if a newer version of Gnuplot-py is released that
I want to use?

J. Allen Crider

Re[2]: [Gnuplot-py-users] plotting dates

[Alan G I. <ai...@am...>]

On Tue, 10 Jan 2006, Michael Haggerty apparently wrote: 
> that leaves the more difficult question of how you can 
> output time data from Gnuplot.py.  Unfortunately, there is 
> no support for time data built in.  You could output the 
> data to a file via another mechanism then plot it using 
> a Gnuplot.File object.  Or you could hack Gnuplot.py to 
> add support for time data. 

Note that Allin Cottrell has done this for gretl, which uses 
gnuplot to plot.  So look there in hopes on not having to 
reinvent the wheel.  Also, the Matplotlib date handling 
routines might be useful; they work remarkably well.

fwiw,
Alan Isaac

Re: [Gnuplot-py-users] pm3d in several surfaces

[<al...@mm...>]

> I suggest that you find out how to do what you need to do using gnuplot
> and let us know.  Then we might be able to get Gnuplot.py to do the same
> thing.

  You're right, 
  I'm going to investigate it with naked gnuplot, and you'll know about.
  Thanks everybody

-------------------------------------------------
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Re: [Gnuplot-py-users] choose the color

[<al...@mm...>]

Thank you very much!
It works like charm!
> 
> >>> import Gnuplot
> >>> Gnuplot.GnuplotOpts.gnuplot_command = \
> ...     "gnuplot -xrm 'gnuplot*line2Color:yellow'"
> 
> (before creating your Gnuplot.Gnuplot object).

Albert



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Re: [Gnuplot-py-users] plotting dates

[Michael H. <mh...@al...>]

frank h. wrote:
> I am not sure I understand gnuplot.py completely yet
> but I havent found a way to plot a timeseries, e.g.
> 
> set xdata time
> 
> in gnuplot speak
> 
> how would one go about this with gnuplot.py?

In general, you can send any command to gnuplot by using

>>> g = Gnuplot.Gnuplot()
>>> g('set xdata time')

But that leaves the more difficult question of how you can output time
data from Gnuplot.py.  Unfortunately, there is no support for time data
built in.  You could output the data to a file via another mechanism
then plot it using a Gnuplot.File object.  Or you could hack Gnuplot.py
to add support for time data.

This has been discussed before; see for example

http://sourceforge.net/mailarchive/message.php?msg_id=2172189
http://sourceforge.net/mailarchive/message.php?msg_id=11511622
http://sourceforge.net/mailarchive/message.php?msg_id=2179048

Michael

Re: [Gnuplot-py-users] choose the color

[Michael H. <mh...@al...>]

al...@mm... wrote:
> I'm trying to change the color of a function... and I can't.
> I used to call, for example:
> gnuplot -xrm 'gnuplot*line2Color:yellow', 
> 
> but, of course I can't do this now, so
> how can I do it?
> 
> One more thing. I can't change the file .Xdefaults because I'm not the system
> administrator.
> 
> Thank you very much...
> at least there's somebody on the other side... ;)

Assuming that you are on a Unix/Linux system, it is usually the case
that the login process causes a file in your home directory to be read
and added to the X resources.  For example, on my linux setup the magic
file is called ".Xresources".

Alternatively, you can load properties into your X resources manually
using the "xrdb" command.

Finally, if you only want these properties to be set when you are using
Gnuplot.py, you could add the command-line options to the
gnuplot_command variable as follows:

>>> import Gnuplot
>>> Gnuplot.GnuplotOpts.gnuplot_command = \
...     "gnuplot -xrm 'gnuplot*line2Color:yellow'"

(before creating your Gnuplot.Gnuplot object).

Michael

Re: [Gnuplot-py-users] pm3d in several surfaces

[Michael H. <mh...@al...>]

al...@mm... wrote:
>>4. Try a simple example with "naked" gnuplot, rather than Gnuplot.py,
>>using temporary files to hold the data.  Does it do what you expect?
> 
>     No, it does the same... ;P

I suggest that you find out how to do what you need to do using gnuplot
and let us know.  Then we might be able to get Gnuplot.py to do the same
thing.

Michael

Re: [Gnuplot-py-users] pm3d in several surfaces

[<al...@mm...>]

> al...@mm... wrote:
> > I want to use gnuplot.py to represent several "4D" surfaces in the same
> plot, so
> > I write something like:
> >
> >   data1 = [
> >     [
> >         [1,1,z1(1,1),val1(1,1)],
> >         [1,2,z1(1,2),val1(1,2)],
> >         [1,3,z1(1,3),val1(1,3)],
> >     ],
> >     [
> >         [2,1,z1(2,1),val1(2,1)],
> >         [2,2,z1(2,2),val1(2,2)],
> >         [2,3,z1(2,3),val1(2,3)],
> >     ],
> >     ...
> >     ]
> >
> >   data2 = [
> >     [
> >         [1,1,z2(1,1),val2(1,1)],
> >         [1,2,z2(1,2),val2(1,2)],
> >         [1,3,z2(1,3),val2(1,3)],
> >     ],
> >     [
> >         [2,1,z2(2,1),val2(2,1)],
> >         [2,2,z2(2,2),val2(2,2)],
> >         [2,3,z2(2,3),val2(2,3)],
> >     ],
> >     ...
> >     ],
> >
> >   ...
> >
> >   dataN = ...
> >
> >   and then, data = [Gnuplot.Data(data1, using=(1,2,3,4), inline = 1),
> >                     Gnuplot.Data(data2, using=(1,2,3,4), inline = 1),
> >                     ...
> >                     Gnuplot.Data(dataN, using=(1,2,3,4), inline = 1)]
> >
> >   So, when I go to plot:
> >     g = Gnuplot.Gnuplot(debug = 1)
> >     g.splot(*data)
> >
> >   it seems something works because you can read:
> >   gnuplot> splot '-' using 1:2:3:4 notitle, '-' using 1:2:3:4 notitle, '-'
> using
> > 1:2:3:4 notitle, '-' using 1:2:3:4 notitle, '-' using 1:2:3:4 notitle
> >   on your terminal, but only the last surface is plotted, maybe because
> the
> > (x,y) pairs are the same in data1, data2, ...
> >
> >   So, how can I solve this?
> >   My target is to see all the 3D points in different colors or something
> like
> > that... do you understand?
>
> I'm a bit out of practice.  How do you expect the four values to be
> used?  Usually splot uses (x,y,z) triplets, no?
    I expect to see surfaces by (x,y,z) coloured in function of val, i.e., if
val is high I want to see the point in yellow and if it is low in black.
    
> Otherwise I don't see why this shouldn't work.  I can't imagine that it
> would be a problem that the (x,y) pairs are the same.  Ideas:
>
> 1. If you have hidden line removal on (which is the default, I think) it
> could be that all of your surfaces are being plotted but the top surface
> is visually obscuring the other surfaces.
    How do I know it? I tried with set & unset hidden3d, but it looks like the
same...  

>
> 2. If your z values are all the same, then you would not see distinct
> surfaces.
    You're right, but they aren't the same  
  
> 3. Try the same thing without the inline=1 option.  Does that work?
> (This would imply a Gnuplot.py bug.)
    It works the same.

> 4. Try a simple example with "naked" gnuplot, rather than Gnuplot.py,
> using temporary files to hold the data.  Does it do what you expect?
    No, it does the same... ;P
 
> Michael


In fact I can see the points colored typping
 splot  "temp.plot" using 1:2:3:4 with points pointtype 7 palette
but with no surface... (temp.plot is a file with the same data)

Maybe I shoud read the entire gnuplot tutorial... but I find it really boring...
;)

thank you very much!
Albert








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[Gnuplot-py-users] choose the color

[<al...@mm...>]

Hi everybody, 
I'm trying to change the color of a function... and I can't.
I used to call, for example:
gnuplot -xrm 'gnuplot*line2Color:yellow', 

but, of course I can't do this now, so
how can I do it?

One more thing. I can't change the file .Xdefaults because I'm not the system
administrator.

Thank you very much...
at least there's somebody on the other side... ;)
Albert

-------------------------------------------------
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[Gnuplot-py-users] plotting dates

[frank h. <fra...@gm...>]

Hello,
I am not sure I understand gnuplot.py completely yet
but I havent found a way to plot a timeseries, e.g.

set xdata time

in gnuplot speak

how would one go about this with gnuplot.py?
thanks,
-frank

Re: [Gnuplot-py-users] pm3d in several surfaces

[Michael H. <mh...@al...>]

al...@mm... wrote:
> I want to use gnuplot.py to represent several "4D" surfaces in the same plot, so
> I write something like:
> 
>   data1 = [
>     [
>         [1,1,z1(1,1),val1(1,1)],
>         [1,2,z1(1,2),val1(1,2)],
>         [1,3,z1(1,3),val1(1,3)],
>     ],
>     [
>         [2,1,z1(2,1),val1(2,1)],
>         [2,2,z1(2,2),val1(2,2)],
>         [2,3,z1(2,3),val1(2,3)],
>     ],
>     ...
>     ]
> 
>   data2 = [
>     [
>         [1,1,z2(1,1),val2(1,1)],
>         [1,2,z2(1,2),val2(1,2)],
>         [1,3,z2(1,3),val2(1,3)],
>     ],
>     [
>         [2,1,z2(2,1),val2(2,1)],
>         [2,2,z2(2,2),val2(2,2)],
>         [2,3,z2(2,3),val2(2,3)],
>     ],
>     ...
>     ], 
> 
>   ...
> 
>   dataN = ...
> 
>   and then, data = [Gnuplot.Data(data1, using=(1,2,3,4), inline = 1), 
>                     Gnuplot.Data(data2, using=(1,2,3,4), inline = 1),
>                     ...
>                     Gnuplot.Data(dataN, using=(1,2,3,4), inline = 1)]
> 
>   So, when I go to plot:
>     g = Gnuplot.Gnuplot(debug = 1)
>     g.splot(*data)
> 
>   it seems something works because you can read:
>   gnuplot> splot '-' using 1:2:3:4 notitle, '-' using 1:2:3:4 notitle, '-' using
> 1:2:3:4 notitle, '-' using 1:2:3:4 notitle, '-' using 1:2:3:4 notitle
>   on your terminal, but only the last surface is plotted, maybe because the
> (x,y) pairs are the same in data1, data2, ...
> 
>   So, how can I solve this?
>   My target is to see all the 3D points in different colors or something like
> that... do you understand?

I'm a bit out of practice.  How do you expect the four values to be
used?  Usually splot uses (x,y,z) triplets, no?

Otherwise I don't see why this shouldn't work.  I can't imagine that it
would be a problem that the (x,y) pairs are the same.  Ideas:

1. If you have hidden line removal on (which is the default, I think) it
could be that all of your surfaces are being plotted but the top surface
is visually obscuring the other surfaces.

2. If your z values are all the same, then you would not see distinct
surfaces.

3. Try the same thing without the inline=1 option.  Does that work?
(This would imply a Gnuplot.py bug.)

4. Try a simple example with "naked" gnuplot, rather than Gnuplot.py,
using temporary files to hold the data.  Does it do what you expect?

Michael

[Gnuplot-py-users] posting

[<al...@mm...>]

al...@mm...

this is my email.
I want to post the following message:
 
Hi everybody,
I want to use gnuplot.py to represent several "4D" surfaces in the same plot, so
I write something like:

  data1 = [
    [
        [1,1,z1(1,1),val1(1,1)],
        [1,2,z1(1,2),val1(1,2)],
        [1,3,z1(1,3),val1(1,3)],
    ],
    [
        [2,1,z1(2,1),val1(2,1)],
        [2,2,z1(2,2),val1(2,2)],
        [2,3,z1(2,3),val1(2,3)],
    ],
    ...
    ]

  data2 = [
    [
        [1,1,z2(1,1),val2(1,1)],
        [1,2,z2(1,2),val2(1,2)],
        [1,3,z2(1,3),val2(1,3)],
    ],
    [
        [2,1,z2(2,1),val2(2,1)],
        [2,2,z2(2,2),val2(2,2)],
        [2,3,z2(2,3),val2(2,3)],
    ],
    ...
    ],

  ...
 
  dataN = ...

  and then, data = [Gnuplot.Data(data1, using=(1,2,3,4), inline = 1),
                    Gnuplot.Data(data2, using=(1,2,3,4), inline = 1),
                    ...
                    Gnuplot.Data(dataN, using=(1,2,3,4), inline = 1)]

  So, when I go to plot:
    g = Gnuplot.Gnuplot(debug = 1)
    g.splot(*data)

  it seems something works because you can read:
  gnuplot> splot '-' using 1:2:3:4 notitle, '-' using 1:2:3:4 notitle, '-' using
1:2:3:4 notitle, '-' using 1:2:3:4 notitle, '-' using 1:2:3:4 notitle
  on your terminal, but only the last surface is plotted, maybe because the
(x,y) pairs are the same in data1, data2, ...

  So, how can I solve this?
  My target is to see all the 3D points in different colors or something like
that... do you understand?

  Many thanks in advance,
  and have happy new year!
  Albert

  P.S.-the same happens if I type
     apply(g.splot, data)
     instead of g.splot(*data)



I sent it before, so I don't know if you need it again,
Many thanks, 
Albert

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[Gnuplot-py-users] pm3d in several surfaces

[<al...@mm...>]

Hi everybody,
I want to use gnuplot.py to represent several "4D" surfaces in the same plot, so
I write something like:

  data1 = [
    [
        [1,1,z1(1,1),val1(1,1)],
        [1,2,z1(1,2),val1(1,2)],
        [1,3,z1(1,3),val1(1,3)],
    ],
    [
        [2,1,z1(2,1),val1(2,1)],
        [2,2,z1(2,2),val1(2,2)],
        [2,3,z1(2,3),val1(2,3)],
    ],
    ...
    ]

  data2 = [
    [
        [1,1,z2(1,1),val2(1,1)],
        [1,2,z2(1,2),val2(1,2)],
        [1,3,z2(1,3),val2(1,3)],
    ],
    [
        [2,1,z2(2,1),val2(2,1)],
        [2,2,z2(2,2),val2(2,2)],
        [2,3,z2(2,3),val2(2,3)],
    ],
    ...
    ], 

  ...

  dataN = ...

  and then, data = [Gnuplot.Data(data1, using=(1,2,3,4), inline = 1), 
                    Gnuplot.Data(data2, using=(1,2,3,4), inline = 1),
                    ...
                    Gnuplot.Data(dataN, using=(1,2,3,4), inline = 1)]

  So, when I go to plot:
    g = Gnuplot.Gnuplot(debug = 1)
    g.splot(*data)

  it seems something works because you can read:
  gnuplot> splot '-' using 1:2:3:4 notitle, '-' using 1:2:3:4 notitle, '-' using
1:2:3:4 notitle, '-' using 1:2:3:4 notitle, '-' using 1:2:3:4 notitle
  on your terminal, but only the last surface is plotted, maybe because the
(x,y) pairs are the same in data1, data2, ...

  So, how can I solve this?
  My target is to see all the 3D points in different colors or something like
that... do you understand?

  Many thanks in advance, 
  and have happy new year!
  Albert

  P.S.-the same happens if I type 
     apply(g.splot, data) 
     instead of g.splot(*data)
    

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Re: [Gnuplot-py-users] [Patch] Add capability to save GridData and Data to files

[Michael H. <mh...@al...>]

Matthew Fulmer wrote:
> I made the changes you requested it and tested it via test.py. I
> also replaced occurences of the deprecated apply function with
> the recommended syntax. I did this because it makes it easier to
> call the _NewFileItem with keyword parameters that are not part
> of keyw (like filename). I will reverse that change if necessary
> (tested with python 2.4).
> 
> I am subscribed to the mailing list now (I had a procmail bug
> that sent the subscription confirmation to the wrong place).
> Here is the new patch

Thanks again.  I just committed this patch to CVS.

Michael

Re: [Gnuplot-py-users] Survey: python version requirements for Gnuplot.py

[Noel O'B. <no...@ca...>]

I think Python 2.2 is quite reasonable. In fact, I would say that Python
2.3 is quite reasonable too, but maybe some platforms still don't
support it?

I mean, if some software is still using a version of Python that came
out X years ago, is it still being actively maintained?

Regards,
 Noel

On Thu, 2005-12-15 at 23:12 -0500, Alan G Isaac wrote:
> On Thu, 15 Dec 2005, Michael Haggerty apparently wrote: 
> > I also ask whether there are people who would be upset by 
> > jumping the Python version requirement directly to Python 
> > 2.2. 
> 
> How about 2.3?  ;-)
> http://www.python.org/2.3/highlights.html
> Anyway, go for it!
> 
> Cheers,
> Alan Isaac
> 
> 
> 
> 
> 
> 
> -------------------------------------------------------
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