Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-20 Thread Bruno Chareyre
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Bruno Chareyre posted a new comment:
Hi Son,
As advised some time ago downloading the zip tarball is the last thing you want 
to do.
I again suggest to checkout using git. Also yadedaily should have the 
TWOPHASEFLOW feature enabled in latest versions, so you don't really need to 
compile, hopefully.
Cheers
Bruno

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Son Pham Thai
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Son Pham Thai posted a new comment:
Hi,

Sorry for the late reply, I just had a meeting.

I have also tried installing Yade in another PC (with Ubuntu 14.04) and
I got the same error.

I just want to know what my mistake is.

Thank you all for your time and advise!
Cheers, 
Son

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Jan Stránský
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Status: Open => Answered

Jan Stránský proposed the following answer:
> My initial desire is how to fix the error of this "plot" function.

you need to define plot.plots before:

from yade import plot
plot.plots = {'x':'y'} # or something else, see [1]

Jan

[1] https://yade-dem.org/doc/user.html#plotting-variables

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Son Pham Thai
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Status: Answered => Open

Son Pham Thai is still having a problem:
Hi Jérôme,

Thank you for the YADE installation clarification and I am sorry for my
wrong description regarding "yade-daily package".

Considering the YADE version I have now:
$ ./yade-Unknown
Welcome to Yade Unknown 

DEBUG /home/son/Desktop/myYade/trunk/core/Omega.hpp:106 Omega:
Constructing Omega.

DEBUG /home/son/Desktop/myYade/trunk/core/Omega.cpp:209 loadPlugins:
Loading plugin /home/son/Desktop/myYade/install/lib/x86_64-linux-gnu
/yade-Unknown/libyade.so

DEBUG /home/son/Desktop/myYade/trunk/core/Omega.cpp:134
buildDynlibDatabase: called with 299 plugins.

...

DEBUG /home/son/Desktop/myYade/trunk/pkg/dem/FlatGridCollider.cpp:44 
initIndices: sphereIdx=1
DEBUG /home/son/Desktop/myYade/trunk/pkg/dem/FlatGridCollider.cpp:44 
initIndices: sphereIdx=1

TCP python prompt on localhost:9000, auth cookie `eyuscd'
XMLRPC info provider on http://localhost:21000
[[ ^L clears screen, ^U kills line. F8 plot. ]]

And by the way, when I press F8, I got this error:

Yade [1]: import yade.plot; yade.plot.plot();
---
IndexErrorTraceback (most recent call last)
/home/son/Desktop/myYade/install/bin/yade-Unknown in ()
> 1 import yade.plot; yade.plot.plot();

/home/son/Desktop/myYade/install/lib/x86_64-linux-gnu/yade-Unknown/py/yade/plot.pyc
 in plot(noShow, subPlots)
595 global currLineRefs
596 figs=set([l.line.axes.get_figure() for l in currLineRefs])
--> 597 if not hasattr(list(figs)[0],'show') and not noShow:
598 import warnings
599 warnings.warn('plot.plot not showing figure (matplotlib 
using headless backend?)')

IndexError: list index out of range

My initial desire is how to fix the error of this "plot" function.

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Jan Stránský
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Jan Stránský posted a new comment:
Concerning your errors, I don't know how to fix them, please open a new 
question with the problem compiling with -DUSE_QT5=ON.
Jan

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Jérôme Duriez
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Jérôme Duriez proposed the following answer:
For further clarification Son, what we refer to with "yade-daily package" is a 
Yade version that Linux users can install without compiling anything, using 
classical Linux package management tools (like apt-get, ..)
That corresponds to https://yade-dem.org/doc/installation.html#packages (and 
only this "Packages" part of the installation webpage)

All installation instructions starting from https://yade-
dem.org/doc/installation.html#source-code refer to an installation
through source code compilation. You got this source code in the zip
file you downloaded from gitHub.


Lastly, your "unknown" is not the "version" of your Yade, it's just a suffix 
appended to the Yade executable (Python script, actually) and that you could 
specify during compilation process (but you did not, thus "unknown")

What we actually call Yade version is what Yade (whatever the installation 
method) outputs at startup. Give a closer look to your terminal and you should 
see something like Jan mentioned in #6, eg 2018.02b-75-657a5bd~xenial. 
This reflects the development stage that is behind your Yade program, and is 
supposed to change with time (if you update your yade* packages, or if you 
download in a couple of weeks another zip file from gitHub)

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Son Pham Thai
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Son Pham Thai posted a new comment:
Hi Jan,

When I  recompiled with -DUSE_QT5=ON, I got cmake error:

CMake Error at CMakeLists.txt:246 (FIND_PACKAGE):
  Could not find a package configuration file provided by "Qt5" with any of
  the following names:

Qt5Config.cmake
qt5-config.cmake

  Add the installation prefix of "Qt5" to CMAKE_PREFIX_PATH or set "Qt5_DIR"
  to a directory containing one of the above files.  If "Qt5" provides a
  separate development package or SDK, be sure it has been installed.


-- Configuring incomplete, errors occurred!

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Jan Stránský
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Jan Stránský requested more information:
Thanks for clarification, now it is clear that what you use is not "Yade-daily 
package" :-)
Is it possible for you to try to recompile with -DUSE_QT5=ON ?
cheers
Jan

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Son Pham Thai
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Son Pham Thai posted a new comment:
Hi Jan,

1. What I have done:

sudo add-apt-repository ppa:yade-users/external
sudo apt-get update

sudo apt-get install cmake git freeglut3-dev libloki-dev \
libboost-all-dev fakeroot dpkg-dev build-essential g++ \
python-dev ipython python-matplotlib libsqlite3-dev python-numpy python-tk 
gnuplot \
libgts-dev python-pygraphviz libvtk6-dev python-numpy libeigen3-dev \
python-xlib python-pyqt5 pyqt5-dev-tools python-pyqt5.qtwebkit 
gtk2-engines-pixbuf python-argparse \
libqglviewer-dev python-imaging libjs-jquery python-sphinx python-git 
python-bibtex \
libxmu-dev libxi-dev libcgal-dev help2man libbz2-dev zlib1g-dev python-minieigen

(after this command, i got:
Note, selecting 'libpython2.7-stdlib' instead of 'python-argparse'
E: Unable to locate package python-pyqt5
E: Unable to locate package python-pyqt5.qtwebkit
E: Couldn't find any package by regex 'python-pyqt5.qtwebkit'

sudo apt-get install python-gts
sudo apt-get install libopenblas-dev libsuitesparse-metis-dev

sudo add-apt-repository ppa:yade-users/external
sudo apt-get update

My folder structure:
myYade/
trunk/ ## downloaded from https://github.com/yade/trunk
build/ ## 
install/ ## initially is a blank folder

 cd Desktop/myYade/build

cmake -DCMAKE_INSTALL_PREFIX=/home/son/Desktop/myYade/install
/home/son/Desktop/myYade/trunk -DUSE_QT5=OFF -DTWOPHASEFLOW=ON
-DDEBUG=ON

make -j4


make install

cd

cd Desktop/myYade/install/bin

./yade-Unknown


2. When I installed default Ubuntu yade by:
sudo apt-get install yade

Then I got no error with those plot commands:

 ->  [4]: []

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Jan Stránský
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Jan Stránský requested more information:
Ok, now I am a bit confused:

> I am using Ubuntu 16.04 and Yade-daily package.

> I followed this instruction: 
> https://yade-dem.org/doc/installation.html#compilation
> I downloaded the zip file from : https://github.com/yade/trunk
> and then exact that zip file to my "trunk" folder.
> By doing this, I got version id for my Yade as "Unknown"

These two your statements are completely different. Please describe more
how you installed the problematic version of yade and how you run it..

Another test, if you install default Ubuntu yade
sudo apt-get install yade
start "yade" in terminal and use those commands, do you still have the error?

cheers
Jan

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Son Pham Thai
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Son Pham Thai posted a new comment:
Hi Jan,

I followed this instruction:
https://yade-dem.org/doc/installation.html#compilation

I downloaded the zip file from :
https://github.com/yade/trunk

and then exact that zip file to my "trunk" folder.

By doing this, I got version id for my Yade as "Unknown"

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Jan Stránský
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Jan Stránský requested more information:
What is the version of your yadedaily? i.e. if you start it, it writes (in my 
case which works) "Welcome to Yade 2018.02b-75-657a5bd~xenial"
thanks
Jan

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Son Pham Thai
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Son Pham Thai posted a new comment:
Hi Jérôme,

Using ipython, I got no error:

Out[4]: []

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Jérôme Duriez
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Status: Open => Answered

Jérôme Duriez proposed the following answer:
Hi,

What happens if you launch these commands directly in Python ?

(Eg ask for "ipython" instead of "yadedaily" in your terminal, then type
the commands you mentioned)

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Son Pham Thai
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Status: Solved => Open

Son Pham Thai is still having a problem:
Hi,

What a shame on me, I just realized that  I was in my Ubuntu 14 OS (not
Ubuntu 16), that's why I did not have the mentioned problem. The problem
in Ubuntu 16 is still there.

@Jan,
I did not run any code before, just fresh start Yade and run that code and got 
the above error.

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Son Pham Thai
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Status: Needs information => Solved

Son Pham Thai confirmed that the question is solved:
Hi Jan,

I used Ubuntu 14.04 and there was no problem. When I install Ubuntu 16
and install Yade, I got this problem. I have tried again and I think the
problem could somehow relate to this (part of instruction for
installation in [1]):

sudo apt-get install cmake git freeglut3-dev libloki-dev \
libboost-all-dev fakeroot dpkg-dev build-essential g++ \
python-dev ipython python-matplotlib libsqlite3-dev python-numpy python-tk 
gnuplot \
libgts-dev python-pygraphviz libvtk6-dev python-numpy libeigen3-dev \
python-xlib python-pyqt5 pyqt5-dev-tools python-pyqt5.qtwebkit 
gtk2-engines-pixbuf python-argparse \
libqglviewer-dev python-imaging libjs-jquery python-sphinx python-git 
python-bibtex \
libxmu-dev libxi-dev libcgal-dev help2man libbz2-dev zlib1g-dev python-minieigen

I try re-running this command again with separated  line (not using \
anymore) and the problem with plot function is gone.


[1]. https://yade-dem.org/doc/installation.html

My problem has been solved.

Thank you ;)
Son

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Re: [Yade-users] [Question #668081]: Problem with matplotlib.pyplot

2018-04-19 Thread Jan Stránský
Question #668081 on Yade changed:
https://answers.launchpad.net/yade/+question/668081

Status: Open => Needs information

Jan Stránský requested more information:
Hello,
on Ubuntu 16.04 I just installed yadedaily, tried your code, but got no error.. 
Do you run any code before these instructions, or you get the error in fresh 
yadedaily session?
cheers
Jan

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