Seems like Kivy APIs are steered towards Linux systems more than anything. Has anyone success created a kivy atlas on windows using the command prompt?
If so, how is it done?
Full working code please.
Actually this manual works on Windows. You need to use console (press Win+R, type cmd and press Enter).
cd to your project folder and use the following command (with your image filenames and sizes, obviously). And it's dir on Windows, not ls, but otherwise it's the same.
python -m kivy.atlas myatlas 256x256 img1.png img2.png
This simplest way under Windows for me was the following...
Create a script with a string template of the Json code which constructs the atlas.
ImgSize = 512x512
AtlasT = """
{
"run.png": {
%s
}
}
"""
You would then create a loop, that will loop through all directories you specify, gathering all the images and formatting the template.
Save the atlas at the end. All mathematics are calculated by the script based on the size of the images.
If you use the linux terminal command as per the docs, you'll get an error. Just enter this into windows commmand line window - python - m, and hit enter. You'll get an error saying python is not recognized as an external or internal command or something like that.
Linux Ubuntu is far different from Windows. It seems like Linux is always aware of what you install so if you address something by name like, python, you'll get feed back. That's not the same under Windows. In order to use python on windows you really have to point to python.exe.
Don't bother using the kivy docs atlas command line in windows. Windows won't understand kivy.atlas either. It's not Linux!
Related
My goal is to open image files in a default image viewer (Windows 10 Photos app), and close them per user input. My file path contains backslashes, not standard slashes, although replacing them doesn't seem to change the results I mention below.
I tried the following:
Kernel.system('full_path_to_image')
or the same thing using exec instead, but it simply returns a format error Errno::ENOEXEC. Manually entering the file path in the command interpreter works even if the interpreter is opened via:
Kernel.system('cmd')
I tried to avoid the shell by using a multi-argument version of system, but I could not.
Is it possible to do what I want to?
According to this answer, this should work on windows.
system("start #{path_to_image}")
I am a mac user and I have maple installed on my computer. I can open maple like any other app. However I would like to work in terminal. I googled and
found that I can do that but I need to change some path. It was not well explained. I would really appreciate if someone can help me setting my path.
Thanks in advance.
You do not have to adjust the PATH environment variable. Doing so just makes calling the maple launch script for the Commandline Interface (aka CLI) a little easier.
Open a terminal window (xterm). Find the maple script of your Maple installation. Perhaps it will be located in some directory like /Library/Frameworks/Maple.framework/Versions/Current/bin/ say. You should be able to run that script in your terminal by running it using the full name, eg. /Library/Frameworks/Maple.framework/Versions/Current/bin/maple.
You could also alias the full name (explicit location) to some single short word.
That maple script sets everything it needs to run the Maple binaries, etc. You just have to run it (in a terminal).
Or you could make OSX launch a terminal window and call the maple script. Doesn't OSX have an automator for adding such things to the Dock? I forget the syntax but could it be something like,
open -a "/opt/X11/bin/xterm" --args "-e /Library/Frameworks/Maple.framework/Versions/Current/bin/maple"
Since GNU Octave comes wit a GUI since versions 3.8.0, I thought I should check it out.
So since I run Windows and could only find Octave 3.8 for Cygwin, I installed Cygwin and the packages octave, xinit, xlaunch and gnuplot (according to this page, but I don't know if all those packages are needed).
Then, when trying to start Octave with the GUI from Cygwin with octave --force-gui, I initially got the error message
octave: X11 DISPLAY environment variable not set
and Octave would start in console mode. So I found this page, which told me to run
echo "export DISPLAY=:0.0" >>~/.bash_profile
from Cygwin, to permanently get rid of the error message, which worked. However, then I instead got this error message:
octave: unable to open X11 DISPLAY
The same page also said that you have to run the X Server by going to Start -> Cygwin-X -> XWin Server. That worked, but since I don't want the xterm terminal to start since it is not needed, I found this page which told me to run
touch ~/.startxwinrc
from Cygwin to create an empty .startxwinrc file, to prevent the xtrem terminal from starting by default, which worked. The same page also mentioned that the X Server can be started directly from Cygwin with the command startxwin.
So, now I can start Octave with the GUI from Cygwin, simply by running
startxwin
octave --force-gui
However, I would like to just be able to double click on a desktop icon to get everything up and running.
So, to my question: Can I somehow put this in a script file, which when I run it, will be opened in Cygwin so that the commands in the script file will be run in Cygwin? And is there some way to automatically close the X Server after Octave has terminated? I've tried writing a file octave.bat, which starts Cygwin and gives a second batch file as argument, which in turn contains the commands I want to execute. But when I run the first script, I just get bombarded with command prompts (not Cygwin prompts), and the all say
'startxwin' is not recognized as an internal or external command, operable program or batch file.
Why is the second script not opened in Cygwin, and how can I achieve what I want as simply as possible?
Please grab Octave from here: http://mxeoctave.osuv.de/
The installer should configure everything for you.
GNU Octave offers now Windows binary itself. Go to ftp://ftp.gnu.org/gnu/octave/windows/
You have to put
c:\cygwin64\bin\mintty.exe /bin/sh -lc 'startxwin /bin/octave --force-gui'
in your windows batch file (please adapt the Cygwin path to your settings). That worked fine for me.
The call
c:\cygwin64\bin\bash --login -c "startxwin /bin/octave --force-gui"
did open Octave as desired but the GUI seemed to have response issues to the keyboard and froze after clicking into the editor.
I don't have any of the those commands installed with my Cygwin installation, so I can't test this by trying using the following an .bat file on your desktop:
c:\cygwin\bin\bash --login -c "startxwin octave --force-gui"
Replace c:\cygwin with the directory where you installed Cygwin.
If this leaves a console window on the screen try doing:
c:\cygwin\bin\bash --login -c "run startxwin octave --force-gui"
I've got a problem with using Dia from the command line on OSX 10.7.4. I downloaded and installed the OSX dmg from http://dia-installer.de/download/macosx.html I've been using it to create graphics for a paper and absolutely love it.
I'm using a makefile to call pdflatex, bibtex, and R so that that it will build everything from scratch if need be, but can't get Dia's command line to work.
I want to use the command line with -e and -t to export the graphics to a specific directory so that pdflatex can put them in the pdf. (http://dia-installer.de/doc/en/re01.html)
The problem that I'm running into is that anytime I call it from the terminal, it brings up the GUI. Even if I give move to /Applications/Dia.app/Content/Resources/bin/ and use the command "./dia -v". It gives me a bunch of errors about "Input method" and then shows the GUI.
I looked on the Dia FAQ and it has a lot of information for the Windows command line, but nothing for OSX.
I'm hoping that someone here has run into this before and knows how to get it to work.
Thanks in advance.
the background is a shell script to open the .m3u file of a web radio station. Therefore I want to know inside the script, what's the user's program to open such files. At the moment, he has to set the environment variable $PLAYER, but obviously that is not a good way to go.
Alternative: Is there a command that takes a filename and searches itself for an appropriate program to handle that file? Like file, e.g.,
open-file my_playlist.m3u
The script should be portable, it will run at least on Ubuntu, Debian and Windows/Cygwin machines.
Cheers,
This will have to be done differently on each platform. On Mac OS X the "open" command will do what you want.
In Linux it gets murky, since the desktop environment (GNOME or KDE) keeps its own list of applications to run for each file type.
There are two files you can look for in Ubuntu / GNOME that hold this info:
~/.local/share/applications/defaults.list and
~/.local/share/applications/mimeinfo.cache
Someone else hopefully knows how to do this in Windows and can chime in.
Edit: Stealing from the other answers:
Linux:
xdg-open [filename]
Cygwin:
cygstart [filename]
And for completeness, here's a link to a previous question about how to detect which operating system you are running on: Detect OS from bash Script
I'd like if there were a different answer to this but I think you'll have to check the file association configs for every desktop environment and file manager out there (so, nautilus, konqueror, thunar, mc... all in different places and in different formats AFAIK), as well as ascertaining which one of these the user is actually using...
If someone has a different idea I'm keen to hear it.