On Thu, Jun 14, 2018 at 11:46 AM Vincent Delecroix <20100.delecr...@gmail.com> wrote: > > On 01/06/2018 23:40, Erik Bray wrote: > > On Friday, June 1, 2018 at 3:32:19 PM UTC+2, Francesco wrote: > >> > >> Hello everyone. > >> My installation is Sage 8.2 and windows 10 64bit, with imagemagick and > >> ffmpeg installed. I send these commands to sage: ( an example of reference > >> manual ) > >> > >> sage: sines = [plot(c*sin(x), (-2*pi,2*pi), color=Color(c,0,0), ymin=-1, > >> ymax=1) for c in sxrange(0,1,.2)] > >> sage: a = animate(sines) > >> sage: a.show() > >> > >> > >> > >> after the last command sage tells: > >> convert.exe: unable to open image > >> '/dot_sage/temp/DESKTOP-JPA9NBD/7980/tmp_xZEVL6.gif': No such file or > >> directory @ error/blob.c/OpenBlob/3335. > >> /opt/sagemath-8.2/local/lib/python2.7/site-packages/sage/repl/rich_output/ > >> display_manager.py:590: RichReprWarning: Exception in _rich_repr_ while > >> displaying object: > >> Error: Cannot generate GIF animation. Verify that convert > >> (ImageMagick) or ffmpeg is installed, and that the objects passed to > >> the animate command can be saved in PNG image format. > >> > >> See www.imagemagick.org and www.ffmpeg.org for more information. > >> RichReprWarning, > >> Animation with 5 frames > >> > >> > >> But imagemagick and ffmpeg are installed! > >> Is it a bug ? > >> > > I don't know. How did you install imagemagick and/or ffmpeg? > > From the error message, the problem does not seem to come from > a problem with the program (convert.exe). Rather the "cygwin" version of > the path "/dot_sage/temp/DESKTOP-JPA9NBD/7980/tmp_xZEVL6.gif" > seems not understood. Could it be possible that > convert.exe would like something like C:/path/to/my/gif? > > Erik, is there a straightforward path conversion cygwin <-> windows? > > > (I didn't even now Sage did anything with these--are they optional > > packages?) > > These are not optional packages, but since recently they are "features" > > https://trac.sagemath.org/ticket/25305
If you point me in the right direction in the code, this is easy to fix: ``` import cygwin path = cygwin.cygpath(path) ``` This will convert a POSIX path within Cygwin to the equivalent Windows path for passing to an external, non-Cygwin program. You can see some existing examples of this in the code, for example, in the Jmol interface (which is still broken, but for other reasons...) -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
