Today I setuped a ubuntu virtual machine, installed matplotlib 1.3.1
(builded and installed from source), installed ImageMagick via 'apt-get',
and tried again that sample.
It worked.
So Does the imagemagick writer not work on Windows, or am I missing
something in my Win7 ?
Can anybody help ?
Thank you.
2013/10/13 Aiyong WANG <gepcel...@gmail.com>
> Hi.
> I'm using windows 7, with python(x,y) 2.7.5.0 installed. I then installed
> matplotlib 1.3.1 and imagemagick.
> Something goes wrong when try to save animation as a gif file.
> I used a base_animation.py within ipython notebook as followed:
>
> code:
>
> -------------------------------------------------------------------------------------
> import numpy as np
> from matplotlib import pyplot as plt
> from matplotlib import animation
>
> # First set up the figure, the axis, and the plot element we want to
> animate
> fig = plt.figure()
> ax = fig.add_subplot(111, xlim=(0, 2), ylim=(-2, 2))
> line, = ax.plot([], [], lw=2)
>
> # initialization function: plot the background of each frame
> def init():
> line.set_data([], [])
> return line,
>
> # animation function. This is called sequentially
> def animate(i):
> x = np.linspace(0, 2, 1000)
> y = np.sin(2 * np.pi * (x - 0.01 * i))
> line.set_data(x, y)
> return line,
>
> # call the animator. blit=True means only re-draw the parts that have
> changed.
> anim = animation.FuncAnimation(fig, animate, init_func=init,
> frames=100, interval=20, blit=True)
>
> # this is how you save your animation to file:
> #anim.save('animation.gif', writer='imagemagick_file', fps=30)
> anim.save('animation.gif', writer='imagemagick', fps=30)
>
> plt.show()
>
> ----------------------------------------------------------------------------------
>
>
>
> And I got an error message like this:
>
> ---------------------------------------------------------------------------RuntimeError
> Traceback (most recent call
> last)<ipython-input-2-7b2f7b9edcb4> in <module>() 26 # this is how you
> save your animation to file: 27 #anim.save('animation.gif',
> writer='imagemagick_file', fps=30)---> 28 anim.save('animation.gif',
> writer='imagemagick', fps=30) 29 30 plt.show()
> D:\Python27\lib\site-packages\matplotlib\animation.pyc in save(self,
> filename, writer, fps, dpi, codec, bitrate, extra_args, metadata, extra_anim,
> savefig_kwargs) 716 #TODO: Need to see if turning off
> blit is really necessary 717 anim._draw_next_frame(d,
> blit=False)--> 718 writer.grab_frame(**savefig_kwargs) 719
> 720 # Reconnect signal for first draw if necessary
> D:\Python27\lib\site-packages\matplotlib\animation.pyc in grab_frame(self,
> **savefig_kwargs) 202 # frame format and dpi. 203
> self.fig.savefig(self._frame_sink(), format=self.frame_format,--> 204
> dpi=self.dpi, **savefig_kwargs) 205 except
> RuntimeError: 206 out, err = self._proc.communicate()
> D:\Python27\lib\site-packages\matplotlib\figure.pyc in savefig(self, *args,
> **kwargs) 1419 self.set_frameon(frameon) 1420 -> 1421
> self.canvas.print_figure(*args, **kwargs) 1422 1423 if frameon:
> D:\Python27\lib\site-packages\matplotlib\backend_bases.pyc in
> print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format,
> **kwargs) 2218 orientation=orientation, 2219
> bbox_inches_restore=_bbox_inches_restore,-> 2220 **kwargs)
> 2221 finally: 2222 if bbox_inches and restore_bbox:
> D:\Python27\lib\site-packages\matplotlib\backends\backend_agg.pyc in
> print_raw(self, filename_or_obj, *args, **kwargs) 495 close =
> False 496 try:--> 497
> renderer._renderer.write_rgba(filename_or_obj) 498 finally: 499
> if close:
> RuntimeError: Error writing to file
>
> --
>
> Can anybody help?
> ------------------------------------------------------------------
> WANG Aiyong
>
--
------------------------------------------------------------------
WANG Aiyong
------------------------------------------------------------------------------
October Webinars: Code for Performance
Free Intel webinars can help you accelerate application performance.
Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from
the latest Intel processors and coprocessors. See abstracts and register >
http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
