def make_movie(c0, c1, theta0, movie_name, m=2, dims=(-1.5, 1.5, -1.5, 1.5), numframes=100): """ Create linear interpolation movie. """ xmin, xmax, ymin, ymax = dims mp = MatchingProblem(c0, c1, m) g, res, n = mp.match(theta0) interp = LiegroupInterpolationMethod(c0, c1, g) # Generate frames for n in xrange(0, numframes): epsilon = float(n)/(numframes-1) c0_transformed = interp.transform(epsilon) im = LineImage(xmin=xmin, xmax=xmax, ymin=ymin, ymax=ymax); im.plot_curve(c0_transformed) im.save(TMP_FOLDER + 'still%04d.png' % n) im.close() # Compile movie cwd = os.getcwd() os.chdir(TMP_FOLDER) os.system('/Users/Joris/localsoft/bin/ffmpeg -i still%%04d.png %s' % movie_name) shutil.move(movie_name, cwd) os.chdir(cwd)