def graph(expr, image_format='pdf', layout='dot'): r'''Graphs `expr` with graphviz and opens resulting image in the default image viewer. :: >>> rtm_syntax = '(3 ((2 (2 1)) 2))' >>> rhythm_tree = rhythmtreetools.RhythmTreeParser()(rtm_syntax)[0] >>> print rhythm_tree.pretty_rtm_format (3 ( (2 ( 2 1)) 2)) :: >>> iotools.graph(rhythm_tree) # doctest: +SKIP Returns none. ''' from abjad import abjad_configuration from abjad.tools import iotools assert image_format in ('pdf', 'png') layouts =('circo', 'dot', 'fdp', 'neato', 'osage', 'sfdp', 'twopi') assert layout in layouts message = 'Cannot find `{}` command-line tool.'.format(layout) message += ' Please download Graphviz from graphviz.org.' assert iotools.which(layout), message if isinstance(expr, str): graphviz_format = expr else: graphviz_format = expr.graphviz_format current_directory = os.path.abspath('.') ABJADOUTPUT = abjad_configuration['abjad_output'] iotools.verify_output_directory(ABJADOUTPUT) dot_path = os.path.join( ABJADOUTPUT, iotools.get_next_output_file_name(file_extension='dot'), ) img_path = os.path.join(ABJADOUTPUT, dot_path.replace('dot', 'pdf')) with open(dot_path, 'w') as f: f.write(graphviz_format) command = '{} -v -T{} {} -o {}' command = command.format(layout, image_format, dot_path, img_path) subprocess.call(command, shell=True) pdf_viewer = abjad_configuration['pdf_viewer'] ABJADOUTPUT = abjad_configuration['abjad_output'] iotools.open_file(img_path, pdf_viewer)
def plot(expr, image_format='png', width=640, height=320): r'''Plots `expr` with gnuplot and opens resulting image in the default image viewer. Returns none. ''' from abjad import abjad_configuration from abjad.tools import iotools assert image_format in ('pdf', 'png') assert isinstance(width, int) and 0 < width assert isinstance(height, int) and 0 < height message = 'Cannot find `gnuplot` command-line tool.' assert iotools.which('gnuplot'), message gnuplot_format = expr.gnuplot_format current_directory = os.path.abspath('.') abjad_output = abjad_configuration['abjad_output'] iotools.verify_output_directory(abjad_output) txt_path = os.path.join( abjad_output, iotools.get_next_output_file_name(file_extension='txt')) img_path = os.path.join(abjad_output, txt_path.replace('txt', image_format)) if image_format == 'png': image_format = 'pngcairo' gnuplot_format = gnuplot_format.format( filename=img_path, image_format=image_format, height=height, width=width ) with open(txt_path, 'w') as f: f.write(gnuplot_format) command = 'gnuplot {}'.format(txt_path) subprocess.call(command, shell=True) pdf_viewer = abjad_configuration['pdf_viewer'] abjad_output = abjad_configuration['abjad_output'] iotools.open_file(img_path, pdf_viewer)
def play(expr): r'''Plays `expr`. :: >>> note = Note("c'4") :: >>> iotools.play(note) # doctest: +SKIP This input creates and opens a one-note MIDI file. Abjad outputs MIDI files of the format ``filename.mid`` under Windows. Abjad outputs MIDI files of the format ``filename.midi`` under other operating systems. Returns none. ''' from abjad import abjad_configuration from abjad.tools import iotools ABJADOUTPUT = abjad_configuration['abjad_output'] iotools.verify_output_directory(ABJADOUTPUT) os.chdir(ABJADOUTPUT) name = iotools.get_next_output_file_name() outfile = open(name, 'w') lilypond_file = iotools.insert_expr_into_lilypond_file(expr) lilypond_file.score_block.append(lilypondfiletools.MIDIBlock()) outfile.write(lilypond_file.lilypond_format) outfile.close() iotools.run_lilypond(name, abjad_configuration['lilypond_path']) if os.name == 'nt': extension = 'mid' else: extension = 'midi' midi_player = abjad_configuration['midi_player'] iotools.open_file('%s.%s' % (name[:-3], extension), midi_player)
def redo(target=-1, lily_time=10): r"""Rerenders the last ``.ly`` file created in Abjad and then shows the resulting PDF. .. container:: example **Example 1.** Redo the last LilyPond file created in Ajbad: :: >>> iotools.redo() # doctest: +SKIP .. container:: example **Examle 2.** Redo the next-to-last LilyPond file created in Abjad: :: >>> iotools.redo(-2) # doctest: +SKIP Returns none. """ from abjad import abjad_configuration from abjad.tools import iotools current_directory = os.path.abspath(".") abjad_output = abjad_configuration["abjad_output"] iotools.verify_output_directory(abjad_output) os.chdir(abjad_output) # TODO: Encapsulate as a single function called cfg._find_target() # find target if isinstance(target, int) and target < 0: last_lilypond = iotools.get_last_output_file_name() if last_lilypond: last_number = last_lilypond.replace(".ly", "") last_number = last_lilypond.replace(".pdf", "") last_number = last_number.replace(".midi", "") last_number = last_number.replace(".mid", "") target_number = int(last_number) + (target + 1) target_str = "%04d" % target_number target_ly = os.path.join(abjad_output, target_str + ".ly") else: print "Target LilyPond input file does not exist." elif isinstance(target, int) and 0 <= target: target_str = "%04d" % target target_ly = os.path.join(abjad_output, target_str + ".ly") elif isinstance(target, str): target_ly = os.path.join(abjad_output, target) else: message = "can not get target LilyPond input from {}.".format(target) raise ValueError(message) # render start_time = time.time() iotools.run_lilypond(target_ly, abjad_configuration["lilypond_path"]) stop_time = time.time() actual_lily_time = int(stop_time - start_time) os.chdir(current_directory) if lily_time <= actual_lily_time: message = "LilyPond processing time equal to {} seconds ..." print message.format(actual_lily_time) # TODO: Encapsulate as cfg._open_pdf() # open pdf pdf_viewer = abjad_configuration["pdf_viewer"] abjad_output = abjad_configuration["abjad_output"] name = target_ly iotools.open_file("%s.pdf" % name[:-3], pdf_viewer)