def to_png(data, path=None, conf=None):
'''
Generate a svg image(s). This function can generate multiple images.
@param data: input data
@param path: path were to save files;
if the value is None no file is saved, overwriting is forbidden (raise exception)
@param conf: configuration to substitute the default one
@return: a list of tuples, each tuple contains two fields: a name and an image in svg format
'''
views_to_render = [data]
views_to_render.extend(find_non_terminals(data))
result = []
for view in views_to_render:
result.append((view["name"], create_diagram(view, Configuration(conf))))
if path != None:
for image in result:
# replace spaces to underscores
fstr = image[0].replace(" ", "_")
file_name = os.path.join(path, fstr + ".svg")
#if os.path.exists(file_name):
# raise Exception, "File already exists!"
with open(file_name, 'w') as f:
f.write(image[1].encode('utf-8'))
#command = 'python CairoSVG-0.3.1//cairosvg.py file_name -f png -o ' + os.path.join(path, image[0] + ".png"
#os.system(command);
cairosvg.main(file_name, 'png', 300, os.path.join(path, fstr + ".png"))
return result
def test_main(args, exit_=False, input_=None):
"""Test main called with given ``args``.
If ``exit_`` is ``True``, check that ``SystemExit`` is raised. We then
assume that the program output is an unicode string.
If ``input_`` is given, use this stream as input stream.
"""
sys.argv = ['cairosvg.py'] + args
old_stdin, old_stdout = sys.stdin, sys.stdout
output_buffer = io.BytesIO()
if sys.version_info[0] >= 3:
sys.stdout = io.TextIOWrapper(output_buffer)
else:
sys.stdout = output_buffer
if input_:
kwargs = {'stdin': open(input_, 'rb')}
sys.stdin = open(input_, 'rb')
else:
kwargs = {}
if exit_:
try:
main()
except SystemExit:
pass
else:
raise Exception('CairoSVG did not exit')
else:
main()
sys.stdout.flush()
output = output_buffer.getvalue()
sys.stdin, sys.stdout = old_stdin, old_stdout
eq_(output, run(*args, **kwargs))
return output
def test_main(args, exit_=False, input_=None):
"""Test main called with given ``args``.
If ``exit_`` is ``True``, check that ``SystemExit`` is raised. We then
assume that the program output is an unicode string.
If ``input_`` is given, use this stream as input stream.
"""
sys.argv = ['cairosvg.py'] + args
old_stdin, old_stdout = sys.stdin, sys.stdout
output_buffer = io.BytesIO()
if sys.version_info[0] >= 3:
sys.stdout = io.TextIOWrapper(output_buffer)
else:
sys.stdout = output_buffer
if input_:
kwargs = {'stdin': open(input_, 'rb')}
sys.stdin = open(input_, 'rb')
else:
kwargs = {}
if exit_:
try:
main()
except SystemExit:
pass
else:
raise Exception('CairoSVG did not exit')
else:
main()
sys.stdout.flush()
output = output_buffer.getvalue()
sys.stdin, sys.stdout = old_stdin, old_stdout
eq_(output, run(*args, **kwargs))
return output
#!/usr/bin/env python # # This file is part of CairoSVG # Copyright © 2010-2015 Kozea # # This library is free software: you can redistribute it and/or modify it under # the terms of the GNU Lesser General Public License as published by the Free # Software Foundation, either version 3 of the License, or (at your option) any # later version. # # This library is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more # details. # # You should have received a copy of the GNU Lesser General Public License # along with CairoSVG. If not, see <http://www.gnu.org/licenses/>. """ CairoSVG entry point. """ import cairosvg cairosvg.main()
#http://cairosvg.org/user_documentation/ import cairosvg cairosvg.main()
def svg2png(svgsrc,pngfile):
cairosvg.main()