Python cbook.open_file_cm方法代码示例

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import open_file_cm [as 别名]
def print_svg(self, filename, *args, **kwargs):
        with cbook.open_file_cm(filename, "w", encoding="utf-8") as fh:

            filename = getattr(fh, 'name', '')
            if not isinstance(filename, str):
                filename = ''

            if cbook.file_requires_unicode(fh):
                detach = False
            else:
                fh = io.TextIOWrapper(fh, 'utf-8')
                detach = True

            result = self._print_svg(filename, fh, **kwargs)

            # Detach underlying stream from wrapper so that it remains open in
            # the caller.
            if detach:
                fh.detach()

        return result 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import open_file_cm [as 别名]
def print_png(self, filename_or_obj, *args, **kwargs):
        FigureCanvasAgg.draw(self)
        renderer = self.get_renderer()
        original_dpi = renderer.dpi
        renderer.dpi = self.figure.dpi

        version_str = 'matplotlib version ' + __version__ + \
            ', http://matplotlib.org/'
        metadata = OrderedDict({'Software': version_str})
        user_metadata = kwargs.pop("metadata", None)
        if user_metadata is not None:
            metadata.update(user_metadata)

        try:
            with cbook.open_file_cm(filename_or_obj, "wb") as fh:
                _png.write_png(renderer._renderer, fh,
                               self.figure.dpi, metadata=metadata)
        finally:
            renderer.dpi = original_dpi 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import open_file_cm [as 别名]
def print_raw(self, filename_or_obj, *args, **kwargs):
        FigureCanvasAgg.draw(self)
        renderer = self.get_renderer()
        with cbook._setattr_cm(renderer, dpi=self.figure.dpi), \
                cbook.open_file_cm(filename_or_obj, "wb") as fh:
            fh.write(renderer._renderer.buffer_rgba()) 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import open_file_cm [as 别名]
def print_svgz(self, filename, *args, **kwargs):
        with cbook.open_file_cm(filename, "wb") as fh, \
                gzip.GzipFile(mode='w', fileobj=fh) as gzipwriter:
            return self.print_svg(gzipwriter) 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import open_file_cm [as 别名]
def print_pgf(self, fname_or_fh, *args, **kwargs):
        """
        Output pgf commands for drawing the figure so it can be included and
        rendered in latex documents.
        """
        if kwargs.get("dryrun", False):
            self._print_pgf_to_fh(None, *args, **kwargs)
            return
        with cbook.open_file_cm(fname_or_fh, "w", encoding="utf-8") as file:
            if not cbook.file_requires_unicode(file):
                file = codecs.getwriter("utf-8")(file)
            self._print_pgf_to_fh(file, *args, **kwargs) 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import open_file_cm [as 别名]
def print_pdf(self, fname_or_fh, *args, **kwargs):
        """Use LaTeX to compile a Pgf generated figure to PDF."""
        if kwargs.get("dryrun", False):
            self._print_pgf_to_fh(None, *args, **kwargs)
            return
        with cbook.open_file_cm(fname_or_fh, "wb") as file:
            self._print_pdf_to_fh(file, *args, **kwargs) 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import open_file_cm [as 别名]
def print_svg(self, filename, *args, **kwargs):
        with cbook.open_file_cm(filename, "w", encoding="utf-8") as fh:

            filename = getattr(fh, 'name', '')
            if not isinstance(filename, six.string_types):
                filename = ''

            if cbook.file_requires_unicode(fh):
                detach = False
            else:
                if six.PY3:
                    fh = io.TextIOWrapper(fh, 'utf-8')
                else:
                    fh = codecs.getwriter('utf-8')(fh)
                detach = True

            result = self._print_svg(filename, fh, **kwargs)

            # Detach underlying stream from wrapper so that it remains open in
            # the caller.
            if detach:
                if six.PY3:
                    fh.detach()
                else:
                    fh.reset()
                    fh.stream = io.BytesIO()

        return result 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import open_file_cm [as 别名]
def print_png(self, filename_or_obj, *args, **kwargs):
        """
        Write the figure to a PNG file.

        Parameters
        ----------
        filename_or_obj : str or PathLike or file-like object
            The file to write to.

        metadata : dict, optional
            Metadata in the PNG file as key-value pairs of bytes or latin-1
            encodable strings.
            According to the PNG specification, keys must be shorter than 79
            chars.

            The `PNG specification`_ defines some common keywords that may be
            used as appropriate:

            - Title: Short (one line) title or caption for image.
            - Author: Name of image's creator.
            - Description: Description of image (possibly long).
            - Copyright: Copyright notice.
            - Creation Time: Time of original image creation
              (usually RFC 1123 format).
            - Software: Software used to create the image.
            - Disclaimer: Legal disclaimer.
            - Warning: Warning of nature of content.
            - Source: Device used to create the image.
            - Comment: Miscellaneous comment;
              conversion from other image format.

            Other keywords may be invented for other purposes.

            If 'Software' is not given, an autogenerated value for matplotlib
            will be used.

            For more details see the `PNG specification`_.

            .. _PNG specification: \
                https://www.w3.org/TR/2003/REC-PNG-20031110/#11keywords

        """
        FigureCanvasAgg.draw(self)
        renderer = self.get_renderer()

        version_str = (
            'matplotlib version ' + __version__ + ', http://matplotlib.org/')
        metadata = OrderedDict({'Software': version_str})
        user_metadata = kwargs.pop("metadata", None)
        if user_metadata is not None:
            metadata.update(user_metadata)

        with cbook._setattr_cm(renderer, dpi=self.figure.dpi), \
                cbook.open_file_cm(filename_or_obj, "wb") as fh:
            _png.write_png(renderer._renderer, fh,
                            self.figure.dpi, metadata=metadata)