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Sohel
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r"""
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A role and directive to display mathtext in Sphinx
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==================================================
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.. warning::
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In most cases, you will likely want to use one of `Sphinx's builtin Math
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extensions
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<https://www.sphinx-doc.org/en/master/usage/extensions/math.html>`__
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instead of this one.
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Mathtext may be included in two ways:
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1. Inline, using the role::
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This text uses inline math: :mathmpl:`\alpha > \beta`.
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which produces:
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This text uses inline math: :mathmpl:`\alpha > \beta`.
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2. Standalone, using the directive::
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Here is some standalone math:
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.. mathmpl::
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\alpha > \beta
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which produces:
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Here is some standalone math:
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.. mathmpl::
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\alpha > \beta
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Options
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-------
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The ``mathmpl`` role and directive both support the following options:
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fontset : str, default: 'cm'
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The font set to use when displaying math. See :rc:`mathtext.fontset`.
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fontsize : float
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The font size, in points. Defaults to the value from the extension
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configuration option defined below.
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Configuration options
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---------------------
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The mathtext extension has the following configuration options:
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mathmpl_fontsize : float, default: 10.0
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Default font size, in points.
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mathmpl_srcset : list of str, default: []
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Additional image sizes to generate when embedding in HTML, to support
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`responsive resolution images
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<https://developer.mozilla.org/en-US/docs/Learn/HTML/Multimedia_and_embedding/Responsive_images>`__.
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The list should contain additional x-descriptors (``'1.5x'``, ``'2x'``,
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etc.) to generate (1x is the default and always included.)
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"""
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import hashlib
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from pathlib import Path
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from docutils import nodes
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from docutils.parsers.rst import Directive, directives
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import sphinx
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from sphinx.errors import ConfigError, ExtensionError
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import matplotlib as mpl
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from matplotlib import _api, mathtext
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from matplotlib.rcsetup import validate_float_or_None
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# Define LaTeX math node:
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class latex_math(nodes.General, nodes.Element):
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pass
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def fontset_choice(arg):
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return directives.choice(arg, mathtext.MathTextParser._font_type_mapping)
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def math_role(role, rawtext, text, lineno, inliner,
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options={}, content=[]):
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i = rawtext.find('`')
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latex = rawtext[i+1:-1]
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node = latex_math(rawtext)
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node['latex'] = latex
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node['fontset'] = options.get('fontset', 'cm')
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node['fontsize'] = options.get('fontsize',
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setup.app.config.mathmpl_fontsize)
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return [node], []
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math_role.options = {'fontset': fontset_choice,
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'fontsize': validate_float_or_None}
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class MathDirective(Directive):
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"""
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The ``.. mathmpl::`` directive, as documented in the module's docstring.
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"""
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has_content = True
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required_arguments = 0
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optional_arguments = 0
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final_argument_whitespace = False
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option_spec = {'fontset': fontset_choice,
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'fontsize': validate_float_or_None}
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def run(self):
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latex = ''.join(self.content)
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node = latex_math(self.block_text)
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node['latex'] = latex
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node['fontset'] = self.options.get('fontset', 'cm')
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node['fontsize'] = self.options.get('fontsize',
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setup.app.config.mathmpl_fontsize)
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return [node]
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# This uses mathtext to render the expression
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def latex2png(latex, filename, fontset='cm', fontsize=10, dpi=100):
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with mpl.rc_context({'mathtext.fontset': fontset, 'font.size': fontsize}):
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try:
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depth = mathtext.math_to_image(
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f"${latex}$", filename, dpi=dpi, format="png")
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except Exception:
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_api.warn_external(f"Could not render math expression {latex}")
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depth = 0
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return depth
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# LaTeX to HTML translation stuff:
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def latex2html(node, source):
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inline = isinstance(node.parent, nodes.TextElement)
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latex = node['latex']
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fontset = node['fontset']
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fontsize = node['fontsize']
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name = 'math-{}'.format(
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hashlib.md5(f'{latex}{fontset}{fontsize}'.encode()).hexdigest()[-10:])
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destdir = Path(setup.app.builder.outdir, '_images', 'mathmpl')
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destdir.mkdir(parents=True, exist_ok=True)
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dest = destdir / f'{name}.png'
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depth = latex2png(latex, dest, fontset, fontsize=fontsize)
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srcset = []
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for size in setup.app.config.mathmpl_srcset:
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filename = f'{name}-{size.replace(".", "_")}.png'
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latex2png(latex, destdir / filename, fontset, fontsize=fontsize,
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dpi=100 * float(size[:-1]))
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srcset.append(
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f'{setup.app.builder.imgpath}/mathmpl/{filename} {size}')
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if srcset:
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srcset = (f'srcset="{setup.app.builder.imgpath}/mathmpl/{name}.png, ' +
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', '.join(srcset) + '" ')
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if inline:
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cls = ''
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else:
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cls = 'class="center" '
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if inline and depth != 0:
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style = 'style="position: relative; bottom: -%dpx"' % (depth + 1)
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else:
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style = ''
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return (f'<img src="{setup.app.builder.imgpath}/mathmpl/{name}.png"'
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f' {srcset}{cls}{style}/>')
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def _config_inited(app, config):
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# Check for srcset hidpi images
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for i, size in enumerate(app.config.mathmpl_srcset):
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if size[-1] == 'x': # "2x" = "2.0"
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try:
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float(size[:-1])
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except ValueError:
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raise ConfigError(
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f'Invalid value for mathmpl_srcset parameter: {size!r}. '
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'Must be a list of strings with the multiplicative '
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'factor followed by an "x". e.g. ["2.0x", "1.5x"]')
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else:
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raise ConfigError(
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f'Invalid value for mathmpl_srcset parameter: {size!r}. '
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'Must be a list of strings with the multiplicative '
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'factor followed by an "x". e.g. ["2.0x", "1.5x"]')
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def setup(app):
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setup.app = app
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app.add_config_value('mathmpl_fontsize', 10.0, True)
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app.add_config_value('mathmpl_srcset', [], True)
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try:
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app.connect('config-inited', _config_inited) # Sphinx 1.8+
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except ExtensionError:
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app.connect('env-updated', lambda app, env: _config_inited(app, None))
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# Add visit/depart methods to HTML-Translator:
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def visit_latex_math_html(self, node):
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source = self.document.attributes['source']
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self.body.append(latex2html(node, source))
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def depart_latex_math_html(self, node):
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pass
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# Add visit/depart methods to LaTeX-Translator:
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def visit_latex_math_latex(self, node):
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inline = isinstance(node.parent, nodes.TextElement)
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if inline:
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self.body.append('$%s$' % node['latex'])
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else:
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self.body.extend(['\\begin{equation}',
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node['latex'],
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'\\end{equation}'])
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def depart_latex_math_latex(self, node):
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pass
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app.add_node(latex_math,
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html=(visit_latex_math_html, depart_latex_math_html),
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latex=(visit_latex_math_latex, depart_latex_math_latex))
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app.add_role('mathmpl', math_role)
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app.add_directive('mathmpl', MathDirective)
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if sphinx.version_info < (1, 8):
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app.add_role('math', math_role)
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app.add_directive('math', MathDirective)
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metadata = {'parallel_read_safe': True, 'parallel_write_safe': True}
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return metadata
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@@ -0,0 +1,826 @@
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"""
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A directive for including a Matplotlib plot in a Sphinx document
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================================================================
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This is a Sphinx extension providing a reStructuredText directive
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``.. plot::`` for including a plot in a Sphinx document.
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In HTML output, ``.. plot::`` will include a .png file with a link
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to a high-res .png and .pdf. In LaTeX output, it will include a .pdf.
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The plot content may be defined in one of three ways:
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1. **A path to a source file** as the argument to the directive::
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.. plot:: path/to/plot.py
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When a path to a source file is given, the content of the
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directive may optionally contain a caption for the plot::
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.. plot:: path/to/plot.py
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The plot caption.
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Additionally, one may specify the name of a function to call (with
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no arguments) immediately after importing the module::
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.. plot:: path/to/plot.py plot_function1
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2. Included as **inline content** to the directive::
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.. plot::
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import matplotlib.pyplot as plt
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plt.plot([1, 2, 3], [4, 5, 6])
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plt.title("A plotting exammple")
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3. Using **doctest** syntax::
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.. plot::
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A plotting example:
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>>> import matplotlib.pyplot as plt
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>>> plt.plot([1, 2, 3], [4, 5, 6])
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Options
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-------
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The ``.. plot::`` directive supports the following options:
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``:format:`` : {'python', 'doctest'}
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The format of the input. If unset, the format is auto-detected.
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``:include-source:`` : bool
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Whether to display the source code. The default can be changed using
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the ``plot_include_source`` variable in :file:`conf.py` (which itself
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defaults to False).
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``:show-source-link:`` : bool
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Whether to show a link to the source in HTML. The default can be
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changed using the ``plot_html_show_source_link`` variable in
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:file:`conf.py` (which itself defaults to True).
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``:context:`` : bool or str
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If provided, the code will be run in the context of all previous plot
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directives for which the ``:context:`` option was specified. This only
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applies to inline code plot directives, not those run from files. If
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the ``:context: reset`` option is specified, the context is reset
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for this and future plots, and previous figures are closed prior to
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running the code. ``:context: close-figs`` keeps the context but closes
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previous figures before running the code.
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``:nofigs:`` : bool
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If specified, the code block will be run, but no figures will be
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inserted. This is usually useful with the ``:context:`` option.
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``:caption:`` : str
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If specified, the option's argument will be used as a caption for the
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figure. This overwrites the caption given in the content, when the plot
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is generated from a file.
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Additionally, this directive supports all the options of the `image directive
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<https://docutils.sourceforge.io/docs/ref/rst/directives.html#image>`_,
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except for ``:target:`` (since plot will add its own target). These include
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``:alt:``, ``:height:``, ``:width:``, ``:scale:``, ``:align:`` and ``:class:``.
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Configuration options
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---------------------
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The plot directive has the following configuration options:
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plot_include_source
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Default value for the include-source option (default: False).
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plot_html_show_source_link
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Whether to show a link to the source in HTML (default: True).
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plot_pre_code
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Code that should be executed before each plot. If None (the default),
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it will default to a string containing::
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import numpy as np
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from matplotlib import pyplot as plt
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plot_basedir
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Base directory, to which ``plot::`` file names are relative to.
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If None or empty (the default), file names are relative to the
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directory where the file containing the directive is.
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plot_formats
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File formats to generate (default: ['png', 'hires.png', 'pdf']).
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List of tuples or strings::
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[(suffix, dpi), suffix, ...]
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that determine the file format and the DPI. For entries whose
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DPI was omitted, sensible defaults are chosen. When passing from
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||||
the command line through sphinx_build the list should be passed as
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suffix:dpi,suffix:dpi, ...
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plot_html_show_formats
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Whether to show links to the files in HTML (default: True).
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plot_rcparams
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A dictionary containing any non-standard rcParams that should
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be applied before each plot (default: {}).
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plot_apply_rcparams
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By default, rcParams are applied when ``:context:`` option is not used
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in a plot directive. If set, this configuration option overrides this
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behavior and applies rcParams before each plot.
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plot_working_directory
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By default, the working directory will be changed to the directory of
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the example, so the code can get at its data files, if any. Also its
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path will be added to `sys.path` so it can import any helper modules
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||||
sitting beside it. This configuration option can be used to specify
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||||
a central directory (also added to `sys.path`) where data files and
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helper modules for all code are located.
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plot_template
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Provide a customized template for preparing restructured text.
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"""
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import contextlib
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import doctest
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from io import StringIO
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||||
import itertools
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||||
import os
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||||
from os.path import relpath
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||||
from pathlib import Path
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||||
import re
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||||
import shutil
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||||
import sys
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||||
import textwrap
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||||
import traceback
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||||
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||||
from docutils.parsers.rst import directives, Directive
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||||
from docutils.parsers.rst.directives.images import Image
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||||
import jinja2 # Sphinx dependency.
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||||
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||||
import matplotlib
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||||
from matplotlib.backend_bases import FigureManagerBase
|
||||
import matplotlib.pyplot as plt
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from matplotlib import _pylab_helpers, cbook
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||||
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||||
matplotlib.use("agg")
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||||
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||||
__version__ = 2
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||||
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||||
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||||
# -----------------------------------------------------------------------------
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||||
# Registration hook
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||||
# -----------------------------------------------------------------------------
|
||||
|
||||
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||||
def _option_boolean(arg):
|
||||
if not arg or not arg.strip():
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||||
# no argument given, assume used as a flag
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||||
return True
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||||
elif arg.strip().lower() in ('no', '0', 'false'):
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||||
return False
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||||
elif arg.strip().lower() in ('yes', '1', 'true'):
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||||
return True
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||||
else:
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||||
raise ValueError(f'{arg!r} unknown boolean')
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||||
|
||||
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||||
def _option_context(arg):
|
||||
if arg in [None, 'reset', 'close-figs']:
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||||
return arg
|
||||
raise ValueError("Argument should be None or 'reset' or 'close-figs'")
|
||||
|
||||
|
||||
def _option_format(arg):
|
||||
return directives.choice(arg, ('python', 'doctest'))
|
||||
|
||||
|
||||
def mark_plot_labels(app, document):
|
||||
"""
|
||||
To make plots referenceable, we need to move the reference from the
|
||||
"htmlonly" (or "latexonly") node to the actual figure node itself.
|
||||
"""
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||||
for name, explicit in document.nametypes.items():
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||||
if not explicit:
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||||
continue
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||||
labelid = document.nameids[name]
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||||
if labelid is None:
|
||||
continue
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||||
node = document.ids[labelid]
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||||
if node.tagname in ('html_only', 'latex_only'):
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||||
for n in node:
|
||||
if n.tagname == 'figure':
|
||||
sectname = name
|
||||
for c in n:
|
||||
if c.tagname == 'caption':
|
||||
sectname = c.astext()
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||||
break
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||||
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||||
node['ids'].remove(labelid)
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||||
node['names'].remove(name)
|
||||
n['ids'].append(labelid)
|
||||
n['names'].append(name)
|
||||
document.settings.env.labels[name] = \
|
||||
document.settings.env.docname, labelid, sectname
|
||||
break
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||||
|
||||
|
||||
class PlotDirective(Directive):
|
||||
"""The ``.. plot::`` directive, as documented in the module's docstring."""
|
||||
|
||||
has_content = True
|
||||
required_arguments = 0
|
||||
optional_arguments = 2
|
||||
final_argument_whitespace = False
|
||||
option_spec = {
|
||||
'alt': directives.unchanged,
|
||||
'height': directives.length_or_unitless,
|
||||
'width': directives.length_or_percentage_or_unitless,
|
||||
'scale': directives.nonnegative_int,
|
||||
'align': Image.align,
|
||||
'class': directives.class_option,
|
||||
'include-source': _option_boolean,
|
||||
'show-source-link': _option_boolean,
|
||||
'format': _option_format,
|
||||
'context': _option_context,
|
||||
'nofigs': directives.flag,
|
||||
'caption': directives.unchanged,
|
||||
}
|
||||
|
||||
def run(self):
|
||||
"""Run the plot directive."""
|
||||
try:
|
||||
return run(self.arguments, self.content, self.options,
|
||||
self.state_machine, self.state, self.lineno)
|
||||
except Exception as e:
|
||||
raise self.error(str(e))
|
||||
|
||||
|
||||
def _copy_css_file(app, exc):
|
||||
if exc is None and app.builder.format == 'html':
|
||||
src = cbook._get_data_path('plot_directive/plot_directive.css')
|
||||
dst = app.outdir / Path('_static')
|
||||
dst.mkdir(exist_ok=True)
|
||||
# Use copyfile because we do not want to copy src's permissions.
|
||||
shutil.copyfile(src, dst / Path('plot_directive.css'))
|
||||
|
||||
|
||||
def setup(app):
|
||||
setup.app = app
|
||||
setup.config = app.config
|
||||
setup.confdir = app.confdir
|
||||
app.add_directive('plot', PlotDirective)
|
||||
app.add_config_value('plot_pre_code', None, True)
|
||||
app.add_config_value('plot_include_source', False, True)
|
||||
app.add_config_value('plot_html_show_source_link', True, True)
|
||||
app.add_config_value('plot_formats', ['png', 'hires.png', 'pdf'], True)
|
||||
app.add_config_value('plot_basedir', None, True)
|
||||
app.add_config_value('plot_html_show_formats', True, True)
|
||||
app.add_config_value('plot_rcparams', {}, True)
|
||||
app.add_config_value('plot_apply_rcparams', False, True)
|
||||
app.add_config_value('plot_working_directory', None, True)
|
||||
app.add_config_value('plot_template', None, True)
|
||||
app.connect('doctree-read', mark_plot_labels)
|
||||
app.add_css_file('plot_directive.css')
|
||||
app.connect('build-finished', _copy_css_file)
|
||||
metadata = {'parallel_read_safe': True, 'parallel_write_safe': True,
|
||||
'version': matplotlib.__version__}
|
||||
return metadata
|
||||
|
||||
|
||||
# -----------------------------------------------------------------------------
|
||||
# Doctest handling
|
||||
# -----------------------------------------------------------------------------
|
||||
|
||||
|
||||
def contains_doctest(text):
|
||||
try:
|
||||
# check if it's valid Python as-is
|
||||
compile(text, '<string>', 'exec')
|
||||
return False
|
||||
except SyntaxError:
|
||||
pass
|
||||
r = re.compile(r'^\s*>>>', re.M)
|
||||
m = r.search(text)
|
||||
return bool(m)
|
||||
|
||||
|
||||
def _split_code_at_show(text, function_name):
|
||||
"""Split code at plt.show()."""
|
||||
|
||||
is_doctest = contains_doctest(text)
|
||||
if function_name is None:
|
||||
parts = []
|
||||
part = []
|
||||
for line in text.split("\n"):
|
||||
if ((not is_doctest and line.startswith('plt.show(')) or
|
||||
(is_doctest and line.strip() == '>>> plt.show()')):
|
||||
part.append(line)
|
||||
parts.append("\n".join(part))
|
||||
part = []
|
||||
else:
|
||||
part.append(line)
|
||||
if "\n".join(part).strip():
|
||||
parts.append("\n".join(part))
|
||||
else:
|
||||
parts = [text]
|
||||
return is_doctest, parts
|
||||
|
||||
|
||||
# -----------------------------------------------------------------------------
|
||||
# Template
|
||||
# -----------------------------------------------------------------------------
|
||||
|
||||
TEMPLATE = """
|
||||
{{ source_code }}
|
||||
|
||||
.. only:: html
|
||||
|
||||
{% if src_name or (html_show_formats and not multi_image) %}
|
||||
(
|
||||
{%- if src_name -%}
|
||||
:download:`Source code <{{ build_dir }}/{{ src_name }}>`
|
||||
{%- endif -%}
|
||||
{%- if html_show_formats and not multi_image -%}
|
||||
{%- for img in images -%}
|
||||
{%- for fmt in img.formats -%}
|
||||
{%- if src_name or not loop.first -%}, {% endif -%}
|
||||
:download:`{{ fmt }} <{{ build_dir }}/{{ img.basename }}.{{ fmt }}>`
|
||||
{%- endfor -%}
|
||||
{%- endfor -%}
|
||||
{%- endif -%}
|
||||
)
|
||||
{% endif %}
|
||||
|
||||
{% for img in images %}
|
||||
.. figure:: {{ build_dir }}/{{ img.basename }}.{{ default_fmt }}
|
||||
{% for option in options -%}
|
||||
{{ option }}
|
||||
{% endfor %}
|
||||
|
||||
{% if html_show_formats and multi_image -%}
|
||||
(
|
||||
{%- for fmt in img.formats -%}
|
||||
{%- if not loop.first -%}, {% endif -%}
|
||||
:download:`{{ fmt }} <{{ build_dir }}/{{ img.basename }}.{{ fmt }}>`
|
||||
{%- endfor -%}
|
||||
)
|
||||
{%- endif -%}
|
||||
|
||||
{{ caption }} {# appropriate leading whitespace added beforehand #}
|
||||
{% endfor %}
|
||||
|
||||
.. only:: not html
|
||||
|
||||
{% for img in images %}
|
||||
.. figure:: {{ build_dir }}/{{ img.basename }}.*
|
||||
{% for option in options -%}
|
||||
{{ option }}
|
||||
{% endfor -%}
|
||||
|
||||
{{ caption }} {# appropriate leading whitespace added beforehand #}
|
||||
{% endfor %}
|
||||
|
||||
"""
|
||||
|
||||
exception_template = """
|
||||
.. only:: html
|
||||
|
||||
[`source code <%(linkdir)s/%(basename)s.py>`__]
|
||||
|
||||
Exception occurred rendering plot.
|
||||
|
||||
"""
|
||||
|
||||
# the context of the plot for all directives specified with the
|
||||
# :context: option
|
||||
plot_context = dict()
|
||||
|
||||
|
||||
class ImageFile:
|
||||
def __init__(self, basename, dirname):
|
||||
self.basename = basename
|
||||
self.dirname = dirname
|
||||
self.formats = []
|
||||
|
||||
def filename(self, format):
|
||||
return os.path.join(self.dirname, "%s.%s" % (self.basename, format))
|
||||
|
||||
def filenames(self):
|
||||
return [self.filename(fmt) for fmt in self.formats]
|
||||
|
||||
|
||||
def out_of_date(original, derived, includes=None):
|
||||
"""
|
||||
Return whether *derived* is out-of-date relative to *original* or any of
|
||||
the RST files included in it using the RST include directive (*includes*).
|
||||
*derived* and *original* are full paths, and *includes* is optionally a
|
||||
list of full paths which may have been included in the *original*.
|
||||
"""
|
||||
if not os.path.exists(derived):
|
||||
return True
|
||||
|
||||
if includes is None:
|
||||
includes = []
|
||||
files_to_check = [original, *includes]
|
||||
|
||||
def out_of_date_one(original, derived_mtime):
|
||||
return (os.path.exists(original) and
|
||||
derived_mtime < os.stat(original).st_mtime)
|
||||
|
||||
derived_mtime = os.stat(derived).st_mtime
|
||||
return any(out_of_date_one(f, derived_mtime) for f in files_to_check)
|
||||
|
||||
|
||||
class PlotError(RuntimeError):
|
||||
pass
|
||||
|
||||
|
||||
def _run_code(code, code_path, ns=None, function_name=None):
|
||||
"""
|
||||
Import a Python module from a path, and run the function given by
|
||||
name, if function_name is not None.
|
||||
"""
|
||||
|
||||
# Change the working directory to the directory of the example, so
|
||||
# it can get at its data files, if any. Add its path to sys.path
|
||||
# so it can import any helper modules sitting beside it.
|
||||
pwd = os.getcwd()
|
||||
if setup.config.plot_working_directory is not None:
|
||||
try:
|
||||
os.chdir(setup.config.plot_working_directory)
|
||||
except OSError as err:
|
||||
raise OSError(f'{err}\n`plot_working_directory` option in '
|
||||
f'Sphinx configuration file must be a valid '
|
||||
f'directory path') from err
|
||||
except TypeError as err:
|
||||
raise TypeError(f'{err}\n`plot_working_directory` option in '
|
||||
f'Sphinx configuration file must be a string or '
|
||||
f'None') from err
|
||||
elif code_path is not None:
|
||||
dirname = os.path.abspath(os.path.dirname(code_path))
|
||||
os.chdir(dirname)
|
||||
|
||||
with cbook._setattr_cm(
|
||||
sys, argv=[code_path], path=[os.getcwd(), *sys.path]), \
|
||||
contextlib.redirect_stdout(StringIO()):
|
||||
try:
|
||||
if ns is None:
|
||||
ns = {}
|
||||
if not ns:
|
||||
if setup.config.plot_pre_code is None:
|
||||
exec('import numpy as np\n'
|
||||
'from matplotlib import pyplot as plt\n', ns)
|
||||
else:
|
||||
exec(str(setup.config.plot_pre_code), ns)
|
||||
if "__main__" in code:
|
||||
ns['__name__'] = '__main__'
|
||||
|
||||
# Patch out non-interactive show() to avoid triggering a warning.
|
||||
with cbook._setattr_cm(FigureManagerBase, show=lambda self: None):
|
||||
exec(code, ns)
|
||||
if function_name is not None:
|
||||
exec(function_name + "()", ns)
|
||||
|
||||
except (Exception, SystemExit) as err:
|
||||
raise PlotError(traceback.format_exc()) from err
|
||||
finally:
|
||||
os.chdir(pwd)
|
||||
return ns
|
||||
|
||||
|
||||
def clear_state(plot_rcparams, close=True):
|
||||
if close:
|
||||
plt.close('all')
|
||||
matplotlib.rc_file_defaults()
|
||||
matplotlib.rcParams.update(plot_rcparams)
|
||||
|
||||
|
||||
def get_plot_formats(config):
|
||||
default_dpi = {'png': 80, 'hires.png': 200, 'pdf': 200}
|
||||
formats = []
|
||||
plot_formats = config.plot_formats
|
||||
for fmt in plot_formats:
|
||||
if isinstance(fmt, str):
|
||||
if ':' in fmt:
|
||||
suffix, dpi = fmt.split(':')
|
||||
formats.append((str(suffix), int(dpi)))
|
||||
else:
|
||||
formats.append((fmt, default_dpi.get(fmt, 80)))
|
||||
elif isinstance(fmt, (tuple, list)) and len(fmt) == 2:
|
||||
formats.append((str(fmt[0]), int(fmt[1])))
|
||||
else:
|
||||
raise PlotError('invalid image format "%r" in plot_formats' % fmt)
|
||||
return formats
|
||||
|
||||
|
||||
def render_figures(code, code_path, output_dir, output_base, context,
|
||||
function_name, config, context_reset=False,
|
||||
close_figs=False,
|
||||
code_includes=None):
|
||||
"""
|
||||
Run a pyplot script and save the images in *output_dir*.
|
||||
|
||||
Save the images under *output_dir* with file names derived from
|
||||
*output_base*
|
||||
"""
|
||||
if function_name is not None:
|
||||
output_base = f'{output_base}_{function_name}'
|
||||
formats = get_plot_formats(config)
|
||||
|
||||
# Try to determine if all images already exist
|
||||
|
||||
is_doctest, code_pieces = _split_code_at_show(code, function_name)
|
||||
|
||||
# Look for single-figure output files first
|
||||
img = ImageFile(output_base, output_dir)
|
||||
for format, dpi in formats:
|
||||
if context or out_of_date(code_path, img.filename(format),
|
||||
includes=code_includes):
|
||||
all_exists = False
|
||||
break
|
||||
img.formats.append(format)
|
||||
else:
|
||||
all_exists = True
|
||||
|
||||
if all_exists:
|
||||
return [(code, [img])]
|
||||
|
||||
# Then look for multi-figure output files
|
||||
results = []
|
||||
for i, code_piece in enumerate(code_pieces):
|
||||
images = []
|
||||
for j in itertools.count():
|
||||
if len(code_pieces) > 1:
|
||||
img = ImageFile('%s_%02d_%02d' % (output_base, i, j),
|
||||
output_dir)
|
||||
else:
|
||||
img = ImageFile('%s_%02d' % (output_base, j), output_dir)
|
||||
for fmt, dpi in formats:
|
||||
if context or out_of_date(code_path, img.filename(fmt),
|
||||
includes=code_includes):
|
||||
all_exists = False
|
||||
break
|
||||
img.formats.append(fmt)
|
||||
|
||||
# assume that if we have one, we have them all
|
||||
if not all_exists:
|
||||
all_exists = (j > 0)
|
||||
break
|
||||
images.append(img)
|
||||
if not all_exists:
|
||||
break
|
||||
results.append((code_piece, images))
|
||||
else:
|
||||
all_exists = True
|
||||
|
||||
if all_exists:
|
||||
return results
|
||||
|
||||
# We didn't find the files, so build them
|
||||
|
||||
results = []
|
||||
ns = plot_context if context else {}
|
||||
|
||||
if context_reset:
|
||||
clear_state(config.plot_rcparams)
|
||||
plot_context.clear()
|
||||
|
||||
close_figs = not context or close_figs
|
||||
|
||||
for i, code_piece in enumerate(code_pieces):
|
||||
|
||||
if not context or config.plot_apply_rcparams:
|
||||
clear_state(config.plot_rcparams, close_figs)
|
||||
elif close_figs:
|
||||
plt.close('all')
|
||||
|
||||
_run_code(doctest.script_from_examples(code_piece) if is_doctest
|
||||
else code_piece,
|
||||
code_path, ns, function_name)
|
||||
|
||||
images = []
|
||||
fig_managers = _pylab_helpers.Gcf.get_all_fig_managers()
|
||||
for j, figman in enumerate(fig_managers):
|
||||
if len(fig_managers) == 1 and len(code_pieces) == 1:
|
||||
img = ImageFile(output_base, output_dir)
|
||||
elif len(code_pieces) == 1:
|
||||
img = ImageFile("%s_%02d" % (output_base, j), output_dir)
|
||||
else:
|
||||
img = ImageFile("%s_%02d_%02d" % (output_base, i, j),
|
||||
output_dir)
|
||||
images.append(img)
|
||||
for fmt, dpi in formats:
|
||||
try:
|
||||
figman.canvas.figure.savefig(img.filename(fmt), dpi=dpi)
|
||||
except Exception as err:
|
||||
raise PlotError(traceback.format_exc()) from err
|
||||
img.formats.append(fmt)
|
||||
|
||||
results.append((code_piece, images))
|
||||
|
||||
if not context or config.plot_apply_rcparams:
|
||||
clear_state(config.plot_rcparams, close=not context)
|
||||
|
||||
return results
|
||||
|
||||
|
||||
def run(arguments, content, options, state_machine, state, lineno):
|
||||
document = state_machine.document
|
||||
config = document.settings.env.config
|
||||
nofigs = 'nofigs' in options
|
||||
|
||||
formats = get_plot_formats(config)
|
||||
default_fmt = formats[0][0]
|
||||
|
||||
options.setdefault('include-source', config.plot_include_source)
|
||||
options.setdefault('show-source-link', config.plot_html_show_source_link)
|
||||
if 'class' in options:
|
||||
# classes are parsed into a list of string, and output by simply
|
||||
# printing the list, abusing the fact that RST guarantees to strip
|
||||
# non-conforming characters
|
||||
options['class'] = ['plot-directive'] + options['class']
|
||||
else:
|
||||
options.setdefault('class', ['plot-directive'])
|
||||
keep_context = 'context' in options
|
||||
context_opt = None if not keep_context else options['context']
|
||||
|
||||
rst_file = document.attributes['source']
|
||||
rst_dir = os.path.dirname(rst_file)
|
||||
|
||||
if len(arguments):
|
||||
if not config.plot_basedir:
|
||||
source_file_name = os.path.join(setup.app.builder.srcdir,
|
||||
directives.uri(arguments[0]))
|
||||
else:
|
||||
source_file_name = os.path.join(setup.confdir, config.plot_basedir,
|
||||
directives.uri(arguments[0]))
|
||||
|
||||
# If there is content, it will be passed as a caption.
|
||||
caption = '\n'.join(content)
|
||||
|
||||
# Enforce unambiguous use of captions.
|
||||
if "caption" in options:
|
||||
if caption:
|
||||
raise ValueError(
|
||||
'Caption specified in both content and options.'
|
||||
' Please remove ambiguity.'
|
||||
)
|
||||
# Use caption option
|
||||
caption = options["caption"]
|
||||
|
||||
# If the optional function name is provided, use it
|
||||
if len(arguments) == 2:
|
||||
function_name = arguments[1]
|
||||
else:
|
||||
function_name = None
|
||||
|
||||
code = Path(source_file_name).read_text(encoding='utf-8')
|
||||
output_base = os.path.basename(source_file_name)
|
||||
else:
|
||||
source_file_name = rst_file
|
||||
code = textwrap.dedent("\n".join(map(str, content)))
|
||||
counter = document.attributes.get('_plot_counter', 0) + 1
|
||||
document.attributes['_plot_counter'] = counter
|
||||
base, ext = os.path.splitext(os.path.basename(source_file_name))
|
||||
output_base = '%s-%d.py' % (base, counter)
|
||||
function_name = None
|
||||
caption = options.get('caption', '')
|
||||
|
||||
base, source_ext = os.path.splitext(output_base)
|
||||
if source_ext in ('.py', '.rst', '.txt'):
|
||||
output_base = base
|
||||
else:
|
||||
source_ext = ''
|
||||
|
||||
# ensure that LaTeX includegraphics doesn't choke in foo.bar.pdf filenames
|
||||
output_base = output_base.replace('.', '-')
|
||||
|
||||
# is it in doctest format?
|
||||
is_doctest = contains_doctest(code)
|
||||
if 'format' in options:
|
||||
if options['format'] == 'python':
|
||||
is_doctest = False
|
||||
else:
|
||||
is_doctest = True
|
||||
|
||||
# determine output directory name fragment
|
||||
source_rel_name = relpath(source_file_name, setup.confdir)
|
||||
source_rel_dir = os.path.dirname(source_rel_name).lstrip(os.path.sep)
|
||||
|
||||
# build_dir: where to place output files (temporarily)
|
||||
build_dir = os.path.join(os.path.dirname(setup.app.doctreedir),
|
||||
'plot_directive',
|
||||
source_rel_dir)
|
||||
# get rid of .. in paths, also changes pathsep
|
||||
# see note in Python docs for warning about symbolic links on Windows.
|
||||
# need to compare source and dest paths at end
|
||||
build_dir = os.path.normpath(build_dir)
|
||||
os.makedirs(build_dir, exist_ok=True)
|
||||
|
||||
# how to link to files from the RST file
|
||||
try:
|
||||
build_dir_link = relpath(build_dir, rst_dir).replace(os.path.sep, '/')
|
||||
except ValueError:
|
||||
# on Windows, relpath raises ValueError when path and start are on
|
||||
# different mounts/drives
|
||||
build_dir_link = build_dir
|
||||
|
||||
# get list of included rst files so that the output is updated when any
|
||||
# plots in the included files change. These attributes are modified by the
|
||||
# include directive (see the docutils.parsers.rst.directives.misc module).
|
||||
try:
|
||||
source_file_includes = [os.path.join(os.getcwd(), t[0])
|
||||
for t in state.document.include_log]
|
||||
except AttributeError:
|
||||
# the document.include_log attribute only exists in docutils >=0.17,
|
||||
# before that we need to inspect the state machine
|
||||
possible_sources = {os.path.join(setup.confdir, t[0])
|
||||
for t in state_machine.input_lines.items}
|
||||
source_file_includes = [f for f in possible_sources
|
||||
if os.path.isfile(f)]
|
||||
# remove the source file itself from the includes
|
||||
try:
|
||||
source_file_includes.remove(source_file_name)
|
||||
except ValueError:
|
||||
pass
|
||||
|
||||
# save script (if necessary)
|
||||
if options['show-source-link']:
|
||||
Path(build_dir, output_base + source_ext).write_text(
|
||||
doctest.script_from_examples(code)
|
||||
if source_file_name == rst_file and is_doctest
|
||||
else code,
|
||||
encoding='utf-8')
|
||||
|
||||
# make figures
|
||||
try:
|
||||
results = render_figures(code=code,
|
||||
code_path=source_file_name,
|
||||
output_dir=build_dir,
|
||||
output_base=output_base,
|
||||
context=keep_context,
|
||||
function_name=function_name,
|
||||
config=config,
|
||||
context_reset=context_opt == 'reset',
|
||||
close_figs=context_opt == 'close-figs',
|
||||
code_includes=source_file_includes)
|
||||
errors = []
|
||||
except PlotError as err:
|
||||
reporter = state.memo.reporter
|
||||
sm = reporter.system_message(
|
||||
2, "Exception occurred in plotting {}\n from {}:\n{}".format(
|
||||
output_base, source_file_name, err),
|
||||
line=lineno)
|
||||
results = [(code, [])]
|
||||
errors = [sm]
|
||||
|
||||
# Properly indent the caption
|
||||
caption = '\n' + '\n'.join(' ' + line.strip()
|
||||
for line in caption.split('\n'))
|
||||
|
||||
# generate output restructuredtext
|
||||
total_lines = []
|
||||
for j, (code_piece, images) in enumerate(results):
|
||||
if options['include-source']:
|
||||
if is_doctest:
|
||||
lines = ['', *code_piece.splitlines()]
|
||||
else:
|
||||
lines = ['.. code-block:: python', '',
|
||||
*textwrap.indent(code_piece, ' ').splitlines()]
|
||||
source_code = "\n".join(lines)
|
||||
else:
|
||||
source_code = ""
|
||||
|
||||
if nofigs:
|
||||
images = []
|
||||
|
||||
opts = [
|
||||
':%s: %s' % (key, val) for key, val in options.items()
|
||||
if key in ('alt', 'height', 'width', 'scale', 'align', 'class')]
|
||||
|
||||
# Not-None src_name signals the need for a source download in the
|
||||
# generated html
|
||||
if j == 0 and options['show-source-link']:
|
||||
src_name = output_base + source_ext
|
||||
else:
|
||||
src_name = None
|
||||
|
||||
result = jinja2.Template(config.plot_template or TEMPLATE).render(
|
||||
default_fmt=default_fmt,
|
||||
build_dir=build_dir_link,
|
||||
src_name=src_name,
|
||||
multi_image=len(images) > 1,
|
||||
options=opts,
|
||||
images=images,
|
||||
source_code=source_code,
|
||||
html_show_formats=config.plot_html_show_formats and len(images),
|
||||
caption=caption)
|
||||
|
||||
total_lines.extend(result.split("\n"))
|
||||
total_lines.extend("\n")
|
||||
|
||||
if total_lines:
|
||||
state_machine.insert_input(total_lines, source=source_file_name)
|
||||
|
||||
return errors
|
||||
Reference in New Issue
Block a user