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# nipype.sphinxext.plot_workflow module

## `nipype.sphinxext.plot_workflow` – Workflow plotting extension

A directive for including a nipype workflow graph in a Sphinx document.

This code is forked from the plot_figure sphinx extension of matplotlib.

By default, in HTML output, workflow will include a .png file with a link to a high-res .png. In LaTeX output, it will include a .pdf. The source code for the workflow may be included as inline content to the directive workflow:

    .. workflow ::
        :graph2use: flat
        :simple_form: no

        from niflow.nipype1.workflows.dmri.camino.connectivity_mapping import create_connectivity_pipeline
        wf = create_connectivity_pipeline()

For example, the following graph has been generated inserting the previous code block in this documentation:

(Source code)

### Options

The `workflow` directive supports the following options:
  graph2use{‘hierarchical’, ‘colored’, ‘flat’, ‘orig’, ‘exec’}

    Specify the type of graph to be generated.

  simple_form: bool

    Whether the graph will be in detailed or simple form.

  format{‘python’, ‘doctest’}

    Specify the format of the input

  include-sourcebool

    Whether to display the source code. The default can be changed using the workflow_include_source variable in conf.py

  encodingstr

    If this source file is in a non-UTF8 or non-ASCII encoding, the encoding must be specified using the :encoding: option. The encoding will not be inferred using the `-*- coding -*-` metacomment.

Additionally, this directive supports all of the options of the image directive, except for target (since workflow will add its own target). These include alt, height, width, scale, align and class.

### Configuration options

The workflow directive has the following configuration options:
  graph2use

    Select a graph type to use

  simple_form

    determines if the node name shown in the visualization is either of the form nodename (package) when set to True or nodename.Class.package when set to False.

  wf_include_source

    Default value for the include-source option

  wf_html_show_source_link

    Whether to show a link to the source in HTML.

  wf_pre_code

    Code that should be executed before each workflow.

  wf_basedir

    Base directory, to which `workflow::` file names are relative to. (If None or empty, file names are relative to the directory where the file containing the directive is.)

  wf_formats
    File formats to generate. List of tuples or strings::

      [(suffix, dpi), suffix, …]

    that determine the file format and the DPI. For entries whose DPI was omitted, sensible defaults are chosen. When passing from the command line through sphinx_build the list should be passed as suffix:dpi,suffix:dpi, ….

  wf_html_show_formats

    Whether to show links to the files in HTML.

  wf_rcparams

    A dictionary containing any non-standard rcParams that should be applied before each workflow.

  wf_apply_rcparams

    By default, rcParams are applied when context option is not used in a workflow directive. This configuration option overrides this behavior and applies rcParams before each workflow.

  wf_working_directory

    By default, the working directory will be changed to the directory of the example, so the code can get at its data files, if any. Also its path will be added to sys.path so it can import any helper modules sitting beside it. This configuration option can be used to specify a central directory (also added to sys.path) where data files and helper modules for all code are located.

  wf_template

    Provide a customized template for preparing restructured text.

class nipype.sphinxext.plot_workflow.GraphError

  Bases: `RuntimeError`

class nipype.sphinxext.plot_workflow.ImageFile(basename, dirname)

  Bases: `object`

  filename(fmt)
  filenames()

class nipype.sphinxext.plot_workflow.WorkflowDirective(name, arguments, options, content, lineno, content_offset, block_text, state, state_machine)

  Bases: `docutils.parsers.rst.Directive`

  final_argument_whitespace = False

    May the final argument contain whitespace?

  has_content = True

    May the directive have content?

  option_spec = {'align': <function _option_align>, 'alt': <function unchanged>, 'class': <function class_option>, 'context': <function _option_context>, 'encoding': <function encoding>, 'format': <function _option_format>, 'graph2use': <function _option_graph2use>, 'height': <function length_or_unitless>, 'include-source': <function _option_boolean>, 'nofigs': <function flag>, 'scale': <function nonnegative_int>, 'simple_form': <function _option_boolean>, 'width': <function length_or_percentage_or_unitless>}

    Mapping of option names to validator functions.

  optional_arguments = 2

    Number of optional arguments after the required arguments.

  required_arguments = 0

    Number of required directive arguments.

  run()

nipype.sphinxext.plot_workflow.contains_doctest(text)

nipype.sphinxext.plot_workflow.format_template(template, **kw)

nipype.sphinxext.plot_workflow.get_wf_formats(config)

nipype.sphinxext.plot_workflow.mark_wf_labels(app, document)

  To make graphs referenceable, we need to move the reference from the “htmlonly” (or “latexonly”) node to the actual figure node itself.

nipype.sphinxext.plot_workflow.out_of_date(original, derived)

  Returns True if derivative is out-of-date wrt original, both of which are full file paths.

nipype.sphinxext.plot_workflow.remove_coding(text)

  Remove the coding comment, which exec doesn’t like.

nipype.sphinxext.plot_workflow.render_figures(code, code_path, output_dir, output_base, context, function_name, config, graph2use, simple_form, context_reset=False, close_figs=False)

  Run a nipype workflow creation script and save the graph in output_dir. Save the images under output_dir with file names derived from output_base

nipype.sphinxext.plot_workflow.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.

nipype.sphinxext.plot_workflow.setup(app)

nipype.sphinxext.plot_workflow.unescape_doctest(text)

  Extract code from a piece of text, which contains either Python code or doctests.