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我正在开发一个用于软件文档的 Sphinx 项目,其中包括很多数字。我使用“numref”来引用图片。在 HTML 中它工作正常。在 LaTex 中,我得到了 Fig. ?? 网上的 numref 只有几个问题,答案对我没有帮助。谁能告诉我我做错了什么?

我使用 sphinx-quickstart 安装了 Sphinx 环境。我的 conf.py 中的相关行是:

    # Conf.py

    # Automatic numbering
    numfig = True

    # -- Options for LaTeX output ------------------------------------------------

    latex_elements = {
        # The paper size ('letterpaper' or 'a4paper').
        #
        'papersize': 'a4paper',

        # The font size ('10pt', '11pt' or '12pt').
        #
        'pointsize': '10pt',

        # Additional stuff for the LaTeX preamble.
        # 'preamble': '',

        # Latex figure (float) alignment
        # 'figure_align': 'htbp',
        'figure_align': 'H' # disable floating
    }

    # Grouping the document tree into LaTeX files. List of tuples
    # (source start file, target name, title,
    #  author, documentclass [howto, manual, or own class]).

    latex_documents = [
        (master_doc, 'PDF_Test.tex', 'PDF generation',
         'Niels de Nies', 'manual'),
    ]

我的来源(index.rst)看起来像:

    #########################
    Sphinx numref Test
    #########################

    My first chapter
    ----------------

    The purpose of this test is to get the numref of figures working in LaTex.

    Section 1
    ~~~~~~~~~
    .. figure:: ../images/hippo.png
        :name: hippo

    :numref:`hippo` Hippopotamus    

    The figure above (:numref:`hippo`) shows an illuminated hippopotamus.

    The 'numref' works fine in HTML, but results in Fig. ?? with LaTex

    Below the alternative way using a label. The results are exactly the same:
    Perfect for HTML, but undefined reference for latexpdf

    .. _fig_hippo:

    .. figure:: ../images/hippo.png
        :name: hippo

    :numref:`fig_hippo` Hippopotamus    

在命令行 LaTeX 显示:

    === TeX engine is 'pdfTeX'
    Latexmk: Index file 'PDF_Test.idx' was written
    Latexmk: Log file says output to 'PDF_Test.pdf'
    Latexmk: List of undefined refs and citations:
      Reference `index:hippo' on page 1 undefined on input line 111
      Reference `index:hippo' on page 1 undefined on input line 113
    Latexmk: Summary of warnings from last run of (pdf)latex:
      Latex failed to resolve 2 reference(s)
    Latexmk: All targets () are up-to-date

在生成的 PDF_Test.tex 中,以下几行带来了麻烦:

    \hyperref[\detokenize{index:hippo}]{Fig.\@ \ref{\detokenize{index:hippo}}} Hippopotamus

    The figure above (\hyperref[\detokenize{index:hippo}]{Fig.\@ \ref{\detokenize{index:hippo}}}) shows an illuminated hippopotamus.

谁能给我一个线索如何解决这个问题?

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2 回答 2

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花了很多时间,但我终于找到了答案。源代码应如下所示:

    .. figure:: ../images/hippo.png
        :name: hippo

        Hippopotamus    

    The figure above (:numref:`hippo`) shows an illuminated hippopotamus.

以 HTML 和 PDF 格式显示,例如:

数字参考工作!

于 2020-04-01T21:52:42.637 回答
0

或者,换一种说法,为了 :numref: 正常工作,该图需要标题文本。生成 HTML 时,如果有标题文本,您会看到“图 2.1:河马”,如果您不使用 HTML :numref: 链接仍然有效,但图下方的标题丢失。对于 PDF 输出,标题是必需的。(如果您注意到,您还会收到来自 latexpdf 的缺少参考警告。)

于 2021-04-23T16:32:32.300 回答