XSL-FO 呈现器在页面顶部具有区域主体。我该如何解决？

Question

我假设 region-body 应该发生在 region-before 之后，但是一旦我转换为 PDF 就不是这种情况了。

<fo:root>
    <fo:layout-master-set>
        <fo:simple-page-master master-name="simpleA4" page-height="11in" page-width="8.5in"
                               margin-left="0.5cm" margin-right="0.5cm">
            <fo:region-body />
            <fo:region-before region-name="xsl-region-before" extent="10mm"/>
            <fo:region-after region-name="xsl-region-after" extent="3cm"/>
        </fo:simple-page-master>
    </fo:layout-master-set>
    <fo:page-sequence master-reference="simpleA4">
        <fo:static-content flow-name="xsl-region-before">
            <fo:block>
              HEADER
            </fo:block>
        </fo:static-content>
        <fo:static-content flow-name="xsl-region-after">
          <fo:block>
            FOOTER
          </fo:block>
        </fo:static-content>
        <fo:flow flow-name="xsl-region-body">
          <fo:block space-after="5mm">
                <fo:table>
                    <fo:table-body>
                        <fo:table-cell>
                            <fo:block>
                                CELL 1
                            </fo:block>
                        </fo:table-cell>
                        <fo:table-cell>
                            <fo:block />
                        </fo:table-cell>
                        <fo:table-cell>
                            <fo:block />
                        </fo:table-cell>
                        <fo:table-cell>
                            <fo:block />
                        </fo:table-cell>
                    </fo:table-body>
                </fo:table>
            </fo:block>
        </fo:flow>
    </fo:page-sequence>
</fo:root>

这是渲染输出的屏幕截图：

区域后按预期工作。

Answer 1

您还没有为您的 body 区域定义任何页边距，并且页面母版也没有顶部或底部页边距。这就是 body 区域流仅从页面顶部开始的原因。这里有一些建议：

Important: The margins you set for the region-body must be greater than or equal to the extents of the the region-before and region-after (XML.com article)

为您的 body 区域设置上下边距：

<fo:region-body margin-top="10mm"  margin-bottom="3cm"/>

XSL-FO 文档

<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
    <fo:layout-master-set>
        <fo:simple-page-master master-name="simpleA4" page-height="11in" page-width="8.5in"
                               margin-left="0.5cm" margin-right="0.5cm">
            <fo:region-body   margin-top="10mm"  margin-bottom="3cm"/>
            <fo:region-before region-name="xsl-region-before" extent="10mm"/>
            <fo:region-after region-name="xsl-region-after" extent="3cm"/>
        </fo:simple-page-master>
    </fo:layout-master-set>
    <fo:page-sequence master-reference="simpleA4">
        <fo:static-content flow-name="xsl-region-before">
            <fo:block>
              HEADER
            </fo:block>
        </fo:static-content>
        <fo:static-content flow-name="xsl-region-after">
          <fo:block>
            FOOTER
          </fo:block>
        </fo:static-content>
        <fo:flow flow-name="xsl-region-body">
          <fo:block space-after="5mm">
                <fo:table>
                    <fo:table-body>
                        <fo:table-cell>
                            <fo:block>
                                CELL 1
                            </fo:block>
                        </fo:table-cell>
                        <fo:table-cell>
                            <fo:block />
                        </fo:table-cell>
                        <fo:table-cell>
                            <fo:block />
                        </fo:table-cell>
                        <fo:table-cell>
                            <fo:block />
                        </fo:table-cell>
                    </fo:table-body>
                </fo:table>
            </fo:block>
        </fo:flow>
    </fo:page-sequence>
</fo:root>

渲染的 PDF 结果 (FOP)

在线尝试此解决方案here，转换仅复制所有内容，结果可以呈现为 PDF。

XSL-FO 呈现器在页面顶部具有区域主体。我该如何解决？

XSL-FO Render Has Region-Body at Top of Page. How do I fix?

xml

xsl-fo