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https://issues.apache.org/jira/browse/FOP-2230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13634321#comment-13634321
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Vincent Hennebert commented on FOP-2230:
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After a closer look at this example, I'm tempted to say that the result is
correct. Unexpected maybe, but correct.
Cells 1.1 and 1.3 span 2 rows, but their content is only one line worth, so it
all fits on the first row. As to cell 2.3, it's spanning rows 2 and 3, so it's
ok if all its content is put on row 3. So row 2 is there, but it's basically
empty. It has zero height.
Requiring row 2 to have non-zero height means that we have to add some
arbitrary whitespace. How much? That clashes with the page layout philosophy
which is biased towards fitting as much content as possible on a page (for
example, between two ways of laying out a paragraph, one on 9 lines, one or 10
lines, the 9-line version will be preferred). Besides, that layout with
whitespace can be achieved by adding a block containing a non-breaking space
after "1.1" (which is probably how you made the expected version).
We could impose to put at least some content on every row, but it would be hard
to define a way that would lead to satisfying results in every situation. For
example, imagine that instead of the text "2.3" you have a big image. Do you
really want to have row 3 starting all the way down after that big image?
So we're facing a corner case here. All I can suggest is to re-work the layout
of the table to avoid that situation...
What do people think?
> RowSpanning will not effect, if there is not a column with all rows
> -------------------------------------------------------------------
>
> Key: FOP-2230
> URL: https://issues.apache.org/jira/browse/FOP-2230
> Project: Fop
> Issue Type: Bug
> Components: pdf
> Affects Versions: 1.1
> Reporter: Markus Sticker
> Attachments: table_error_expected.pdf, table_error.fo,
> table_error.pdf, table_error.rtf
>
>
> RowSpanning will not effect, if there is not a column with all rows
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