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https://issues.apache.org/jira/browse/FOP-2180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13550991#comment-13550991
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Peter Hancock commented on FOP-2180:
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Whoops - the evils of cut & paste!
> [PATCH] TTFReader: Output bounding box information for glyphs
> -------------------------------------------------------------
>
> Key: FOP-2180
> URL: https://issues.apache.org/jira/browse/FOP-2180
> Project: Fop
> Issue Type: Wish
> Components: fonts
> Affects Versions: 1.1
> Reporter: Alexey Neyman
> Assignee: Peter Hancock
> Priority: Minor
> Attachments: ttfreader.diff
>
>
> As I mentioned in another email, I am trying to constrain FOP to use only
> local fonts (i.e. ones described in fop.cfg). For SVGs, I have a workaround:
> - Generate fonts in SVG format using ttf2svg utility from Batik;
> - Use an XSL stylesheet to embed all the fonts used by an SVG image into the
> image itself;
> - Use such "preprocessed" SVG image as the input to FOP.
> This does not work well with JEuclid, though. When JEuclid generates SVG from
> MathML, it performs font rendering - that is, replaces characters by actual
> paths. And again, it uses system fonts, not the fonts available in FOP - even
> if running as FOP plugin.
> To work around this issue for MathML, I am currently switching from JEuclid
> to
> pMML2SVG (http://pmml2svg.sourceforge.net). It generates SVGs with text
> characters, not paths. But in order to do so, it needs font metrics.
> Unfortunately, font metrics produced by stock FOP TTFReader are not
> sufficient
> - this stylesheet also needs bounding box for each glyph. To obtain these,
> pMML2SVG currently packages an augmented TTFReader Java sources which are to
> be compiled and used in lieu of the stock one.
> Given that the patch is very small and as far as I can tell, compatible with
> current users of font metrics (it just adds 4 attributes to glyph
> description), is it possible to integrate this support into stock FOP?
> Patch from pMML2SVG, slightly modified to apply to FOP 1.1 sources, attached.
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