There's no formal documentation of the area tree XML format to date. It is something very very few people need to use and the whole thing grew organically over time, so documentation wasn't a top priority. A contribution in this direction would be highly welcome. I'm happy to fill in any blanks if such a documentation is started. I don't have time to write the whole thing myself in the short term.
bpd = block-progression-dimension of the content rectangle of the area (= height for lr-tb script) bpda = allocated bpd = content bpd + spaces + borders + padding ipd = inline-progression-dimension of the content rectangle of the area (= width for lr-tb script) ipda = allocated ipd = content ipd + spaces + borders + padding Units are millipoints (1000ths of a point) as used in most of FOP (most notably the layout engine). Please note that our area tree is relatively close to the conceptual area tree (with its traits) described in the XSL specification. If you know a bit of the specification, the area tree XML is much easier to read. If you look into our layout engine test suite (test/layoutengine/standard-testcases), you'll find a lot of examples of what is expected in the area tree for various situations. HTH On 25.08.2009 16:26:29 TomWilcox wrote: > > Hi Guys, > > Sorry to return your attention to this aging thread! > > I am knee deep in IF and I have a been attempting to divine what each of the > different node attributes represent such as bpd (block progression > dimension?), etc. > > It would be really good to have a definitive description of the meaning and > function of each of the attribute (and nodes) in an IF document. I have been > searching diligently however I have failed to find any document that > completely satisfies this requirement. > > Would be possible for you provide me with a link to a thorough documentation > of the IF format or, if not, perhaps you might be able to provide an > explanation of the attributes important for reading the dimension of a given > block from an IF document (I think position is bpd, ipd, .. but ipda? and > bpda?) and what are the units (millipoints?). > > I am very grateful for any assistance. > > Thanks in advance, > Tom > -- > View this message in context: > http://www.nabble.com/Area-Tree-Handling-tp24431098p25135373.html > Sent from the FOP - Users mailing list archive at Nabble.com. Jeremias Maerki --------------------------------------------------------------------- To unsubscribe, e-mail: fop-users-unsubscr...@xmlgraphics.apache.org For additional commands, e-mail: fop-users-h...@xmlgraphics.apache.org
