[xep-support] text positioning differences between XEP 3.6.3 and 3.7.x

[MAISONNY Benoit]

Hi,

We compared the AT files produced from the same FO file using different versions of XEP, and found differences in the positioning and width of elements. For example:

xep363: <xep:text value="Copyright " x="332218" y="46987" width="36456"/>
xep372: <xep:text value="Copyright " x="332386" y="46989" width="36440"/>

In some cases, the differences in "y" value can amount to 10000. The difference in width is probably the cause of the positioning differences. Perhaps you changed the algorithm to compute the characters' size?

Of course, we are using the same fonts.xml file, on the same computer, to compare results.

Is there a way to avoid these differences? We need to find which pages have changed between 2 versions of a document, and we are using the AT format to spot any difference. But in this case, the differences on the page are due to XEP, not to any change in content.


Thanks,
Benoit Maisonny



......................................................................
Benoit MAISONNY                        benoit.maisonny at eurocontrol.int
eAIP development & support         http://www.eurocontrol.int/ais/eaip
EUROCONTROL                        Aeronautical Information Management

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