[FWTools] Question about GFS files

[Tim Manners]

I have been looking into the use of ogr2ogr to load some GML data into a
PostgreSQL database.

I understand that I can edit the GFS files which are created in order to
change how the GML elements are handled (e.g. changing the output width
for a text string).

What I am interested in knowing is how to handle nested elements in the
GML (which currently seem to be ignored).

For example:
The following section of GML defines how a piece of text is rendered in
terms of the anchorPosition, font, height and orientation...

<osgb:textRendering>
<osgb:anchorPosition>3</osgb:anchorPosition>
<osgb:font>1</osgb:font>
<osgb:height>3.000</osgb:height>
<osgb:orientation>0</osgb:orientation>
</osgb:textRendering>

Is it possible to handle a nested element in the <ElementPath> tag of
the GFS file? If so - how is it done?

Additionally, is it possible to bring mathematical functions into the
GFS file? The reason that I ask is because the orientation element is
stored in tenths of a degree - meaning it needs to be divided by 10 to
get the true orientation angle (and it would be good to perform this
function on the data load - as opposed to subsequently in PostgreSQL).

Many thanks in advance.

Tim

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