The biggest suckage in Geo::Track::Log is that my GPX parsing is
a)primitive and b)slow as all heck. It uses XML::Simple (ack!).
How well does your pure perl version work?
GPSBabel is so much faster...personally I'd rather do
NMEA -> gpsbabel -> something faster to parse than GPX, even text -> Perl
something parser -> perl data structure
Even cooler would be to leave the data within gpsbabel's internal
structure and have a perl wrapper to access the data.
On 8/30/06, Andy Armstrong <[EMAIL PROTECTED]> wrote:
On 30 Aug 2006, at 23:44, Rich Gibson wrote:
> How effective is the existing Geo::Gpx? It is nice to have pure-perl,
> but the GPX parser in gpsbabel is quite fast, so if you were into
> wrapping gpsbabel anyway that seems a good path.
The existing Geo::Gpx doesn't do that much - all it can do is output
an array of waypoints as GPX. It doesn't handle routes and tracks and
it doesn't parse at all.
I've written a pure perl GPX parser / generator which can be used
standalone. It's also the basis of the interface to gpsbabel. Behind
the scenes importing, say, an NMEA log is implemented as
NMEA -> gpsbabel -> GPX -> Perl GPX parser -> perl data structure
I've been doing some work on gpsbabel too - and eventually I plan to
add a format to gpsbabel which is GPX + any useful internal data
gpsbabel has (call this format BabelBabble or somesuch :)
So then you'll be able to do
Some file format -> gpsbabel -> BabelBabble -> Perl parser -> perl
data structure
and back
perl data structure -> generate BabelBabbel -> gpsbabel -> Some file
format
But the basic GPX functionality is pure perl and independent of
gpsbabel.
--
Andy Armstrong, hexten.net
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Rich Gibson
Chief Scientist, Locative Technologies
http://mappinghacks.com
http://geocoder.us
http://testingrange.com
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