[OSM-talk] Stupid Josm question

[Andy Robinson]

When you load in the gpx file to JOSM, hit the "No" response to "Do you want
to open as raw data" and you will find all your trackpoints turned into
nodes and each separate continuous log turned into a way. 

Not advisable to use this method in areas where there is already a lot of
data.

Cheers,

Andy

Andy Robinson
Andy_J_Robinson at blueyonder.co.uk 

>-----Original Message-----
>From: talk-bounces at openstreetmap.org [mailto:talk-
>bounces at openstreetmap.org] On Behalf Of Barnett, Phillip
>Sent: 01 July 2006 22:40
>To: Gabriel Ebner; talk at openstreetmap.org
>Subject: RE: [OSM-talk] Stupid Josm question
>
>But isn't that just going to produce raw tracks, (yellow data points)
>rather than finished roads? I want JOSM to stitch together the data points
>and produce a seamless sequence of segments... which it does internally,
>but, unless I'm misunderstanding, which I probably am, doesn't upload back
>to OSM.
>
>
>-----Original Message-----
>From: talk-bounces at openstreetmap.org on behalf of Gabriel Ebner
>Sent: Sat 7/1/2006 9:32 PM
>To: talk at openstreetmap.org
>Subject: Re: [OSM-talk] Stupid Josm question
>
>On Sat, Jul 01, 2006 at 09:12:41PM +0100, Barnett, Phillip wrote:
>> I'm obviously missing something obvious here, but given that my GPS
>tracks,
>> loaded into josm and with the 'Draw lines between raw GPS points' option,
>> produces beautiful looking roads  - why am I then painstakingly adding
>nodes
>> and segments in an attempt to make an approximation of those
>automatically
>> generated by josm? Yes, there will be patches that require cleaning up,
>but
>> in the main, a lot of the groundwork could already be done if I could
>just
>> get josm to upload the raw gps tracks as finished roads. The conversion
>into
>> ways would still need doing manually, but the tracing of tracks is hugely
>> labour intensive, particularly if you're trying for accuracy
>
>Right click on the gps data layer, `Convert to data layer'.  The resulting
>nodes however will have 'ele' and 'time' tags, and don't forget to remove
>the
>waypoints before uploading.
>
>> (btw, is approx 50 nodes for a 2 km stretch of minor country lane a bit
>> excessive, or what you need for accurate map making, as I think it is
>> ....?)
>
>That's just 1 node every 40 meters, not that much if the road is curvy.  I
>don't think that throwing away nodes for the sake of compactness is worth
>it,
>that can be done ad hoc if that should be necessary, it's much more
>difficult
>the other way.  So better leave them in and try to make it look good (round
>curves).
>
>  Gabriel.
>
>
>
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