Re: [talk-au] Transponders mistagged

[Gary Gallagher]

On Fri, 2011-04-22 at 13:43 +1000, Elizabeth Dodd wrote:
 On Fri, 22 Apr 2011 13:31:22 +1000
 Gary Gallagher g.null.dev...@gmail.com wrote:
 
  Hi,
 I've been editing some areas of rural Victoria and I keep coming
  across communications transponders that have been mis-tagged as
  relations. in the .osm file the xml looks like this:-
  
relation id='921922' action='modify'
  timestamp='2010-05-22T23:46:04Z' uid='74617' user='JohnSmith'
  visible='true' version='2' changeset='4779256'
  member type='node' ref='740879387' role='transponder' /
  tag k='acma.gov.au:licence_id' v='1156821' /
  tag k='attribution' v='Australian Communications and Media
  Authority, Register of Radiocommunications Licences' /
  tag k='attribution:url'
  v='http://www.acma.gov.au/WEB/STANDARD/pc=PC_9150' /
  tag k='communications_transponder:antenna_type'
  v='directional' / tag k='communications_transponder:frequency'
  v='744.25' / tag k='communications_transponder:modulation'
  v='PAL' / tag k='communications_transponder:polarisation'
  v='horizontal' / tag k='communications_transponder:power'
  v='1000' / tag k='height' v='23' /
  tag k='type' v='transponder' /
  tag k='source' v='data.australia.gov.au' /
/relation
  
  I'm not sure about some of the tags but from what I can figure out
  from the transponder proposal at
  http://wiki.openstreetmap.org/wiki/Proposed_features/Communications_Transponder
  the tag k='type' v='transponder' / should be tag k='man_made'
  v='communications_transponder' / and the whole thing should be a
  node and not a relation. I could perhaps write an xsl script to clean
  up the individual .osm files I use but this mis-tag is all over the
  state, and perhaps Australia. Is there someone who knows how to do a
  more systemic clean up.
  
  cheers
 Gary
 
 The logical reason for a relation is that there are numerous parts to
 the transponders at various heights and that there are several per
 aerial mast / comms hut
 Perhaps the wiki page needs a rewrite?
 
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Hi,
I've been rereading the wiki entry. Is it proposing a structure in
which each transponder is first created as a node labeled
man_made=communications_transponder each with all their details. Than
they are grouped as a relation with the
type=communication_tower_group. Presumably the group could also have
height for the mast and other information?

regards
Gary


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Re: [talk-au] Transponders mistagged

[John Smith]

On 22 April 2011 18:35, Gary Gallagher g.null.dev...@gmail.com wrote:
I've been rereading the wiki entry. Is it proposing a structure in
 which each transponder is first created as a node labeled
 man_made=communications_transponder each with all their details. Than
 they are grouped as a relation with the
 type=communication_tower_group. Presumably the group could also have
 height for the mast and other information?

The ACMA data listed the height for the antenna on the mast, the
relation links to the mast node as well as storing information about
the individual antenna in a relation.

If we were to store each antenna as a node it would most likely get
merged, as many of other nodes have been merged by others in the past.

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