Re: [Tagging] Additional sub tags for survey mark

2017-12-02 Thread Greg Troxel
Warin <61sundow...@gmail.com> writes: > Triangulation (or 'trig point') that are visible over quite some > distance (say over 2 km), used to triangulate a position without > having to go to the mark. Usually a pole standing on top of a > rise/hill. > > Benchmarks that are visible on the surface

Re: [Tagging] Additional sub tags for survey mark

2017-11-23 Thread Philip Barnes
On 23 November 2017 14:37:53 GMT+00:00, Craig Wallace wrote: >On 2017-11-20 23:47, Warin wrote: >> Hi, >> >> There have been attempts in the past to add sub tags to >> man_made=survey_point >> https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dsurvey_point >> >> To me

Re: [Tagging] Additional sub tags for survey mark

2017-11-23 Thread Craig Wallace
On 2017-11-20 23:47, Warin wrote: Hi, There have been attempts in the past to add sub tags to man_made=survey_point https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dsurvey_point To me there are 2 'types'. they are quite different; Triangulation (or 'trig point') that are visible over quite

Re: [Tagging] Additional sub tags for survey mark

2017-11-23 Thread Warin
Trig points ... according to http://www.icsm.gov.au/mapping/surveying1.html#jargon_trig all the trig points have a benchmark under them. Suppose that makes sense in that if the trig point were damaged in a store then it can be easily re-established. On 23-Nov-17 03:04 PM, Mark Wagner wrote:

Re: [Tagging] Additional sub tags for survey mark

2017-11-23 Thread Martin Koppenhoefer
2017-11-23 10:28 GMT+01:00 Andy Townsend : > > Can you give an example where either of these are used to any significant > degree? they're both in proposal state, but solve the problem. You could also create 2 nodes at the same position (e.g. by entering coordinates), but

Re: [Tagging] Additional sub tags for survey mark

2017-11-23 Thread Andy Townsend
On 23/11/2017 08:56, Martin Koppenhoefer wrote: you can, independently from tagging, create multiple objects for the same node, through relations, e.g. the node relation or AFAIR a provides relation. ... which no data consumer (and most mappers) won't understand. Can you give an example

Re: [Tagging] Additional sub tags for survey mark

2017-11-23 Thread Martin Koppenhoefer
sent from a phone > On 21. Nov 2017, at 02:07, Andrew Harvey wrote: > > How would your proposal work with multiple survey points on the one object? > I've never come across this so not sure myself. you can, independently from tagging, create multiple objects for

Re: [Tagging] Additional sub tags for survey mark

2017-11-22 Thread Mark Wagner
On Thu, 23 Nov 2017 09:25:52 +1100 Warin <61sundow...@gmail.com> wrote: > On 21-Nov-17 04:12 PM, Graeme Fitzpatrick wrote: > > > > > > > > On 21 November 2017 at 12:48, Andrew Harvey > > > wrote: > > > > > > I'm not sure, I've only

Re: [Tagging] Additional sub tags for survey mark

2017-11-22 Thread Graeme Fitzpatrick
but the accuracy would be the key thing between a hill top and a trig > point as the trig point would be determined with much higher precision. > & the trig point is not necessarily on the highest point of the hill Thanks Graeme ___ Tagging mailing

Re: [Tagging] Additional sub tags for survey mark

2017-11-22 Thread Warin
On 21-Nov-17 08:32 PM, Mark Wagner wrote: On Tue, 21 Nov 2017 10:47:30 +1100 Warin <61sundow...@gmail.com> wrote: Hi, There have been attempts in the past to add sub tags to man_made=survey_point https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dsurvey_point To me there are 2 'types'. they

Re: [Tagging] Additional sub tags for survey mark

2017-11-21 Thread Mark Wagner
On Tue, 21 Nov 2017 10:47:30 +1100 Warin <61sundow...@gmail.com> wrote: > Hi, > > There have been attempts in the past to add sub tags to > man_made=survey_point > https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dsurvey_point > > To me there are 2 'types'. they are quite different; > >

Re: [Tagging] Additional sub tags for survey mark

2017-11-21 Thread marc marc
Le 21. 11. 17 à 02:07, Andrew Harvey a écrit : > My only question is the wiki page currently says "Since multiple survey > points are possible on one object (eg. a benchmark on a triangulation > point/pillar) then in order to avoid multiple values within one key, > such as a semicolon-delimited

Re: [Tagging] Additional sub tags for survey mark

2017-11-20 Thread Graeme Fitzpatrick
On 21 November 2017 at 12:48, Andrew Harvey wrote: > > > I'm not sure, I've only seen two types the brass disk in the footpath, > gutter, road etc. and the rock or cement pillar with a plate on top, > sometimes with a black mental circle which can be seen from a

Re: [Tagging] Additional sub tags for survey mark

2017-11-20 Thread Andrew Harvey
On 21 November 2017 at 12:29, Warin <61sundow...@gmail.com> wrote: > > I think that triangulation points are not normally used this way? Where > required the placement of the equipment on the exact centre of the point > may mean that the structure needs to be disassembled. > I'd think any

Re: [Tagging] Additional sub tags for survey mark

2017-11-20 Thread Warin
On 21-Nov-17 12:07 PM, Andrew Harvey wrote: Being able to distinguish different types of survey marks and points is very much needed in OSM, it would be great to see this formalised on the wiki. I like the idea of modelling it after

Re: [Tagging] Additional sub tags for survey mark

2017-11-20 Thread Andrew Harvey
Being able to distinguish different types of survey marks and points is very much needed in OSM, it would be great to see this formalised on the wiki. I like the idea of modelling it after https://wiki.openstreetmap.org/wiki/ Seamarks/Categories_of_Objects#Control_Points_.28CATCTR.29 as that

[Tagging] Additional sub tags for survey mark

2017-11-20 Thread Warin
Hi, There have been attempts in the past to add sub tags to man_made=survey_point https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dsurvey_point To me there are 2 'types'. they are quite different; Triangulation (or 'trig point') that are visible over quite some distance (say over 2 km),