[talk-au] Mapping houses and addresses in Sydney

Phil Wyatt phil at wyatt-family.com
Sat Jun 16 23:30:16 UTC 2018


You could put a project up on the HOT Task manager as a low priority and then send folks the link

https://tasks.hotosm.org/contribute?difficulty=ALL


Cheers - Phil, 
On the road with his iPad 

> On 16 Jun 2018, at 10:29 pm, Dion Moult <dion at thinkmoult.com> wrote:
> 
> 
> As a continuation of this thread just wondering if there was a way to divide up Sydney into a grid and automatically check the progress of whether that zone has been mapped or not. Is there a standard approach for this? 
> 
> 
> 
> Dion Moult
> 
> 
> 
> 
> 
> -------- Original Message --------
> On 6 Jun 2018, 09:39, Warin < 61sundowner at gmail.com> wrote:
> 
> On 06/06/18 08:51, Dion Moult wrote:
> > Thanks Andrew et all,
> >
> > Yes, I have used the ESRI imagery layer. Thanks for the heads up of the LPI base map. Before I go too far, can one of you please look at the work I've done so far if I'm doing things correctly? Here is a small sample in the suburb of Epping that I have traced houses and added addresses:
> >
> > https://www.openstreetmap.org/#map=18/-33.78071/151.06628
> >
> > In that scenario I did not trace off the LPI imagery, but instead traced off ESRI. I noticed if I enable the LPI imagery, the houses don't line up. Should this be fixed? If so, what's the best way?
> 
> 
> Any imagery can have a 'offset' from where it should be. And that offset will vary as you go up and down hills.
> 
> The LPI Imagery has much better resolution and less parallax error than the other sources .. I prefer it to any other images for its accuracy.
> 
> That said it is usefull to check with other images for more up to date things. I found in Coffs Harbour that the DigitalGlobe stuff is more current.
> 
> 
> I'll leave others to comment on that address stuff.. no expert on that (yet). :)
> 
> 
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