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 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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