[talk-ph] OSM Editing Tip in < 5 Minutes screencast series

maning sambale emmanuel.sambale at gmail.com
Fri Apr 30 11:34:30 BST 2010


tutubi,

If you use potlatch, no easy way.  Sorry.

For merkaartor and JOSM, you can rectify the image using an online map
rectifier Map Warper  beta:
http://warper.geothings.net/

After the rectification, you can now use the image as a WMS.  One
warning when capturing aerial images:  "anything below about 70° to
the vertical isn't that useful. 45° pictures make nice panoramas but
aren't good for warping. "

reference: http://wiki.openstreetmap.org/wiki/Stratford-upon-Avon/Imagery


On Fri, Apr 30, 2010 at 5:40 PM, tutubi
<tutubi at backpackingphilippines.com> wrote:
> Hi Maning,
>
> I was about to ask you that next question on how to use an aerial photo to
> trace on.
> I have a high-res picture of Paete, Laguna I took in 2006 on top of the hill
> facing my hometown
> (where the 3 crosses are) It's attached here (but I don't know if the list
> allows attachments
> so I also sent you the file directly). Paete as seen above used to look like
> an eagle that's why it's sometimes called
> Matanglawin by oldies (Wawa park is the head pointing west and the the wings
> bordered by Manila East Road)
>
> from the picture, I can identify major roads and landmarks including Wawa
> park as if it's floating on Laguna Lake.
> I can get a bigger, sharper picture next time i trek up the hill to map the
> trail (and probably the road going there, an
> option for bikers or for physically-challenged persons)
>
> the picture needs to be aligned with OSM, since it's a bit skewed, for it to
> be usable so I'll just experiment on it later.
>
> --
> ---
> I explore, therefore I blog.
>
> http://www.backpackingphilippines.com
>
>
> On Fri, Apr 30, 2010 at 2:17 PM, maning sambale <emmanuel.sambale at gmail.com>
> wrote:
>>
>> Do you know you can use other background maps in Potlatch?
>>
>> We have additional high-res images for some areas without Yahoo!
>> imagery.  Currently we have imagery for Pampanga, Bulacan and
>> Pangasinan.  Details here:
>
>
>



-- 
cheers,
maning
------------------------------------------------------
"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambale.wikispaces.com/
blog: http://epsg4253.wordpress.com/
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