[HOT] Image not loading !!!! Household level OSM in Bangladesh

Kevin Bullock kbullock at digitalglobe.com
Mon Apr 20 14:59:30 UTC 2015


Suggest you make a request via Mapbox and DigitalGlobe. https://www.mapbox.com/labs/request/  Unlike Bing, you can actually correspond with people at Mapbox and DG, who can provide imagery status, and have assurance imagery will not unexplainably disappear.

Kevin (from DG)

From: Harry Wood [mailto:mail at harrywood.co.uk]
Sent: Monday, April 20, 2015 7:45 AM
To: Ahasanul Hoque
Cc: hot at openstreetmap.org
Subject: Re: [HOT] Image not loading !!!! Household level OSM in Bangladesh

Looking at the area in this funny old bing analyzer tool would suggest the same. The area used to be hi-res and is not now hi-res, hence you can zoom in on some patches of green here, and they turn red.
http://ant.dev.openstreetmap.org/bingimageanalyzer/?lat=23.773877390904328&lon=90.25749206542969&zoom=13&l=bing

It's only a narrow strip missing about 5 km wide.
http://harrywood.co.uk/maps/bingosm.html?zoom=14&lat=23.7852&lon=90.2291
so that's annoying for you.

Not much can be done about it, although I think we've seen this before with bing, and a degrading in coverage has occurred just before they do an update with much improved imagery. So fingers crossed that's what is happening.

Harry


________________________________
From: Kate Chapman <kate.chapman at hotosm.org<mailto:kate.chapman at hotosm.org>>
To: Ahasanul Hoque <hoque.ahasan at gmail.com<mailto:hoque.ahasan at gmail.com>>
Cc: "hot at openstreetmap.org<mailto:hot at openstreetmap.org>" <hot at openstreetmap.org<mailto:hot at openstreetmap.org>>
Sent: Monday, 20 April 2015, 14:19
Subject: Re: [HOT] Image not loading !!!! Household level OSM in Bangladesh

Hi Ahasan,

When did you last see imagery in that area? It is my understanding from reading some of the other OSM community mailing lists that the recent Bing maps update has made high resolution imagery for certain areas no longer available.

-Kate

On Sun, Apr 19, 2015 at 11:13 PM, Ahasanul Hoque <hoque.ahasan at gmail.com<mailto:hoque.ahasan at gmail.com>> wrote:

Hi HOT mappers,
Are you facing any problem in loading image in iD/JOSM/Fieldpaper Or its only for my place ?? (https://www.openstreetmap.org/edit?gpx=1915878#map=16/23.7888/90.2280).
I went for a recoinnesasance survey yesterday for piloting the household level mapping for Bangladesh Statistical Bureau. Aftr coming back I wanted to make field paper of that pace but showing total bank. Surprisingly, in iD, and JOSM showing the same.There is no tile in that zoom level !!!!

Can anyone please suggest how I can make the field paper of this place ? It's urgent for me guyz :(

Thanks in advance for your cooperation.

Ahasan

.....................................................................................
Ahasanul Hoque
GIS & Data Mgt Consultant
WSP, The World Bank.
Contact: hoque.ahasan at gmail.com<mailto:hoque.ahasan at gmail.com>; ahasan_17 at yahoo.com<mailto:ahasan_17 at gmail.com> |
Web: ahasanulhoque.com<http://ahasanulhoque.com/>
Skype: ahasan4u | Linkedin: http://tinyurl.com/njg3xsp
Please, Consider the Environment before Printing this Mail !!!


On Sun, Mar 8, 2015 at 10:56 PM, Ahasanul Hoque <hoque.ahasan at gmail.com<mailto:hoque.ahasan at gmail.com>> wrote:
Many thanks Kate. Tomorrow we will have a meeting regarding the piloting, very soon we gonna do that and will update you so.

Best regards

Ahasan



On Sun, Mar 8, 2015 at 9:56 PM, Kate Chapman <kate.chapman at hotosm.org<mailto:kate.chapman at hotosm.org>> wrote:
Hi Ralph,
It depends on the local usage of the data. For example in programs that us InaSAFE to measure the impact of a disaster the buildings are actually turned into points prior to the analysis.
People should map as accurately as they can, but if mapping buildings as points is the best you can do and works for how the data will be used then no problem. If someone else needs outlines they can always "upgrade" the mapping later.
Thanks,
Kate
Kate Chapman
Executive Director
Humanitarian OpenStreetMap Team
email: kate.chapman at hotosm.org<mailto:kate.chapman at hotosm.org>
U.S. mobile: +1 703 673 8834
On Mar 8, 2015 7:06 AM, "AYTOUN RALPH" <ralph.aytoun at ntlworld.com<mailto:ralph.aytoun at ntlworld.com>> wrote:
Hi Kate,

[Mapping the buildings as points is not problem. Often I think we are
[mapping the building outlines because it looks more visually appealing on a
[map than anything else.

The mapping of the shape and size of buildings for HOT is not for visual purposes.

Ivan Gayton of Medicin Sans Frontiers has reported back to us that this is important for their work in certain areas. They use the size of the building to assess the number of occupants (as in the case of round huts for example) or to assess it's use (small round huts are usually grain stores) and also the size and shape gives them reference points for establishing their exact position and orientation on the ground in relation to the map. In some areas we are asked to map the location of large trees and multi-story buildings as prominent reference points (as was the case in mapping the slum area in Dhaka) to establish position amongst the random sprawl of buildings and Pete Masters has reported back that this proved very useful when he was out there.
So, while some people may not have any significant use for the size and shape of the building there are others who will need that sort of data in both rural and urban areas.

Regards

Ralph



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