Hi Ray,
I think the only reason my mapping tips page hasn't made it anywhere
else is because I haven't finished it yet and I was sort of waiting
until it got done and was given a final once over by everyone to make
sure I am not pointing out anything incorrectly before sharing it widely
as a resource. I have most of the data for the remaining sections so the
rest should go pretty quickly.
I have been spending most of my time on validating and trying to help
with a data import which is almost done and then I can finish up the
tips page(s) and get them somewhere easier to find.
cheers
Blake
On 11/4/2014 4:27 PM, Ray Kiddy wrote:
On Tue, 04 Nov 2014 20:59:57 +0000
Michel Gilbert<[email protected]> wrote:
Hi Ian,
I found this page:
http://wiki.openstreetmap.org/wiki/User:Bgirardot/West_African_HOT_Mapping_Tips
that is created by BGirardot that provides good tips helping to
understand the context for mapping West Africa in terms of features.
As an uninitiated HOT mappers I would need more of these.
Michel
It seems an obvious suggestion that a link to the page above could
appear on the page which some of the Instructions are linking to:
https://wiki.openstreetmap.org/wiki/2014_West_Africa_Ebola_Response
Obviously BGirardot's brain is not automatically hooked to all the wiki
pages it should be hooked up with, more's the pity. :-)
And this whole discussion could tie into the thread on the list:
"Video that Best Represents Our Work?"
This thread seems to end up discussing ways to use video to help teach
mappers how to do better mapping.
This may be a good time for a straw-man catalog/training tool to appear
on the wiki.
- ray
On Tue Nov 04 2014 at 1:27:33 PM<[email protected]> wrote:
I agree wholeheartedly with Ray. It would be very helpful to have a
page of examples of W. Africa satellite imagery showing, 1)
buildings that are often overlooked by mappers, especially the less
experienced ones, because they may not look like buildings to the
uninitiated, and; 2) things that are often mistaken for buildings,
but aren't. This catalog could be even more useful if further
broken down by areas/countries whose structures differ somewhat, as
well as by typical rural vs urban structures.
If s/he has neither visited these countries nor studied their
cultures, a mapper's working at a distinct disadvantage without
such examples. I've spent some time looking at photos online of
traditional buildings in this part of the world to try to improve
my mapping, but these shots are taken from ground level, of course.
And as Ray points out, it's a completely different experience when
viewing them from a satellite's POV.
-Ian
On 11/4/2014 at 3:03 AM, "Ray Kiddy"<[email protected]> wrote:
On Tue, 4 Nov 2014 09:51:54 +0100
Claire Halleux<[email protected]> wrote:
Hi Ray,
For cassava, you could add something on the following page I
guess:
https://wiki.openstreetmap.org/w/index.php?title=Tag:crop%3Dcassava
If you intend to use a screenshot of imagery, make sure you keep
the copyright visible. We got permissions to do so from MapBox,
HIU and Bing, for training purposes.
Cheers
Claire
I am not explaining myself well. The page you are pointing to has a
picture of casava taken from the ground. This does not help me
identify anything if I am looking at casava in a photo taken from a
satellite.
How does one recognize a mound of casava in Liberia? Or a yurt in
Mongolia? Or a well in Pakinstan? From satellite imagery? Does a
well in Pakistan look like well in Montana? Probably not. So, when
one has no experience with an area of the world, how can one
identify its structures? One way is to look at a bunch of satellite
imagery and keep asking questions, over and over. Or, perhaps
pictures of differently shaped structures can be pulled out which
identifies different structures and describes where they appear.
Like a catalog.
So, is there some catalog of satellite imagery that will show what
things look like in various places, for training purposes? Or would
there be suggestions on how to create one and where it could be?
thanx - ray
On Tue, Nov 4, 2014 at 2:58 AM, Ray Kiddy<[email protected]>
wrote:
On Tue, 4 Nov 2014 09:16:50 +0800
maning sambale<[email protected]> wrote:
To me, it looks like building=construction (the dividing
walls are visible). Nearly the same as what I've seen on the
ground in Malawi, Africa.
If you're unsure, just tag it as building=yes.
Is there a place on a wiki to place pictures that can be
examined to learn to recognize some of the local structures? A
catalog that shows how different things appear in different
places?
I have had similar questions. I had a pic and the round
honeycomb looking things were identified as casava plants
growing in bunches in Liberia. Is there a logical place on one
of the wikis, a sort of image catalog, where I could add this
pic and mark it with "Casava plant, Liberia, resolution of
image = x"?
I was editing in "#479 Tharparkar Drought, Sindh, Pakistan", and
some of this stuff could have been on the moon. I just have no
context to figure out the shapes of houses, what wells look like
(just like houses?) and so on.
A catalog of the structure types one might find in, for
example, the deserts of Pakistan might be helpful.
We could me mapping in Mongolia and I am also not going to know
what a yurt looks like from above. Same thing.
I went to the wiki and did a search, for example, on Pakistan
and got back, as you might expect, the page on Pakistan. This
page does not show me, however, how the different types of
houses there may appear in imagery.
I can, of course, start something, and will. I just wanted to
see if there are suggestions from you all first.
thanx - ray
On Tue, Nov 4, 2014 at 8:41 AM, Warren Roberts
<[email protected]> wrote:
Does anyone have an idea if these are walls for building
(without roof) .. there are many and in Sierra Leone. Wanted
to identify them ether to digitize them as buildings. Thanks
[image: --]
Warren Roberts
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