Re: New Developer Locations map available

2007-08-04 Thread James Treacy
On Sat, Aug 04, 2007 at 10:17:24AM +0200, Andreas Barth wrote:
> In the default view, I think we have too few markers - at least in the
> area I could judge it, that is Europe (it really looks like we only have
> a few people there, whereas with the old map, you can get a good
> impression where the debian-dense is higher).

I have upped the number of partitions in the grid. It looks much
better (especially North America and Europe). Let me know if you think
it is too slow.

-- 
James Treacy
[EMAIL PROTECTED]


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]



Re: New Developer Locations map available

2007-08-04 Thread Holger Levsen
Hi,

On Saturday 04 August 2007 14:05, James Treacy wrote:
> Without clustering the map is too slow to be usable. 

Speaking of unusable, I'd appreciate if a png version of the map is created 
too, as I usually have javascript disabled.


regards,
Holger


pgp1CbMrOuv1U.pgp
Description: PGP signature


Re: New Developer Locations map available

2007-08-04 Thread Andreas Barth
* James Treacy ([EMAIL PROTECTED]) [070804 14:05]:
> On Sat, Aug 04, 2007 at 10:17:24AM +0200, Andreas Barth wrote:
> > In the default view, I think we have too few markers - at least in the
> > area I could judge it, that is Europe (it really looks like we only have
> > a few people there, whereas with the old map, you can get a good
> > impression where the debian-dense is higher).
> 
> Without clustering the map is too slow to be usable. The clustering
> algorithm creates a grid and uses the large marker whenever there
> are more than a (configurable) number of markers in a square. I'll
> try refining the grid a bit and upping the number per grid to see
> what happens. For usablility, the goal is to keep less than about 150
> markers on the screen at a time.
> 
> One idea I had was to overlay the number of people represented by a marker
> to the center of the marker.

I agree that clustering is a good idea.

However, it might be usefull to e.g. say "a cluster can at maximum be 50
(or 30?) developers" or so - just to make sure we don't get too few
points on parts of the map with many developers (it works quite well if
one is not on the "view the world"-size). I think that even the first
map should give you a good graphical impression of the geographically
distribution of Debian. (It would become better if the clusters could be
of different size depending on the numbers.)



> > The other issue I have is that the data is too detailed in lots of cases
> > -  one can easily spot which place exactly certain DDs live (I don't
> > have a personal issue with this though, because I just gave the
> > coordinates of the town I live in which isn't secret anyways).
> 
> Is this really a concern? All the public knows is that an anonymous DD
> lives within 1km of that spot (actually about .7km east-west at 45 deg
> N or S).

Well, I wouldn't like it for my data - but my data is inaccurate by way
more anyways :)), so I don't mind too much for the map.


Cheers,
Andi
-- 
  http://home.arcor.de/andreas-barth/


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]



Re: I feel to complain again

2007-08-04 Thread Runa Agate Sandvik
On Sat, Aug 04, 2007 at 12:02:04PM +0200, [EMAIL PROTECTED] wrote:
> So, I feel to complain again, especially to changes in the index.wml.

I have no idea what you're complaining about. Care to update me?

- Runa


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]



Re: New Developer Locations map available

2007-08-04 Thread James Treacy
On Sat, Aug 04, 2007 at 10:17:24AM +0200, Andreas Barth wrote:
> In the default view, I think we have too few markers - at least in the
> area I could judge it, that is Europe (it really looks like we only have
> a few people there, whereas with the old map, you can get a good
> impression where the debian-dense is higher).

Without clustering the map is too slow to be usable. The clustering
algorithm creates a grid and uses the large marker whenever there
are more than a (configurable) number of markers in a square. I'll
try refining the grid a bit and upping the number per grid to see
what happens. For usablility, the goal is to keep less than about 150
markers on the screen at a time.

One idea I had was to overlay the number of people represented by a marker
to the center of the marker.

> The other issue I have is that the data is too detailed in lots of cases
> -  one can easily spot which place exactly certain DDs live (I don't
> have a personal issue with this though, because I just gave the
> coordinates of the town I live in which isn't secret anyways).

Is this really a concern? All the public knows is that an anonymous DD
lives within 1km of that spot (actually about .7km east-west at 45 deg
N or S).

-- 
James Treacy
[EMAIL PROTECTED]


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]



Re: New Developer Locations map available

2007-08-04 Thread James Treacy
On Sat, Aug 04, 2007 at 01:42:23PM +0800, Anthony Wong wrote:
> On 04/08/07, James Treacy <[EMAIL PROTECTED]> wrote:
> 
> I like it very much, it is so cool. Personally I have been trying to
> do the same thing but had been stuck at the clustering problem. I've
> tried yours, initially markers are clustered well, but after a few
> zoom in and out and panning, the clustering fails to work, and then
> lots of red markers are shown instead, causing my browser to grind to
> a halt.

I was considering creating my own clustering algorithm until I
stumbled upon http://www.acme.com/javascript/#Clusterer

>From my tests, the only time the clustering doesn't work properly is
when the view crosses the international date line. If you zoom out all
the way (multiple views of the earth are present) you will notice that
Google maps only displays markers in the center area.

> I'd also like developer names to be shown for the markers too, but
> people will start to think about the privacy issues... and currently
> db.debian.org doesn't report developers' coordinates to the general
> public, doing so may require some kind of changes...

This was discussed when the developer db was originally created. As
with all things debian, there were a few people with strong (extreme?)
views about privacy and in the end a very conservative approach was
taken. Thus we have anonymous markers rounded to .01 degrees, which
works out to about 1km accuracy at the equator.

-- 
James Treacy
[EMAIL PROTECTED]


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]



I feel to complain again

2007-08-04 Thread wojtekz
Hi mainteners of Debian pages,

Jens Seidel pisze:

> The person which changed this in english/ should change this for all
> translations as well. This reduces the amount of time investigated.

So, I feel to complain again, especially to changes in the index.wml.

Regards
Wojciech Zareba


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]



Re: New Developer Locations map available

2007-08-04 Thread Andreas Barth
* James Treacy ([EMAIL PROTECTED]) [070804 03:51]:
> Having never been keen on the Debian Developer Locations map(*), I
> decided it was time to create something better. Please take a look at
> http://people.debian.org/~treacy/developer-locations.html
> I'd like to hear what others think of it.

> The cool thing about this is that it uses google maps so it allows
> you to zoom in on areas you are interested in. Notice how clustering
> reduces the number of markers in areas of high concentration of
> developers (necessary or the map is too slow). As you zoom in the
> density decreases and fewer markers are visible on the screen so more
> are displayed.

In the default view, I think we have too few markers - at least in the
area I could judge it, that is Europe (it really looks like we only have
a few people there, whereas with the old map, you can get a good
impression where the debian-dense is higher).


> Of course, being able to zoom in makes mistakes in the data more
> obvious. In particular, there are a number of people who claim to
> live in the water. To be fair, some of those near the coast may have
> entered a correct location but rounding has placed them on the wrong
> side of the coastline.

The other issue I have is that the data is too detailed in lots of cases
-  one can easily spot which place exactly certain DDs live (I don't
have a personal issue with this though, because I just gave the
coordinates of the town I live in which isn't secret anyways).


Cheers,
Andi
-- 
  http://home.arcor.de/andreas-barth/


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]