3D projection on buildings

The opposite of TLS:
http://vimeo.com/4238052

Global Sunscreen Won’t Save Corals

It's not only global warming: ocean acidification is an issue as well:
http://www.ciw.edu/news/global_sunscreen_won_t_save_corals

homeproject

http://www.youtube.com/homeproject
wir haben noch einiges vermessen, wenn alles erledigt, kann man eine künstliche Erde bauen....

K100, where is your pacal now?

I have successfully accomplished this years Kinizsi 100 tour, my time was 22:40. (The limit is 24:00, you have to walk 100 kms.)

We started from "Csillaghegy, HÉV állomás" at 8:00.

There were about 1.200 starters, and about 800 have completed the tour.

(I was quite excited, cause I had problems with my ankle on a previous tour called Gerecse 50. I accomplished that one as well in April, but both of my ankles were aching on the last 14km. And this one was my first try on K100.)

At last I have arrived at the finish ("Tata, Ifjúsági Tábor") at 6:40 the next day.

(Without serious pain or being injured.)

I really enjoyed the walk at night. Calmness everywhere.

It became clear to me, that this is all in the mind, rather than the ankles.

I've never felt closer to the ground, than on the last 7 kms, on my way from the last checkpoint to the finish. The sun already rose, I was walking down the hill listening to birds, and 24 hrs of alertness made its way to my spiritual self.

I always had a dilemma, about how long is "half of a day", should I mean 4 hrs or 8 hrs?

Now I know: it is exactly 11hrs and twenty minutes.

A friend of mine was on holiday with his spouse, and he asked me to feed their cat meanwhile. So, on that given Sunday my first trip after getting the badget and diplom was to their home.

To summarize up, I walked 100 kms to feed a cat.

Catacombs of Rome

http://news.bbc.co.uk/1/hi/world/europe/8027650.stm

(and http://pruned.blogspot.com/2009/05/catacombs-of-rome-in-3d.html )

Galaxy generation

An interesting article here about handling large point clouds:

http://www.infinity-universe.com/Infinity/index.php?option=com_content&task=view&id=106&Itemid=26

Editing coordinates with gawk

If you don't have it yet, download Gawk from here:
http://gnuwin32.sourceforge.net/packages/gawk.htm

After install, you can start gawk from the 'bin' folder.
(Or you may edit the Path environment variable, to access gawk from everywhere.)

Create a new file, named for instance coord.awk

Let us assume we have a file full of coordinates named coord.txt, and it is formatted something like this:
-104097730 256262806 974997
-104100494 256261484 974564
-104103491 256260058 974112
...

Put this little program into coord.awk:

BEGIN{
print "coord.x, cooord.y, coord.z";
};

{
print $1 ", " $2 ", " $3;
}


(Small explanation: the first block simply prints a header, before doing anything.
The second block will run for every row, printing the first three strings in that row, separated by commas. In our case, these strings will be the x, y and z coordinates.)
Now we can make this work with this command:

gawk -f coord.awk coord.txt

(-f tells the awk program is in a file (coord.awk in this case), and we want to run it on coord.txt)
After running this, it will put the result on the screen.
If we would like to store this stuff in a file, we could write:

gawk -f coord.awk coord.txt > newcoord.txt

After this, we'll have the comma separated coordinates with a simple header in a new file.

coord.x, cooord.y, coord.z
-104097730, 256262806, 974997
-104100494, 256261484, 974564
-104103491, 256260058, 974112
...

If that is what you need... but this little program is easy to modify, so you can use it to edit huge files the way you want, creating headers, reformat or edit the coordinates in each row separately, and maybe putting a footer with an 'END' block.)