Preserved Topic: Planetary Location Map idea ][ (Page 1 of 2)

This discussion got really big... Anyway, the original topic is here: http://www.ozoneasylum.com/Forum1/HTML/001405.html

Let's continue here...



[This message has been edited by mr.maX (edited 04-19-2001).]

I have experience with SQL. I'll be happy to try to help if you need it.

Yep. This is a cool idea. hehe Mad Max, love that siggy =)



Hmm, someone left the lite on.


[This message has been edited by Weadah (edited 04-19-2001).]

Hyperbole, Thanks we will probably need your help!

Whoa! Weadah's already using the map! Cool sig there

I mentioned in the pervious thred that I have some SQL skills, if you want my help just ask..

Yeash Weadah! You live way out there??? And I was beginning to think I was one of the few australians here, turn's out there's quite a few....

Dracusis

Ah, the purpose becomes clear...

Here's an updated version (289K)

It's not finished, not even close. Only general groupings are shown so you can see what this is becoming

if your name isn't in the right place, don't worry, it's not finished.

OK..lets make things really clear.. the place where you pin- point my name its NOT the actual place I'm from. That's not the place where the Survivor 1 .. that place is where the brutality took place...

I'm here, actually...


and thanks for this Idea... at least I can help the GOV of my country to promote .my country to the world...

Love the idea of a planetary location map

- I live in Oslo -

-= Veneficuz =-

The Greatest Illusion is the Illusion of Reality

OK OK! Wow. Iget to quote myself :

quote:

---

if your name isn't in the right place, don't worry, it's not finished.

---

buncha and scattered don't live in Tasmania either...
Shiiizzam quick! A black pill for Rick! LOL.

(You're in venficuz)

[This message has been edited by Allewyn (edited 04-20-2001).]

Are you doing these locations by latitude/longitude (when you place them on the map)?

Seems like the right thing to do would be to have a table of names plus latitude/longitude, then a conversion to scale lat/long into pixel coordinates.

I can do the math if this is what you're going for. If you're just plonking names down, please plonk me by Kansas City Missouri (Central US).

Thanks

OK.. I need 'em.....

Couldn't contribute any supportive ideas for now.. I enjoy my black pills first, I'll think up an idea soon..

Linear,

Yep, seems like long/lat is the right way and we're (well. Doc, buncha, and sorta me) pulling it together. I'll let Doc know you're on-board

Hey Allewyn, I hate to add to the work, but I think it'd be cool to have a timezone overlay. I'd be happy to help out too.

Hey silence! Glad ya stopped by again. Sounds good and wouldn't take too much I believe. Not sure which direction it's going right now, I think it's turning into a DB! When we have the final image, maybe you could add the layer if we don't have it yet?

Here's something that got tossed around

[This message has been edited by Allewyn (edited 04-22-2001).]

I am right here

--brokensig of [peer]--

The PARC server is pretty cool huh! Maybe we'll have something like that too <grin>
But you didn't put a mark on it; we'll just put you near Ottowa...

Just wanted to bring this bacvk up in case there are any others wanting to get on the map (yes we're still workin on it) ;p

allewyn - this is still freaking me out - i went to that xerox world map place a fwe months ago when i was kicking off this project!

___________________
b u n c h a p i x e l s

FYI, I really AM from the middle of nowhere

Just to jump back up the tread a bit, but the idea of a timezone layover is good, especially as it could be used to help the search prog to narrow it down. There are only a certain number of towns adn cities inside a given time zone. Another possibility is that the program could capture the computer time off your PC, compare it to grenwich mean time and use it to get your EXACT timezone, give or take 10 minutes or so, thus narrowing it down even further.




Computer Senility. I had a friend once who had it. His name was Gilbert, but he prefered it if people called him 'Ramases Niblick the third...Kerplunk, Kerplunk, Whoops! Wheres my thribble?'... - Kryton, Red Dwarf.

Don't forget little old me over here in Kansas!

silence, you were born on a ship? cool!

OK, I have something I'm working on, at http://www.johannilson.com/test.html - I'm doing this for Johan, and I also have interest from Toshiba to do the same thing for them for money (woo!), and I will be porting this to the Asylum this weekend. If you look over the script, you'll see that I am calculating longitude and latitude, and the LONG part works great, quite simple, but the LAT aspect has me stumped! There's a bizarre formula for calculating where a coordinate might be in the Mercator projection (which I'm using), and I can't for the life of me figure it out. Anyone feel up to tackling this issue? It's a stumper, I've found pages with the formula, but I quite frankly... don't understand it.

Your pal, -doc-

Absolutely. Doc, if you post the link to the stuff you have, I'll whack it into shape for you straight out.

Buncha, great minds think alike huh? (Ooops that should be in the sayings thread!)

Krets, gosh Anutie Em there's no place like home!

Doc, that's really sweet! Is there a working version. I seem to remember one you had that would accept coordinate changes...

All right Doc, and fellow cartographers, here's my contribution.

Assuming Mercator projection, and assuming the Earth is spherical, and assuming the map extent is between the 80 degree latitude lines, this should translate your latitude and longitude to x,y with the origin in upper left for any map size (aspect ratio should be 1.288 for the 80 degree extents):

<SCRIPT type="text/javascript">

function latitude2y(lat, height) {
//** this assumes 80 degree map extents !!
with (Math) {
// convert to radians
var latRadians = lat*PI/180
// the actual Mercator transformation
// log() is natural log in JS
northing = log(tan((PI/4) + (latRadians/2)))
}
// then scale to our coordinate system
// with the origin in the upper left
// 4.872 is the distance between the 80 degree
// lines, unscaled [2*ln(tan(pi/4 + 80deg/2))]
return( height/2 + northing * (height/4.872))

}

function longitude2x(longitude, width){
with (Math) {
// convert to radians
var longRadians = longitude*PI/180
// the actual Mercator transformation
// quite boring for longitude, eh?
easting = longRadians
}
// then scale to our coordinate system
// with the origin in the upper left
// 6.283 is 2*pi (circumference in radians)
return( width/2 + easting * (width/6.283))
}

</SCRIPT>

Hope this helps.

edit: added missing parens around (Math)


[This message has been edited by linear (edited 05-12-2001).]

A couple notes, first, no way is that map that's been getting used a Mercator projection. You can tell from the aspect ratio. Second, I wrote the math stuff assuming the Earth is spherical. If anyone wants to do the error calculation for that, step right up, but I figured that in the small number of pixels we're using the error was not significant (hell, kretsminky's name is 1000 miles long).

Allewyn, you launced this, are you married to that map? Cause no telling what the projection used was.

Cool idea,

Toronto, Canada




sashaDesign

Grumble: No, I was born on an island about ten degrees south of the equator: Samoa

Now, I go to school in Seattle, which is two degrees south of insanity

Nope, not married to it. First attempt, based on the image presented in another thread. Both Doc and Buncha have alternates that will work and I think Doc's will do the most for the bucks we're paying him.

These are the lat/long coordinates of those I know so far. If yours is wrong (that is, if you really care it's alittle off) let me know):
NYC-Central Park (S) 40° 47' N 73° 58' W warmage, jestah (approximate, no LI listed)
Newark NJ AP 40° 42' N 74° 10' W butcher, (approximate)
Grants Pass, OR 42° 26' N 123° 19' W allewyn
Los Angeles AP (S) 33° 56' N 118° 24' W bugimus (approximate)
Honolulu AP 21° 20' N 157° 55' W velvetrose approximate, couldn't find Lahaina)
Mobile Ala AP 30° 41' N 88° 15' W shiiizam (approximate)
Duluth Minn AP 46° 50' N 92° 11' W JakeB, Prezmonty, ladydiva (approximate for all)
Boston MA AP 42° 22' N 71° 2' W slime (approximate)
Seattle WA (S) 47° 39' N 122° 18' W silence
Cleveland Co 39° 9' N 84° 31' W ducati
Houston Co 29° 59' N 95° 22' W boudga, docilebob
Green Bay AP 44° 29' N 88° 8' W cyoung
Baltimore Co 39° 20' N 76° 25' W eyezear
Salt Lake City AP (S) 40° 46' N 111° 58' W quarath (approximate)
Kansas City AP 39° 7' N 94° 35' W mobrul
Charlotte AP 35° 13' N 80° 56' W metahedron
South Bend AP 41° 42' N 86° 19' W hyperbole
Green Bay AP 44° 29' N 88° 8' W babamba
Edmundston New Brunswick 47° 22' N 68° 20' W elGrande
Toronto Ontario 43° 41' N 79° 38' W underdog, la'dsasha
Madrid 40° 25' N 3° 41' W jorgito
Berlin 52° 27' N 13° 18' E u-neek
Belgrade 44° 48' N 20° 28' E mr. max
Jedda UAE 21° 28' N 39° 10' E timothymcnulty* (Dubai wasn't listed on the map systems I looked up)
Kuala Lumpur 3° 7' N 101° 42' E rick
Stockholm 59° 21' N 18° 4' E Doc, nimraw, zox* (Zox approximate)
Oslo 59° 56' N 10° 44' E veneficuz
Brisbane 27° 28' S 153° 2' E dracusis
Sydney 33° 52' S 151° 12' E scattered, bunchapixels, weadah* (wead approximate)
Copenhagen 55° 41' N 12° 33' E mahjga* (approximate since you just said denmark)
London 51° 29' N 0° 0' W qlmpnr
Little Rock AR 34° 44' N 92° 14' W St. Seneca (approximate)
Kansas City AP 39° 7' N 94° 35' W linear, krets

Hey, Allewyn, I guess I should mention this little program called xearth, which will not only puke out a Mercator projection for you, but will drop in labels gin a tagfile that looks a LOT like the list you complied. Runs under X by default but I ran a Windows port of it that works just like the X version.

It may drastically reduce the work (and the fun).

Here's a web wrapper around it also if you want to test drive it

Uh, that suckfree site won't come up and the zip download for xearth (Win) wouldn't start. Can you check it out and let me know if it's working? I'd like to play with that SW.

Erratum: my name is mahjQa and I live in Holland. (that small country inbetween belgium, germany and England)

Allewyn, let me know if you can't d/l the windoze port--I'll post it on my site. Only 179K.
The wrapper site worked for me both before and after I posted it.



[This message has been edited by linear (edited 05-13-2001).]

Yeah well, i guess there were net-related problems. Downloaded ok this time! Thanks...

The marker file wants to be in this format:

42.33 -71.08 "Boston, MA" # USA

clarification: negative lat is south negative long is west
Do you have a spreadsheet with those location compiled??


[This message has been edited by linear (edited 05-13-2001).]

Hey put me on the map!

São Paulo, Brazil.

bms - i do really rock!