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 Forum index » Archive » Archive: The Haunted Apiary (Let Op!) » The Haunted Apiary (Let Op!): General/Updates
Axon Mapper v0.1.1
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inio
Decorated


Joined: 24 Jul 2004
Posts: 163
Location: Santa Cruz, CA

Axon Mapper v0.1.1

Try it out!

http://www.inio.org/bees/futureaxons/
    What's new:
    0.1.1:
  • Significatly more responsive while zooming.
  • Elegantly resizes to fit browser window.
  • While panning, a green circle appears at the center of view (to let you aim carefully).
  • Loads low-res imagery (max 4 tiles) first, providing an overview while the appropriate resolution imagery loads.
  • maximum pan speed is higher, and the joystick has a more appropriate acceleration curve.

    Left to do:
  • Include means for resolving multiple axons at the same location
  • Magnifying-glass tool, for easy zooming
  • Multiple axon sets (useful, all cold, futue, etc.)
  • live updating of axons (automatically refresh axon data every 20 minutes).
  • documentation.

    Not gonna happen:
  • Alaska & Hawaii

The axons on the map update every 20 minutes 24 hours a day and have all axons in "active" groups (those that are useful towards getting sound files).

You might be wondering:
- This represents over 800 lines of ActionScript for the tile management and map navigation, and a several dozen more for the gui.
- The complexity is necessitated by the extremely slow execution of Actionscript. Everything I could think of has been reduced to O(lgn) or O(1) through various caching and secondary data structure mechanisms. The only thing that could really be made more efficient is moving the axons around, and that only takes a tiny fraction of the time used.
- Data structures: Tiles are kept in a quadtree. Scrolling visibility updates are done using sorted lists of in-frustum tile midpoints for each axis (one array entry for each unique value, with a linked list hanging off of it, providing O(lgn) insertions and lookups, and O(1) deletions (amortized)). Zooming updates are done using an array of linked lists of in-frustum tiles for each zoom level (O(1) insertions, lookups and deletions).
- The bug that prevented me from releasing this earlier has not been fixed the way I would have liked, but a workaround is in place that prevents it from mattering. (The cause is parent tiles getting child visibility events after their subtree has been hidden. This should be impossible, so I just ignore the event if the tile subtree is hidden)
- some zoom levels of the topo maps are avoided because they produce GIF images instead of JPEGs. Flash doesn't like GIFs.
- The time zone map is borrowed from time.gov.
- geo->utm conversion is done using this code. ActionScript is similar enough to JavaScript that I only had to modify 2 lines of code to get it compiling.
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PostPosted: Thu Sep 16, 2004 7:40 am
Last edited by inio on Sun Feb 26, 2006 1:11 am; edited 4 times in total
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peeveen1
Boot

Joined: 28 Jul 2004
Posts: 51

Man, that is seriously impressive. I hope for your sake that the axon hunting lasts more than another week and a bit! Very Happy

PostPosted: Thu Sep 16, 2004 8:38 am
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ROBOGriff
Decorated


Joined: 20 Aug 2004
Posts: 297
Location: Wherever my hat lays

All I can say is
WHoa! "
Nice work! But all I'm getting is a blank map. It's probably something on my side blocking access or something.

PostPosted: Thu Sep 16, 2004 8:41 am
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mtb_man
Boot

Joined: 31 Aug 2004
Posts: 38
Location: Tasmania

Oh boy, that's most impressive inio.

Excellent effort, you're hard core Cool
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AngriBuddhist wrote:
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PostPosted: Thu Sep 16, 2004 8:42 am
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xnbomb
Unfettered


Joined: 13 Oct 2003
Posts: 660
Location: J302B S8JDC

Re: Axon Mapper v0.1

inio,

inio wrote:
Try it out!

http://www.inio.org/bees/mapper.html

Uh ... um ... Shocked ... I've been rendered temporarily speechless Very Happy .



That is the most elegant online spatial data browsing tool that I have ever seen Cool . I think you could find people and organizations who would be interested in it for displaying the locations of things other than axons (which are terribly important to us, but no so much to the wider world). It's a lovely piece of work, and you should be very proud of it.

Cheers,
xnbomb

P.S. Quadtrees? Very Happy They're not a very popular data structure with GIScience types anymore (many of my colleagues don't even know what they are), but they are very well applied here.
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PostPosted: Thu Sep 16, 2004 11:04 am
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HitsHerMark
Unfictologist


Joined: 22 Aug 2004
Posts: 1521
Location: Austin, TX

That is awsome!

(It only shows one of the Orange County, CA axons but, dude... Just wow.)
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PostPosted: Thu Sep 16, 2004 11:12 am
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Aspmaster
Veteran

Joined: 26 Aug 2004
Posts: 129
Location: 35.074196 -89.91932

Great job inio! Keep up the great work.

Too bad the axon I enhottenated this round isn't on the map(35.074196 -89.91932). Rolling Eyes

PostPosted: Thu Sep 16, 2004 11:17 am
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thebruce
Dances With Wikis


Joined: 16 Aug 2004
Posts: 6899
Location: Kitchener, Ontario

I'm in canada so I can't get my house, but I found a place a bunch of friends and I go every year near niagara falls, and just found another friend's house in NY... that is sweet Smile hehe

definitely see if you can get more imagery up there aside from just the axons!
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PostPosted: Thu Sep 16, 2004 11:25 am
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aliendial
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Joined: 29 Sep 2002
Posts: 3438
Location: Far Far Away. Nowhere Near You. Really.

So does this just show axons not gotten yet? i.e. when we get them the coordinates disappear from the ilovebees page so no dot on your map? Cool.
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PostPosted: Thu Sep 16, 2004 11:51 am
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Blacklotus
Boot


Joined: 31 Jul 2004
Posts: 43

hehe, I can see my house from here! Laughing

impressive work, I love the detail in it.
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PostPosted: Thu Sep 16, 2004 1:31 pm
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Halrandir
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Joined: 02 Sep 2004
Posts: 89
Location: Omaha, Nebraska

Only one word. Incredible!

PostPosted: Thu Sep 16, 2004 2:44 pm
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gilada
Veteran


Joined: 31 Aug 2004
Posts: 73

Wow. I know it's missing all the downtown Dallas Axon's... but wow...

PostPosted: Thu Sep 16, 2004 3:49 pm
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Platonix
Decorated


Joined: 28 Aug 2004
Posts: 174
Location: Keene, New Hampshire

Wow, this is definitely an improvement from the last time I saw this app! I love the continually finer-detailed maps.
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PostPosted: Thu Sep 16, 2004 3:52 pm
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Epic1980
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Joined: 24 Aug 2004
Posts: 140
Location: MO, USA

Seriously, that is Censored amazing!
Although I don't want to do any more axon hunting (I'm hoping this is the last set), if it's not, this is going to help a lot of people!
Way to go!!!

Worshippy Worshippy Worshippy
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PostPosted: Thu Sep 16, 2004 3:52 pm
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Wishi-san
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Joined: 20 Oct 2003
Posts: 602
Location: UK. Southwards.

Gotta add my bit.. This really is beautiful work and better than a professional application I downloaded that cost hundreds to register and was slow as hell at streaming the data.

Fantastic work!
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PostPosted: Thu Sep 16, 2004 3:52 pm
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