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March 1997

Linear Quadtrees Carter T Shock
- Linear Quadtrees gzhang1234@yahoo.com
q-tree stuff Chris Gray
- q-tree stuff Carter T Shock
- - q-tree stuff coder@ibm.net
    
    On 02/03/97 at 11:34 PM, "Carter T Shock" <ctso@umiacs.umd.edu> said:
    
    >Whew. Bit of honesty here.. I am completely new to PC's, windoze, MIME
    >et. al. Got my first ever PC about a month ago. Eunuchs rules :) >
    
    I don't envy you. The PC world is not a pretty one. The more I dig away
    from it, the better I end up liking it.
    
    >One huge advantage of qtrees over rtrees is that a spatial join is very
    >efficient. Qtrees are like binary trees where every node in the tree is
    >itself a qtree; rtrees don't have this property (since they tend to be
    >built like B-Trees). This means that you can take some chunk of one
    >quadtree, offset it to the coordinates of another quadtree and then merge
    >the two structures fairly easily and quickly. Generally with rtrees this
    >forces a rebuild. One potential application is a hunk of the world that
    >moves around, toting it's contents with it. Another interesting
    >side-effect is the dimensional porthole bit... you can have several
    >spaces indexed by different qtrees that may at one time or another share
    >some nodes. Where and when they intersect defines the porthole :)
    
    While I'm still working on the representational details, this would appear
    to also be fairly easy (if not as trivial) to do with an R*-Tree given the
    ability for a bounded reagion to redefine its coordinate system. Once
    that is done, the problem of translocating or even sharing the region then
    just becomes a problem of moving or cross-linking the root node of the
    bounded region. Allowing redefinition of the coordinate system has other
    advatnages, such as allowing TARDIS-like objects, geometric
    inconsistancies, accurate representations of mobious strips (and even
    klein bottles?), and heck, were you even so persuaded, multiple full
    spherical planetary surfaces, worlds within worlds (ala Pelucidar), the
    old crystal spheres concept etc
    
    --
    J C Lawrence Internet: claw@null.net
    ----------(*) Internet: coder@ibm.net
    ...Honourary Member of Clan McFud -- Teamer's Avenging Monolith...
Issues from the digests and Wout's list Alex Oren
- Issues from the digests and Wout's list coder@ibm.net
- Issues from the digests and Wout's list coder@ibm.net
- Issues from the digests and Wout's list coder@ibm.net
- Issues from the digests and Wout's list clawrenc@cup.hp.com
- - Issues from the digests and Wout's list Nathan Yospe
  - - Issues from the digests and Wout's list Shawn Halpenny
    - - Issues from the digests and Wout's list Nathan Yospe
      - Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list clawrenc@cup.hp.com
      - Issues from the digests and Wout's list clawrenc@cup.hp.com
      - Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list clawrenc@cup.hp.com
    - Issues from the digests and Wout's list clawrenc@cup.hp.com
    - - Issues from the digests and Wout's list Adam Wiggins
      - Issues from the digests and Wout's list coder@ibm.net
        Issues from the digests and Wout's list Chris Gray
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Miroslav Silovic
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Miroslav Silovic
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list Caliban Tiresias Darklock
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Caliban Tiresias Darklock
        Issues from the digests and Wout's list Miroslav Silovic
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Caliban Tiresias Darklock
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Caliban Tiresias Darklock
        Issues from the digests and Wout's list coder@ibm.net
        Issues from the digests and Wout's list Miroslav Silovic
        Issues from the digests and Wout's list Jon A. Lambert
        Issues from the digests and Wout's list Ling
    - Issues from the digests and Wout's list Adam Wiggins
    - - Issues from the digests and Wout's list clawrenc@cup.hp.com
      - Issues from the digests and Wout's list Adam Wiggins
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Adam Wiggins
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Adam Wiggins
- Issues from the digests and Wout's list Shawn Halpenny
- - Issues from the digests and Wout's list clawrenc@cup.hp.com
  - - Issues from the digests and Wout's list Nathan Yospe
    - - Issues from the digests and Wout's list clawrenc@cup.hp.com
      - Issues from the digests and Wout's list Shawn Halpenny
    - Issues from the digests and Wout's list Chris Gray
    - - Issues from the digests and Wout's list Ling
      - Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Chris Gray
        Issues from the digests and Wout's list Nathan Yospe
        Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jon A. Lambert
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list S001GMU@nova.wright.edu
        Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list Travis Casey
        Issues from the digests and Wout's list Nathan Yospe
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list Nathan Yospe
        Issues from the digests and Wout's list Jon A. Lambert
        Issues from the digests and Wout's list Adam Wiggins
        Issues from the digests and Wout's list Ling
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Adam Wiggins
        Issues from the digests and Wout's list Adam Wiggins
    - Issues from the digests and Wout's list Orion Henry
    - - Issues from the digests and Wout's list clawrenc@cup.hp.com
  - Issues from the digests and Wout's list Ling
  - - Issues from the digests and Wout's list Shawn Halpenny
    - - Issues from the digests and Wout's list Nathan Yospe
      - Issues from the digests and Wout's list Jeff Kesselman
    - Issues from the digests and Wout's list clawrenc@cup.hp.com
    - - Issues from the digests and Wout's list Chris Gray
      - Issues from the digests and Wout's list Jon A. Lambert
      - Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list Jon A. Lambert
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jeff Kesselman
- Issues from the digests and Wout's list Chris Gray
- Issues from the digests and Wout's list Chris Gray
- Issues from the digests and Wout's list Adam Wiggins
- Issues from the digests and Wout's list Jeff Kesselman
ListMail dupes coder@ibm.net
Threads, IO handling, and Event Queues Nathan Yospe
- Threads, IO handling, and Event Queues Chris Gray
- - Threads, IO handling, and Event Queues coder@ibm.net
  - Threads, IO handling, and Event Queues Carter T Shock
  - - Threads, IO handling, and Event Queues Nathan Yospe
    - Threads, IO handling, and Event Queues claw@null.net
- Threads, IO handling, and Event Queues coder@ibm.net
mud grammar (was Just a bit of musing) Carter T Shock
- mud grammar (was Just a bit of musing) Nathan Yospe
- mud grammar (was Just a bit of musing) Chris Gray
- mud grammar (was Just a bit of musing) claw@null.net
- - mud grammar (was Just a bit of musing) Chris Gray
  - - mud grammar (was Just a bit of musing) claw@null.net
    - - mud grammar (was Just a bit of musing) Chris Gray
mud grammar Carter T Shock
- mud grammar Nathan Yospe
- - mud grammar Alex Oren
  - - mud grammar Nathan Yospe
- mud grammar Adam Wiggins
- mud grammar Chris Gray
Just a bit of musing (VRML) Dmitri Kondratiev
- Just a bit of musing (VRML) claw@null.net
Room coding Nathan Yospe
- Room coding Furball
command parsing Chris Gray
- command parsing Adam Wiggins
- command parsing claw@null.net
Room coding S001GMU@nova.wright.edu
- Room coding Chris Gray
Resets and repops Furball
- Resets and repops claw@null.net
- Resets and repops Jon A. Lambert
- - Resets and repops claw@null.net
  - - Resets and repops Nathan Yospe
    - - Resets and repops Jon A. Lambert
      - Resets and repops Nathan Yospe
        Resets and repops claw@null.net
        Resets and repops Adam Wiggins
        Resets and repops Nathan Yospe
        Resets and repops Adam Wiggins
        Resets and repops Nathan Yospe
        Resets and repops Chris Gray
        Resets and repops Chris Gray
        Resets and repops Adam Wiggins
        Resets and repops Travis Casey
        Resets and repops Chris Gray
        Resets and repops Adam Wiggins
        Resets and repops Shawn Halpenny
        Resets and repops Jeff Kesselman
        Resets and repops Chris Gray
        Resets and repops Nathan Yospe
        Resets and repops Jon A. Lambert
        Resets and repops Nathan Yospe
        Resets and repops claw@null.net
        Resets and repops claw@null.net
        Resets and repops claw@null.net
      - Resets and repops claw@null.net
      - Resets and repops Nathan Yospe
        Resets and repops Adam Wiggins
        Resets and repops claw@null.net
        Resets and repops Adam Wiggins
        Resets and repops claw@null.net
        Resets and repops Nathan Yospe
        Resets and repops claw@null.net
    - Resets and repops Jon A. Lambert
  - Resets and repops Furball
- Resets and repops Chris Gray
- - Resets and repops Adam Wiggins
  - - Resets and repops claw@null.net
    - - Resets and repops Adam Wiggins
      - Resets and repops claw@null.net
      - Resets and repops Chris Gray
      - Resets and repops claw@null.net
        Resets and repops Adam Wiggins
        Resets and repops claw@null.net
        Resets and repops Adam Wiggins
        Resets and repops claw@null.net
        Resets and repops S001GMU@nova.wright.edu
        Resets and repops coder@ibm.net
        Resets and repops S001GMU@nova.wright.edu
        Resets and repops clawrenc@cup.hp.com
        Resets and repops S001GMU@nova.wright.edu
        Resets and repops Chris Gray
        Resets and repops Nathan Yospe
        Resets and repops claw@null.net
      - Resets and repops Nathan Yospe
      - Resets and repops Adam Wiggins
        Resets and repops Nathan Yospe
        Resets and repops Adam Wiggins
        Resets and repops Nathan Yospe
        Resets and repops Chris Gray
        Resets and repops Nathan Yospe
        Resets and repops Chris Gray
        Resets and repops Adam Wiggins
        Resets and repops Chris Gray
        Resets and repops claw@null.net
        Resets and repops lhulbert@czn.com
        Resets and repops claw@null.net
        Resets and repops Chris Gray
        Resets and repops claw@null.net
        Resets and repops Adam Wiggins
        Resets and repops Chris Gray
- Resets and repops Chris Gray
- Resets and repops claw@null.net
- Resets and repops claw@null.net
- Resets and repops claw@null.net
mud grammar claw@null.net
- mud grammar Nathan Yospe
- - mud grammar claw@null.net
List software claw@null.net
- List software Nathan Yospe
- List software Chris Gray
- List software claw@null.net
- List software claw@null.net
I got your message..! MAYA DASWANI
3D graphics claw@null.net
Sorry for the dups (again) coder@ibm.net
mud grammar Jon A. Lambert
- mud grammar claw@null.net
- - mud grammar Nathan Yospe
  - - mud grammar coder@ibm.net
    - - mud grammar Nathan Yospe
      - mud grammar Chris Gray
      - mud grammar claw@null.net
EVOLUTION response claw@null.net
- EVOLUTION response Jon A. Lambert
- - EVOLUTION response claw@null.net
Garbage Collector Artur 'Revinor' Biesiadowski
A perspective out of time - the mudreport document Nathan Yospe
- A perspective out of time - the mudreport document claw@null.net
Old missing posts from old list coder@ibm.net
Execution Chris Gray
- Execution Nathan Yospe
- Execution Furball
- - Execution Jeff Kesselman
  - Execution Chris Gray
- Execution Cynbe ru Taren
Mixture Furball
- Mixture Adam Wiggins
- - Mixture Travis S Casey
  - - Mixture Adam Wiggins
    - Mixture Nathan Yospe
  - Mixture Furball
  - - Mixture Adam Wiggins
    - - Mixture Furball
      - Mixture Adam Wiggins
        Mixture Furball
        Mixture coder@ibm.net
        Mixture coder@ibm.net
    - Mixture Nathan Yospe
  - Mixture claw@null.net
  - - Mixture Adam Wiggins
    - - Mixture claw@null.net
      - Mixture Adam Wiggins
        Mixture Jon A. Lambert
- Mixture claw@null.net
- Mixture claw@null.net
- Mixture claw@null.net
- Mixture S001GMU@nova.wright.edu
- - Mixture Adam Wiggins
  - Mixture Furball
- Mixture claw@null.net
- - Mixture Nathan Yospe
  - Mixture Jon A. Lambert
Resets and repops (a really short post) claw@null.net
- Resets and repops (a really short post) Nathan Yospe
- - Resets and repops (a really short post) claw@null.net
  - - Resets and repops (a really short post) Adam Wiggins
    - - Resets and repops (a really short post) claw@null.net
      - Resets and repops (a really short post) Nathan Yospe
    - Resets and repops (a really short post) Nathan Yospe
Resets and repops (a really short post) <= hah! Chris Gray
VT100 codes ... Khanone@aol.com
VT102 codes Adam Wiggins
- VT102 codes Adam Wiggins
- - VT102 codes Adam Wiggins
Dupes coder@ibm.net
Efficiency Chris Gray
Event Handling Nathan Yospe
- Event handling Shawn Halpenny
- - Event handling Vadim Tkachenko
  - Event handling Maddy
A brief introduction.. ok, you got me: an introduction Greg Munt
- A brief introduction.. ok, you got me: an introduction Adam Wiggins
- A brief introduction.. ok, you got me: an introduction coder@ibm.net
Greetings. :) Michael Hohensee
- Greetings. :) claw@null.net
- - Greetings. :) Nathan Yospe
  - Greetings. :) Michael Hohensee
  - - Greetings. :) coder@ibm.net
    - - Greetings. :) Nathan Yospe
      - Greetings. :) Chris Gray
        Greetings. :) coder@ibm.net
        Greetings. :) Chris Gray
        Greetings. :) Nathan Yospe
        Greetings. :) Jeff Kesselman
        Greetings. :) Chris Gray
        Greetings. :) Greg Munt
        Greetings. :) Jon A. Lambert
        Greetings. :) Nathan Yospe
        Greetings. :) clawrenc@cup.hp.com
        Greetings. :) Furball
        Greetings. :) Chris Gray
        Greetings. :) clawrenc@xsvr1.cup.hp.com
      - Greetings. :) Shawn Halpenny
      - Greetings. :) Jeff Kesselman
        Greetings. :) Shawn Halpenny
        Greetings. :) Jeff Kesselman
        Greetings. :) Shawn Halpenny
        Greetings. :) Jon A. Lambert
        Greetings. :) Jeff Kesselman
        Greetings. :) Shawn Halpenny
        Greetings. :) Jon A. Lambert
        Greetings. :) clawrenc@cup.hp.com
- Greetings. :) Jeff Kesselman