GeoHex
               @sa2da #geohex
               http://geohex.net/

2010   9   6
What’s GeoHex?



2010   9   6
Hex-Mapping Pattern




2010   9   6
GeoCoding System




2010   9   6
Covering for all locations
                  on GoogleMaps.




2010   9   6
Why GeoHex?


                            VS


               Not GeoHex        GeoHex

2010   9   6
01


                 Cool interface
                          match for geogames




               not cool
            ...
02

               Equal in distance with
                     adjoinings




               1 : 1.41        1:1
2010   9 ...
03


                Similar to round shape




               large crack   small crack
2010   9   6
04

               Flexible size in many ways
                         linked with GoogleMaps’ zoom scale




            ...
05


               Short codeing system




               20 byte
                           3 - 11 byte
2010   9   6
06


                      Easy to calculate distance




               function getDistance(_x1,_y1, _x2,_y2)
          ...
07


                Easy to share route data




                35.661960,139.697900
                                   ...
08


                   Save privacy
                                    ex) for




                                     ...
GeoHex for what?




2010   9   6
01


                     Map tiles for geogames




               kokogiko                  sa2da




2010   9   6
02

               Easy mehod substitute
                  for round search




2010   9   6
03


               Search system at degrees




2010   9   6
04


               For statistic systems




2010   9   6
05



               Search system along tracks




2010   9   6
06

                       Step-counting system
                         for GPS tracking


                       11/40

...
How to use GeoHex




2010   9   6
GeoHex is Open-Project

                 Creative Commons License




2010   9   6
Several libraries are provided


                                             Perl
                                       ...
URL: http://geohex.net
2010   9   6
GeoHex
               Contact:
                   @sa2da #geohex
                   sa2da@geohex.net




2010   9   6
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About GeoHex

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About GeoHex

  1. 1. GeoHex @sa2da #geohex http://geohex.net/ 2010 9 6
  2. 2. What’s GeoHex? 2010 9 6
  3. 3. Hex-Mapping Pattern 2010 9 6
  4. 4. GeoCoding System 2010 9 6
  5. 5. Covering for all locations on GoogleMaps. 2010 9 6
  6. 6. Why GeoHex? VS Not GeoHex GeoHex 2010 9 6
  7. 7. 01 Cool interface match for geogames not cool So Coooooooooool!!! 2010 9 6
  8. 8. 02 Equal in distance with adjoinings 1 : 1.41 1:1 2010 9 6
  9. 9. 03 Similar to round shape large crack small crack 2010 9 6
  10. 10. 04 Flexible size in many ways linked with GoogleMaps’ zoom scale Level:0 Level:24 2010 9 6
  11. 11. 05 Short codeing system 20 byte 3 - 11 byte 2010 9 6
  12. 12. 06 Easy to calculate distance function getDistance(_x1,_y1, _x2,_y2) { _x2 = _x2 * Math.PI / 180.0; _y2 = _y2 * Math.PI / 180.0; _x1 = _x1 * Math.PI / 180.0; _y1 = _y1 * Math.PI / 180.0; var dx=_x2-_x1; var dy=_y2-_y1; var A = 6378137; // (6378137m) A.x - B.x var x = A * (dx) * Math.cos( _y1 ); var y = A * (dy); var old_exp = exp; dy=Math.log(Math.tan(Math.PI/4+_y2/2))-Math.log(Math.tan(Math.PI/4+_y1/2)); var rad=((dy>=0) ? 1:-1)*Math.acos(dx/Math.sqrt(dx*dx+dy*dy))*180.0/Math.PI; var tmpdist = Math.round(Math.sqrt(x*x + y*y)); totaldist = totaldist + tmpdist; distcnt(); } 2010 9 6
  13. 13. 07 Easy to share route data 35.661960,139.697900 132KpxU 35.660093,139.701741 2 . . 3 . . 2 . . . . 20 × (n) byte 7 + (n) byte 2010 9 6
  14. 14. 08 Save privacy ex) for Lunch here sa2da Lunch here sa2da pinpoint vague 2010 9 6
  15. 15. GeoHex for what? 2010 9 6
  16. 16. 01 Map tiles for geogames kokogiko sa2da 2010 9 6
  17. 17. 02 Easy mehod substitute for round search 2010 9 6
  18. 18. 03 Search system at degrees 2010 9 6
  19. 19. 04 For statistic systems 2010 9 6
  20. 20. 05 Search system along tracks 2010 9 6
  21. 21. 06 Step-counting system for GPS tracking 11/40 START GOAL 1.4km 5.2km 2010 9 6
  22. 22. How to use GeoHex 2010 9 6
  23. 23. GeoHex is Open-Project Creative Commons License 2010 9 6
  24. 24. Several libraries are provided Perl kokogiko Ruby / GitHub hal_sk AS3 calcul_omikan http://github.com/geohex/ Android’s GeoHexV1 2010 9 6
  25. 25. URL: http://geohex.net 2010 9 6
  26. 26. GeoHex Contact: @sa2da #geohex sa2da@geohex.net 2010 9 6

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