GeoHex is a hexagonal mapping and geocoding system that provides more precise location data than standard latitude-longitude coordinates. It divides the globe into a hex grid reference system with codes that are shorter than other methods and allows for flexible precision at different zoom levels on maps like Google Maps. GeoHex aims to make location data sharing and distance calculations easier compared to traditional methods. It is an open source project available under a Creative Commons license, with code libraries provided for various programming languages.

1. GeoHex
@sa2da #geohex
http://geohex.net/
2010 9 6

2. What’s GeoHex?
2010 9 6

3. Hex-Mapping Pattern
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4. GeoCoding System
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5. Covering for all locations
on GoogleMaps.
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6. Why GeoHex?
VS
Not GeoHex GeoHex
2010 9 6

7. 01
Cool interface
match for geogames
not cool
So Coooooooooool!!!
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8. 02
Equal in distance with
adjoinings
1 : 1.41 1:1
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9. 03
Similar to round shape
large crack small crack
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10. 04
Flexible size in many ways
linked with GoogleMaps’ zoom scale
Level:0 Level:24
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11. 05
Short codeing system
20 byte
3 - 11 byte
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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();
}
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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
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14. 08
Save privacy
ex) for
Lunch here
sa2da
Lunch here
sa2da
pinpoint
vague
2010 9 6

15. GeoHex for what?
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16. 01
Map tiles for geogames
kokogiko sa2da
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17. 02
Easy mehod substitute
for round search
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18. 03
Search system at degrees
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19. 04
For statistic systems
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20. 05
Search system along tracks
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21. 06
Step-counting system
for GPS tracking
11/40
START GOAL
1.4km 5.2km
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22. How to use GeoHex
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23. GeoHex is Open-Project
Creative Commons License
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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. URL: http://geohex.net
2010 9 6

26. GeoHex
Contact:
@sa2da #geohex
sa2da@geohex.net
2010 9 6