AppInventor: Menghitung Jarak dan Arah dari GPS: Difference between revisions
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Sumber: https://sites.google.com/site/appinventor/distance-based-on-lat-long | Sumber: https://sites.google.com/site/appinventor/distance-based-on-lat-long | ||
==Menghitung Jarak== | |||
Jarak: | |||
distance = sqrt(x^2 + y^2) | distance = sqrt(x^2 + y^2) | ||
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x = 69.1 * (lat2 - lat1) | x = 69.1 * (lat2 - lat1) | ||
y = 69.1 * (lon2 - lon1) * cos(lat1/57.3) | y = 69.1 * (lon2 - lon1) * cos(lat1/57.3) | ||
==Menghitung Arah== | |||
Arah: | |||
β = atan2(X,Y), | |||
Dimana | |||
X = cos θb * sin ∆L | |||
Y = cos θa * sin θb – sin θa * cos θb * cos ∆L | |||
| Line 13: | Line 30: | ||
* https://sites.google.com/site/appinventor/distance-based-on-lat-long | * https://sites.google.com/site/appinventor/distance-based-on-lat-long | ||
* http://www.igismap.com/formula-to-find-bearing-or-heading-angle-between-two-points-latitude-longitude/ | |||
Revision as of 10:15, 10 October 2015
Sumber: https://sites.google.com/site/appinventor/distance-based-on-lat-long
Menghitung Jarak
Jarak:
distance = sqrt(x^2 + y^2)
Dimana:
x = 69.1 * (lat2 - lat1) y = 69.1 * (lon2 - lon1) * cos(lat1/57.3)
Menghitung Arah
Arah:
β = atan2(X,Y),
Dimana
X = cos θb * sin ∆L Y = cos θa * sin θb – sin θa * cos θb * cos ∆L
