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I am using Goolge maps api in my project to show the location of a shoping store.
Can you please let me know which method i can use to get list of all stores are within the distance (in miles) from the location of above shoping store ?
or steps of proximaty search using google map api so i can able to do above task.
Thanks in advance.
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by: nayernaguibPosted on 2008-03-24 at 02:23:00ID: 21192565
Given that you have the latitude and longitude of all stores, you can perform your calculations as follows:
t_example- 1818.html
1. A degree of latitude is approximately equal to 69 miles, and a degree of longitude is approximately equal to cos(latitude in radians) * 69 miles.
2. Given that x1 and y1 hold the values of the latitude and longitude of store 1, respectively, and x2 and y2 hold the values of the latitude and longitude of store 2, respectively, the distance between store 1 and store 2 can be calculated by obtaining x3 and y3 (the horizontal and vertical distance in miles, respectively), and then calculating the distance using the formula:
SQRT(x3^2 + y3^2)
Take a look at the following page for sample code in PHP that presents another formula for calculating the distance:
http://www.weberdev.com/ge
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Nayer Naguib