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05.15.2008 at 03:31PM PDT, ID: 23406932
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7.7

Drawing a circle on Google Maps and finding points within that circle

Asked by PapaparaTudu in Math & Science

Tags:

Hello,
I am looking for a mathematical formula to solve the following problem:
1.  I have a Google Map of a certain area (they use the Mercator-projection)
2. I know the coordinates of the central point on that map, say p0: (lat = 53, lon = 10)
3. I know the zoom level, let's say it's 3
4. now I draw a circle of say 100 pixels around that point
5. I am given a point with the following coordinates: p1: (lat= 45, lon = 5)

How can I calculate whether p1 is within the circle?

Thanks,
Papapara Tudu


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[+][-]05.15.2008 at 07:39PM PDT, ID: 21579616

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About this solution

Zone: Math & Science
Tags: Maths, Geography, Mercator projection, distance, latitude, longitude, Google Maps
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Solution Provided By: ozo
Participating Experts: 1
Solution Grade: B
 
 
 
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