douglaskarr
asked on
Write a function "GetDistance" in a module in Access
I would like to be able to write GetDistance(startLatitude,
GetDistance = 3959 * ACOS(
( SIN(startLatitude / 57.3) * SIN(endLatitude / 57.3))
+ (COS(startLatitude / 57.3)
* COS(endLatitude / 57.3)
* COS((startLongitude - endLongitude) / 57.3)))
Please write a function in a module that I can do that.
nTop = integer
startLatitude = double
startLongitude = double
endLatitude = double
endLongitude = double
In the end, I would like to be able to write a query ....
Select TOP 25 * where getDistance(lat, long, 23.4, 45.7) < 5 from Table
GetDistance = 3959 * ACOS(
( SIN(startLatitude / 57.3) * SIN(endLatitude / 57.3))
+ (COS(startLatitude / 57.3)
* COS(endLatitude / 57.3)
* COS((startLongitude - endLongitude) / 57.3)))
Please write a function in a module that I can do that.
nTop = integer
startLatitude = double
startLongitude = double
endLatitude = double
endLongitude = double
In the end, I would like to be able to write a query ....
Select TOP 25 * where getDistance(lat, long, 23.4, 45.7) < 5 from Table
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Yes, you can call a function inside of VBA SQL!
I'm sorry, I didn't know that. I'm used to working with MySQL/PHP, Access is kind of a new thing for me. Thank you very much, 1William!
I think my function is still valid, though. You just want to double-check the math.
I think my function is still valid, though. You just want to double-check the math.
<looking the other way...> Math.. Yikes!