finding the centroid between two points

Question

Hi, I have a very large data set. Each row has a lat/long for a start point, and a lat/long for an end point. I am looking for the easiest way to locate the centroid between these two points and display them with out also showing the start and end point locations.

Thanks,
    Jane

MikeMacRae · Answer

Yes, I found a python function that you could probably use to do the conversion and then just do the math on the values it returns

http://stackoverflow.com/questions/2579535/how-to-convert-dd-to-dms-in-python

The stackoverflow site has tons of good python scripting examples.

janehansen · Answer

Sorry, i missed the part that you are working in Lat\Long. You could possibly calculate the lat\long to decimal degrees and then do the math on that and then convert back to lat long?

Thanks Mike, so using decimal degrees I would use the same calculation as you did for UTM but using the decimal degrees?

MikeMacRae · Answer

Sorry, i missed the part that you are working in Lat\Long. You could possibly calculate the lat\long to decimal degrees and then do the math on that and then convert back to lat long?