[sac-forum] Re: Determining Position

Stan,
Send me the values and anything you think might be pertinant and I can input it 
all into a CAD system and give you something as precise as you wish.




---------- Original Message ----------------------------------
From: Stan Gorodenski <stan_gorodenski@xxxxxxxxxxxxx>
Reply-to: sac-forum@xxxxxxxxxxxxx
Date: Thu, 18 May 2006 21:02:16 -0700

>Since I am always thinking about something like this, it just occurred 
>to me a way I could do it. I have plenty of old style graph paper, fine 
>divisioned and some large sheets. I could set up x & y coordinates, one 
>for latitude and the other for longitude, plot the two points, and then 
>draw a straight line between the two and read off latituded and 
>longitude for the points in between. Or, and probably the best, it 
>should be easy to get a slope for a straight line just by the theory of 
>a regression line. For my purpose, I do not need to take into account 
>the earth curvature since any deviation would undoubtedly be much 
>smaller than the accuracy of a GPS - After getting the in between points 
>I plan to go out to the field and locate them using a GPS.
>Stan
>
>Stan Gorodenski wrote:
>
>> Assume I have the latitude and longitude of two points separated by a 
>> thousand feet. I want to find the mid point on a straight line between 
>> the two, or for that matter, anywhere along the straight line. There 
>> are trees between the two points so that they cannot be seen. What is 
>> the best way to do this? Is there an easy way to do it with the GPS 
>> units?
>> Stan
>>
>>
>>
>
>

--
have a great day, and a clear night
Stan Clark
33.43N, 112.35 W
Saguaro Astronomy Club
Webmaster
www.saguaroastro.org
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