<div dir="ltr"><div><div>I think the two GPS points method remains the best way to achieve azimuth measurements, indeed.<br><br></div>Thank you gentlemen.<br><br></div>Any more advice ?<br></div><div class="gmail_extra"><br clear="all">
<div><b>François Lacombe</b><br><br>francois dot lacombe At telecom-bretagne dot eu<br><a href="http://www.infos-reseaux.com" target="_blank">http://www.infos-reseaux.com</a><br></div>
<br><br><div class="gmail_quote">2014-04-08 12:24 GMT+02:00 Christoph Hormann <span dir="ltr"><<a href="mailto:chris_hormann@gmx.de" target="_blank">chris_hormann@gmx.de</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Tuesday 08 April 2014, François Lacombe wrote:<br>
> [...]<br>
<div class="">> Is there a solution to that issue ?<br>
><br>
> Measuring geographic north directly isn't so simple I think.<br>
><br>
<br>
</div>Probably the simplest and most accurate way is to use position<br>
measurements to determine the direction. Look in what direction the<br>
feature you want to orient points, identify a point in that direction<br>
at suitable distance, go to that point and record the position (or use<br>
the already mapped data of it) and use both positions to determine the<br>
direction.<br>
<br>
With very simple tools (like piece of cardboard with an angular scale<br>
drawn on it) you can also record relative orientations and this way<br>
avoid the need to find a reference point in exactly the direction your<br>
object points to. This is how you used to measure everything before<br>
the age of GPS.<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Christoph Hormann<br>
<a href="http://www.imagico.de/" target="_blank">http://www.imagico.de/</a><br>
</font></span><div class="HOEnZb"><div class="h5"><br>
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