On Tuesday 08 April 2014, François Lacombe wrote: > [...] > Is there a solution to that issue ? > > Measuring geographic north directly isn't so simple I think. >
Probably the simplest and most accurate way is to use position measurements to determine the direction. Look in what direction the feature you want to orient points, identify a point in that direction at suitable distance, go to that point and record the position (or use the already mapped data of it) and use both positions to determine the direction. With very simple tools (like piece of cardboard with an angular scale drawn on it) you can also record relative orientations and this way avoid the need to find a reference point in exactly the direction your object points to. This is how you used to measure everything before the age of GPS. -- Christoph Hormann http://www.imagico.de/ _______________________________________________ talk mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk
