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Sarah,

A geodesic is the shortest distance between two points on a surface.
Typically this used in geodetic surveying for calculating the shortest
distance on the spheroid.

What I have done in the past to plot the geodesic on a spheroid surface is
as a follows.
1. The shortest distance between two points is a straight line join.
2. Compute this join and compute points at a suitable interval along this
line (on a spheroid I would use every 10 metres).
3. Compute the point on the surface that is normal to the point on the
straight line.
     - An a spheroid the straight line join would have a negative height.
     - Height zero would be on the spheroid surface and would have the same
latitude/longitude as the point on the straight line join.

Regards,

Alan




On 8/12/2013 3:50 PM, sara wrote:
> Hi , 
>
> I am search for a method computing the geodesic distance between 2 point
in
> a mesh . 
> Can CGAL do this ? what is the class function I hsould use for this ?
>
>
> Thanks a lot .
> Sarah
>
>
>
> --
> View this message in context:
http://cgal-discuss.949826.n4.nabble.com/geodesic-distance-between-2-point-o
f-mesh-tp4658528.html
> Sent from the cgal-discuss mailing list archive at Nabble.com.
>


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