Hi All, <br>
<br>
Is there a function within Proj4 that would return a representation of a normal vector to a point on an Earth ellipsoid? Perhaps something
like:<br>
<br>
getNormal( projPJ my_cs, double x, double y, double z )<br>
<br>
Would be grateful for any clues!<br>
-ung<br>
<br>