First off, I am very new to GIS, so an explanation to the given solution/formula would be great.
How do I calculate a constant bearing distance (rhumb line) of "due East"/"due West" from point1 to point2?
p1: Lat: 40 N Long: 110 W
p2: Lat: 40 N Long: 75 E
I know there should be a formula for this, but everything I have found seems a too advance, since I have that lat1 = lat2.
Edit: I have earlier found the shortest great-circle distance for these points, by the formula (converted to degrees): arcos(sin(40) * sin(40) + cos(40) * cos(40) * cos(175)) * (180 / pi) * 111 = 11085.58km This result correspond to what I get from this site: http://www.movable-type.co.uk/scripts/latlong.html
According to the same site, the rhumb-line should give a result of 14910km for due West, but I want to calculate this myself.