get_C_intersection {CCAMLRGIS}  R Documentation 
Given two lines defined by the Latitudes/Longitudes of their extremities, finds the location of their intersection, in Euclidean space, using this approach: https://en.wikipedia.org/wiki/Lineline_intersection.
get_C_intersection(Line1, Line2, Plot = TRUE)
Line1 
Vector of 4 coordinates, given in decimal degrees as:

Line2 
Same as 
Plot 
logical, if set to TRUE, plots a schematic of calculations. 
#Example 1 (Intersection beyond the range of segments)
get_C_intersection(Line1=c(30,55,29,50),Line2=c(50,60,40,60))
#Example 2 (Intersection on one of the segments)
get_C_intersection(Line1=c(30,65,29,50),Line2=c(50,60,40,60))
#Example 3 (Crossed segments)
get_C_intersection(Line1=c(30,65,29,50),Line2=c(50,60,25,60))
#Example 4 (Antimeridian crossed)
get_C_intersection(Line1=c(179,60,150,50),Line2=c(120,60,130,62))
#Example 5 (Parallel lines  uncomment to test as it will return an error)
#get_C_intersection(Line1=c(0,60,10,60),Line2=c(10,60,10,60))