Get the nearest point on a segment to a given point
This function calculates the coordinates of and the distance to the nearest point on a segment to a given point. This function does not work with geographic coordinates.
- A matrix representing the coordinates of the segment. The matrix has 2x2 dimension where each row represents one of the end points.
- A vector representing the X and Y coordinates of the point.
- A vector with three numeric values representing X and Y coordinates of the nearest point on a segment to a given point as well as the distance between both points.
The function was ported to R based on this code: http://pastebin.com/n9rUuGRh
segment = cbind(c(1,2),c(1,1.5)) point = c(1.2,1.5) nearestPointOnSegment(segment, point)
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