Get the nearest point on a line to a given point

This function calculates the coordinates of the nearest point on a line to a given point. This function does not work with geographic coordinates.

nearestPointOnLine(coordsLine, coordsPoint)

Arguments

coordsLine

Matrix with coordinates of line vertices. Each row represents a vertex.

coordsPoint

A vector representing the X and Y coordinates of the point.

Value

Vector with the X and Y coordinates of the nearest point on a line to the given point.

Author

German Carrillo

See also

nearestPointOnSegment, snapPointsToLines

Examples

coordsLine = cbind(c(1,2,3),c(3,2,2))
coordsPoint = c(1.2,1.5)
nearestPointOnLine(coordsLine, coordsPoint)
#>    X    Y 
#> 1.85 2.15