Find the mid-point of lines

Source: R/linefuns.R

This is a wrapper around SpatialLinesMidPoints() that allows it to find the midpoint of lines that are not projected, which have a lat/long CRS.

line_midpoint(l)

Arguments

l

A spatial lines object

See also

Other lines: angle_diff(), geo_toptail(), is_linepoint(), line2df(), line2points(), line_bearing(), line_breakup(), line_match(), line_sample(), line_segment(), line_via(), mats2line(), n_sample_length(), n_vertices(), onewaygeo(), points2line(), toptail_buff(), toptailgs(), update_line_geometry()

Examples

data(routes_fast)
line_midpoint(routes_fast[2:5, ])

#> Transforming to CRS +proj=aeqd +lat_0=53.82475517 +lon_0=-1.52535729 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs
#> Warning: CRS object has comment, which is lost in output
#> class       : SpatialPointsDataFrame 
#> features    : 4 
#> extent      : -1.533454, -1.514055, 53.82031, 53.82947  (xmin, xmax, ymin, ymax)
#> crs         : +proj=longlat +datum=WGS84 +no_defs 
#> variables   : 17
#> names       : plan, start, finish, length, time, waypoint, cum_hill, change_elev, dif_max_min, up_tot, down_tot,         av_incline, co2_saving, calories, busyness, ... 
#> min values  :    1,     1,      1,   1535,  313,       37,       87,         -61,          39,     14,       47, 0.0376344086021505,        286,       20,     2259, ... 
#> max values  :    1,     1,      1,   2976,  829,       97,      112,          -4,          65,     54,       75, 0.0566775244299674,        555,       78,     7062, ...