Aliases: sfc_linestring
Keywords:
### ** Examples x <- matrix( c(1:4), ncol = 2 ) sfc_linestring( x )
[[1]]
[,1] [,2]
[1,] 1 3
[2,] 2 4
attr(,"class")
[1] "XY" "LINESTRING" "sfg"
attr(,"n_empty")
[1] 0
attr(,"crs")
$input
[1] NA
$wkt
[1] NA
attr(,"class")
[1] "crs"
attr(,"class")
[1] "sfc_LINESTRING" "sfc"
attr(,"precision")
[1] 0
attr(,"bbox")
xmin ymin xmax ymax
1 3 2 4
attr(,"class")
[1] "bbox"
x <- data.frame( id = 1:2, x = 1:2, y = 2:1 ) sfc_linestring( x )
[[1]]
[,1] [,2] [,3]
[1,] 1 1 2
[2,] 2 2 1
attr(,"class")
[1] "XYZ" "LINESTRING" "sfg"
attr(,"n_empty")
[1] 0
attr(,"crs")
$input
[1] NA
$wkt
[1] NA
attr(,"class")
[1] "crs"
attr(,"class")
[1] "sfc_LINESTRING" "sfc"
attr(,"precision")
[1] 0
attr(,"bbox")
xmin ymin xmax ymax
1 1 2 2
attr(,"class")
[1] "bbox"
attr(,"z_range")
zmin zmax
1 2
attr(,"class")
[1] "z_range"
sfc_linestring( x, x = "x", y = "y" )
[[1]]
[,1] [,2]
[1,] 1 2
[2,] 2 1
attr(,"class")
[1] "XY" "LINESTRING" "sfg"
attr(,"n_empty")
[1] 0
attr(,"crs")
$input
[1] NA
$wkt
[1] NA
attr(,"class")
[1] "crs"
attr(,"class")
[1] "sfc_LINESTRING" "sfc"
attr(,"precision")
[1] 0
attr(,"bbox")
xmin ymin xmax ymax
1 1 2 2
attr(,"class")
[1] "bbox"
sfc_linestring( x, x = "y", y = "x" )
[[1]]
[,1] [,2]
[1,] 2 1
[2,] 1 2
attr(,"class")
[1] "XY" "LINESTRING" "sfg"
attr(,"n_empty")
[1] 0
attr(,"crs")
$input
[1] NA
$wkt
[1] NA
attr(,"class")
[1] "crs"
attr(,"class")
[1] "sfc_LINESTRING" "sfc"
attr(,"precision")
[1] 0
attr(,"bbox")
xmin ymin xmax ymax
1 1 2 2
attr(,"class")
[1] "bbox"
sfc_linestring( x, linestring_id = "id", x = "x", y = "y")
[[1]]
[,1] [,2]
[1,] 1 2
attr(,"class")
[1] "XY" "LINESTRING" "sfg"
[[2]]
[,1] [,2]
[1,] 2 1
attr(,"class")
[1] "XY" "LINESTRING" "sfg"
attr(,"n_empty")
[1] 0
attr(,"crs")
$input
[1] NA
$wkt
[1] NA
attr(,"class")
[1] "crs"
attr(,"class")
[1] "sfc_LINESTRING" "sfc"
attr(,"precision")
[1] 0
attr(,"bbox")
xmin ymin xmax ymax
1 1 2 2
attr(,"class")
[1] "bbox"
df <- data.frame( id = c(1,1,1,1,2,2,2) , x = 1:7 , y = 7:1 , z = 14:8 , m = 8:14 ) sfc_linestring(df, x = "x", y = "y", linestring_id = "id")
[[1]]
[,1] [,2]
[1,] 1 7
[2,] 2 6
[3,] 3 5
[4,] 4 4
attr(,"class")
[1] "XY" "LINESTRING" "sfg"
[[2]]
[,1] [,2]
[1,] 5 3
[2,] 6 2
[3,] 7 1
attr(,"class")
[1] "XY" "LINESTRING" "sfg"
attr(,"n_empty")
[1] 0
attr(,"crs")
$input
[1] NA
$wkt
[1] NA
attr(,"class")
[1] "crs"
attr(,"class")
[1] "sfc_LINESTRING" "sfc"
attr(,"precision")
[1] 0
attr(,"bbox")
xmin ymin xmax ymax
1 1 7 7
attr(,"class")
[1] "bbox"
sfc_linestring(df, x = "x", y = "y", z = "z", linestring_id = "id")
[[1]]
[,1] [,2] [,3]
[1,] 1 7 14
[2,] 2 6 13
[3,] 3 5 12
[4,] 4 4 11
attr(,"class")
[1] "XYZ" "LINESTRING" "sfg"
[[2]]
[,1] [,2] [,3]
[1,] 5 3 10
[2,] 6 2 9
[3,] 7 1 8
attr(,"class")
[1] "XYZ" "LINESTRING" "sfg"
attr(,"n_empty")
[1] 0
attr(,"crs")
$input
[1] NA
$wkt
[1] NA
attr(,"class")
[1] "crs"
attr(,"class")
[1] "sfc_LINESTRING" "sfc"
attr(,"precision")
[1] 0
attr(,"bbox")
xmin ymin xmax ymax
1 1 7 7
attr(,"class")
[1] "bbox"
attr(,"z_range")
zmin zmax
8 14
attr(,"class")
[1] "z_range"
sfc_linestring(df, x = "x", y = "y", m = "m", linestring_id = "id")
[[1]]
[,1] [,2] [,3]
[1,] 1 7 8
[2,] 2 6 9
[3,] 3 5 10
[4,] 4 4 11
attr(,"class")
[1] "XYM" "LINESTRING" "sfg"
[[2]]
[,1] [,2] [,3]
[1,] 5 3 12
[2,] 6 2 13
[3,] 7 1 14
attr(,"class")
[1] "XYM" "LINESTRING" "sfg"
attr(,"n_empty")
[1] 0
attr(,"crs")
$input
[1] NA
$wkt
[1] NA
attr(,"class")
[1] "crs"
attr(,"class")
[1] "sfc_LINESTRING" "sfc"
attr(,"precision")
[1] 0
attr(,"bbox")
xmin ymin xmax ymax
1 1 7 7
attr(,"class")
[1] "bbox"
attr(,"m_range")
mmin mmax
8 14
attr(,"class")
[1] "m_range"
sfc_linestring(df, x = "x", y = "y", z = "z", m = "m", linestring_id = "id")
[[1]]
[,1] [,2] [,3] [,4]
[1,] 1 7 14 8
[2,] 2 6 13 9
[3,] 3 5 12 10
[4,] 4 4 11 11
attr(,"class")
[1] "XYZM" "LINESTRING" "sfg"
[[2]]
[,1] [,2] [,3] [,4]
[1,] 5 3 10 12
[2,] 6 2 9 13
[3,] 7 1 8 14
attr(,"class")
[1] "XYZM" "LINESTRING" "sfg"
attr(,"n_empty")
[1] 0
attr(,"crs")
$input
[1] NA
$wkt
[1] NA
attr(,"class")
[1] "crs"
attr(,"class")
[1] "sfc_LINESTRING" "sfc"
attr(,"precision")
[1] 0
attr(,"bbox")
xmin ymin xmax ymax
1 1 7 7
attr(,"class")
[1] "bbox"
attr(,"z_range")
zmin zmax
8 14
attr(,"class")
[1] "z_range"
attr(,"m_range")
mmin mmax
8 14
attr(,"class")
[1] "m_range"