fmesher (version 0.3.0)

fm_as_segm: Convert objects to fm_segm

Description

Convert objects to fm_segm

Usage

fm_as_segm(x, ...)
fm_as_segm_list(x, ...)
# S3 method for fm_segm
fm_as_segm(x, ...)
# S3 method for inla.mesh.segment
fm_as_segm(x, ...)
# S3 method for sfg
fm_as_segm(x, ...)
# S3 method for sfc_POINT
fm_as_segm(x, reverse = FALSE, grp = NULL, is.bnd = TRUE, ...)
# S3 method for sfc_LINESTRING
fm_as_segm(x, join = TRUE, grp = NULL, reverse = FALSE, ...)
# S3 method for sfc_MULTILINESTRING
fm_as_segm(x, join = TRUE, grp = NULL, reverse = FALSE, ...)
# S3 method for sfc_POLYGON
fm_as_segm(x, join = TRUE, grp = NULL, ...)
# S3 method for sfc_MULTIPOLYGON
fm_as_segm(x, join = TRUE, grp = NULL, ...)
# S3 method for sfc_GEOMETRY
fm_as_segm(x, grp = NULL, join = TRUE, ...)
# S3 method for sf
fm_as_segm(x, ...)
# S3 method for matrix
fm_as_segm(
  x,
  reverse = FALSE,
  grp = NULL,
  is.bnd = FALSE,
  crs = NULL,
  closed = FALSE,
  ...
)
# S3 method for SpatialPoints
fm_as_segm(x, reverse = FALSE, grp = NULL, is.bnd = TRUE, closed = FALSE, ...)
# S3 method for SpatialPointsDataFrame
fm_as_segm(x, ...)
# S3 method for Line
fm_as_segm(x, reverse = FALSE, grp = NULL, crs = NULL, ...)
# S3 method for Lines
fm_as_segm(x, join = TRUE, grp = NULL, crs = NULL, ...)
# S3 method for SpatialLines
fm_as_segm(x, join = TRUE, grp = NULL, ...)
# S3 method for SpatialLinesDataFrame
fm_as_segm(x, ...)
# S3 method for SpatialPolygons
fm_as_segm(x, join = TRUE, grp = NULL, ...)
# S3 method for SpatialPolygonsDataFrame
fm_as_segm(x, ...)
# S3 method for Polygons
fm_as_segm(x, join = TRUE, crs = NULL, grp = NULL, ...)
# S3 method for Polygon
fm_as_segm(x, crs = NULL, ...)

Value

An fm_segm or fm_segm_list object

Arguments

x

Object to be converted.

...

Arguments passed on to submethods

reverse

logical; When TRUE, reverse the order of the input points. Default FALSE

grp

if non-null, should be an integer vector of grouping labels for one for each segment. Default NULL

is.bnd

logical; if TRUE, set the boundary flag for the segments. Default TRUE

join

logical; if TRUE, join input segments with common vertices. Default TRUE

crs

A crs object

closed

logical; whether to treat a point sequence as a closed polygon. Default: FALSE

Functions

• fm_as_segm(): Convert an object to fm_segm.

• fm_as_segm_list(): Convert each element, making a fm_segm_list object

See Also

c.fm_segm(), c.fm_segm_list(), [.fm_segm_list()

Other object creation and conversion: fm_as_fm(), fm_as_lattice_2d(), fm_as_lattice_Nd(), fm_as_mesh_1d(), fm_as_mesh_2d(), fm_as_mesh_3d(), fm_as_sfc(), fm_as_tensor(), fm_lattice_2d(), fm_lattice_Nd(), fm_mesh_1d(), fm_mesh_2d(), fm_segm(), fm_simplify(), fm_tensor()

Examples

fm_as_segm_list(list(
  fm_segm(fmexample$mesh),
  fm_segm(fmexample$mesh, boundary = FALSE)
))

(segm <- fm_segm(fmexample$mesh, boundary = FALSE))
(segm_sfc <- fm_as_sfc(segm))
(fm_as_segm(segm_sfc))