silicate (version 0.7.0)

PATH0: Path model in structural form

Description

Structural form requires only tables 'object' and 'vertex'.

Minimal columns is x,y but can be grouped by path_ for separate paths, then subobject_ and object_ for full polygon support.

Usage

PATH0(x, ...)
# S3 method for default
PATH0(x, ...)
# S3 method for PATH0
PATH0(x, ...)
PATH0_from_df(
  x,
  ...,
  path_ = "path_",
  object_ = "object_",
  subobject_ = "subobject_",
  x_ = "x",
  y_ = "y"
)

Value

PATH0 model with tables 'object' and 'vertex'

Arguments

x

data frame with at least x, y columns

...

ignored

path_

path identifier, these should identify individual paths

object_

object identifier (like group in ggplot)

subobject_

subobject identifier (like polygon_id with multipolygons in sfheaders)

x_

optional name for x column (assumed to be x)

y_

optional name for x column (assumed to be y)

Details

This function exists as a special-case for non-format input for PATH0(). It's expected there are columns x, y, and optionally object_, subobject_, and path_. These correspond to names in sfheaders, multipolygon_id, polygon_id, and linestring_id. (subobject is optional if not multipolygon).

Examples

(p <- PATH0(minimal_mesh))

p$object$topology_
PATH0_from_df(data.frame(x = runif(10), y = runif(10)))