gm_coordinates: gm_coordinates

In geometries: Convert Between R Objects and Geometric Structures

Description

Converts all coordinates from various geometric shapes into a single data.frame.

Usage

gm_coordinates(x)

Arguments

x	object representing geometry shapes (e.g., list of matrices)

Details

The data.frame returned will always have an 'id' column. Then will follow an 'id+counter' column for every level of nesting the geometry is within.

The coordinates always start in column 'c1', the first column after all the id columns. Then there is a column 'c+counter' for every coordinate in the geometry.

This function is designed to handle multiple and different nested of geometry structures.

Value

a single data.frame representing all the values in the input lists and matrices.

Examples

x <- 1:3
gm_coordinates( x )

m <- matrix(1:12, ncol = 3)
gm_coordinates( m )

l <- list(
  matrix(1:12, ncol = 2 )
)
gm_coordinates( l )

l <- list(
  matrix(1:12, ncol = 4 )
)
gm_coordinates( l )

l <- list(
  list(
    matrix(1:12, ncol = 2)
  )
)
gm_coordinates( l )

l <- list(
  list(
    matrix(1:12, ncol = 2)
    , matrix(1:4, ncol = 2)
  )
)
gm_coordinates( l )

l <- list(
  list(
    matrix(1:12, ncol = 2)
    , matrix(1:4, ncol = 2)
  )
  , 1:5
  , 1:2
  , matrix(1:9, ncol = 3)
)
gm_coordinates( l )

l <- list(
  matrix(1:4, ncol = 2)
  , list(
    matrix(1:9, ncol = 3)
  )
)
gm_coordinates( l )

l <- list(
  list(
    list(
      matrix(1:12, ncol = 2)
    )
  )
  , list(
    list(
     matrix(1:24, ncol = 2)
   )
  )
)
gm_coordinates( l )

l <- list(
  list(
    list(
      matrix(1:12, ncol = 2)
    )
  )
  , list(
    list(
      matrix(1:3, ncol = 3)
     , matrix(1:24, ncol = 2)
   )
  )
)
gm_coordinates( l )

geometries documentation built on Jan. 13, 2021, 8:12 p.m.