SpatialGrid-class: Class "SpatialGrid"

Description Objects from the Class Slots Extends Methods Author(s) See Also Examples

Description

class for defining a full, rectangular grid of arbitrary dimension

Objects from the Class

Objects are created by using e.g.

SpatialGrid(grid)

with grid of class GridTopology-class

Slots

grid

object of class GridTopology-class, defining the grid topology (offset, cellsize, dim)

bbox:

Object of class "matrix"; bounding box

proj4string:

Object of class "CRS"; projection

Extends

Class "SpatialPoints" directly; Class "Spatial", by class "SpatialPoints".

Methods

coordinates

signature(x = "SpatialGrid"): calculates coordinates for each point on the grid; coordinates are not stored in objects of class SpatialGrid

summary

signature(object = "SpatialGrid"): summarize object

plot

signature(x = "SpatialGrid"): plots cell centers

"["

signature(x = "SpatialGrid"): select rows and columns

Author(s)

Edzer Pebesma, edzer.pebesma@uni-muenster.de

See Also

SpatialGridDataFrame-class, SpatialGrid

Examples

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x = GridTopology(c(0,0), c(1,1), c(5,5))
class(x)
x
summary(x)
coordinates(x)
y = SpatialGrid(grid = x)
class(y)
y

Example output

[1] "GridTopology"
attr(,"package")
[1] "sp"
                  X1 X2
cellcentre.offset  0  0
cellsize           1  1
cells.dim          5  5
Grid topology:
  cellcentre.offset cellsize cells.dim
1                 0        1         5
2                 0        1         5
      s1 s2
 [1,]  0  4
 [2,]  1  4
 [3,]  2  4
 [4,]  3  4
 [5,]  4  4
 [6,]  0  3
 [7,]  1  3
 [8,]  2  3
 [9,]  3  3
[10,]  4  3
[11,]  0  2
[12,]  1  2
[13,]  2  2
[14,]  3  2
[15,]  4  2
[16,]  0  1
[17,]  1  1
[18,]  2  1
[19,]  3  1
[20,]  4  1
[21,]  0  0
[22,]  1  0
[23,]  2  0
[24,]  3  0
[25,]  4  0
[1] "SpatialGrid"
attr(,"package")
[1] "sp"
Object of class SpatialGrid
Grid topology:
  cellcentre.offset cellsize cells.dim
1                 0        1         5
2                 0        1         5
SpatialPoints:
      s1 s2
 [1,]  0  4
 [2,]  1  4
 [3,]  2  4
 [4,]  3  4
 [5,]  4  4
 [6,]  0  3
 [7,]  1  3
 [8,]  2  3
 [9,]  3  3
[10,]  4  3
[11,]  0  2
[12,]  1  2
[13,]  2  2
[14,]  3  2
[15,]  4  2
[16,]  0  1
[17,]  1  1
[18,]  2  1
[19,]  3  1
[20,]  4  1
[21,]  0  0
[22,]  1  0
[23,]  2  0
[24,]  3  0
[25,]  4  0
Coordinate Reference System (CRS) arguments: NA 

sp documentation built on Jan. 13, 2021, 12:09 p.m.