SpatialPoints-class: Class "SpatialPoints"

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

Description

Class for (irregularly spaced) points

Objects from the Class

Objects can be created by calls of the form SpatialPoints(x).

Slots

coords:

Object of class "matrix", containing the coordinates (each row is a point)

bbox:

Object of class "matrix", with bounding box

proj4string:

Object of class "CRS", projection string

Extends

Class "Spatial", directly.

Methods

[

signature(x = "SpatialPoints"): subsets the points; only rows (points) can be subsetted

coerce

signature(from = "SpatialPoints", to = "data.frame"): retrieves the data part

coerce

signature(from = "SpatialPoints", to = "SpatialPixels"): equivalent to assigning gridded TRUE for a copy of the object

coerce

signature(from = "SpatialPointsDataFrame", to = "SpatialPixelsDataFrame"): equivalent to assigning gridded TRUE for a copy of the object

coerce

signature(from = "data.frame", to = "SpatialPoints"): sets coordinates, which may be in a data frame

coerce

signature(from = "matrix", to = "SpatialPoints"): set coordinates, which may be in a matrix

coordinates

signature(obj = "SpatialPoints"): retrieves the coordinates, as matrix

plot

signature(x = "SpatialPoints", y = "missing"): plot points

summary

signature(object = "SpatialPoints"): summarize object

points

signature(x = "SpatialPoints"): add point symbols to plot

show

signature(object = "SpatialPoints"): prints coordinates

rbind

signature(object = "SpatialPoints"): rbind-like method

plot method arguments

The plot method for “SpatialPoints” objects takes the following arguments:

x

object of class SpatialPoints

pch

default 3; either an integer specifying a symbol or a single character to be used as the default in plotting points

axes

default FALSE; a logical value indicating whether both axes should be drawn

add

default FALSE; add to existing plot

xlim

default NULL; the x limits (x1, x2) of the plot

ylim

default NULL; the y limits of the plot

...

passed through

setParUsrBB

default FALSE; set the par “usr” bounding box, see note in Spatial-class

cex

default 1; numerical value giving the amount by which plotting text and symbols should be magnified relative to the default

col

default 1; default plotting color

lwd

default 1; line width

bg

default 1; colour to be used for the background of the device region

Author(s)

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

See Also

SpatialPointsDataFrame-class

Examples

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x = c(1,2,3,4,5)
y = c(3,2,5,1,4)
S <- SpatialPoints(cbind(x,y))
S <- SpatialPoints(list(x,y))
S <- SpatialPoints(data.frame(x,y))
S
plot(S)

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