make_grid: Creates rectangular grid for emission allocation

In vein: Vehicular Emissions Inventories

Creates rectangular grid for emission allocation

Description

make_grid creates a sf grid of polygons. The spatial reference is taken from the spatial object.

Usage

make_grid(spobj, width, height = width, polygon, crs = 3857)

Arguments

spobj	A spatial object of class sp or sf.
width	Width of grid cell. It is recommended to use projected values.
height	Height of grid cell.
polygon	Deprecated! make_grid returns only sf grid of polygons.
crs	coordinate reference system in numeric format from http://spatialreference.org/ to transform/project spatial data using sf::st_transform. The default value is 3857, Pseudo Mercator

Value

A grid of polygons class 'sf'

Examples

## Not run: 
data(net)
grid <- make_grid(net, width = 0.5/102.47) #500 mts
plot(grid, axes = TRUE) #class sf
# make grid now returns warnings for crs with form +init...
#grid <- make_grid(net, width = 0.5/102.47) #500 mts


## End(Not run)

vein documentation built on April 30, 2023, 1:10 a.m.