Regular Grid
Usage
bt_regulargrid(
bertin,
data,
step = 20,
values,
operator = "sum",
geoprocessing = "intersection",
blur = 0,
colors = "Tableau10",
order,
col_missing = "#f5f5f5",
txt_missing = "No data",
stroke = "white",
strokeWidth = 0.5,
fillOpacity = 1,
tooltip,
leg_x,
leg_y,
leg_w = 30,
leg_h = 20,
leg_fill = "none",
leg_stroke = "black",
leg_strokeWidth = 0.8,
leg_txtcol = "#363636",
leg_title = values,
leg_round,
leg_fontSize = 10
)Arguments
- bertin
map object
- data
sf object EPSG:4326
- step
gap between graticules. The value can be a number or an array of two values
- values
a string corresponding to the targeted variable in the properties
- operator
'sum' for absolute quantitative data or 'mean
- geoprocessing
'intersection' intersection between polygons and grid squares. Assignment of values in proportion to the intersected area) or 'dotinpoly' (considers each grid square and assigns the value of the underlying polygon or the weighted average of intersecting polygons. ).
- blur
radius of the kernel defined
- colors
define the pallette of categorical colors
- order
an array of values to set the order of the colors
- col_missing
Color for missing values
- txt_missing
Text for missing values
- stroke
stroke color
- strokeWidth
stroke width
- fillOpacity
fill opacity
- tooltip
tooltip allows you to display a label when you fly over an object
- leg_x
position in x (if this value is not filled, the legend is not displayed)(value in px)
- leg_y
position in y (if this value is not filled, the legend is not displayed)(value in px)
- leg_w
width of the box
- leg_h
height of the box
- leg_fill
color of the circles
- leg_stroke
stroke color of the circles
- leg_strokeWidth
stoke-width of the legend
- leg_txtcol
color of the text
- leg_title
title of the legend
- leg_round
number of digits after the decimal point
- leg_fontSize
legend title font size
Examples
library(sf)
world <- st_read(system.file("gpkg/world.gpkg", package = "bertin"),
layer = "world", quiet = TRUE)
bt_layer(data = world, fill = "#808080") |>
bt_regulargrid(data = world, values = "pop",
step = 20,
fill = list(
nbreaks = 6,
method = "quantile",
colors = "Blues"
),
tooltip = "$value") |>
bt_draw()