问题:
add_grid
Rmapdeck
包中的功能非常令人兴奋。但是,按照CRAN 文档,我似乎无法获得任何数据来实际绘制在返回的地图上。
换句话说,地图返回,但没有绘制数据。这是一个已知的错误?
代码:
library(tidyverse)
library(mapdeck)
# - Enter mapdeck key ... Note that it is user-specific
key <- rstudioapi::askForPassword()
# - Read Example Data Set
df <- read.csv(paste0(
'https://raw.githubusercontent.com/uber-common/deck.gl-data/master/',
'examples/3d-heatmap/heatmap-data.csv'
))
# - Plot Data ... Note how the map returns, but not the data
mapdeck( token = key, style = 'mapbox://styles/mapbox/dark-v9', pitch = 45 ) %>%
add_grid(
data = df
, lat = "lat"
, lon = "lng"
, cell_size = 5000
, elevation_scale = 50
, layer_id = "grid_layer"
)
由reprex 包(v0.2.1)于 2018 年 9 月 23 日创建
输出: