Question

请，我想将Leaftlet KML热图的颜色渐变更改为R中的红色

library(leaflet.extras)

kml <- readr::read_file(
  system.file("examples/data/kml/crimes.kml.zip", package = "leaflet.extras")
)

leaflet() %>%
  setView(-77.0369, 38.9072, 12) %>%
  addProviderTiles(providers$CartoDB.Positron) %>%
  addKMLHeatmap(kml, radius = 7) %>%
  addKML(
    kml,
    markerType = "circleMarker",
    stroke = FALSE, fillColor = "black", fillOpacity = 1,
    markerOptions = markerOptions(radius = 1))

非常感谢

Answer 1

我不确定这是否是您要追求的目标，但是在处理热图时，有时可以帮助调整radius值。例如，如果将其从7更改为10，则会得到更强烈的颜色和值。尝试运行此命令，然后查看它是否在执行。（我还将标记上的fillOpacity更改为.5，以更清晰地显示热图）

library('leaflet.extras')

kml <- readr::read_file(
  system.file("examples/data/kml/crimes.kml.zip", package = "leaflet.extras")
)

leaflet() %>%
  setView(-77.0369, 38.9072, 12) %>%
  addProviderTiles(providers$CartoDB.Positron) %>%
  addKMLHeatmap(kml, radius = 10) %>%
  addKML(
    kml,
    markerType = "circleMarker",
    stroke = FALSE, fillColor = "black", fillOpacity = .5,
    markerOptions = markerOptions(radius = 1))

将R Leaftlet热图颜色更改为红色

1 个答案: