emap_heat: Add heat on map

In JohnCoene/echarts: EChart htmlwidget

Description

Add heat on map

Usage

emap_heat(p, lon, lat, z, blurSize = 30, minAlpha = 0.05, valueScale = 1,
  opacity = 1, gradientColors = NULL, ...)

emap_heat_(p, lon, lat, z, blurSize = 30, minAlpha = 0.05, valueScale = 1,
  opacity = 1, gradientColors = NULL, ...)

Arguments

p	an echart object.
lon, lat	coordinates.
z	values, heat.
blurSize	blur of points.
minAlpha	minimum transparency.
valueScale	z multiplier.
opacity	opacity of heatmap.
gradientColors	colors.
...	any other parameter to pass to heatmap.

Examples

data <- data.frame(lon = runif(300, 90, 120),
  lat = runif(300, 30, 39),
  z = runif(300, 75, 100))

data %>%
  echart() %>%
  emap(mapType = "china") %>%
  emap_heat(lon, lat, z)

data %>%
  echart() %>%
  emap(mapType = "china") %>%
  emap_heat(lon, lat, z, blurSize = 50, minAlpha = 0.3, opacity = 0.8)

JohnCoene/echarts documentation built on May 22, 2021, 6:18 p.m.