Clicking on radar legend does not toggle the right series

[antoine-sachet]

This is apparent on the radar demo.

Code to reproduce:

df <- data.frame(
    x = LETTERS[1:5],
    y = runif(5, 1, 5),
    z = runif(5, 3, 7)
)

df %>% 
    e_charts(x) %>% 
    e_radar(y, max = 7, name = "radar") %>%
    e_radar(z, max = 7, name = "chart") %>%
    e_tooltip(trigger = "item")

Clicking on the first element of the legend, "radar", removes both the "radar" and "chart" series. It should only remove the first series.

[etiennebacher]

I am having the same bug, do you know how to fix it @JohnCoene?

[etiennebacher]

This bug only appears in radar plots (to my knowledge). For example, there are no problems with line plots:

library(echarts4r)

df <- data.frame(
  x = LETTERS[1:5],
  y = runif(5, 1, 5),
  z = runif(5, 3, 7)
)

# legend doesn't work with radar
df %>% 
  e_charts(x) %>% 
  e_radar(y, max = 7, name = "radar") %>%
  e_radar(z, max = 7, name = "chart")

# legend works with lines
df %>%
  e_charts(x) %>%
  e_line(y) %>%
  e_line(z)

I checked the preview in echarts.js documentation and the legend works well so I guess this bug comes from the R package. I tried to compare the code of e_radar_ to the code of e_line_ but I didn't find anything unusual (though I'm far from being an expert in R, and even less in JS). Any idea where this comes from?

[JohnCoene]

Sorry, I had overlooked this issue, I pushed a fix to Github main branch just now.

[daljio56]

one option is try to indicate that the first legend control the whole radar chart, and then add radar for each element, with that at lease each element has its buttom to be hide and show.

It's a trick to try to overcome the problem, it not solve the real issue.

df <- data.frame(
x = LETTERS[1:5],
y = runif(5, 1, 5),
z = runif(5, 3, 7)
)

df$w <- NA

df %>%
e_charts(x) %>%
e_radar(w, max = 7, name = "radar") %>%
e_radar(y, max = 7, name = "var1") %>%
e_radar(z, max = 7, name = "var2") %>%
e_tooltip(trigger = "item")