CODEWITHSUNDEEP
rplotly
Staehlo
Staehlo

Reputation: 397

How to create plot with both vertical and horizontal spikelines in plotly?

Plotly offers the option to display a moveable horizontal or vertical "spikeline" by adding layout(hovermode = "x unified") or layout(hovermode = "y unified") (see documentation). For example:

library(plotly)

x <- seq(from = 0, to = 2*pi, length = 100)
y <- sin(x)
fig <- plot_ly(x = x, y = y, type = "scatter", mode = "markers")
fig <- fig %>% layout(hovermode = "x unified")
fig

creates this plot with a vertical line that follows the cursor:

enter image description here

I would like to have both the vertical and the horizontal spikeline displayed. Like this: enter image description here

I tried to modify the layout like this:

fig <- fig %>% layout(hovermode = "x unified") %>% layout(hovermode = "y unified")
# or
fig <- fig %>% layout(hovermode = c("x unified", "y unified"))
# or
fig <- fig %>% layout(hovermode = "x unified|y unified")

None of this worked. Would anybody have a suggestion?

Upvotes: 3

Views: 1158

Answers (2)

Quinten
Quinten

Reputation: 41225

You could use spikemode with the option across in your layout for both xaxis and yaxis. Here is a reproducible example:

library(plotly)

x <- seq(from = 0, to = 2*pi, length = 100)
y <- sin(x)
fig <- plot_ly(x = x, y = y, type = "scatter", mode = "markers")
fig %>%
  layout(xaxis = list(spikemode = 'across'),
         yaxis = list(spikemode = 'across'))

enter image description here

Created on 2022-10-29 with reprex v2.0.2

As you can see both vertical and horizontal spike lines are shown.

If you only want to have the spike lines to your axis, you could use toaxis in your spikemode like this:

fig %>%
  layout(xaxis = list(spikemode = 'toaxis'),
         yaxis = list(spikemode = 'toaxis'))

enter image description here

Created on 2022-10-29 with reprex v2.0.2

As you can see this only shows the spike lines to your axis.

Upvotes: 6

gloop
gloop

Reputation: 1

Check out this resource on 3d plots - I had the same issue and applied the xaxis = list() and yaxis = list() arguments to layout() and it worked well for me.

https://plotly.com/r/3d-hover/

Upvotes: 0

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