add_annotations doesn't respect log scale
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Description
When using add_annotations with a log scale, the coordinates of the annotations are not automatically log-transformed.
exp_dat <- data.frame(x = 0:100,
y = exp(0:100))
ann_dat <- data.frame(x = c(1, 10, 100),
y = exp(c(1, 10, 100)),
label = c(1, 10, 100))
plot_ly(type = "scatter", mode = "lines+markers") %>%
add_lines(., data = exp_dat, x = ~x, y = ~y) %>%
add_annotations(., data = ann_dat, x = ~x, y = ~y, text = ~label) %>%
layout(., yaxis = list(type = "log"))
The desired result can be obtained by manually log-transforming the coordinates, but it would be more intuitive if this wasn't necessary.
plot_ly(type = "scatter", mode = "lines+markers") %>%
add_lines(., data = exp_dat, x = ~x, y = ~y) %>%
add_annotations(., data = ann_dat, x = ~x, y = ~log10(y), text = ~label) %>%
layout(., yaxis = list(type = "log"))
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the provided R example with add_annotations and a logarithmic y-axis, then inspect the add_annotations entry point and its handling of annotation coordinates. Done means annotations align correctly on the log scale without manually transforming y values.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- r
- Domain
- data-visualization
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 45/100