make plotly axes default to ggplots axes

[vandenman]

Fixes the issue we discussed over Mattermost (is there an issue for this?)

Reprex in R

library(jaspGraphs)
library(ggplot2)

set.seed(1)

sample_df <- data.frame(x = rnorm(30), y = rnorm(30))

ggplt2 <- ggplot(data = sample_df, mapping = aes(x = x, y = y)) +
  geom_point() +
  scale_x_continuous(breaks = seq(-8, 5, 1), limits = c(-8, 5)) +
  jaspGraphs::geom_rangeframe()

plplt2 <- jaspGraphs::convertGgplotToPlotly(ggplt2, FALSE)
print(plplt2)

The code is not very pretty, but the idea is:

• Leave tickmode at array (ggplot2) default).
• Instead, add custom js code that changes tickmode to "auto" whenever the plot is panned or zoomed.
• Revert to the original tickmode (and thus ticks) when a user resets the axes (or double-clicks).

This also required some changes to the rangeframe code.
According to chatgpt, there is no R way of doing this.

[juliuspfadt]

I cant find an issue for this and I also cant seem to reproduce the weird axis ticks. I will test nevertheless with jaspDescriptives

[Copilot]

Pull request overview

This PR updates convertGgplotToPlotly() so Plotly axes initially keep ggplot2’s explicit tick specification (tickmode array), while switching to Plotly auto ticks only during pan/zoom interactions and restoring the original ticks on axis reset. It also adjusts the rangeframe Plotly-side logic and updates tests/snapshots affected by the rendering changes.

Changes:

• Add an adaptive_ggplotly_ticks() helper that injects JS to toggle axis tick behavior between ggplot-style ticks and Plotly auto ticks based on relayout events.
• Rework the rangeframe JS so it aligns rangeframe extents to the rendered ticks (including after resets that restore ggplot tick arrays).
• Update PlotPieChart tests and refresh vdiffr snapshots impacted by the plotting changes.

Reviewed changes

Copilot reviewed 3 out of 16 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
tests/testthat/test-PlotPieChart.R	Updates the non-polar test path and makes the “many slices” input deterministic; adds a macOS skip for that case.
tests/testthat/_snaps/PlotRobustnessSequential/plotrobustnesssequential-sequential.svg	Updated snapshot after rendering changes.
tests/testthat/_snaps/PlotRobustnessSequential/plotrobustnesssequential-points-main.svg	Updated snapshot after rendering changes.
tests/testthat/_snaps/PlotRobustnessSequential/plotrobustnesssequential-points-legend.svg	Updated snapshot after rendering changes.
tests/testthat/_snaps/PlotRobustnessSequential/plotrobustnesssequential-evidence-main.svg	Updated snapshot after rendering changes.
tests/testthat/_snaps/PlotRobustnessSequential/plotrobustnesssequential-bf-main.svg	Updated snapshot after rendering changes.
tests/testthat/_snaps/PlotRobustnessSequential/plotrobustnesssequential-arrow-plain.svg	Updated snapshot after rendering changes.
tests/testthat/_snaps/PlotRobustnessSequential/plotrobustnesssequential-arrow-parse.svg	Updated snapshot after rendering changes.
tests/testthat/_snaps/PlotPieChart/plotpiechart-polar-no-ticks-no-legend.svg	Updated snapshot after PlotPieChart output changes.
tests/testthat/_snaps/PlotPieChart/plotpiechart-polar-default.svg	Updated snapshot after PlotPieChart output changes.
R/PlotPieChart.R	Adjusts documentation and deprecation warning text around polarAxis.
R/convertGgplotToPlotly.R	Adds adaptive tick JS injection and updates rangeframe JS to use rendered tick extents.
man/plotPieChart.Rd	Keeps generated Rd text consistent with the updated roxygen docs.

Files not reviewed (1)

• man/plotPieChart.Rd: Generated file