Changelog

Upgrade to d3 7.6.1
Fix labels not updating when setting min contrib value (thanks @gabrielparriaux)

Upgrade to d3 7.0.0
Allow to specify a d3 color palette for categorical variable mapping
Breaking change : the click_callback function is now passed the point datum object instead of the point index
Fix legend labels formatting in Rmarkdown HTML output

Upgrade to d3 6.2.0
Take levels order into account when a variable is a factor (thanks @sharvarinarendra)
Fix label lines updating (thanks @Tixierae)
Fix caption not updated (thanks @damirpolat)

New init_callback argument for (undocumented) callback on scatter object after init or update
Bugfix : ** operator not working in Safari / old RStudio
Bugfix : NS_ERROR_FAILURE with getBBox in labels

Qualitative color palettes between 10 and 12 items now use ColorBrewer’s schemePaired
Upgrade to d3 5.9.2 (with version conflicts patch)
Add documentation website with pkgdown
Keep the order of levels in legend if col_var or symbol_var is a factor (thanks @romanhaa)
Add symbols argument and custom symbol to value mapping (thanks @GiuseppeDiGuglielmo and @mmauri)
New tooltip_position argument to define tooltip placement (thanks @Tixierae)
Add disable_wheel argument to disable mousewheel zooming (thanks @romanhaa)
Add colors argument for continuous color variables (thanks @romanhaa)
Add zoom_on and zoom_on_level arguments for programmatic zooming (thanks @Tixierae)
Permanent lines between dot and labels above a certain distance
Add small white outline around labels
Add ability to specify custom values <=> sizes or opacities
Ignore empty “” domain values in legends
Don’t show legend if it’s corresponding _lab value is NA
First try at automatic label placement with labels_positions = "auto"
Complete code refactoring

Bugfix : categorical axes labels shown as NaN (thanks @zji90)
Bugfix : plot not centered when fixed = TRUE (thanks @jon-nagra)
Bugfix : incorrect plot when only one point (thanks @CUinNYC)
Bugfix : xlim and ylim not taken into account when updating chart (thanks @CUinNYC)
Bugfix : plot with no data should return an empty plot, not an error
Bugfix : tick marks must be put below axes labels

New “caption” argument to add a toggable caption to the plot
New “x_log” and “y_log” arguments for x and y logarithmic scales
New argument labels_positions, allows to import a previously saved labels positions file
Toggle “export labels position” visibility when labels change
Bugfix : incoherent data on mouseover after data updating
Bugfix : unable to export SVG when text contains non-Latin1 characters

Upgrade to d3v4
Add data argument to specify variables from a data frame with NSE
New menu accessible directly from the graph to allow zoom resetting, SVG export, etc.
Continuous color scales are now supported. They are automatically guessed from col_var characteristics, but can be forced with the col_continuous argument.
Categorical variables are now allowed for x and y.
New lines argument to add custom lines to the plot
New argument : opacity_var to specify points opacity individually with a vector. Use point_opacity to specify a constant opacity.
New argument : url_var to specify URLs to be opened when a point is clicked.
Add click_callback parameter, opening a hook for a click event listener (thanks @detule and @harveyl888)
Add zoom_callback parameter, opening a hook for a zoom event listener
New “export labels position” feature
New settings hover_size and hover_opacity (thanks @nicolabo)
Axes and legend font size customization with axes_font_size and legend_font_size (thanks @fineswag)
Better legend transitions when updating
JavaScript code split into several subfiles
Left margin customization with the left_margin argument
More precise font-family specification for (hopefully) better rendering
Bugfix : blank plot when only one color passed to colors (thanks @chewth)

New feature : d3 lasso plugin integration, initial work by @timelyportfolio
New feature : allow to draw confidence ellipses for all points or for col_var groups
Bugfix : underscores appearing instead of spaces in legend text (thanks @TimBock)
Bugfix : xlim and ylim not taken ignored when fixed = TRUE (thanks @TimBock)
Bugfix : legend must not be displayed when legend_width = 0 and fixed = TRUE (thanks @TimBock)
Bugfix : wrong legend hover highlighting when the label is “0”
Bugfix : convert NA to “NA” in color and symbol mapping variables

Fix zoom reset when several charts in the same shiny app
Switch to 20 colors ordinary scales if there are more than 10 color variable levels
Bugfix : wrong svg reference passed to hover legend functions when several scatterD3 instances in the same shiny app
Make point labels updatable
Manage changes of unit_circle settings

Bugfixes for when several scatterD3 instances are in the same shiny app
Fix fixed 1:1 aspect ratio not working as intended
New unit_circle argument to draw a unit circle around origin
Text labels are placed below the corresponding arrow by default when y < 0
New type_var argument, which allows to selectively draw arrows (starting from origin) instead of points

Charts integrated into a shiny app are now fully updatable : when data or settings change, the plot is updated with smooth transitions instead of being redrawn. See the transitions and key_var arguments.
HTML DOM id of elements linked to the “Reset zoom” and “Export to SVG” features can now be given as arguments.

Add colors argument to specify a custom set of point colors. A named vector can be used to directly map values to colors (Thanks @timelyportfolio)
Complete code reorganisation, much cleaner
New legend_width argument
Use d3-legend plugin for legend generation (https://d3-legend.susielu.com/)
New xlim and ylim arguments for manual axis limits specification (Thanks @tinyheero)
Fix tooltips not showing under Shiny/Bootstrap (Thanks @tinyheero for reporting)
Fix tooltip content when several scatter plots are displayed on the same page
Respect custom label position when zooming

scatterD3 (development version)