NEWS

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gggenes 0.7.0.9000

gggenes 0.7.0 (2026-07-05)

New features

• geom_subgene_arrow() and geom_subgene_label() now support polar coordinates.

Minor improvements and fixes

• gggenes now validates layer input and reports problems with clearer, more consistent error messages (#91, #92).
• gggenes now transforms data coordinates once per panel rather than once per glyph, speeding up the rendering of layers with many glyphs (#113).
• The rendering pipeline is refactored to share more logic across geoms (#93, #109).
• Grid drawing now uses NPC rather than native coordinates internally (#94).
• The package documentation is updated throughout, and the README now presents polar-coordinate drawing with coord_polar() as a supported feature rather than as experimental (#115, #116, #117, #122).
• The declared dependency floors are now honest: ggplot2 (>= 3.4.0) for the linewidth aesthetic, rlang (>= 1.0.0) for rlang::caller_arg(), and ggfittext (>= 0.9.0) for polar-coordinate text fitting (#107).
• geom_feature() and geom_terminator() now document that their linewidth is expressed in points rather than millimetres, unlike geom_gene_arrow() and the ggplot2 convention; this inconsistency will be reconciled when these geoms are superseded in gggenes 1.0.0 (#121).
• geom_feature_label() now draws when the forward aesthetic is not mapped (#98).
• geom_feature_label() now sizes the label box of a forward = TRUE feature to the full panel in polar coordinates, spanning to the theta edge at 2 * pi rather than to 1 radian (#112).
• geom_feature_label() and geom_terminator_label() now draw on the opposite side of the molecule with a negative feature_height or terminator_height, and their height-parameter documentation is clarified (#90, #99).
• geom_gene_arrow(), geom_subgene_arrow(), geom_feature(), and geom_terminator() now handle the deprecated size aesthetic consistently, each emitting a single deprecation warning (#102).
• geom_gene_arrow() and geom_subgene_arrow() legend keys now apply alpha to the outline colour as well as the fill, matching the drawn geoms (#101).
• geom_gene_label() and geom_subgene_label() register the align parameter explicitly (#104).
• geom_subgene_label() now draws in polar coordinates with only its required aesthetics mapped, without also needing xmin/xmax (#106).
• Polar segmentation now keeps the endpoint of a very short edge, so a glyph edge shorter than one segment is drawn rather than collapsing to a single point (#114).
• make_alignment_dummies() now gives a more informative error when on is absent from the mapped id column (#119).

gggenes 0.6.0 (2025-12-14)

Major changes

• Add new geom_terminator() and geom_terminator_label()
• Add support for polar coordinates

Minor changes

• Deprecate the size aesthetic in favour of linewidth (size deprecated as of ggplot2 3.4.0)
• Use the cli package for messages, warnings etc.

gggenes 0.5.1 (2023-09-05)

Minor changes

• Fix the 'ggfittext-package' documentation after a breaking change to roxygen2

gggenes 0.5.0 (2023-03-28)

Major changes

• Add new geom_feature() and geom_feature_label()
• Add support for flipped coordinates with coord_flip() (#38)

Minor changes

• Explicit coercion of the forward value to logical, more useful values for the forward aesthetic in example data, and fix an error in README and introductory vignette (-1 does not coerce to FALSE...)
• Improve handling of NA id values in make_alignment_dummies() (#51, thanks @NanamiKubota)
• Update element_line to use linewidth rather than size (size deprecated as of ggplot2 3.4.0)

Bug fixes

• Fix bug where height argument to geom_gene_label() and geom_subgene_label() were being ignored (#40, thanks @jvanbelzen)

gggenes 0.4.1 (2020-12-10)

Minor changes

• More useful example for the forward aesthetic in the README and example_genes (thanks @rickbeeloo)

Bug fixes

• Fix bug in checking position of subgenes relative to the parent gene (#21, thanks @mchiapello)
• Add 'orientation' column to example_subgenes and correct some errors in the documentation for both example data frames
• Make vdiffr tests conditional

gggenes 0.4.0 (2019-06-24)

Major changes

• Add new geom_subgene_arrow() (contributed by @zdk123)
• Add new geom_subgene_label()
• Support new version of ggfittext (0.8.0)

Bug fixes

• Fix failing visual tests
• Fix space in figure file name
• Replace expect_error with the more reliable expect_silent in tests
• Fix bugs in several tests
• Add visual testing with vdiffr
• Misc. small bug fixes and typo corrections
• Fix compatibility with tidyeval changes in ggplot2 v2.3.0

gggenes 0.3.1 (2018-06-16)

Bug fixes

• Now actually compatible with ggplot2 v2.3.0

gggenes 0.3.0 (2018-05-26)

Major changes

• geom_gene_arrow() now supports forward aesthetic (#3 and #5, thanks @adomingues and @jasonserviss)
• geom_gene_label() added (#3, thanks @adomingues)
• Compatible with ggplot2 v2.3.0

Minor changes

• Change R version dependency to fix 'patchlevel' error on CMD check
• Add support for both pre- and post- ggplot2 v2.3.0 versions of aes()
• Edit docs and README

Bug fixes

• Remove README.html so GitHub renders README correctly

gggenes 0.2.0 (2017-08-24)

Major changes

• Remove 'dplyr' dependency
• Update documentation
• Add vignette

Bug fixes

• Fix drawing of geom_gene_arrow()