2021-04 Luminance Masks in R Graphics
This document describes an extension of the support for masks in R graphics to allow luminance masks as well as alpha masks. Paul Murrell Download
2021-03 Stroking and Filling Paths in R Graphics
This document describes an expansion of the R graphics engine to support stroking and filling paths. Paul Murrell Download
2021-02 Groups, Compositing Operators, and Affine Transformations in R Graphics
This document describes an expansion of the R graphics engine to support a number of new graphical features: isolated groups, compositing operators, and affine transformations. …
2021-01 Accessing ‘grid’ from ‘ggplot2’
This report describes the ‘gggrid’ package, which provides a convenient interface for making use of raw ‘grid’ functions in combination with ‘ggplot2’. The ‘gggrid’ package …
2020-06 Letting Go of Type 1 Fonts
The ‘dvir’ package for R is limited in that it is only known to work on an (Ubuntu) Linux distribution with (at least) a full …
2020-05 Adding TikZ support to ‘dvir’
This report describes an update to the R package ‘dvir’ to add support for the TikZ graphics package. This allows R users to make use …
2020-04 Catching up with R Graphics
This document describes an expansion of the R graphics engine to support a number of new graphical features: gradients, patterns, masks, and clipping paths. Paul …
2020-03 Improved Clipping in the R Graphics Engine
This report describes improvements to clipping in the R graphics engine. These changes will be of particular interest to maintainers of R graphics device packages …
2020-02 The Agony and the Ecstacy: Adding LuaTeX support to ‘dvir’
This report describes an update to the R package ‘dvir’ to add support for the LuaTeX engine. The immediate advantage of this support is the …
2020-01 Visual Testing for Graphics in R
This report describes the ‘gdiff’ package for R, which provides tools for performing visual tests on graphical output. Visual testing is essential for checking that …