Blog Archives

2019-01 A Geometry Engine Interface for ‘grid’

March 3, 2019
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This report describes a new function in ‘grid’ called grobCoords and a new package called ‘gridGeometry’ that combines grobCoords with the ‘polyclip’ package to provide ...

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2018-13 Rendering HTML Content in R Graphics

December 16, 2018
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This report describes several R packages that allow HTML content to be rendered as part of an R plot. The core package is called ‘layoutEngine’, ...

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2018-12 MetaPost Three Ways

December 2, 2018
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This report describes three different approaches to communicating between R and MetaPost: importing the PostScript output from MetaPost with the ‘grImport’ package; calling the mpost ...

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2018-11 Variable-Width Bezier Splines in R

November 1, 2018
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This report describes support for a new type of variable-width line in the ‘vwline’ package for R that is based on Bezier curves. There is ...

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2018-09 Importing General-Purpose Graphics in R

September 19, 2018
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This report discusses some problems that can arise when attempting to import PostScript images into R, when the PostScript image contains coordinate transformations that skew ...

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2018-08 Revisiting Mathematical Equations in R: The ‘dvir’ package

August 30, 2018
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This report describes an R package called ‘dvir’ that aims to use TeX as a layout engine, but performs all rendering within R. The package ...

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2018-07 Echoes of the Future

July 19, 2018
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This report discusses ways to combine graphics output from the ‘graphics’ package and the ‘grid’ package in R and introduces a new function echoGrob in ...

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2018-06 Rasterizing Chromatograms

June 12, 2018
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This report describes an application of the ‘rasterize’ package for R. We rasterize (just) the line segments of two chromatograms in order to render one ...

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2018-05 Selective Raster Graphics

May 24, 2018
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This report explores ways to render specific components of an R plot in raster format, when the overall format of the plot is vector. For ...

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2018-04 Extreme Makeover: R Graphics Edition

April 29, 2018
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This report describes a complex R graphics customisation example using functions from the ‘grid’ and ‘gridGraphics’ packages and introduces two new functions in ‘grid’: deviceLoc ...

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