2017-03 Offset Curves for Variable-Width X-splines
This document describes an algorithm for generating offset curves for X-splines, where the width of the X-spline is allowed to vary along its length. The …
2017-02 Variable-Width Line Ends and Line Joins
This document describes algorithms for generating line-end and line-join styles for lines that have a variable width. The algorithms are implemented in the ‘vwline’ package …
2017-01 Variable-width lines in R
This document describes the ‘vwline’ package, which provides an R interface for drawing variable-width curves. The package provides functions to draw line segments through a …
2016-15 Automating R Demonstration Videos
This document describes a proof-of-concept for producing R demonstration videos in a fully-automated manner. The “script” for the video consists of a text file containing …
2016-14 ‘DOM’ version 0.4
This report describes changes in version 0.4 of the ‘DOM’ package for R. The main change in this version is the addition of new functions …
2016-13 ‘DOM’ Version 0.3
This report describes changes in version 0.3 of the ‘DOM’ package for R. This version represents a major refactoring of the package code, including its …
2016-12 ‘DOM’ Version 0.2
This report describes changes in version 0.2 of the ‘DOM’ package for R. Version 0.1 of ‘DOM’ allowed HTML content to be added to a …
2016-11 The Butterfly Affectation
This report documents a variety of approaches to including an external vector image within an R plot. The image presents particular challenges because it contains …
2016-10 A transformable markup document format
Many technologies now exist for writing a document in a format that can be transformed into various output formats for sharing. This report proposes that …
2016-09 An Introduction to the ‘DOM’ Package
The ‘DOM’ package for R provides functions to dynamically manipulate the content of a web page that is being viewed within a web browser. The …