Selective Raster Graphics

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
example, we demonstrate ways to draw raster data symbols within a PDF
scatter plot. A general solution is provided by the grid.rasterize
function from the R package ‘rasterize’.

本报告探讨在整体图表格式为矢量图时，如何将 R 图表的具体组件渲染为栅格格式的方法。例如，我们展示了如何在 PDF 散点图中绘制栅格数据符号。R 包‘rasterize’中的grid.rasterize函数提供了一般性的解决方案。