101 lines
2.2 KiB
Plaintext
101 lines
2.2 KiB
Plaintext
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R Under development (unstable) (2022-03-19 r81942) -- "Unsuffered Consequences"
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Copyright (C) 2022 The R Foundation for Statistical Computing
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Platform: x86_64-pc-linux-gnu (64-bit)
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R is free software and comes with ABSOLUTELY NO WARRANTY.
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You are welcome to redistribute it under certain conditions.
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Type 'license()' or 'licence()' for distribution details.
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R is a collaborative project with many contributors.
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Type 'contributors()' for more information and
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'citation()' on how to cite R or R packages in publications.
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Type 'demo()' for some demos, 'help()' for on-line help, or
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'help.start()' for an HTML browser interface to help.
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Type 'q()' to quit R.
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> library(grid)
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>
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> ## Set up
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> grid.newpage()
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> pushViewport(viewport(name="a.vp"))
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> grid.rect(name="a.grob")
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>
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> ## Default finds only grobs (no vpPath)
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> result <- grid.grep("a", grep=TRUE, global=TRUE)
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> result
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[[1]]
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a.grob
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> attr(result[[1]], "vpPath")
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[1] ""
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>
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> ## 'viewports = TRUE' (and 'vpPath = TRUE')
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> ## finds grobs and viewports (AND vpPath on grobs)
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> result <- grid.grep("a", grep=TRUE, global=TRUE, viewports=TRUE)
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> result
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[[1]]
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a.vp
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[[2]]
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a.grob
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> attr(result[[2]], "vpPath")
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[1] "a.vp"
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>
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> ## 'viewports = FALSE' and 'vpPath = TRUE'
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> ## finds only grobs AND vpPath on grobs
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> result <- grid.grep("a", grep=TRUE, global=TRUE, vpPath=TRUE)
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> result
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[[1]]
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a.grob
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> attr(result[[1]], "vpPath")
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[1] "a.vp"
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>
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> ## 'viewports = TRUE' and 'vpPath = FALSE'
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> ## finds viewports and grobs (no vpPath)
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> result <- grid.grep("a", grep=TRUE, global=TRUE, viewports=TRUE, vpPath=FALSE)
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> result
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[[1]]
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a.vp
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[[2]]
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a.grob
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> attr(result[[2]], "vpPath")
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[1] ""
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>
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> ###########################
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> ## global=FALSE versions
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>
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> ## grob (no vpPath)
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> result <- grid.grep("a", grep=TRUE)
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> result
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a.grob
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> attr(result, "vpPath")
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[1] ""
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> ## viewport (NULL vpPath)
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> result <- grid.grep("a", grep=TRUE, viewports=TRUE)
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> result
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a.vp
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> attr(result, "vpPath")
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NULL
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> ## grob with vpPath
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> result <- grid.grep("a", grep=TRUE, vpPath=TRUE)
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> result
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a.grob
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> attr(result, "vpPath")
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[1] "a.vp"
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> ## viewport (NULL vpPath)
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> result <- grid.grep("a", grep=TRUE, viewports=TRUE, vpPath=FALSE)
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> result
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a.vp
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> attr(result, "vpPath")
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NULL
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>
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> proc.time()
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user system elapsed
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0.270 0.046 0.300
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