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Rev 85021 Rev 86005
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    specified as just a numeric value.}
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    specified as just a numeric value.}
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  \item{extend}{What happens outside the start and end of the gradient
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  \item{extend}{What happens outside the start and end of the gradient
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    (see Details).}
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    (see Details).}
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  \item{cx1, cy1, r1, cx2, cy2, r2}{The centre and radius of the start
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  \item{cx1, cy1, r1, cx2, cy2, r2}{The centre and radius of the start
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    and end circles for a radial gradient.}
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    and end circles for a radial gradient.}
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  \item{grob}{A grob (or a gTree) that will be drawn as the tile in
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  \item{grob}{A grob (or a \I{gTree}) that will be drawn as the tile in
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    a pattern fill.}
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    a pattern fill.}
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  \item{x, y, width, height}{The size of the tile for a pattern fill.}
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  \item{x, y, width, height}{The size of the tile for a pattern fill.}
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  \item{just, hjust, vjust}{The justification of the tile relative to
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  \item{just, hjust, vjust}{The justification of the tile relative to
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    its location.}
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    its location.}
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  \item{gp}{Default graphical parameter settings for the tile.}
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  \item{gp}{Default graphical parameter settings for the tile.}
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  grob, and specify \code{extend="repeat"}.
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  grob, and specify \code{extend="repeat"}.
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  On viewports, gradients and patterns are relative to the entire
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  On viewports, gradients and patterns are relative to the entire
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  viewport, unless \code{group = FALSE}, in which case they are
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  viewport, unless \code{group = FALSE}, in which case they are
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  relative to individual grobs as they are drawn.
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  relative to individual grobs as they are drawn.
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  On gTrees, gradients and patterns are relative to a bounding
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  On \I{gTree}s, gradients and patterns are relative to a bounding
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  box around all of the children of the gTree,
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  box around all of the children of the \I{gTree},
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  unless \code{group = FALSE}, in which case they are
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  unless \code{group = FALSE}, in which case they are
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  relative to individual children as they are drawn.
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  relative to individual children as they are drawn.
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  On grobs, gradients and patterns are relative to a bounding
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  On grobs, gradients and patterns are relative to a bounding
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  box around all of the shapes that are drawn by the grob,
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  box around all of the shapes that are drawn by the grob,
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  unless \code{group = FALSE}, in which case they are
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  unless \code{group = FALSE}, in which case they are