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\name{grid.circle}
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\name{grid.circle}
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\alias{grid.circle}
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\alias{grid.circle}
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%- Also NEED an `\alias' for EACH other topic documented here.
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\title{ Draw a Circle }
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\title{ Draw a Circle }
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\description{
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\description{
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  This function draws a circle.
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  This function draws a circle.
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}
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}
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\usage{
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\usage{
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grid.circle(x=0.5, y=0.5, r=0.5, default.units="npc",
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grid.circle(x=0.5, y=0.5, r=0.5, default.units="npc",
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            gp=gpar(), draw=TRUE, vp=NULL)
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            gp=gpar(), draw=TRUE, vp=NULL)
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}
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}
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%- maybe also `usage' for other objects documented here.
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\arguments{
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\arguments{
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  \item{x}{A numeric vector or unit object specifying x-locations.}
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  \item{x}{A numeric vector or unit object specifying x-locations.}
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  \item{y}{A numeric vector or unit object specifying y-locations.}
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  \item{y}{A numeric vector or unit object specifying y-locations.}
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  \item{r}{A numeric vector or unit object specifying radii.}
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  \item{r}{A numeric vector or unit object specifying radii.}
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  \item{default.units}{A string indicating the default units to use
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  \item{default.units}{A string indicating the default units to use
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\author{Paul Murrell}
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\author{Paul Murrell}
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\seealso{
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\seealso{
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  \link{Grid},
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  \link{Grid},
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  \code{\link{viewport}}
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  \code{\link{viewport}}
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}
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}
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\examples{
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\keyword{dplot}
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}
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\keyword{ dplot }%-- one or more ...
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