plotrix: draw.tilted.sector – R documentation

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Documentation

plotrix

draw.tilted.sector

Display a 3D pie sector

Description

Displays a 3D pie sector.

Usage

draw.tilted.sector(x=0,y=0,edges=NA,radius=1,height=0.1,theta=pi/6,
  start=0,end=pi*2,border=par("fg"),col=par("bg"),explode=0,shade=0.8)

Arguments

`x,y`	Position of the center of the pie sector in user units
`edges`	Number of edges to draw a complete ellipse
`radius`	the radius of the pie in user units
`height`	the height of the pie in user units
`theta`	The angle of viewing in radians
`start`	Starting angle of the sector
`end`	Ending angle of the sector
`border`	The color of the sector border lines
`col`	Color of the sector
`explode`	How far to "explode" the sectors in user units
`shade`	If > 0 and < 1, the proportion to reduce the brightness of the sector color to get a better 3D effect.

Details

draw.tilted.sector displays a single 3D pie sector. It is probably only useful when called from pie3D. The shade argument proportionately reduces the brightness of the RGB color of the sector to produce a top lighted effect.

If explode is zero, only the top and outer side of each sector will be displayed. This will sometimes fix the problem of a pie with one huge sector greater than 3*pi/2 that cannot otherwise be drawn.

Value

The bisector of the pie sector in radians.

Author(s)

Jim Lemon