Displays a 3D pie sector.
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)The bisector of the pie sector in radians.
Position of the center of the pie sector in user units
Number of edges to draw a complete ellipse
the radius of the pie in user units
the height of the pie in user units
The angle of viewing in radians
Starting angle of the sector
Ending angle of the sector
The color of the sector border lines
Color of the sector
How far to "explode" the sectors in user units
If > 0 and < 1, the proportion to reduce the brightness of the sector color to get a better 3D effect.
Jim Lemon
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.
pie3D