Display labels on a 3D pie chart
pie3D.labels.Rd
Displays labels on a 3D pie chart.
Usage
pie3D.labels(radialpos,radius=1,height=0.1,theta=pi/6,
labels,labelcol=par("fg"),labelcex=1.5,labelrad=1.25,minsep=0.3)
Arguments
- radialpos
Position of the label in radians
- 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
- labels
The label to display
- labelcol
The color of the labels
- labelcex
The character expansion factor for the labels
- labelrad
The expansion for the labels around the pie.
- minsep
The minimum angular separation between label positions.
Details
pie3D.label displays labels on a 3D pie chart. The positions of the labels are given as angles in radians (usually the bisector of the pie sectors). As the labels can be passed directly to pie3D, this function would probably not be called by the user.
pie3D.labels tries to separate labels that are placed closer than minsep radians. This simple system will handle minor crowding of labels. If labels are very crowded, capturing the return value of pie3D and editing the label positions may allow the user to avoid manually placing labels.