For print.objsurf
, print.summary.objsurf
,
plot.objsurf
and image.objsurf
the value is NULL
.
For contour.objsurf
and persp.objsurf
the value is described in the help for
contour.default
and persp.default
respectively.
For summary.objsurf
the result is a list, of class
summary.objsurf
, containing summary information. This list is
printed in sensible format by print.summary.objsurf
.