Returns a logical vector (of TRUE/FALSE) indicating if the given point index is selected in the RGL interface.
返回一个逻辑向量(TRUE / FALSE)表示,如果给定的点指数选择在RGL接口。
用法----------Usage----------
sculpt3d.selected()
值----------Value----------
A vector of TRUE/FALSE values of equal length to the number of datapoints provided to sculpt3d().
TRUE / FALSE值提供给sculpt3d()的数据点的数目相等的长度的向量。