3d - tessellation in 3 dimensions with R -

i have set of 3d points (space (x,y) , time t) , want construct quadrature using if possible dirichlet tessellation , important, compute quadrature weights, meaning volume of dirichlet 3 dimensional 'tiles'. of in r. found geometry package doesn't compute volumes. know r packages me this?

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here code:

library(geometry)  library(rgl)  library(scatterplot3d) x <- runif(20, 0, 1)  y <- runif(20, 0, 1)  z <- runif(20, 0, 1) d <- cbind(x, y, z)  scatterplot3d::scatterplot3d(d)  t <- delaunayn(d)