Hello Folks,

I'm getting an error trying to rotate after union operations:

    library(spatstat)
    library(gpclib)
    spatstat.options(gpclib=TRUE)
    rotate( union.owin( square(), disc() ) )

        Polygon  contains duplicated vertices
        Error in owin(poly = bdry, unitname = unitname(X)) :
          Polygon data contain duplicated vertices

any ideas?

thanks,
allie

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