#' NetCDF dimension
#'
#' Get information about the dimensions in a NetCDF source.
#' @param x file address or handle
#' @param ... ignored
#'
#' @name nc_dims
#' @export
nc_dims <- function(x, ...) {
UseMethod("nc_dims")
}
#' @name nc_dims
#' @export
nc_dims.character <- function(x, ...) {
if (nchar(x) < 1) stop("NetCDF source cannot be empty string")
nc <- RNetCDF::open.nc(x)
on.exit(RNetCDF::close.nc(nc), add = TRUE)
nc_dims(nc)
}
#' @name nc_dims
#' @export
nc_dims.NetCDF <- function(x, ...) {
dplyr::bind_rows(lapply(seq_len(nc_inq(x)$ndims), function(i) nc_dim(x, i-1)))
}
nc_dims_internal <- function(x, ndims, ...) {
dplyr::bind_rows(lapply(seq_len(ndims), function(i) nc_dim(x, i-1)))
}
#' @name nc_dims
#' @export
nc_dims.ncdf4 <- function(x, ...) {
nc_dims(x$filename)
}
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