index.gdsn {gdsfmt} | R Documentation |
Get a specified GDS node.
index.gdsn(node, path=NULL, index=NULL, silent=FALSE)
node |
an object of class |
path |
the path specifying a GDS node with '/' as a separator |
index |
a numeric vector or characters, specifying the path; it is
applicable if |
silent |
if |
If index
is a numeric vector, e.g., c(1, 2)
, the result is
the second child node of the first child of node
. If index
is
a vector of characters, e.g., c("list", "x")
, the result is the child
node with name "x"
of the "list"
child node.
An object of class gdsn.class
for the specified node.
Xiuwen Zheng
http://github.com/zhengxwen/gdsfmt
cnt.gdsn
, ls.gdsn
, name.gdsn
,
add.gdsn
, delete.gdsn
# cteate a GDS file f <- createfn.gds("test.gds") # add a list to "test.gds" node <- add.gdsn(f, name="list", val=list(x=c(1,2), y=c("T","B","C"), z=TRUE)) f index.gdsn(f, "list/x") index.gdsn(f, index=c("list", "x")) index.gdsn(f, index=c(1, 1)) index.gdsn(f, index=c("list", "z")) ## Not run: index.gdsn(f, "list/x/z") # Error in index.gdsn(f, "list/x/z") : Invalid path "list/x/z"! ## End(Not run) # return NULL index.gdsn(f, "list/x/z", silent=TRUE) # close the GDS file closefn.gds(f) # delete the temporary file unlink("test.gds", force=TRUE)