objects slot of a
simList objectsimList environment slot,
and optionally has desired attributes.
checkObject(sim, name, object, layer, ...)
"checkObject"(sim, name, object, layer, ...)
"checkObject"(sim, name, object, layer, ...)
"checkObject"(sim, name, object, layer, ...)
"checkObject"(sim, name, object, layer, ...)
"checkObject"(sim, name, object, layer, ...)simList object.name is a Raster* object.TRUE indicating object exists; FALSE if not.
library.