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Contents
require "numru/netcdf.rb"
require "numru/gphys/attribute.rb"
require "numru/gphys/netcdf_convention"
=begin
=class Attribute_NetCDF
A class to handle NetCDF attributes in the same way as in the
NumRu::Attribute class.
=end
module NumRu
class AttributeNetCDF
def initialize( ncvar )
raise TypeError unless NetCDFVar===ncvar || NetCDF===ncvar
@nv = ncvar
convention = NetCDF_Conventions.find(ncvar.file)
extend( convention::Attribute_Mixin )
end
def [](name)
( att = @nv.att(name) ) ? att.get : att
end
def []=(name, val)
@nv.put_att(name,val)
val
end
def copy(to=nil)
# deep copy (clone), or addition to "to" if given.
# ATTENTION! If the destination "to" is not given, it will
# be an Attribute (not AttributeNetCDF), which is on memory.
if to == nil
to = NumRu::Attribute.new
end
self.each{|key, val|
to[key] = val
}
to
end
def rename(key_from, key_to)
att = @nv.att(key_from)
if att==nil; raise "attribute #{key_from} does not exist"; end
att.name= key_to
end
def each
@nv.each_att{|att| yield(att.name, att.get)}
end
def each_key
@nv.each_att{|att| yield(att.name)}
end
def length
@nv.natts
end
def keys
@nv.att_names
end
def delete(key)
@nv.att(key).delete
end
def delete_if
each{|key,val| delete(key) if yield(key,val)}
end
def has_key?(key)
@nv.att(key) ? true : false
end
alias :include? :has_key?
alias :key? :has_key?
end
end
Version data entries
18 entries across 18 versions & 2 rubygems