Class: NumRu::AttributeNetCDF

Inherits:
Object
  • Object
show all
Defined in:
lib/numru/gphys/attributenetcdf.rb

Instance Method Summary collapse

Constructor Details

#initialize(ncvar) ⇒ AttributeNetCDF

Returns a new instance of AttributeNetCDF.

Raises:

  • (TypeError) 


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# File 'lib/numru/gphys/attributenetcdf.rb', line 13

def initialize( ncvar )
	 raise TypeError unless NetCDFVar===ncvar || NetCDF===ncvar
	 @nv = ncvar
	 convention = NetCDF_Conventions.find(ncvar.file)
	 extend( convention::Attribute_Mixin )
end

Instance Method Details

#[](name) ⇒ Object 



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# File 'lib/numru/gphys/attributenetcdf.rb', line 20

def [](name)
	  ( att = @nv.att(name) ) ? att.get : att
end

#[]=(name, val) ⇒ Object 



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# File 'lib/numru/gphys/attributenetcdf.rb', line 24

def []=(name, val)
	 @nv.put_att(name,val)
	 val
end

#copy(to = nil) ⇒ Object 



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# File 'lib/numru/gphys/attributenetcdf.rb', line 29

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

#delete(key) ⇒ Object 



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# File 'lib/numru/gphys/attributenetcdf.rb', line 64

def delete(key)
	 @nv.att(key).delete
end

#delete_if ⇒ Object 



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# File 'lib/numru/gphys/attributenetcdf.rb', line 68

def delete_if
	 each{|key,val| delete(key) if yield(key,val)}
end

#each ⇒ Object 



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# File 'lib/numru/gphys/attributenetcdf.rb', line 48

def each
	 @nv.each_att{|att| yield(att.name, att.get)}
end

#each_key ⇒ Object 



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# File 'lib/numru/gphys/attributenetcdf.rb', line 52

def each_key
	 @nv.each_att{|att| yield(att.name)}
end

#has_key?(key) ⇒ Boolean Also known as: include?, key?

Returns:

  • (Boolean) 


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# File 'lib/numru/gphys/attributenetcdf.rb', line 72

def has_key?(key)
	 @nv.att(key) ? true : false
end

#keys ⇒ Object 



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# File 'lib/numru/gphys/attributenetcdf.rb', line 60

def keys
	 @nv.att_names
end

#length ⇒ Object 



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# File 'lib/numru/gphys/attributenetcdf.rb', line 56

def length
	 @nv.natts
end

#rename(key_from, key_to) ⇒ Object 



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# File 'lib/numru/gphys/attributenetcdf.rb', line 42

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