Class: CodeRunner::Gs2::NetcdfSmartReader

Inherits:
Object
  • Object
show all
Defined in:
lib/gs2crmod/read_netcdf.rb

Direct Known Subclasses

OldNetcdfSmartReader

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ NetcdfSmartReader

Returns a new instance of NetcdfSmartReader.



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# File 'lib/gs2crmod/read_netcdf.rb', line 41

def initialize(file)
	@file = file
end

Instance Method Details

#axiskit(variable, options) ⇒ Object 



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# File 'lib/gs2crmod/read_netcdf.rb', line 90

def axiskit(variable, options)
	GraphKit::AxisKit.autocreate(data: read_variable(variable, options), units: @file.var(variable).att('Units').get, title: @file.var(variable).att('Description').get.sub(/(,|summed|average).*$/, '').sub(/[vV]alues of (the )?/, '').sub(/ coordinate/, ''))
end

#check_no_r(non_flat_dims) ⇒ Object 



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# File 'lib/gs2crmod/read_netcdf.rb', line 115

def check_no_r(non_flat_dims)
	raise "Please specify the r index for real or imaginary" if non_flat_dims.include? @file.dim('r')
end

#dim_end(name, options) ⇒ Object 



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# File 'lib/gs2crmod/read_netcdf.rb', line 77

def dim_end(name, options)
	sym = name.to_sym
	if i=options[sym + :_index]
		return i-1
	elsif i=options[sym + :_element]
		return i
	elsif i=options[sym + :max]
		return i
	else
		return -1
	end
end

#dim_start(name, options) ⇒ Object 



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# File 'lib/gs2crmod/read_netcdf.rb', line 62

def dim_start(name, options)
	sym = name.to_sym
	if i=options[sym + :_index]
		return i-1
	elsif i=options[sym + :_element]
		return i
	elsif i=options[sym + :min]
		return i
	else
		return 0
	end
end

#dimension_variable_name(n) ⇒ Object 



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# File 'lib/gs2crmod/read_netcdf.rb', line 93

def dimension_variable_name(n)
	case n
	when 'X'
		'kx'
	when 'Y'
		'ky'
	when 'z'
		'kz'
	when 'e'
		'energy'
	when 'l'
		'lambda'
	when 't'
		n
	when 'm'
		'hermite'
	when 'p'
		'hankel'
	else
		raise "Unknown dimension #{n}"
	end
end

#dimensions(varname) ⇒ Object 



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# File 'lib/gs2crmod/read_netcdf.rb', line 44

def dimensions(varname)
	#p 'varname', varname
	@file.var(varname).dims
end

#ends(dims, options) ⇒ Object 



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# File 'lib/gs2crmod/read_netcdf.rb', line 74

def ends(dims, options)
	dims.map{|d| dim_end(d.name, options)}
end

#graphkit(variable, options) ⇒ Object 



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# File 'lib/gs2crmod/read_netcdf.rb', line 118

def graphkit(variable, options)
	non_flat_dims=dimensions(variable).find_all{|dim| dim_start(dim.name, options) != dim_end(dim.name, options) and dim.length != 1}
	check_no_r(non_flat_dims)
	axiskits = non_flat_dims.map{|dim| dimvar = dimension_variable_name(dim.name); axiskit(dimvar, options)} + [axiskit(variable, options)]
	hash = {}
	axes = [:x, :y, :z, :f]
	axiskits.each_with_index{|ax, i| hash[axes[i]] = ax}
	kit = GraphKit.autocreate(hash)
	opts = options.dup
	opts.delete(:graphkit_name)
	#kit.data[0].title += " with options: " + opts.to_s
	kit.data[0].title += " " + opts.to_s.gsub(/_(index|element)/, '')
	if kit.zlabel
		kit.zlabel = "'#{kit.zlabel}' rotate by 90"
		#kit.zlabel = nil
	end
	kit
end

#read_variable(varname, options) ⇒ Object 



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# File 'lib/gs2crmod/read_netcdf.rb', line 48

def read_variable(varname, options)
	#start = get_start(dims, options)
	dims = dimensions(varname)
	narray = @file.var(varname).get('start'=>starts(dims, options), 'end'=>ends(dims, options))
	shape = narray.shape
	shape.delete_if{|i| i==1}
	#p 'shape', shape; STDIN.gets
	narray.reshape!(*shape)
	narray

end

#starts(dims, options) ⇒ Object 



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# File 'lib/gs2crmod/read_netcdf.rb', line 59

def starts(dims, options)
	dims.map{|d| dim_start(d.name, options)}
end