Class: TokFile::Eqdsk

Inherits:
Object
  • Object
show all
Defined in:
lib/tokfile/eqdsk.rb

Constant Summary collapse

DATANAMES =

attr_accessor :rboxlen, :zboxlen, :r0exp, :rboxlft

[
	:rboxlen, :zboxlen, :r0exp, :rboxlft, :dummy,
	:raxis, :zaxis, :psiaxis, :dummy, :b0exp,
	:current, :dummy, :dummy, :dummy, :dummy,
	:dummy, :dummy, :dummy, :dummy, :dummy,
	:t, 
	:pr, 
	:ttprime, 
	:pprime, 
	:psi, 
	:q, 
	:nbound, :nlimiter, 
	:bound,
  :limiter
]
FMT = 
"%16.9e" * 5 + "\n"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ Eqdsk

Returns a new instance of Eqdsk.



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# File 'lib/tokfile/eqdsk.rb', line 48

def initialize(file)

	iline = 0
	counter = 0

	#filehandle = File.open(file, 'r')

	lines = File.read(file).split("\n")
	#@datastarts = DATANAMES.inject({}){|h, name| h[name] = nil; h}

	#line1 = filehandle.gets
	#@nrbox, @nzbox  = filehandle.gets.split(/\s+/).slice(-2..-1).map{|s| eval(s)}
	@nrbox, @nzbox  = lines[0].split(/\s+/).slice(-2..-1).map{|s| eval(s)}
	#@rboxlen, @zboxlen, @r0exp, @rboxlft, dummy = read(filehandle.gets)
	#@raxis, @zaxis, @psiaxis, dummy, @b0exp = read(filehandle.gets)
	#@current, dummy, dummy, dummy, dummy = read(filehandle.gets)
	#dummy, dummy, dummy, dummy, dummy = read(filehandle.gets)
	array = []
	i = 1
	vb2 = TokFile.verbosity > 1
	
	if vb2
		eputs
		eputs "Reading data from eqdsk file #{file}."
		eputs
	end
	total_size = 0
	DATANAMES.each do |name|
		sz = size(name)
		total_size += sz
		#ep ['name', name, 'size', sz]
		if vb2
			Terminal.erewind(1)
			eputs "#{name}(#{sz})#{Terminal::CLEAR_LINE}" if vb2
		end
		if array.size < sz
			#array += read(filehandle.gets)
			#array += read(lines[i])
			#i+=1
       begin
         array += read(lines.slice(i...(i+=(sz.to_f/5.0).ceil)).join(' '))
       rescue NoMethodError
         $stderr.puts "Finished reading at #{name}"
         break
       end
			#array += lines.slice(i...(i+=(sz.to_f/5.0).ceil)).join(' ')

			#filehandle.gets.scanf("%e"){|scan| array.push scan[0]}
		end
		if array.size == sz
			data = array
			array = []
		else
		  data = []
			while data.size < sz
				data.push array.shift
			end
		end
		self.class.attr_accessor name
		case name
		when :psi
			set(name, GSL::Matrix.alloc(*data.pieces(@nzbox)).transpose)
		when :bound
			data = data.pieces(@nbound).transpose
			set(:rbound, data[0].to_gslv)
			set(:zbound, data[1].to_gslv)
		when :limiter
			data = data.pieces(@nlimiter).transpose
			set(:rlimiter, data[0].to_gslv)
			set(:zlimiter, data[1].to_gslv)
		else
			case sz
			when 1
         #p [name, 'yy', data]
				set(name, data[0])
			else
         #p [name,'xx', data.inspect[0..2000]]
         #p [name,data.to_gslv.inspect[0..10]]
				set(name, data.to_gslv)
			end
		end
	end
	@r = GSL::Vector.linspace(@rboxlft, @rboxlft+@rboxlen, @nrbox)
	@z = GSL::Vector.linspace(-@zboxlen/2.0, @zboxlen/2.0, @nzbox)

	if vb2
	  Terminal.erewind(1)
		eputs  "Read total data size of #{total_size.to_f * 8.0/1.0e6} MB"
	end

	if TokFile.verbosity > 0
	eputs <<EOF
--------------------------------------
              Tokfile
--------------------------------------
Successfully read an eqdsk file called
#{file}
with the following parameters:

nrbox = #@nrbox
nzbox = #@nzbox
nbound = #@nbound
raxis = #@raxis
--------------------------------------
EOF

	end







	#@lines = File.read(file).split("\n").map{|str| str.sub(/\A\s+/, '').sub(/\s+\Z/, '')}
	#@nrbox, @nzbox  = @lines[0].split(/\s+/).slice(-2..-1).map{|s| eval(s)}
	#in_data = true; i = 1
	#@atoms = []
	#@lines_columns = []
	#while in_data
		#@lines_columns[i] = @lines[i].split(/\s+|(?<=\d)[+-]/).map{|s| eval(s)}
		#@atoms += @lines_columns[i]
		#if @nbound = @atoms[start(:nbound)] 
			#if @atoms.size > start(:limiter) 
				#in_data = false
			#end
		#end
		#i+=1
	#end

	#[:t, :p, :pprime, :ttprime, :psi, :q, :rzbound].each do |var|
		#attr_accessor var
		#st = start(var)
		#set(var, @atoms.slice(st...(st+@nrbox))).to_gslv
	#end


	#@rboxlen, @zboxlen, @r0exp, @rboxlft, dummy = @lines_columns[1]
	#ep ['lines_columns', @lines_columns[1], @lines[1]]
	

   if not send(:nbound)
     $stderr.puts("Boundary missing: trying to reconstruct")
     reconstruct_boundary
   end
end

Instance Attribute Details

#bound ⇒ Object

Returns the value of attribute bound.



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# File 'lib/tokfile/eqdsk.rb', line 20

def bound
  @bound
end

#limiter ⇒ Object

Returns the value of attribute limiter.



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# File 'lib/tokfile/eqdsk.rb', line 20

def limiter
  @limiter
end

#nbound ⇒ Object

Returns the value of attribute nbound.



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# File 'lib/tokfile/eqdsk.rb', line 20

def nbound
  @nbound
end

#nlimiter ⇒ Object

Returns the value of attribute nlimiter.



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# File 'lib/tokfile/eqdsk.rb', line 20

def nlimiter
  @nlimiter
end

#nrbox ⇒ Object

Returns the value of attribute nrbox.



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# File 'lib/tokfile/eqdsk.rb', line 3

def nrbox
  @nrbox
end

#nzbox ⇒ Object

Returns the value of attribute nzbox.



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# File 'lib/tokfile/eqdsk.rb', line 3

def nzbox
  @nzbox
end

#rbound ⇒ Object

Returns the value of attribute rbound.



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# File 'lib/tokfile/eqdsk.rb', line 20

def rbound
  @rbound
end

#rlimiter ⇒ Object

Returns the value of attribute rlimiter.



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# File 'lib/tokfile/eqdsk.rb', line 20

def rlimiter
  @rlimiter
end

#zbound ⇒ Object

Returns the value of attribute zbound.



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# File 'lib/tokfile/eqdsk.rb', line 20

def zbound
  @zbound
end

#zlimiter ⇒ Object

Returns the value of attribute zlimiter.



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# File 'lib/tokfile/eqdsk.rb', line 20

def zlimiter
  @zlimiter
end

Instance Method Details

#convert(format) ⇒ Object 



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# File 'lib/tokfile/eqdsk.rb', line 38

def convert(format)
  case format
  when 'eqdsk'
    self.dup
  else
    raise "Conversion from eqdsk to #{format} not implemented yet"
  end
end

#read(line) ⇒ Object 



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# File 'lib/tokfile/eqdsk.rb', line 23

def read(line)
		#@lines_columns[i] = @lines[i].split(/\s+|(?<=\d)[+-]/).map{|s| eval(s)}
	line.sub(/\A\s+/, '').sub(/\s+\Z/, '').split(/\s+|(?<=\d)(?=[+-])/).map{|s| eval(s)}
	#line.scan(/.{15}/).map{|s| eval(s)}
	
	#ep ['line', line]
	#arr = []
	#res = line.scanf("%16.9E"){|n| arr.push n}
	#line.scanf("%E"){|n| arr.push n[0]}
	#ep ['res', res, arr]
	#ep ['res', arr]
	#arr

end

#reconstruct_boundary ⇒ Object 



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# File 'lib/tokfile/eqdsk.rb', line 231

def reconstruct_boundary
  require 'gsl_extras'
  $stderr.puts "Reconstructing boundary"
  contour = GSL::Contour.new(@r, @z, @psi)
 #psikit = GraphKit.quick_create([@r, @z, @psi])
#psikit.data[0].gp.with = 'pm3d'
#psikit.gp.view = "map"
  ck = contour.graphkit(0.0)
  #psikit+= GraphKit.quick_create([ck.data[0].x.data, ck.data[0].y.data, ck.data[0].y.data.collect{0.0}])
  #psikit.gnuplot
  @nbound = @nlimiter = ck.data[0].x.data.size
  @rbound = @rlimiter = ck.data[0].x.data
  @zbound = @zlimiter = ck.data[0].y.data
end

#size(var) ⇒ Object 



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# File 'lib/tokfile/eqdsk.rb', line 267

def size(var)
	case var
	#when :nbound, :nlimiter
	 #1
	when :bound
	 @nbound * 2
	when :limiter
		@nlimiter * 2
	when :psi
	 @nrbox * @nzbox
	when :t, :pr, :pprime, :ttprime, :q 
	 @nrbox
	else
		1
	end
end

#summary_graphkit ⇒ Object 



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# File 'lib/tokfile/eqdsk.rb', line 245

def summary_graphkit
	psivec = GSL::Vector.linspace(@psi.min, 0.0, @nrbox)
	multkit = GraphKit::MultiWindow.new([:pr, :pprime, :t, :ttprime, :q].map{|name|
		kit = GraphKit.quick_create([psivec, send(name)])
		kit.title = name.to_s
		kit.ylabel = nil
		kit.xlabel = 'psi'
		kit
	})
  psikit = GraphKit.quick_create([@r, @z, @psi])
	psikit.data[0].gp.with = 'pm3d'
	psikit.gp.view = "map"
	boundkit = GraphKit.quick_create([@rbound, @zbound, @rbound.collect{0.0}])
	psikit += boundkit
	psikit.gp.key = "off"
	psikit.title = 'psi'
	psikit.xlabel = 'R'
	psikit.ylabel = 'Z'
	multkit.push psikit
	multkit.gp.multiplot = "layout 2,3"
	multkit
end

#write_file(filename) ⇒ Object 



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# File 'lib/tokfile/eqdsk.rb', line 195

def write_file(filename)
  File.open(filename, 'w') do |file|
    printf(file, "%48s %3d %5d %5d\n", " EQDSK GEN.BY TOKFILE" , 1, @nrbox, @nzbox)
    array = []
    DATANAMES.each do |dname|
      next if [:zlimiter, :nlimiter].include? dname
      sz = size(dname)
      data = sz==1 ? [send(dname)] : send(dname).to_a
      case dname
      when :psi
        data = data.transpose.flatten
      when :bound
        data = [send(:rbound).to_a, send(:zbound).to_a].transpose.flatten
      when :limiter
        data = [send(:rlimiter).to_a, send(:zlimiter).to_a].transpose.flatten
      end
      unless dname==:nbound
        array += data
      end
      #p [dname]
      while array.size > 5 
        out = []
        5.times{out.push(array.shift)}
        printf(file, FMT, *out)
      end
      if [:nbound, :limiter].include? dname
        # Clear buffer
        printf(file, "%16.9e"*array.size + "\n", *array)
        array = []
      end
      if dname == :nbound
        printf(file, "%5d%5d\n", data[0], send(:nlimiter))
      end
    end
  end
end