Class: Malge::MultiVariableFunction

Inherits:
Object
  • Object
show all
Defined in:
lib/malge/multivariablefunction.rb

Constant Summary collapse

TOLERANCE = 
1E-10

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data) ⇒ MultiVariableFunction

data example:

[
  {x => 0.0, y => 0.1, z => 0.0},
  {x => 1.0, y => 1.1, z => 1.0},
  {x => 2.0, y => 2.1, z => 3.0},
]



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# File 'lib/malge/multivariablefunction.rb', line 19

def initialize(data)
  @data = data
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/malge/multivariablefunction.rb', line 8

def data
  @data
end

Instance Method Details

#abstract(conditions) ⇒ Object 



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# File 'lib/malge/multivariablefunction.rb', line 31

def abstract(conditions)
  result = Marshal.load(Marshal.dump(self))
  result.abstract!(conditions)
  result
end

#abstract!(conditions) ⇒ Object

Return array of data which matches the hash.



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# File 'lib/malge/multivariablefunction.rb', line 24

def abstract!(conditions)
  results = @data.select do |coords|
    match_condition?(coords, conditions)
  end
  @data = results
end

#data_pairs(key0, key1) ⇒ Object

return 2-dimensional array. [

[x0, y0],
[x1, y1],
:

]



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# File 'lib/malge/multivariablefunction.rb', line 79

def data_pairs(key0, key1)
  results = []
  @data.each do |datum|
    results << [datum[key0], datum[key1]]
  end
  results
end

#delete_axis(axis) ⇒ Object 



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# File 'lib/malge/multivariablefunction.rb', line 67

def delete_axis(axis)
  result = Marshal.load(Marshal.dump(self))
  result.delete_axis!(axis)
  result
end

#delete_axis!(axis) ⇒ Object 



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# File 'lib/malge/multivariablefunction.rb', line 61

def delete_axis!(axis)
  @data.each do |datum|
    datum.delete axis
  end
end

#unite_axes(keys, new_key = nil) ⇒ Object 



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# File 'lib/malge/multivariablefunction.rb', line 55

def unite_axes(keys, new_key = nil)
  result = Marshal.load(Marshal.dump(self))
  result.unite_axes!(keys, new_key)
  result
end

#unite_axes!(keys, new_key = nil) ⇒ Object

unite axes with the same value. keys : [:a, :b] new_key : default is keys



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# File 'lib/malge/multivariablefunction.rb', line 40

def unite_axes!(keys, new_key = nil)
  new_key ||= keys[0]
  results = []
  @data.each do |datum|
    new_datum = Marshal.load(Marshal.dump(datum))
    if same?(new_datum, keys)
      val = new_datum[keys[0]]
      keys.each {|key| new_datum.delete(key) }
      new_datum[new_key] = val
      results << new_datum
    end
  end
  @data = results
end