lib/mageo/axes.rb in mageo-0.0.0 vs lib/mageo/axes.rb in mageo-0.0.1

@@ -3,85 +3,84 @@
 
 require "matrix"
 
 # n 次元空間における座標系を表現する n 本のベクトルを扱うクラス。
 class Axes
-	attr_reader :axes
+  attr_reader :axes
 
-	class InitializeError < Exception; end
+  class InitializeError < Exception; end
 
 
-	# 要素数が nxn でなければ例外。0x0 も例外。
-	# 角各要素は to_f メソッドを持たなければならない。
-	def initialize(vectors)
-		raise InitializeError if vectors.size == 0
-		@axes = vectors.map{|vector| Vector[*vector]}
+  # 要素数が nxn でなければ例外。0x0 も例外。
+  # 角各要素は to_f メソッドを持たなければならない。
+  def initialize(vectors)
+    raise InitializeError if vectors.size == 0
+    @axes = vectors.map{|vector| Vector[*vector]}
 
-		#raise InitializeError unless @axes.regular? # この判定はうまくいかない。バグ？
-		@axes.each do |vector|
-			raise InitializeError unless @axes.size == vector.size
-		end
-	end
+    #raise InitializeError unless @axes.regular? # この判定はうまくいかない。バグ？
+    @axes.each do |vector|
+      raise InitializeError unless @axes.size == vector.size
+    end
+  end
 
-	def self.independent?(axes)
-		return Matrix[* axes.map{|i| i.to_a}].regular?
-	end
+  def self.independent?(axes)
+    return Matrix[* axes.map{|i| i.to_a}].regular?
+  end
 
-	# Return true is the vector is not independent.
-	def self.dependent?(axes)
-		return ! (self.independent?(axes))
-	end
+  # Return true is the vector is not independent.
+  def self.dependent?(axes)
+    return ! (self.independent?(axes))
+  end
 
-	# Return a number of vectors in axes, always three.
-	# Mimic for Array.
-	def size
-		return @axes.size
-	end
+  # Return a number of vectors in axes, always three.
+  # Mimic for Array.
+  def size
+    return @axes.size
+  end
 
-	# Check equal.
-	# Usually, this method should not be used, except for tests.
-	def ==(other)
-		result = true
-		size.times do |i|
-			size.times do |j|
-				result = false if @axes[i][j] != other.axes[i][j]
-			end
-		end
+  # Check equal.
+  # Usually, this method should not be used, except for tests.
+  def ==(other)
+    result = true
+    size.times do |i|
+      size.times do |j|
+        result = false if @axes[i][j] != other.axes[i][j]
+      end
+    end
 
-		return result
-	end
+    return result
+  end
 
-	def dependent?
-		self.class.dependent?(@axes)
-	end
+  def dependent?
+    self.class.dependent?(@axes)
+  end
 
-	def independent?
-		self.class.independent?(@axes)
-	end
+  def independent?
+    self.class.independent?(@axes)
+  end
 
-	def to_a
-		result = [
-			@axes[0].to_a,
-			@axes[1].to_a,
-			@axes[2].to_a,
-		]
-		return result
-	end
+  def to_a
+    result = [
+      @axes[0].to_a,
+      @axes[1].to_a,
+      @axes[2].to_a,
+    ]
+    return result
+  end
 
-	# Item access for three axes in cartesian coordinates.
-	# Note: []= method is not provided.
-	def [](index)
-		@axes[ index ]
-	end
+  # Item access for three axes in cartesian coordinates.
+  # Note: []= method is not provided.
+  def [](index)
+    @axes[ index ]
+  end
 
-	# Iterate each vector of axes.
-	def each
-		@axes.each { |i| yield(i) }
-	end
+  # Iterate each vector of axes.
+  def each
+    @axes.each { |i| yield(i) }
+  end
 
-	# Convert to Array. Non-destructive.
-	def to_a
-		return @axes.map { |vector| vector.to_a }
-	end
-
+  # Convert to Array. Non-destructive.
+  def to_a
+    return @axes.map { |vector| vector.to_a }
+  end
 end