Class: Quartz::Point

Inherits:
Object
  • Object
show all
Defined in:
lib/rubyquartz/point.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(x, y) ⇒ Point

Returns a new instance of Point.



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# File 'lib/rubyquartz/point.rb', line 30

def initialize(x,y)
  @x = x
  @y = y
end

Instance Attribute Details

#x ⇒ Object

Returns the value of attribute x.



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# File 'lib/rubyquartz/point.rb', line 28

def x
  @x
end

#y ⇒ Object

Returns the value of attribute y.



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# File 'lib/rubyquartz/point.rb', line 28

def y
  @y
end

Instance Method Details

#*(scalar) ⇒ Object 



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# File 'lib/rubyquartz/point.rb', line 43

def *(scalar)
  Point.new(@x*scalar, @y*scalar)
end

#+(p) ⇒ Object 



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# File 'lib/rubyquartz/point.rb', line 35

def +(p)
  Point.new(@x+p.x, @y+p.y)
end

#-(p) ⇒ Object 



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# File 'lib/rubyquartz/point.rb', line 39

def -(p)
  Point.new(@x-p.x, @y-p.y)
end

#abs ⇒ Object 



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# File 'lib/rubyquartz/point.rb', line 55

def abs
  Point.new(@x.abs, @y.abs)
end

#dot(p) ⇒ Object 



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# File 'lib/rubyquartz/point.rb', line 47

def dot(p)
  (@x*p.x) + (@y*p.y)
end

#perp ⇒ Object 



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# File 'lib/rubyquartz/point.rb', line 51

def perp
  Point.new(-@y, @x)
end

#to_s ⇒ Object 



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# File 'lib/rubyquartz/point.rb', line 59

def to_s
  "(#{@x}, #{@y})"
end