Class: CrystalScad::Extras::Triangle

Inherits:
Object
  • Object
show all
Defined in:
lib/crystalscad/Extras.rb

Overview

This currently can solve triangels knowing 1 side and 2 angels

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = {}) ⇒ Triangle

Returns a new instance of Triangle.



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# File 'lib/crystalscad/Extras.rb', line 7

def initialize(args={})
	@alpha = args[:alpha]
	@beta = args[:beta]
	@gamma = args[:gamma]
	@a = args[:a]
	@b = args[:b]
	@c = args[:c]	
	solve
end

Instance Attribute Details

#a ⇒ Object

Returns the value of attribute a.



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# File 'lib/crystalscad/Extras.rb', line 6

def a
  @a
end

#alpha ⇒ Object

Returns the value of attribute alpha.



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# File 'lib/crystalscad/Extras.rb', line 6

def alpha
  @alpha
end

#b ⇒ Object

Returns the value of attribute b.



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# File 'lib/crystalscad/Extras.rb', line 6

def b
  @b
end

#beta ⇒ Object

Returns the value of attribute beta.



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# File 'lib/crystalscad/Extras.rb', line 6

def beta
  @beta
end

#c ⇒ Object

Returns the value of attribute c.



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# File 'lib/crystalscad/Extras.rb', line 6

def c
  @c
end

#gamma ⇒ Object

Returns the value of attribute gamma.



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# File 'lib/crystalscad/Extras.rb', line 6

def gamma
  @gamma
end

Instance Method Details

#solve ⇒ Object 



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# File 'lib/crystalscad/Extras.rb', line 17

def solve
	# see if we have two angles, so we know the third one
	if @alpha == nil and @beta != nil and @gamma != nil
		@alpha = 180 - @beta - @gamma
	elsif @alpha != nil and @beta == nil and @gamma != nil
		@beta = 180 - @alpha - @gamma 
	elsif @alpha != nil and @beta != nil and @gamma == nil			
		@gamma = 180 - @alpha - @beta
	end			

	if @alpha != nil and @beta != nil and @gamma != nil
		
		if @a == nil
			if @b != nil
				@a = (@b / Math::sin(radians(@beta))) * Math::sin(radians(@alpha))	
			elsif @c != nil
				@a = (@c / Math::sin(radians(@gamma))) * Math::sin(radians(@alpha))	
			end
		end

		if @b == nil
			if @a != nil
				@b = (@a / Math::sin(radians(@alpha))) * Math::sin(radians(@beta))	
			elsif @c != nil
				@b = (@c / Math::sin(radians(@gamma))) * Math::sin(radians(@beta))	
			end
		end

		if @c == nil
			if @a != nil
				@c = (@a / Math::sin(radians(@alpha))) * Math::sin(radians(@gamma))	
			elsif @b != nil
				@c = (@b / Math::sin(radians(@beta))) * Math::sin(radians(@gamma))	
			end
		end					
	
	end			


end