Class: WavefrontObj

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

Constant Summary collapse

DEFAULT_NAME = 
"Wavefront Obj"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ WavefrontObj

Returns a new instance of WavefrontObj.



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# File 'lib/wavefront_obj.rb', line 11

def initialize
	@name = DEFAULT_NAME
	@points = Hash.new
	@point_index = 0
	@faces = Hash.new
end

Instance Attribute Details

#faces ⇒ Object

Returns the value of attribute faces.



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# File 'lib/wavefront_obj.rb', line 7

def faces
  @faces
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/wavefront_obj.rb', line 7

def name
  @name
end

#point_index ⇒ Object (readonly)

Returns the value of attribute point_index.



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# File 'lib/wavefront_obj.rb', line 6

def point_index
  @point_index
end

#points ⇒ Object

Returns the value of attribute points.



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# File 'lib/wavefront_obj.rb', line 7

def points
  @points
end

Instance Method Details

#add_face(pnt_arr) ⇒ Object 



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# File 'lib/wavefront_obj.rb', line 33

def add_face(pnt_arr)
	face_points = []
	pnt_arr.each do |pnt|
		face_points.push add_point(pnt)
	end
	indentifier = create_face_identifier(face_points)
	if @faces[indentifier].nil?
		@faces[indentifier] = Hash.new
		@faces[indentifier]["face"] = face_points
	end
end

#add_point(pnt) ⇒ Object 



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# File 'lib/wavefront_obj.rb', line 18

def add_point(pnt)
	if pnt.class == Array && pnt.length == 3
		indentifier = create_point_identifier(pnt)
		if @points[indentifier].nil?
			@points[indentifier] = Hash.new 
			@point_index = @point_index+1
			@points[indentifier]["index"] = @point_index
		end
		@points[indentifier]["point"] = pnt
		return @points[indentifier]["index"]
   else
     false
	end
end

#get_raw_data ⇒ Object 



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# File 'lib/wavefront_obj.rb', line 52

def get_raw_data
buffer = []
buffer.push(get_name_syntax(@name))

@points.each do |key, pnt|
	buffer.push(get_point_syntax(pnt["point"]))
end

@faces.each do |key, face|
	buffer.push(get_face_syntax(face["face"]))
end

return buffer.join("\n")
end

#save(path) ⇒ Object 



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# File 'lib/wavefront_obj.rb', line 45

def save(path)
raw_data = get_raw_data
path = "#{path}.obj" unless path.split(".").last == "obj"
File.open(path, 'w') {|f| f.write(get_raw_data) }
path
end