Class: StlExtract

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

Instance Method Summary collapse

Constructor Details

#initialize(file = nil) ⇒ StlExtract

Returns a new instance of StlExtract.



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# File 'lib/STLExtract.rb', line 94

def initialize(file=nil)
	#Set our initial values to nil and false for error 
	@x_value = nil
	@y_value = nil
	@z_value = nil
	@volume = nil
	@repair = nil
	@error = false
	
	#Find Slic3r location
	@slic3r_path = File.expand_path('../../', __FILE__)
	if OS.windows?
		@slic3r_path = @slic3r_path + '/Slic3r/Win/slic3r-console.exe'
	elsif OS.mac?
		@slic3r_path = @slic3r_path + '/Slic3r/Mac/Slic3r.app/Contents/MacOS/slic3r'
	elsif OS.linux?
		@slic3r_path = @slic3r_path + '/Slic3r/Linux/bin/slic3r'
	else
		#RuntimeError
		raise "Could not detect platform from: "+RUBY_PLATFORM
	end		
	
	#Unix systems (Mac and Linux) require that file be executable
	if OS.unix?
		if File.chmod(0744,@slic3r_path) == 0
			#RuntimeError
			raise "Could not make Slic3r executable"
		end
	end	
	
	if file!=nil
		get_info(file)
	end
end

Instance Method Details

#error ⇒ Object 



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# File 'lib/STLExtract.rb', line 154

def error()
	#Return stored volume
	@error
end

#get_info(file) ⇒ Object 



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# File 'lib/STLExtract.rb', line 32

def get_info(file)
	#Set @file to use later in repair
	@file = file

	#Set our initial values to nil and false for error
	@x_value = nil
	@y_value = nil
	@z_value = nil
	@volume = nil
	@repair = nil
	@error = false
	
	#Open slic3r with filename supplied
	io = IO.popen(@slic3r_path+" --info \""+file+"\" 2>&1")
	
	io.each do |s|
		#If output contains size, extract size information using regex
		if s.include? "size"
			sizeMatch = s.match( /x=(\d+\.\d+)[^y]+y=(\d+\.\d+)[^z]+z=(\d+\.\d+)/ )
			if sizeMatch!=nil 
				@x_value = sizeMatch.values_at( 1 )[0]
				@y_value = sizeMatch.values_at( 2 )[0]
				@z_value = sizeMatch.values_at( 3 )[0]
			end
		end
		#If output contains repair stats
		if s.include? "needed repair"
			sizeMatch = s.match( /needed repair:[^y]+(yes|no)/ )
			if sizeMatch!=nil 
				if sizeMatch.values_at( 1 )[0]=="yes"
					@repair = true
				else
					@repair = false
				end
			end
		end
		#If output contains volume, extract volume information using regex
		if s.include? "volume"
			volMatch = s.match( /volume\:[^\d]+(\d+\.\d+)/ )
			if volMatch!=nil 
				@volume = volMatch.values_at( 1 )[0]
			end			  
		end
		
		#Check Slic3r output for errors
		if s.include? "Input file must have .stl, .obj or .amf(.xml) extension"
			@error = "Filetype not STL, OBJ or AMF "+file
		end
		if s.include? "Failed to open"
			@error = "Could not find: "+file
		end 
		if s.include? "The file"
			@error = "Corrupted file: "+file
		end
	end
	
	#Check that all required data is extracted
	if ((@x_value==nil || @y_value==nil || @z_value==nil || @volume==nil || @repair==nil ) && @error == false)
		@error = "Could not extract all data"
	end	
end

#repair ⇒ Object 



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# File 'lib/STLExtract.rb', line 149

def repair()
	#Return stored volume
	@repair
end

#repair_file(file = nil) ⇒ Object 



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# File 'lib/STLExtract.rb', line 5

def repair_file(file=nil)
	@error = false
	
	if file==nil
		#Check for file to repair in local @file
		if @file!=nil
			#Use file found in @file to repair
			file = @file
		else
			#No file provided, give error
			@error = "No file provided to repair"
		end
	else
		#Use file provided to function in repair
	end
	
	#If no errors, repair file
	if @error == false
		io = IO.popen(@slic3r_path+" --repair \""+file+"\" 2>&1")
		io.each do |s|
			if s.include? "No such file"
				@error = "Incorrect filename"
			end
		end
	end
end

#volume ⇒ Object 



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# File 'lib/STLExtract.rb', line 144

def volume()
	#Return stored volume
	@volume
end

#x ⇒ Object 



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# File 'lib/STLExtract.rb', line 129

def x()
	#Return stored x value
	@x_value
end

#y ⇒ Object 



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# File 'lib/STLExtract.rb', line 134

def y()
	#Return stored y value
	@y_value
end

#z ⇒ Object 



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# File 'lib/STLExtract.rb', line 139

def z()
	#Return stored z value
	@z_value
end