1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/graster/graster/lib/graster/gcode_file.rb	Tue Aug 24 19:06:45 2010 -0400
     1.3 @@ -0,0 +1,71 @@
     1.4 +class Graster
     1.5 +  class GcodeFile < File
     1.6 +    def preamble opts
     1.7 +      @laser = false
     1.8 +      self << "M63 P0\nG61\nF#{opts[:feed] || 60}\n"
     1.9 +      self << "M101\n" if opts[:mask]
    1.10 +      self << "M3 S1\n"
    1.11 +    end
    1.12 +
    1.13 +    def epilogue
    1.14 +      self << "M63 P0\nM5\nM2\n"
    1.15 +    end
    1.16 +
    1.17 +    PRIORITY = [:g,:x,:y,:z,:w,:i,:j,:k,:m,:p,:s]
    1.18 +
    1.19 +    def nc codes
    1.20 +      codes = codes.dup
    1.21 +
    1.22 +      if codes[:laser] == true && !@laser
    1.23 +        @laser = true
    1.24 +        codes.merge!(:m => 62, :p => 0)
    1.25 +      elsif codes[:laser] == false && @laser
    1.26 +        @laser = false
    1.27 +        codes.merge!(:m => 63, :p => 0)
    1.28 +      end
    1.29 +
    1.30 +      codes.delete :laser
    1.31 +
    1.32 +      self << codes.sort {|(k1,v1),(k2,v2)|
    1.33 +        PRIORITY.index(k1) <=> PRIORITY.index(k2)
    1.34 +      }.map {|k,v|
    1.35 +        if v.is_a? Integer
    1.36 +          "#{k.to_s.upcase}#{v}"
    1.37 +        elsif v.is_a? Float
    1.38 +          "#{k.to_s.upcase}%0.3f" % v
    1.39 +        else
    1.40 +          k.to_s.upcase
    1.41 +        end
    1.42 +      }.join(' ') + "\n"
    1.43 +    end
    1.44 +
    1.45 +    def g0 codes
    1.46 +      nc({:g => 0}.merge codes)
    1.47 +    end
    1.48 +    alias_method :jog, :g0
    1.49 +
    1.50 +    def g1 codes
    1.51 +      nc({:g => 1}.merge codes)
    1.52 +    end
    1.53 +    alias_method :move, :g1
    1.54 +
    1.55 +    def g2 codes
    1.56 +      nc codes.merge(:g => 2)
    1.57 +    end
    1.58 +    alias_method :turn_cw, :g2
    1.59 +
    1.60 +    def g3 codes
    1.61 +      nc codes.merge(:g => 3)
    1.62 +    end
    1.63 +    alias_method :turn_ccw, :g3
    1.64 +
    1.65 +    def comment txt
    1.66 +      txt = txt.gsub(/\(\)/,'')
    1.67 +      self << "(#{txt})\n"
    1.68 +    end
    1.69 +
    1.70 +    def puts *a
    1.71 +      self.puts *a
    1.72 +    end
    1.73 +  end
    1.74 +end