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(outside traverse arbitrary quadrangle)
(computes direction for polygon cw or ccw and swaps if required)
(info: oquad: outside quadrilateral, specify four x,y points)
o<oquad> sub
#<toolno> = #1 (=1)
#<rpm> = #2 (=1)
#<dir> = #3 (=2 2conv|3climb)
#<feedrate> = #4 (=10)
#<cutdepth> = #5
#<zincr> = #6
#<zsafe> = #7 (=0.2)
#<zstart> = #8 (=0)
#<x1> = #9
#<y1> = #10
#<x2> = #11
#<y2> = #12
#<x3> = #13
#<y3> = #14
#<x4> = #15
#<y4> = #16
#<scale> = #17 (=1)
#<rotate> = #18 (=0)
#<xoff> = #19 (=0)
#<yoff> = #20 (=0)
#<spin_notify> = #21 (=0)
#<use_g43> = #22 (=1)
#<h_for_g43> = #23 (=0)
#<verbose> = #24 (=0)
o<i0> if [#<scale> EQ 0]
#<scale> = 1.0
(debug, scale was 0, setting #<scale>)
o<i0> endif
o<loadtool> call [#<toolno>][#<use_g43>][#<h_for_g43>][#<verbose>]
#<tooldiam> = [#5410 + .001]
o<l00> if [[#<dir> NE 2] AND [#<dir> NE 3]]
(debug, oquad: bogus direction #<dir> - EXITING)
(print, oquad: bogus direction #<dir> - EXITING)
(AXIS,notify, oquad: bogus direction - EXITING)
m2
o<l00> endif
(determine direction eg cw or ccw of points)
o<dir> call [4][#<x1>][#<y1>][#<x2>][#<y2>][#<x3>][#<y3>][#<x4>][#<y4>]
#<pointsdir> = #<_dir:>
o<l20> if [#<pointsdir> NE #<dir>]
(swap 1234 --> 1432)
#<xt> = #<x2>
#<yt> = #<y2>
#<x2> = #<x4>
#<y2> = #<y4>
#<x4> = #<xt>
#<y4> = #<yt>
o<l20> endif
(apply scale, rotate, then offset to all input points)
o<move> call [#<x1>][#<y1>][#<rotate>][#<scale>][#<xoff>][#<yoff>]
#<x1> = #<_move:x>
#<y1> = #<_move:y>
o<move> call [#<x2>][#<y2>][#<rotate>][#<scale>][#<xoff>][#<yoff>]
#<x2> = #<_move:x>
#<y2> = #<_move:y>
o<move> call [#<x3>][#<y3>][#<rotate>][#<scale>][#<xoff>][#<yoff>]
#<x3> = #<_move:x>
#<y3> = #<_move:y>
o<move> call [#<x4>][#<y4>][#<rotate>][#<scale>][#<xoff>][#<yoff>]
#<x4> = #<_move:x>
#<y4> = #<_move:y>
#<r> = [#<tooldiam>/2]
#<cutdepth> = [0 - #<cutdepth>]
#<zincr> = [0 - #<zincr>]
(get lengths and angles for connecting lines)
o<line> call [#<x1>][#<y1>][#<x2>][#<y2>]
#<phi12> = #<_line:phi>
g40 (cutter radius compensation off)
f #<feedrate>
s #<rpm> m3 (spindle cw)
o<if1> if [#<spin_notify> GT 0]
o<spin> call [#<rpm>]
o<if1> endif
g0 z#<zsafe>
#<zcurrent> = #<zstart>
#<pass> = 1
o<wh010> while [#<zcurrent> GT #<cutdepth>]
#<zcurrent> = [#<zcurrent> + #<zincr>]
o<wh020> if [#<zcurrent> LT #<cutdepth>]
#<zcurrent> = #<cutdepth>
o<wh020> endif
o<wh030> if [#<pass> GT 100]
(debug, oquad: too many passes - EXITING)
(print, oquad: too many passes - EXITING)
(AXIS,notify, oquad: too many passes - EXITING)
m2
o<wh030> endif
o<pas00> if [#<pass> EQ 1]
o<dir00> if [#<dir> EQ 2]
#<bx> = [#<x1> - #<r> * sin[#<phi12>] - #<r> * cos[#<phi12>]]
#<by> = [#<y1> + #<r> * cos[#<phi12>] - #<r> * sin[#<phi12>]]
#<vx> = [ #<r> * cos[#<phi12>]] (b to arc center)
#<vy> = [ #<r> * sin[#<phi12>]]
g0 x #<bx> y #<by>
/ g41 (cutter radius comp left of path)
g3 x #<x1> y #<y1> i #<vx> j #<vy> (arc entry)
o<dir00> else (dir EQ 3 CCW)
#<bx> = [#<x1> + #<r> * sin[#<phi12>] - #<r> * cos[#<phi12>]]
#<by> = [#<y1> - #<r> * cos[#<phi12>] - #<r> * sin[#<phi12>]]
#<vx> = [ #<r> * cos[#<phi12>]] (b to arc center)
#<vy> = [ #<r> * sin[#<phi12>]]
g0 x #<bx> y #<by>
/ g42 (cutter radius comp right of path)
g2 x #<x1> y #<y1> i #<vx> j #<vy> (arc entry)
o<dir00> endif
#<xfinal> = #<x2>
#<yfinal> = #<y2>
g1 z #<zstart> (plunge to start height todo:g0)
o<pas00> endif
x #<x2> y #<y2> z#<zcurrent> (ramp down to zcurrent)
x #<x3> y #<y3>
x #<x4> y #<y4>
x #<x1> y #<y1>
#<pass> = [#<pass> + 1]
o<wh010> endwhile
g1 x #<xfinal> y #<yfinal>
g0 z #<zsafe>
g40
o<oquad> endsub
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