式17: polygon left parenthesis, "D" left parenthesis, "p" plus "t" "S" , right parenthesis , "D" left parenthesis, "p" minus "t" "S" , right parenthesis , right parenthesis left bracket, "I" , right bracketpolygonDp+tS,Dp−tSI
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式18: "L" Subscript, "i" "n" "e" "W" "i" "d" "t" "h" , Baseline equals "a" 100 "S" Subscript, "i" "g" "m" "o" "i" "d" , Baseline left parenthesis, max left parenthesis, "S" . "x" , "S" . "y" , "S" . "z" , right parenthesis , right parenthesis plus "b"LineWidth=a100SigmoidmaxS.x,S.y,S.z+b
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式19: "a" equals 1.0 5a=1.05
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式20: "b" equals 3.2 3b=3.23
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式21: "t" equals 0t=0
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式22: max left parenthesis, "S" . "x" , "S" . "y" , "S" . "z" , right parenthesismaxS.x,S.y,S.z
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colour
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size
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Position
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式29: "p" equals "P"p=P
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Opacity
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式32: "O" Subscript, "p" "a" "c" "i" "t" "y" , Baseline equals "S" Subscript, "i" "g" "m" "o" "i" "d" , Baseline left parenthesis, "O" left bracket, "I" , right bracket , right parenthesisOpacity=SigmoidOI
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式33: "S" Subscript, "i" "g" "m" "o" "i" "d" , Baseline left parenthesis, "x" , right parenthesis equals StartFraction, 1 Over 1 plus "e" Superscript, negative "x" , Baseline , EndFractionSigmoidx=11+e−x
