Types/Turtle/SierpinskiArrowheadCurve.ps1
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<# .SYNOPSIS Generates a Sierpinski Arrowhead Curve. .DESCRIPTION Generates a Sierpinski Arrowhead Curve using turtle graphics. .LINK https://en.wikipedia.org/wiki/Sierpi%C5%84ski_curve#Representation_as_Lindenmayer_system_2 .EXAMPLE $turtle.SierpinskiArrowheadCurve().Pattern.Save("$pwd/SierpinskiArrowhead.svg") .EXAMPLE $turtle.Clear() $turtle.SierpinskiArrowheadCurve(10,4) $turtle.PatternTransform = @{ 'scale' = 0.9 } $turtle.PatternAnimation = " <animateTransform attributeName='patternTransform' attributeType='XML' type='scale' values='1;0.9;1' dur='19s' repeatCount='indefinite' additive='sum' /> <animateTransform attributeName='patternTransform' attributeType='XML' type='skewY' values='0;-30;30;-30;0' dur='67s' repeatCount='indefinite' additive='sum' /> <animateTransform attributeName='patternTransform' attributeType='XML' type='skewX' values='0;-30;30;-30;0' dur='83s' repeatCount='indefinite' additive='sum' /> " $turtle.Pattern.Save("$pwd/SierpinskiArrowhead2.svg") #> param( [double]$Size = 30, [int]$Order = 8, [double]$Angle = 60 ) return $this.LSystem('XF', [Ordered]@{ X = 'YF + XF + Y' Y = 'XF - YF - X' }, $Order, [Ordered]@{ '\+' = { $this.Rotate($Angle) } '-' = { $this.Rotate($Angle * -1) } 'F' = { $this.Forward($Size) } }) |