Types/Turtle/KochIsland.ps1
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<# .SYNOPSIS Generates a Koch Island .DESCRIPTION Generates a Koch Island using turtle graphics. .EXAMPLE $turtle.KochIsland().Pattern.Save("$pwd/KochIsland.svg") .EXAMPLE $turtle.Clear() $turtle.KochIsland(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' /> <animateTransform attributeName='patternTransform' attributeType='XML' type='rotate' values='0;360' dur='163s' repeatCount='indefinite' additive='sum' /> <animateTransform attributeName='patternTransform' attributeType='XML' type='translate' values='0 0;200 200;0 0' dur='283s' repeatCount='indefinite' additive='sum' /> " $turtle.Pattern.Save("$pwd/KochIsland2.svg") #> param( [double]$Size = 20, [int]$Order = 3, [double]$Angle = 90 ) return $this.LSystem('W', [Ordered]@{ W = 'F+F+F+F' F = 'F+F-F-FF+F+F-F' }, $Order, [Ordered]@{ '\+' = { $this.Rotate($Angle) } '-' = { $this.Rotate($Angle * -1) } '[FG]' = { $this.Forward($Size) } }) |