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#name : #DrGArcSymmetryItem,
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#superclass : #DrGArcItem,
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#category : #'DrGeoII-Core-Item'
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{ #category : #updating }
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DrGArcSymmetryItem >> moveParent: aPoint [
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{ #category : #'xml writing' }
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DrGArcSymmetryItem >> nodeType [
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{ #category : #updating }
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DrGArcSymmetryItem >> update [
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[origin := parents first origin + Float pi.
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origin > Float pi ifTrue: [origin := origin - DrGDirectionItem twoPi].
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radius := parents first radius.
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center := 2 * parents second point - parents first center.
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length := parents first length].