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Extension { #name : #Rectangle }
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{ #category : #'*DrGeoII-Core-intersection' }
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Rectangle >> intersectionWith: aLineSeg [
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intersections := Set new.
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intersectionWith: (LineSegment from: self origin to: self bottomLeft))
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ifNotNil: [:inter | intersections add: inter].
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intersectionWith: (LineSegment from: self origin to: self topRight))
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ifNotNil: [:inter | intersections add: inter].
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intersectionWith: (LineSegment from: self corner to: self bottomLeft))
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ifNotNil: [:inter | intersections add: inter].
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intersectionWith: (LineSegment from: self corner to: self topRight))
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ifNotNil: [:inter | intersections add: inter].
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intersections := intersections asOrderedCollection.
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intersections size = 2
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ifTrue: [^ LineSegment from: intersections first to: intersections second].
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intersections size = 0
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[(self containsPoint: aLineSeg start)
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ifTrue: [(self containsPoint: aLineSeg end) ifTrue: [^aLineSeg ]]
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ifFalse: [(self containsPoint: aLineSeg end) ifFalse: [^nil]]].
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(self containsPoint: aLineSeg start)
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(self containsPoint: aLineSeg start)
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ifFalse: [^LineSegment from: aLineSeg start to: intersections first]].
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(self containsPoint: aLineSeg end)
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ifTrue: [^LineSegment from: aLineSeg end to: intersections first].
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removed
src/DrGeoII-Core/Rectangle.extension.st
