29 lines
1.0 KiB
Smalltalk
29 lines
1.0 KiB
Smalltalk
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accessing
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exportRepliesHistogramWithBars: aNumberOfBars
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| tweetsByTimeSpan subtotals repliesColor x tweetsHistogram diagram |
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tweetsByTimeSpan := self collectMessages: [ self replies ] byTimeSpanSplits: aNumberOfBars.
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subtotals := tweetsByTimeSpan values collect: [ :collection | collection size ].
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repliesColor := (Color r:(246/255) g:(185/255) b:(46/255)).
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x := 1 to: subtotals size.
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tweetsHistogram := RSChart new.
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tweetsHistogram extent: 800@200.
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diagram := RSBarPlot new x: x y:subtotals.
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diagram color: repliesColor.
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tweetsHistogram addPlot: diagram.
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tweetsHistogram addDecoration: (RSHorizontalTick new
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fromNames: tweetsByTimeSpan keys;
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labelRotation: 0;
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fontSize: 80 /aNumberOfBars;
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yourself).
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tweetsHistogram addDecoration: (RSVerticalTick new
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integer;
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fontSize: 80 /aNumberOfBars).
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tweetsHistogram build.
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tweetsHistogram canvas pngExporter
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zoomToShapes;
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noFixedShapes;
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fileName: (self folder / 'replies-histogram.png')fullName;
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export.
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^ self folder / 'replies-histogram.png'
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