2022-04-16 06:59:52 +00:00
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accessing
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exportTweetsHistogramWithBars: aNumberOfBars
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2022-04-16 17:08:30 +00:00
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| tweetsByTimeSpan subtotals tweetsColor x tweetsHistogram diagram |
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tweetsByTimeSpan := self collectMessages: [ self tweets] byTimeSpanSplits: aNumberOfBars.
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subtotals := tweetsByTimeSpan values collect: [ :collection | collection size ].
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2022-04-16 06:59:52 +00:00
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tweetsColor := (Color r:(91/255) g:(131/255) b:(222/255)).
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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: tweetsColor.
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tweetsHistogram addPlot: diagram.
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tweetsHistogram addDecoration: (RSHorizontalTick new
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2022-04-16 17:08:30 +00:00
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fromNames: tweetsByTimeSpan keys;
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2022-04-16 06:59:52 +00:00
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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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2022-04-18 22:29:09 +00:00
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tweetsHistogram canvas pngExporter
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2022-04-16 06:59:52 +00:00
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zoomToShapes;
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noFixedShapes;
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2022-04-18 22:29:09 +00:00
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fileName: (self folder / 'tweets-histogram.png')fullName;
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2022-04-16 06:59:52 +00:00
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export.
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2022-04-18 22:29:09 +00:00
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^ self folder / 'tweets-histogram.png'
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