Hi!

RTGraphBuilder went through major improvements.

- min and max may be specified. 

- plugins to add some decoration (average line, standard deviation range, ticks lines, …)

Here are some examples, with some examples, which should illustrate these points:

Is obtained with: 

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| b ds |
b := RTGrapherBuilder new.

ds := RTDataSet new.
ds points: (0 to: 100 by: 0.1).
ds y: [ :x | (0.1 * x) sin  ].
ds noDot.
ds interaction popupText: 'sinus'.
ds connectColor: Color blue.
b add: ds.

ds := RTDataSet new.
ds points: (0 to: 100 by: 0.1).
ds y: [ :x | (0.2 * x) cos * 2 ].
ds noDot.
ds interaction popupText: 'cosinus'.
ds connectColor: Color red.
b add: ds.

b minY: -4.
b maxY: 4.
b minX: -25.

b build.

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b := RTGrapherBuilder new.

ds := RTStackedDataSet new.
ds interaction popup.
ds points: #(600 470 170 430 300).
ds barShape width: 20; color: Color lightGreen.
b add: ds.

b axisX noLabel; noTick.
b axisY noDecimals.

b addPlugin: RTMeanDevVarPlugin new.
b build
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Another example:

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b := RTGrapherBuilder new.
b extent: 300 @ 200.

5 timesRepeat: [ 
ds := RTStackedDataSet new.
ds noDot.
ds points: ((1 to: 500) collect: [ :i | 50 atRandom - 25 ]) cumsum.
ds connectColor: Color green.
b add: ds.
].

b addPlugin: RTMeanDevVarPlugin new.
b build.

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The plugin framework exposes to a plugin all the necessary to define a whole range of decorations. For example, variable average lines, linear regression should be trivial to add...

Happy new year!

Alexandre

-- 
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Alexandre Bergel  http://www.bergel.eu
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