> If I manually set RTAbstractData>>computeMinAndMaxForX
>
>     ..
>     minX := self builder minX.
>     maxX := self builder maxX.
>     ...
>
> then nothing is displayed.
>
>
> Can you provide a simple examples that I can reproduce on my computer ? :-)
>

> Cheers,
> Alexandre
>
>
> 2017-07-13 16:44 GMT-03:00 Alexandre Bergel <[hidden email]>:
>>
>> Consider the example:
>> -=-=-=-=-=-=-=-=-=
>> g := RTGrapher new.
>>
>> ds := RTData new.
>> ds barShape.
>> ds points: #(1 2 3 -2).
>> ds maxX: 10.
>> g add: ds.
>>
>> g configureForBarCharts.
>> g axisX
>> numberOfLabels: 4;
>> labelConversion: [ :value | value + 500 ].
>>
>> g
>> -=-=-=-=-=-=-=-=-=
>> <Screenshot 2017-07-13 21.44.20.png>
>>
>> Does this solve your problem?
>>
>> Cheers,
>> Alexandre
>>
>> --
>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>> Alexandre Bergel  http://www.bergel.eu
>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>
>>
>>
>> On Jul 13, 2017, at 7:22 PM, Hernán Morales Durand
>> <[hidden email]> wrote:
>>
>> Hi Alex,
>>
>> Thank you for taking care of this issue.
>> The problem is partially fixed. I saw you implemented
>>
>> >>configureForBarCharts
>>
>>     self datasets do: #offsetForBarCharts.
>>     self minX: 0.5.
>>     self maxX: self getMaxNumberOfPoints.
>>     self axisX noTick.
>>
>> However, I want to display the ticks, so I borrowed the first 3 lines for
>> my plot method :
>>
>> >>plotHistogramBins: binNumber xAxisLabel: axisXLabel yAxisLabel:
>> >> axixYLabel color: aColor barWidth: barWidth
>>
>>     | bins minPoint g ds |
>>
>>     bins := self groupedBySeqLengthDistribution: binNumber.
>>     minPoint := ((bins reject: #isEmpty) detectMin: #size) anyOne size.
>>
>>     " Build diagram "
>>     g := RTGrapher new
>>             extent: 500 @ 200;
>>             minX: minPoint;
>>             withoutOrigin;
>>             yourself.
>>     ds := RTData new
>>         points: bins;
>>         x: [ : c | c ifEmpty: [ minPoint ] ifNotEmpty: [ : d | d anyOne
>> size ] ];
>>         y: #size.
>>     ds barShape
>>         borderColor: Color black;
>>         color: aColor;
>>         width: barWidth.
>>     g add: ds.
>>
>>     " Configure axis settings "
>>     g axisY
>>         title: axixYLabel;
>>         color: Color black;
>>         noDecimal.
>>     g axisX
>>         noDecimal;
>>         fromPoint: minPoint;
>>         color: Color black;
>>         title: axisXLabel.
>>
>>     g datasets do: #offsetForBarCharts.
>>     g minX: 0.
>>     g maxX: g getMaxNumberOfPoints.
>>
>>     " Open visualization in a new window "
>>     g open.
>>
>>
>> Now the shift problem is fixed, but I lost the sequence lengths in the X
>> axis. Please see the two attached screenshots.
>>
>> Cheers,
>>
>> Hernán
>>
>>
>>
>> 2017-07-09 5:20 GMT-03:00 Alexandre Bergel <[hidden email]>:
>> Hi Hernán,
>>
>> Sorry to reply to late.
>>
>> Can you update Roassal and try:
>>
>> -=-=-=-=-=-=-=-=-=
>> g := RTGrapher new.
>>
>> ds := RTData new.
>> ds barShape.
>> ds points: #(1 2 3 -2).
>> ds maxX: 10.
>> g add: ds.
>>
>> g configureForBarCharts.
>>
>> g
>> -=-=-=-=-=-=-=-=-=
>>
>> The call configureforBarCharts should do what you expect.
>>
>> Cheers,
>> Alexandre
>> <Screenshot 2017-07-09 10.20.26.png>
>>
>> --
>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>> Alexandre Bergel  http://www.bergel.eu
>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>
>>
>>
>> On Jun 16, 2017, at 4:35 PM, Hernán Morales Durand
>> <[hidden email]> wrote:
>>
>> Hi Alex
>>
>> I attached another screenshot which describes exactly the problem.
>>
>> 2017-06-16 10:40 GMT-03:00 Alexandre Bergel <[hidden email]>:
>> Hi Hernán,
>>
>> I am not sure what exactly is the problematic situation you describe. Why
>> you cannot simply with with #minX: and #maxX: ?
>>
>>
>> My script actually sets minX: but it is wrongly drawn in the histogram
>>
>> For example, I tried to reuse the code you have provided. I can have:
>>
>>     bins := #(#(1 1 1 1 ) #(2 2 2) #(5 5 5 5 5)).
>>     minPoint := ((bins reject: #isEmpty) detectMin: [ : c | c size ])
>> anyOne.
>>
>>     " Build diagram "
>>     g := RTGrapher new
>>             extent: 500 @ 200;
>>             minX: 0;
>> maxX: 6;
>>             withoutOrigin;
>>             yourself.
>>     ds := RTData new
>>         points: bins;
>>         x: [ : c | c ifEmpty: [ minPoint ] ifNotEmpty: [ : d | d anyOne ]
>> ];
>>         y: #size.
>>     ds barShape
>>         borderColor: Color black;
>>         color: Color red trans;
>> width: 30.
>>     g add: ds.
>>
>>     g
>> <Screenshot 2017-06-16 09.39.25.png>
>>
>>
>> But you can have "minX: 1", which in that case, the first bar is above the
>> Y-Axis. This is what one would expect.
>>
>>
>> The problem is not positioning the bars above the Y-Axis, but positioning
>> them in the X-Axis.
>>
>> Which rendering do you wish to have? Can you provide a self-contained
>> piece of code that I can run on my machine?
>>
>>
>> If you have some time you could install BioSmalltalk in Pharo 5 (I haven't
>> tested Pharo 6 yet) and evaluate the problematic expression:
>> Metacello new
>>     smalltalkhubUser: 'hernan' project: 'BioSmalltalk';
>>     configuration: 'BioSmalltalk';
>>     version: #bleedingEdge;
>>     load
>>
>> (BioParser parseMultiFastaFile: BioObject testFilesDirectoryName
>> asFileReference / 'ls_orchid.fasta')
>>     plotHistogramBins: 20
>>     xAxisLabel: 'Sequence lengths (bp)'
>>     yAxisLabel: 'Count'
>>     color: Color red
>>
>> Cheers,
>>
>> Hernán
>>
>> Cheers,
>> Alexandre
>> --
>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>> Alexandre Bergel  http://www.bergel.eu
>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>
>>
>>
>> On Jun 15, 2017, at 1:16 AM, Hernán Morales Durand
>> <[hidden email]> wrote:
>>
>> Hi guys,
>>
>> I am experiencing a problem visualizing histograms in Roassal with Pharo
>> 5. In the attached image you can observe the first bar shape starts from a
>> negative X axis value, where I want to start from 0. Besides, some bars are
>> gapped but I don't know why.
>>
>> I am using with the following code:
>>
>>     | bins minPoint g ds |
>>
>>     bins := self groupedBySeqLengthDistribution: binNumber.
>>     minPoint := ((bins reject: #isEmpty) detectMin: [ : c | c size ])
>> anyOne size.
>>
>>     " Build diagram "
>>     g := RTGrapher new
>>             extent: 500 @ 200;
>>             minX: minPoint;
>>             withoutOrigin;
>>             yourself.
>>     ds := RTData new
>>         points: bins;
>>         x: [ : c | c ifEmpty: [ minPoint ] ifNotEmpty: [ : d | d anyOne
>> size ] ];
>>         y: #size.
>>     ds barShape
>>         borderColor: Color black;
>>         color: aColor;
>>         width: barWidth.
>>     g add: ds.
>>
>>     " Configure axis settings "
>>     g axisY
>>         title: axixYLabel;
>>         color: Color black;
>>         noDecimal.
>>     g axisX
>>         noDecimal;
>>         fromPoint: minPoint;
>>         color: Color black;
>>         title: axisXLabel.
>>     " Open visualization in a new window "
>>     g open.
>>
>> Any idea what I am missing?
>>
>> Cheers,
>>
>> Hernán
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