16 Jun
2017
16 Jun
'17
4:35 p.m.
Hi Alex
I attached another screenshot which describes exactly the problem.
2017-06-16 10:40 GMT-03:00 Alexandre Bergel <alexandre.bergel(a)me.com>om>:
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
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 <
hernan.morales(a)gmail.com> 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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