15 Jun
2017
15 Jun
'17
7:16 a.m.
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
