19 Nov
2015
19 Nov
'15
12:50 a.m.
Hi Hernan
Try the next piece of code and tell me what you think
| b data |
data := (0 to: 40000 by: 1000)
collect: [:n | n@ (Random new next * 3) floor].
b := RTGrapher new.
b extent: 1000@ 200.
ds := RTData new.
ds dotShape rectangle height: 1; width: 25; color: Color blue.
ds connectUsing: (RTLine new
color: (Color blue);
width: 1;
withHorizontalAttachPoint; yourself).
ds
points: data;
x: #x;
y: #y.
b add: ds.
b axisX.
b axisY title: 'alles Count'.
b build.
[image: Imágenes integradas 1]
Cheers,
Milton
2015-11-18 17:15 GMT-04:00 Hernán Morales Durand <hernan.morales(a)gmail.com>om>:
Hello,
I am using Roassal2 (StephanEggermont.40) in Pharo 4. The attached picture
displays a common visualization for inference of local ancestry in
population genetics, I have attached what I am getting now with Grapher.
Input data for such visualization is for example:
1:454 2:1488 1:2546 2:5711 1:14253 2:24411 1:31490 0:41585
(those are like Associations with key 0, 1 or 2 and value 454, 1488, ...
etc)
In the attached picture
Min X is 0 and
Max X is 41500
so the X axis (chromosome positions) is rendered in intervals between
10000.
This is what I am trying now (code is commented where I tried to configure
X axis interval)
| b intv |
intv := 0 to: 40000 by: 10000.
b := RTGrapher new.
ds := RTStackedDataSet new.
ds dotShape color: Color red.
ds
points: #(1 2 1 2 1 2 1 0);
x: intv. "????"
ds barShape width: 99; color: Color red.
"b
minX: 0;
maxX: 41500."
b add: ds.
b axisX noLabel; noTick. b axisY noDecimal.
b build.
I have some questions:
1) There is support to add an interval label to the X axis but preserving
the space relation with the real chromosome position (the X axis) for the
data (points in my example = 454 1488 2546 5711 14253 24411 31490 41585)?
2) How to clear the bar filling?
Any advice or help would be really nice.
Hernán
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