> was reading a bit on the subject of plotting billions of points, and it seems there are libraries which can do it:
> However since I don't know Roassal internals, I cannot tell what's the fundamental difference.
Sounds interesting. I do not think there is any showstopper to have this behavior in Roassal. I went through the documentation you’ve sent. The idea is to select a subset of the points to visualize. So, yes, this is easy :-)
> If I correctly understood the idea. I could reduce my collection of x values:
> having repetitions count of 8 4 3 6 respectively, and set a threshold, for example 4 to obtain:
Yes. You got the point.
> On Oct 28, 2018, at 5:10 PM, Hernán Morales Durand <
[hidden email]> wrote:
>
> Hi Alex,
>
> El vie., 12 oct. 2018 a las 19:37, Alexandre Bergel (<
[hidden email]>) escribió:
> Hi Hernán,
>
> Sorry for the late reply.
>
>
> No problem, my replay is even more delayed!
>
> Regarding your first question, you can do:
> -=-=-=-=-=-=
> g := RTGrapher new.
>
> d := RTData new.
> d connectColor: Color blue.
> d noDot.
> d points: (-3.14 to: 3.14 by: 0.1).
> d y: #sin.
> d x: #yourself.
> g add: d.
>
> g axisX numberOfTicks: 10; numberOfLabels: 5.
> g
> -=-=-=-=-=-=
>
> As you can see, the line "g axisX numberOfTicks: 10; numberOfLabels: 5.” allows you to set the number of ticks and the number of labels.
>
>
> Thanks, with you and Milton's help I could set up the labels as I needed.
>
> Regarding your second question, where can I find the file OrderedCollection_3712516797.obj ?
>
> I think the attachment was truncated in the moose-dev mailing list because I received: Message body is too big: 3346796 bytes with a limit of 1000 KB
> However it should be accessible through the pharo-users mailing list. Let me know if you cannot download it.
>
> Or, how can I reproduce it.
> Anyway, I believe the problem is that you have too many points. In this case, I suggest you to reduce the number of points.
>
>
> I was reading a bit on the subject of plotting billions of points, and it seems there are libraries which can do it:
>
>
http://holoviews.org/user_guide/Large_Data.html>
> This is based on a technique they call datashading.
>
> However since I don't know Roassal internals, I cannot tell what's the fundamental difference.
> Is it a big change to reproduce the datashading principles in Roassal?
>
>
> For example, a slight variation of the previous example [DO NOT RUN IT]:
> -=-=-=-=-=-=
> points := -3.14 to: 3.14 by: 0.000001.
>
> g := RTGrapher new.
>
> d := RTData new.
> d connectColor: Color blue.
> d noDot.
> d points: points.
> d y: #sin.
> d x: #yourself.
> g add: d.
>
> g axisX numberOfTicks: 10; numberOfLabels: 5.
> g
> -=-=-=-=-=-=
>
> The script tries to build the same graph but with 6 280 001 points. Which obviously, is way too many.
>
> Instead, you can do something like:
> -=-=-=-=-=-=
> points := SortedCollection new.
> 1000 timesRepeat: [ points add: (-3.14 to: 3.14 by: 0.000001) atRandom ].
>
> g := RTGrapher new.
>
> d := RTData new.
> d connectColor: Color blue.
> d noDot.
> d points: points.
> d y: #sin.
> d x: #yourself.
> g add: d.
>
> g axisX numberOfTicks: 10; numberOfLabels: 5.
> g
> -=-=-=-=-=-=
>
> Which only display the graph with 1000 points.
>
>
> If I correctly understood the idea. I could reduce my collection of x values:
>
> #(15 15 15 15 15 15 15 15 20 20 20 20 32 32 32 45 45 45 45 45 45)
>
> having repetitions count of 8 4 3 6 respectively, and set a threshold, for example 4 to obtain:
>
> #(15 15 20 45)
>
> Is that correct?
>
> Cheers,
>
> Hernán
>
> Cheers,
> Alexandre
>
>
>> On Oct 4, 2018, at 12:49 AM, Hernán Morales Durand <
[hidden email]> wrote:
>>
>> This is weird, could you check:
>>
>>
http://lists.pharo.org/pipermail/pharo-users_lists.pharo.org/2018-October/040771.html>>
>> Hernán
>>
>> El mié., 3 oct. 2018 a las 22:41, Alexandre Bergel
>> (<
[hidden email]>) escribió:
>>>
>>> I am lost. What are the questions? I do not see them in the mailing list.
>>>
>>> Alexandre
>>>
>>>> On Oct 3, 2018, at 11:11 AM, Hernán Morales Durand <
[hidden email]> wrote:
>>>>
>>>> Hi Alex,
>>>>
>>>> Thanks. Please note there are two questions related to Roassal :)
>>>> I have isolated the script so you don't need to load BioSmalltalk
>>>>
>>>> Maybe someone can check or give a hint?
>>>>
>>>> El mar., 2 oct. 2018 a las 22:31, Alexandre Bergel
>>>> (<
[hidden email]>) escribió:
>>>>>
>>>>> Pretty cool!
>>>>>
>>>>> Alexandre
>>>>>
>>>>>> On Oct 2, 2018, at 2:21 AM, Hernán Morales Durand <
[hidden email]> wrote:
>>>>>>
>>>>>> <a TRMorph(28411392).png><skew_diagram_ecoli.png>
>>>>>
>>>>> _______________________________________________
>>>>> Moose-dev mailing list
>>>>>
[hidden email]
>>>>>
https://www.list.inf.unibe.ch/listinfo/moose-dev>>>>
>>>
>>> _______________________________________________
>>> Moose-dev mailing list
>>>
[hidden email]
>>>
https://www.list.inf.unibe.ch/listinfo/moose-dev>>
>
> _______________________________________________
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>
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>
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