Updating grapher graphs as data comes in

> On Jan 21, 2015, at 5:12 PM, Johan Fabry <[hidden email]> wrote:
>
> Hi all,
>
> I am thinking about a specific setting where I want to make a scatterplot that is somewhat dynamic: I have collections of points coming in regularly and when a new collection has arrived I want to remove the existing plot and show the new data. I thought I would be able to do something with the existing Grapher infrastructure. My idea was to remove all elements from the open RTView instance, then remove the dataset from the RTGrapher instance, add the new dataset to the RTGrapher instance and call build again. But I cannot remove a dataset from a RTGrapher, so apparently no go.
>
> Is there a way to do something like this without making modifications to Roassal? I could hack something together of course but prefer existing infrastructure, if present.
>
> Also, I want to set max X and max Y beforehand because I know what the range of the incoming points is.  
>
> Any pointers would be appreciated!
>
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>
> Johan Fabry   -   http://pleiad.cl/~jfabry
> PLEIAD lab  -  Computer Science Department (DCC)  -  University of Chile
>
>
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> On Jan 21, 2015, at 5:12 PM, Johan Fabry <[hidden email]> wrote:
>
> Hi all,
>
> I am thinking about a specific setting where I want to make a scatterplot that is somewhat dynamic: I have collections of points coming in regularly and when a new collection has arrived I want to remove the existing plot and show the new data. I thought I would be able to do something with the existing Grapher infrastructure. My idea was to remove all elements from the open RTView instance, then remove the dataset from the RTGrapher instance, add the new dataset to the RTGrapher instance and call build again. But I cannot remove a dataset from a RTGrapher, so apparently no go.
>
> Is there a way to do something like this without making modifications to Roassal? I could hack something together of course but prefer existing infrastructure, if present.
>
> Also, I want to set max X and max Y beforehand because I know what the range of the incoming points is.  
>
> Any pointers would be appreciated!
>
> ---> Save our in-boxes! http://emailcharter.org <---
>
> Johan Fabry   -   http://pleiad.cl/~jfabry
> PLEIAD lab  -  Computer Science Department (DCC)  -  University of Chile
>
>
> _______________________________________________
> Moose-dev mailing list
> [hidden email]
> https://www.iam.unibe.ch/mailman/listinfo/moose-dev

> On Jan 21, 2015, at 5:46 PM, Tudor Girba <[hidden email]> wrote:
>
> You people are getting more and more demanding! :)
>
> @Alex et co: it's all your fault because you keep teasing our imagination :).
>
> Thanks everyone. These are exciting times.
>
> Cheers,
> Doru
>
>
> On Wed, Jan 21, 2015 at 9:41 PM, Serge Stinckwich <[hidden email]> wrote:
> On Wed, Jan 21, 2015 at 9:35 PM, Johan Fabry <[hidden email]> wrote:
> > Cool :-)
> >
> > I just need a scatterplot. Data will be a RTStackedDataSet, of always the same number of points, and I know this number in advance. I know what min and max Y will be. I would like to be able to set ticks at specific places at the X and Y axis, but if that is not possible a number of ticks is OK **if** I can guarantee that one will be set at the median of X. In Y this is not so important right now.
> >
> > PS: It’s for robots!  ;-)
>
> I would like to have something similar for sensors outputs ;-)
>
> --
> Serge Stinckwich
> UCBN & UMI UMMISCO 209 (IRD/UPMC)
> Every DSL ends up being Smalltalk
> http://www.doesnotunderstand.org/
>
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>
>
> --
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>
> "Every thing has its own flow"
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> On Jan 22, 2015, at 22:20, Alexandre Bergel <[hidden email]> wrote:
>
> Hi Johan!
>
> We have produced the class RTDynamicGrapher. You can dynamically add elements. Here is a try:
>
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> b := RTDynamicGrapher new.
> b maxX: 100.
> b maxY: 100.
>
> b x: #x; y: #y.
>
> b shape circle color: (Color red alpha: 0.3).
> b view addMenu: '+ 10' callback: [
> b addAll: ((1 to: 10) collect: [ :i | (100 atRandom @ 100 atRandom) ]) ].
> ^ b  
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>
> Once you have set your instance of RTDynamicGrapher, then you can use #add:, #addAll: to add elements. You can also change the shape if necessary.
>
> I believe this should completely fulfill your requirements :-)
>
> Cheers,
> Alexandre

> On Jan 22, 2015, at 22:30, Alexandre Bergel <[hidden email]> wrote:
>
> Yes this is indeed exciting times!
>
> Alexandre
>
>
>> On Jan 21, 2015, at 5:46 PM, Tudor Girba <[hidden email]> wrote:
>>
>> You people are getting more and more demanding! :)
>>
>> @Alex et co: it's all your fault because you keep teasing our imagination :).
>>
>> Thanks everyone. These are exciting times.
>>
>> Cheers,
>> Doru