Roassal Grapher problem

> On Jun 28, 2015, at 1:24 PM, Serge Stinckwich <[hidden email]> wrote:
>
> For some function, the Roassal Grapher is not really good.
> Try this for example:
>
> b := RTGrapher new.
> b extent: 600 @ 200.
> ds := RTDataSet new.
> ds dotShape ellipse size: 0.
> ds points: (-2.0 to: 10.0 by: 0.001).
> ds connectColor: Color red.
> ds x: #yourself.
> ds y: [ :x | (x exp) sin ].
> b add: ds.
> b axisXWithNumberOfTicks: 3.
> b axisYWithNumberOfTicks: 4.
> b build.
> b view
>
> This is well known problem when someone use n-equally space joint in a grapher.
> There is some explanation here:
> http://maurizzzio.github.io/function-plot/
>
> The solution need to implement an interval arithmetic library apparently.
> Nicolas implement an arbitrary-precision float library available in
> SciSmalltalk, but I not sure this is enough for a grapher.
>
> --
> Serge Stinckwich
> UCBN & UMI UMMISCO 209 (IRD/UPMC)
> Every DSL ends up being Smalltalk
> http://www.doesnotunderstand.org/
> <Screen Shot 2015-06-28 at 18.05.57.png>_______________________________________________
> Moose-dev mailing list
> [hidden email]
> https://www.iam.unibe.ch/mailman/listinfo/moose-dev

> On Jun 28, 2015, at 1:24 PM, Serge Stinckwich <[hidden email]> wrote:
>
> For some function, the Roassal Grapher is not really good.
> Try this for example:
>
> b := RTGrapher new.
> b extent: 600 @ 200.
> ds := RTDataSet new.
> ds dotShape ellipse size: 0.
> ds points: (-2.0 to: 10.0 by: 0.001).
> ds connectColor: Color red.
> ds x: #yourself.
> ds y: [ :x | (x exp) sin ].
> b add: ds.
> b axisXWithNumberOfTicks: 3.
> b axisYWithNumberOfTicks: 4.
> b build.
> b view
>
> This is well known problem when someone use n-equally space joint in a grapher.
> There is some explanation here:
> http://maurizzzio.github.io/function-plot/
>
> The solution need to implement an interval arithmetic library apparently.
> Nicolas implement an arbitrary-precision float library available in
> SciSmalltalk, but I not sure this is enough for a grapher.
>
> --
> Serge Stinckwich
> UCBN & UMI UMMISCO 209 (IRD/UPMC)
> Every DSL ends up being Smalltalk
> http://www.doesnotunderstand.org/
> <Screen Shot 2015-06-28 at 18.05.57.png>_______________________________________________
> Moose-dev mailing list
> [hidden email]
> https://www.iam.unibe.ch/mailman/listinfo/moose-dev