I also like the , message for those vectors and the concatenation of dimensions makes sense. vector := (1,3,4,5,7,-2). looks how it should be. Readable, easy to translate vector stuff from reference text. Phil On Thu, Oct 26, 2017 at 7:00 AM, Nicolai Hess <nicolaihess@gmail.com> wrote:
Am 25.10.2017 10:50 PM schrieb "Torsten Bergmann" <astares@gmx.de>:
Hi,
there might be reasons for an own 2D vector class (instead of using Point). But still I dislike the reimplementation of "," because for me so far it has the meaning of "concatenating things".
Like concatenating coordinates :-)
Here you redefine it to create vector instances and it works only up to three so far. Right?
I understand that this gives some similarities with the math notation (1,2) but I personally would prefer to use:
1@2 asVector
or Vector2D x: 1 y: 2
Thx T.
Gesendet: Mittwoch, 25. Oktober 2017 um 20:06 Uhr Von: "Tudor Girba" <tudor@tudorgirba.com> An: "Pharo Development List" <pharo-dev@lists.pharo.org> Betreff: [Pharo-dev] , for vector creation
Hi,
As mentioned in the separate thread, we played with introducing the extension:
, aNumber ^ BlVector2D x: self y: aNumber
This means that (10,20) will return a 2D vector.
We also have (10,20,30) which returns a 3D vector.
, is used for different meanings already in the image beside the collection concatenation. For example, in FileReference is adds a file extension. And Exceptions create a collection. In other packages, PetitParser uses it as a sequence operator.
Please voice your concerns.
Cheers, Doru
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