Class: MatrixAccessor

• Inheritance
• Description
• Class protocol
  • instance creation
• Instance protocol
  • accessing
  • private-initialization
  • species instance creation
• Examples

Inheritance:

   Object
   |
   +--Collection
      |
      +--SequenceableCollection
         |
         +--AbstractMultidimensionalArray
            |
            +--AbstractMatrix
               |
               +--MatrixAccessor

Package:

stx:libbasic

Category:

Collections-MultiDimensional

Version:

rev: 1.8 date: 2021/02/28 17:25:16

user: cg

file: MatrixAccessor.st directory: libbasic

module: stx stc-classLibrary: libbasic

Description:

Matrix-Access for arbitrary sequenceable collections.
Allows arbitrary collections which offer access by an integer index
to function as matrices.


[instance variables:]

[class variables:]

copyright
COPYRIGHT (c) 2018 by eXept Software AG
             All Rights Reserved

This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice.   This software may not
be provided or otherwise made available to, or used by, any
other person.  No title to or ownership of the software is
hereby transferred.

Class protocol:

 collection: coll dimensions: dimensions

Instance protocol:

 at: index

Modified (comment): / 28-02-2021 / 18:05:07 / cg

 at: index put: val

Modified (comment): / 28-02-2021 / 18:05:11 / cg

 size

(comment from inherited method)
return the number of elements in the collection.
concrete implementations must define this

 collection: arrayArg

 collection: arrayArg dimensions: dimensionsArg

 speciesNew: size

create a new instance of my species.
MUST be redefined especially for MatrixAccessor

Examples:

  |m|

  m := FloatArray[3][3].
  m [2][1] := 1.  
  m [2][2] := 2.  
  m [2][3] := 3.  
  m  

  |sz m1 m2|

  sz := 100.
  m1 := FloatArray[sz][sz].
  m2 := FloatArray[sz][sz].
  1 to:(sz*sz) do:[:i | 
      m1 at:i put:(Random next).
      m2 at:i put:(Random next).
  ].
  m1 * m2