Represents a two-dimensional array of data. The number of rows and columns is fixed.
Create an array of the specified size.
a = Array2D.new(3,4);a[2,2] = 1;a.postlnBuild an Array2D from the supplied array.
xxxxxxxxxxa = Array2D.fromArray(3,4, [9,8,7,6,5,4,3,2,1,2,3,4]);a[2,2] = 1;a.postlnGet a value from the array.
xxxxxxxxxxa.at(2,3);a[2,3];Put a value into the array.
xxxxxxxxxxa.put(2,3, 72);a[2,3] = 72;Iterate over the columns. Each column will be passed to func in turn.
xxxxxxxxxxa.colsDo(_.postln);Iterate over the rows. Each row will be passed to func in turn.
xxxxxxxxxxa.rowsDo(_.postln);Retrieve a single column.
xxxxxxxxxxa.colAt(2);Retrieve a single row.
xxxxxxxxxxa.rowAt(2);// "a" is an array-of-arraysa = { { 100.0.rand }.dup(100) }.dup(100);// "b" is an equivalent Array2D, made using the "fromArray" class methodb = Array2D.fromArray(100,100, a.flat);// Accessinga[15][22]b[15, 22]// Speed comparison 1: random accessbench { 100.do(a[100.rand][100.rand]) }bench { 100.do(b[100.rand, 100.rand]) }// Speed comparison 2: iterationbench { 100.do(a.do { |row| row.do { |item| item * 2 } }) }bench { 100.do(b.do { |item| item * 2 }) }