[chuck-users] reference sub-sections of multi-dimensional arrays

29 Apr 2008

      hi all ... this is my first post to the list. so, as you would guess,  
i'm new to chuck.

the question ...

i'm working on a class with following functionality:
serial 12 tone row in > calculate a 12 tone matrix (2D array) >  
lookup indexed rows (transposition) and/or lookup indexed columns  
(inversion) > output lookups as 1D arrays

the row (x) part is simple:

array2D[ row# ] @=> int array1D[];

but, is it possible to reference the y subsection of a 2D array?

i know i could do it with a function i.e.:

int i[12];

fun void invrton ( int y ) {
	for (0 => int x; x < 12; x++) {
		toneRow.matrix[x][y] => i[x];
	}
}

invrton(1);

this will assign i[] as values of column i(1), but is there a way w/o  
the function?

i'll most likely put both lookups in the public twlvTone class so the  
patterns can be accessed by shered-ed instruments.

anyway ... here's the full code:

public class twlvTone
{
	int matrix[12][12];

	fun void setMatrix ( int p0[] ) {
	    for (0 => int x; x < 12; x++) {
	        for (0 => int y; y < 12; y++) {
	            (p0[x] + ((12 - p0[y]) % 12)) % 12 => matrix[y][x];
	        }
	    }
	}

}

twlvTone toneRow;

toneRow.setMatrix( [0, 11, 7, 8, 3, 1, 2, 10, 6, 5, 4, 9] );

<<< toneRow.matrix[0][5] >>>;

toneRow.matrix[1] @=> int t1[];
<<< t1[11] >>>;

thanks,
eli

[chuck-users] reference sub-sections of multi-dimensional arrays

eli queen