Hi,

I want to be able to create an array view on a subset of a multi_array(MA)’s dimensions.

So, say I have a MA of dimension M and I want to choose N (N <M) dimensions of it which I put on a boost::array.

Say, I want to keep the entire range for each dimension.

Is there a way to do this in a general fashion, i.e. w/out the use of the subscript operator on the indices object ?

The documentation mentions something like :

 

typedef boost::multi_array< double, 3 > Grid3D;

typedef Grid3D::size_type size_type;

typedef Grid3D::index index;

typedef Grid3D::index_range index_range;

 

typedef Grid3D::array_view<2>::type Slice2D;

index_range r1; //( 0, iMax);

index_range r3; //( 0, kMax);

Grid3D::index_gen indices;

Slice2D sliceJ2 = grid[indices

    [r1]

    [2]

    [r3]

    ];

but this is not sufficient for a generic construction.

 

And also, what is the difference between array_view and subarray ?

 

Thank you very much in advance,

Petros