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H5S.select_hyperslab

Select hyperslab region

Syntax

H5S.select_hyperslab(space_id,op,h5_start,h5_stride,h5_count,h5_block)

Description

H5S.select_hyperslab(space_id,op,h5_start,h5_stride,h5_count,h5_block) selects a hyperslab region to add to the current selected region for the data space specified by space_id. The op argument determines how the new selection is to be combined with the previously existing selection for the data space. Possible values include: H5S_SELECT_SET, H5S_SELECT_OR, H5S_SELECT_AND, H5S_SELECT_XOR, H5S_SELECT_NOTA, or H5S_SELECT_NOTB.

The h5_start array determines the starting coordinates of the hyperslab to select. The h5_count array determines how many blocks to select from the data space, in each dimension. The h5_stride array specifies how many elements to move in each dimension. The h5_block array determines the size of the element block selected from the data space.

If h5_stride is specified as [], then a contiguous hyperslab is selected, as if each value in h5_stride were set to 1. If h5_count is specified as [], the number of blocks selected along each dimension defaults to 1. If h5_block is specified as [], then the block size defaults to a single element in each dimension, as if each value in the block array were set to 1.

    Note:   The HDF5 library uses C-style ordering for multidimensional arrays, while MATLAB® uses FORTRAN-style ordering. The h5_start, h5_stride, h5_count and h5_block parameters assume C-style ordering. Please consult "Using the MATLAB Low-Level HDF5 Functions" in the MATLAB documentation for more information.

Examples

dims = [100 200];
h5_dims = fliplr(dims);
space_id = H5S.create_simple(2,h5_dims,h5_dims);
start = fliplr([10 20]); block = fliplr([20 30]);
H5S.select_hyperslab(space_id,'H5S_SELECT_SET',start,[],[],block);

See Also

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