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fold_slice/+astra/private/add_to_3D.m
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2026-08-07 15:56:42 +09:00

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% FUNCTION full_array = add_to_3D(full_array, small_array, position)
% add one small 3D block into large 3D array
% Inputs:
% full_array
% small_array
% position - offset from (1,1,1) coordinate in pixels
% *-----------------------------------------------------------------------*
% |                                                                       |
% |  Except where otherwise noted, this work is licensed under a          |
% |  Creative Commons Attribution-NonCommercial-ShareAlike 4.0            |
% |  International (CC BY-NC-SA 4.0) license.                             |
% |                                                                       |
% |  Copyright (c) 2017 by Paul Scherrer Institute (http://www.psi.ch)    |
% |                                                                       |
% |      Author: CXS group, PSI  |
% *-----------------------------------------------------------------------*
% You may use this code with the following provisions:
%
% If the code is fully or partially redistributed, or rewritten in another
% computing language this notice should be included in the redistribution.
%
% If this code, or subfunctions or parts of it, is used for research in a
% publication or if it is fully or partially rewritten for another
% computing language the authors and institution should be acknowledged
% in written form in the publication: “Data processing was carried out
% using the “cSAXS matlab package” developed by the CXS group,
% Paul Scherrer Institut, Switzerland.”
% Variations on the latter text can be incorporated upon discussion with
% the CXS group if needed to more specifically reflect the use of the package
% for the published work.
%
% A publication that focuses on describing features, or parameters, that
% are already existing in the code should be first discussed with the
% authors.
%
% This code and subroutines are part of a continuous development, they
% are provided “as they are” without guarantees or liability on part
% of PSI or the authors. It is the user responsibility to ensure its
% proper use and the correctness of the results.
%
%
%
function full_array = add_to_3D(full_array, small_array, position)
position = round(position);
N_f = size(full_array);
N_s = size(small_array);
for i = 1:ndims(full_array)
ind_f{i} = unique(min(N_f(i),max(1,position(i)+(1:N_s(i)))));
ind_s{i} = unique(min(N_s(i),max(1,ind_f{i}-position(i))));
end
full_array(ind_f{:}) = full_array(ind_f{:}) + small_array(ind_s{:});
end