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How do I extract data cursor structure elements to an array in MATLAB 7.7 (R2008b)?

3 次查看（过去 30 天）
Yuki
Yuki 2011-1-12
I want to save elements in a data cursor structure in a workspace into an array without using loop iterators (using a single command).

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回答（2 个）

Shigeru Sasao
Shigeru Sasao 2011-1-13
plot(1:10);
%In the figure select say 3 data cursor points using DataCursor utility
% To select multiple points use ALT key
array_position = reshape([cursor_info.Position],2,3);
Walter Roberson
Walter Roberson 2011-1-22
Copied from my answer to the duplicate question #136:
YourCell = struct2cell(getCursorInfo(dcm_obj));
However, your question is not clear about whether you want to save all of the structure fields or only some of them, and is not clear about what kind of array you expect as a result. For example you might instead happen to need something more like
YourArray = cell2mat(arrayfun(@(S) S.Position, getCursorInfo(dcm_obj), 'Uniform', 0));
The above code could be simplified and the arrayfun syntactic sugar hiding a loop could be removed if it was permissible to use two commands:
t = getCursorInfo(dcm_obj);
YourArray = vertcat(t.Position);
Please be advised that insisting that only one command be used can result in code that is hard to read and inefficient.

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