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Data blob variable

조회 수: 6(최근 30일)
Mike
Mike 2011년 9월 13일
My goal is to pass a blob of data out of a function that contains a .mat file. Currently I can get close to the desired behavior with the following snippet.
save('functionspace_data.mat');
fid = fopen('functionspace_data.mat');
blob = fread(fid, inf, '*uint8');
But I need to do a similar thing without the use of files in the middle of the code. The format of the blob does not need to be .mat, but does have to be in a format that when converted to a file can quickly reload my function space.
Thanks in advance, Mike

답변(1개)

Walter Roberson
Walter Roberson 2011년 9월 13일
Please vote for the suggestion to expose the serialization routines, http://www.mathworks.com/matlabcentral/answers/1325-what-is-missing-from-matlab#answer_2153 here.
The ease of hacking it yourself depends on what kind of data structures you want to be able to use. Objects and handles are the most difficult; plain numeric arrays can be fairly easy.
Some of the bundling and unbundling work for structures can be done by memmapfile(), but I suspect that might be tend to be on the slower side.
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Walter Roberson
Walter Roberson 2011년 9월 14일
Yup. The closest I've seen is that R2011a (I think it was) introduced a method of serializing graphics files for transmission -- but that was part of the MATLAB Coder tool for generating C code such as for embedded systems.

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