Azzera filtri
Azzera filtri

De-serialze char array to object

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Gebhard Stopper
Gebhard Stopper il 22 Nov 2018
Commentato: Guillaume il 22 Nov 2018
Hi,
I'm trying to convert a char array to an object. The char array used to be a MATLAB object which has been serialized and has a structure like this:
hBeams.stackUseStartPower = 1
hBeams.stackUserOverrideLz = false
hChannels.channelAdcResolution = {12 12 12 12}
hChannels.channelDisplay = [1;2;3;4]
(This is just a small portion of the char, there is much more data in reality).
Basically, I wat to de-serialze the string and recover the object so I can access its values.
When I use eval() it parses the string into an object and stores it in the current workspace. However, I need to store the data in a variable of another object.
Also, since it is usually not recommended to use eval(), is there a better (more elegant) way to do this?
Best,
Gebhard

Risposte (1)

Stephen23
Stephen23 il 22 Nov 2018
  5 Commenti
Gebhard Stopper
Gebhard Stopper il 22 Nov 2018
"Third option: ditch the 3rd party application. It doesn't inspire much confidence. What other gremlins does it hide?"
That is not an option. We need that software to run our Microscopes...
The char array is stored in TIFF files as metadata, holding all kinds of parameters, so I guess there are not many options how to store that data...
I think I'll stick with the eval() option for now and try to get a better solution when I have a more time to implement it.
Guillaume
Guillaume il 22 Nov 2018
so I guess there are not many options how to store that data
There are plenty of well established techniques for storing metadata. In TIFF files, they could have used private tags (and documented them). Alternatively, they could have used common serialisation formats instead of inventing their own. The two most common serialisation formats, json and xml, are both supported by matlab and can be transformed into a single variable in one line:
settings = jsondecode(serialisedstream);

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