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Re: low level I/O (GPIB, USBTMC, VXI11)
From: |
c. |
Subject: |
Re: low level I/O (GPIB, USBTMC, VXI11) |
Date: |
Sun, 25 Nov 2012 16:51:48 +0100 |
On 25 Nov 2012, at 16:43, Richard wrote:
> Really? so i can have a C++ class, and call it and its methods from an m-file
> in Octave, and have it persist like a real C++ object from one call of its
> methods to the next?
Actually I was referring to using the class from an .oct file not from an .m
file ...
anyway yes you can construct a new class in c++ and have it accessible in the
interpreter
an be persistent between calls.
In order to do this your class must inherit from the octave_base_value class.
> This is not possible with plain mex files in Matlab because you must create
> an instance of a C++ class which will be destroyed once the mex file
> completes (which is the problem that using handle classes in the linked
> example solves). As I understood it Octave has the same limitation, but since
> it does not yet have classdef, there is no way to do the same thing. I'd be
> very interested hear if there was though, or that I have misunderstood
> something about oct files.
The instrument control package is a working example of how this can be done,
for a much simpler example you can have a look at these files:
http://inversethought.com/hg/what-is-octave/file/f8c352d9af2d/PoliMI2012/examples/myobject.h
http://inversethought.com/hg/what-is-octave/file/f8c352d9af2d/PoliMI2012/examples/myobject.cc
which are examples taken from this presentation
http://jordi.platinum.linux.pl/octave/what-is-octave.pdf
> Richard
c.
- Re: low level I/O (GPIB, USBTMC, VXI11), (continued)
- Re: low level I/O (GPIB, USBTMC, VXI11), Stefan Mahr, 2012/11/23
- Re: low level I/O (GPIB, USBTMC, VXI11), Stefan Mahr, 2012/11/23
- Re: low level I/O (GPIB, USBTMC, VXI11), Stefan Mahr, 2012/11/25
- Re: low level I/O (GPIB, USBTMC, VXI11), c., 2012/11/25
- Re: low level I/O (GPIB, USBTMC, VXI11), Richard, 2012/11/25
- Re: low level I/O (GPIB, USBTMC, VXI11), Stefan Mahr, 2012/11/25
- Re: low level I/O (GPIB, USBTMC, VXI11), Juan Pablo Carbajal, 2012/11/25
- Re: low level I/O (GPIB, USBTMC, VXI11), c., 2012/11/25
- Re: low level I/O (GPIB, USBTMC, VXI11), c., 2012/11/25
- Re: low level I/O (GPIB, USBTMC, VXI11), Richard, 2012/11/25
- Re: low level I/O (GPIB, USBTMC, VXI11),
c. <=
- Re: low level I/O (GPIB, USBTMC, VXI11), Richard, 2012/11/25
Re: low level I/O (GPIB, USBTMC, VXI11), Stefan Mahr, 2012/11/27