Re: Accessing Octave functions from DEFUN_DLD files

[Geraint Paul Bevan]

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P S Bettridge wrote:

| I have successfully created a dynamically linked function written in
C++ which
| continuously accesses packets of data and creates a set of global
variables but
| cannot seem to find a way to implement a user defined Octave function
or script
| from the DEFUN_DLD file. Is there a way to refer to such a function in
C++ ?
|

When you say "implement", do you mean 'call' or 'define'? You can call
scripts and functions (m files) using the 'feval' function. You will
have to #include <octave/parse.h> for this.

| Also I keep having trouble with accessing data from Octave into C++
because I
| can't find a way to convert from an octave_value to a float or double.
Is there
| a way to do this?
|

To convert an octave_value to double, use the 'double_value()' method:
octave_value x = whatever; double y = x.double_value();

- --
Geraint Bevan
http://www.mech.gla.ac.uk/~gbevan

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