could setParameter work with struct

[pbpf]

Think about there are many parameters, so that it will be too bad to add them one by one. So I trying to do something like this

---

earth.R0=6378137;
earth.g0=9.8;
p.earth=earth;
p.x0=1;
solver.setParameter('p' , p);

and in varsfun

---

sh.addParameter('p');

Then in odefun
I want to get it back.

[jkoendev]

If your parameters are just constant values then it is better not to use parameters but pass the values using anonymous functions. Parameters are also optimization variables that you can set bounds on them, so they are not efficient for constants.

You can see how to do it in this example:
https://github.com/OpenOCL/OpenOCL/blob/master/%2Bocl/%2Bexamples/ballandbeam.m

All the constants are stored in a struct conf. You can pass a anonymous function to the solver like (for the system synamics):

@(dh,x,z,u,p) odefun(dh,x,z,u,p,conf);

and so odefun has conf as an input.

function odefun(dh, x, z, u, p, conf)
  ...
end

If you are unfamiliar with anonymous functions, i can try to explain in more detail!

You can also use the parameters but it will be not efficient. And you can not use struct, but add them one by one:

sh.addParameter('p')
sh.addParameter('R0')
etc.

[jkoendev]

note that we introduced the userdata field to pass constant parameters/values/structs..

See:
https://github.com/OpenOCL/OpenOCL/blob/v7.03/%2Bocl/%2Bexamples/ballandbeam.m