Layout Change in Experimenter

Hello everybody,

I´m trying to change a model layout in the experimenter but I´m having some trouble with it. My first attempt was to set the layout node at MAIN:/project/model/Tools/Layouts as an experimenter variable, but this didn´t. work. Then, I realized, by exploring the tree structure of the Model Layouts windows that there´s a function called "Update" that is called every time the layout is changed. This function replaces the spatial node of every object in the model with the corresponding layout node.

I executed the "Update" function from a script using:

treenode ModLayouts = node("/active/palettewindows526092976/tabcontrol/Model Layouts", views());
nodefunction(node(">Update", ModLayouts), num_layout);

Where num_layout is the rank of the Layout (in my case, 1 or 2). This works perfectly! I´m able to change the layout from script with no problem. However, when I try to use this same code in one of the experimenter triggers (on start of replication) nothing seems to happen.

Start of Replication

/**Custom Code*/
double replication = parval(1);
double scenario = parval(2);

if(replication == 1)
{
treenode ModLayouts = node("/active/palettewindows526092976/tabcontrol/Model Layouts", views());
nodefunction(node(">Update", ModLayouts), scenario);
}

The body of the if statements is exactly the same one I run succesfully from the script window, but now this doesn´t work.

Does anybody know how can I set the layout configuration of my model as an experimenter variable, where each scenario has it´s own layout?. Is there an easier approach than what I´m trying to do?

Thanks a lot!

If you're using version 6, experiments are run on sub-processes. In those sub-processes, the view tree is not loaded, so there is no valid path anywhere in views. You'll have to copy the code out of the update script and execute it manually.

Originally Posted by Anthony Johnson

If you're using version 6, experiments are run on sub-processes. In those sub-processes, the view tree is not loaded, so there is no valid path anywhere in views. You'll have to copy the code out of the update script and execute it manually.

Thank you Anthony! I just did what you said and made a user command called "changelayout(layout)" which takes the number of layout and runs the code in the update node of the views trigger. The code of the changelayout is:

changelayout(layout):

int layoutnr = parval(1);

treenode layouts = node("/Tools/Layouts", model());
setnodenum(layouts, layoutnr);

string layoutname = getname(rank(layouts, layoutnr));

iterate(2, content(model()), 1)
{
treenode obj = rank(model(), count);
treenode objlayout = node(concat(">Layouts/", layoutname), obj);
if(objectexists(objlayout))
{
forobjectlayerunder(objlayout)
{
setnodenum(rank(node(">spatial", obj), getrank(a)), getnodenum(a));
}
}
forobjecttreeunder(rank(model(), count))
{
treenode obj = a;
treenode objlayout = node(concat(">Layouts/", layoutname), a);
if(objectexists(objlayout))
{
forobjectlayerunder(objlayout)
{
setnodenum(rank(node(">spatial", obj), getrank(a)), getnodenum(a));
}
}
}
}

repaintall();

It was just a matter of copying and pasting this code in a user command and then using it in the replication trigger of the experimenter.

regards,

Esteban.

Hi,
I am collecting statistics of each layout with the above approach .When i run the experiment I am getting the same result for each scenario.Am I missing any thing or anything that has changed in version 7? Please help

You're still referencing the views() in your model and using the scripts from the first post which won't work.

You need to use the function "changelayout" as described, and add 'num layoutnr' to the parameters of the usercommand.

Check it works by running a test in the script window.

changelayout(1);

Then in the experimenter, if the scenario corresponds to layout you can try adding code to the replication start:

changelayout(scenario);

Don't test if replication is 1. The experiment threads can start at any replication.

Thanks Jason!Now its working.

With the above approach of collecting statistics of each layout.When I connect two network nodes(ex NN1 to NN2) in one model layout1.And again i want to give another connection from same network node in other layout(ex NN1 to NN3). And when I reverted back to layout1 the connection no longer exists(NN1 to NN2) but only (NN1 to NN3).I want network nodes to be connected in each model layout as they were.I have network nodes connected to the objects in the Userlibrary.

I could do in the experimenter with changing locations of objects but it would become really cumbersome when you have a large layout.Does anyone experienced this kind of problem before?

PS.Give unique names for each network nodes in the model layouts.