Xsupermarket GUI Code Question

Hello.
I have a question about the code for number of registers on GUI.
Below is the code that applies on selection

//This code turns the registers on or off

treenode registerelector = c;
treenode objrank = get(itemcurrent(registerelector));
applylinks(ownerview(c), 1);

treenode MainQ = node("MAIN:/1/3/197");
treenode Register1 = node("MAIN:/1/3/288/8");
treenode Register2 = node("MAIN:/1/3/289/8");
treenode Register3 = node("MAIN:/1/3/290/8");
treenode Register4 = node("MAIN:/1/3/291/8");
treenode Register5 = node("MAIN:/1/3/292/8");

treenode Stand1 = node("MAIN:/1/3/288/7");
treenode Stand2 = node("MAIN:/1/3/289/7");
treenode Stand3 = node("MAIN:/1/3/290/7");
treenode Stand4 = node("MAIN:/1/3/291/7");
treenode Stand5 = node("MAIN:/1/3/292/7");

treenode Cachier1 = node("MAIN:/1/3/288/5");
treenode Cachier2 = node("MAIN:/1/3/289/5");
treenode Cachier3 = node("MAIN:/1/3/290/5");
treenode Cachier4 = node("MAIN:/1/3/291/5");
treenode Cachier5 = node("MAIN:/1/3/292/5");

treenode Bagger1 = node("MAIN:/1/3/288/6");
treenode Bagger2 = node("MAIN:/1/3/289/6");
treenode Bagger3 = node("MAIN:/1/3/290/6");
treenode Bagger4 = node("MAIN:/1/3/291/6");
treenode Bagger5 = node("MAIN:/1/3/292/6");

if (objrank == 1)

{
clearcontents(connectionscenter(MainQ));
mpt(getname(MainQ));mpr();
mpt(getname(Register1));mpr();
contextdragconnection(MainQ,Register1,"S");


Here, how can I know
treenode MainQ should be node("MAIN:/1/3/197") and
treenode Register1 should be node("MAIN:/1/3/288/8")?
How can I find this node("MAIN:/1/3/197") for appropriate object?

Also, in this code, can anyone explains that why we need
mpt(getname(MainQ));mpr();
mpt(getname(Register1));mpr();
these codes?

Thanks a lot.

Hi Chris,

The easiest way to find the path of an object is to set it as SO():

Right Click > Edit > Designate This Node (SO)


Then open up a script window and use the command:

nodetopath(so(),0)

Providing you leave the semicolon off the end of the statement, the path to the object will appear in the String display on the script window. you could also print the path to the output console using:

pt(nodetopath(so(),0));

If you pass a 1 instead of a 0 as the second parameter then you will get the path displayed as names rather than numbers. Either of these can be passed into the node command.

As for the mpt() and mpr() commands, these work the same as pt() and pr(), but print to the system console rather than the output console.

Chris,

Just a quick intro to paths:

First, paths are a lot like paths in windows explorer but with a few minor differences. The main convenience difference is that paths can either use the name of a node or the number equal to the rank of a node. The biggest difference is the use of "/" and ">" instead of "\". In the tree you will notice that there are two ways to go into an object/node; one is the "+" sign next to the node and the other is the ">" that appears after you click on the node. These are important because they designate the symbol you use when you specify the path ("/" for the "+" method and ">" for the ">" method).

Second, you will notice that all of your paths start with "MAIN:/1/3" which is how you get to the model. It is the equivalent of "MAIN:/project/model". Typically I like to keep things a little easier for myself and use "model()" as the starting object so for example:

treenode Register1 = node("MAIN:/1/3/288/8");

would be:
treenode Register1 = node("/288/8", model());

I know you didn't write this yourself and that my way may very well be slower, but it is easier for me to read and understand because I don't do GUI's enough to keep fluent with the code.

Answers to your questions:
1. How can I find this node("MAIN:/1/3/197") for appropriate object?
-It is pointing to the 197th object in the model. placing the following code in a script window will get you the name:

getname(node("/197", model());
or
getname(rank(model(), 197));

2. What are the mpr(); mpt(); commands?
-They are used for debugging and act just like the pr(); pt(); pf(); and pd(); commands except that they print to the system console instead of the output console (pr for new line, pt for text, pf for a double, and pd for and integer). You can find more out by looking the commands up in the help.

Good Luck,
Brandon

You can also right click on the model tree view and select View->Show Node Ranks.