Build Decision Point with Code

Question

question

Rohan V3 asked Sep 03 2021 at 8:14 PM Matthew Gillespie commented Sep 07 2021 at 9:47 PM

Build Decision Point with Code

MDR is the library which has 3 DPs that I am using to build the model. The conveyor has an on reset code which deletes the DPs and creates new ones. If you start a new model and run the code the first time it works. After that, the model keeps crashing everytime I hit reset.

Software Version:

FlexSim 21.0.4

conveyor code conveyorsystem decision point flexsim 21.0.4

mdr.fsl (2.6 KiB)

test-model-1.fsm (41.1 KiB)

· 6

Matthew Gillespie ♦♦ commented · Sep 04 2021 at 10:56 PM

@Rohan V3 What do you do after you start a new model? I added the conveyor to the user library and then dragged out the conveyor in a new model, and reset the labels and it seems to work fine. I'm not seeing any crashing issues. Can you tell me the exact steps you're doing?

0 ·

Jason Lightfoot ♦♦ Matthew Gillespie ♦♦ commented · Sep 06 2021 at 9:57 AM

And it works in you test model too in 21.0.8. Setting the 'Built' label to zero each time to force the rebuild.

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Rohan V3 Jason Lightfoot ♦♦ commented · Sep 07 2021 at 4:02 PM

Interesting.. @Matthew Gillespie Did you try changing the conveyor length? It crashes when I change the length, increase or decrease it. Change the conveyor length label on the conveyor. If it still works for you, can you attach your model and I can see if that file works.

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Answer 1 · 2021-09-07T20:05:01Z

Matthew Gillespie answered Sep 07 2021 at 8:05 PM Matthew Gillespie commented Sep 07 2021 at 9:47 PM

I cleaned up your script to use better array access and methods and I'm no longer seeing the crashing issue. Array.push() is better than making an array of a single thing and appending that array.

Object current = ownerobject(c);
Array dps = current.DP;
 
// Delete Existing DPs
while (dps.length)
    dps.pop().destroy();
 
// Set Conveyor Length
current.size.x = current.Conv_Length;
function_s(current,"finalizeSpatialChanges");
 
//Create Start DP
treenode startdp = createinstance(maintree().find("project/userlibrary/MDR/Start DP"), current);
setloc(startdp, current.zone_Length - 7.875,0,0);
dps.push(startdp);
function_s(startdp,"finalizeSpatialChanges");
 
//Create Intermediate DP
int dpnum = (current.Conv_Length/current.zone_Length) - 2;
 
for (int i = 1;i<=dpnum;i++){
    treenode mdrdp = createinstance(maintree().find("project/userlibrary/MDR/MDR DP"), current);
    double dist_along_conv;
    dist_along_conv = (i+1)*current.zone_Length - 7.875;
    setloc(mdrdp, dist_along_conv,0,0);
    dps.push(mdrdp);        
    function_s(mdrdp,"finalizeSpatialChanges");
 
    //function_s(current,"finalizeSpatialChanges");
}
 
// Create END DP
treenode Enddp = createinstance(maintree().find("project/userlibrary/MDR/End DP"), current);
setloc(Enddp, current.Conv_Length - 7.875,0,0);
dps.push(Enddp);
function_s(Enddp,"finalizeSpatialChanges");

· 2

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