Issue with Displaying "Individuals" in GAMA Simulation

[adawal urbain]

Dear Team,

I am encountering a problem with the display of the "Individuals" species in my GAMA simulation. After importing my geographical data, I successfully positioned my agents in various houses, but I notice that the Individuals do not appear when I start the simulation.

Here are some excerpts from the code for your reference:

//import shapefile

file route_shape <- file("../includes/routes.shp");

file maison_shape <- file("../includes/maison.shp");

geometry shape <- envelope(route_shape);

create route from: route_shape;

create maison from: maison_shape;

create Individual number: initial_S {

state <- "S";

location <- any_location_in(one_of(maison));

display map {

species route aspect: geom;

species maison aspect: geom;

species Individual aspect: default;

}

I would appreciate any guidance or suggestions to help resolve this issue.

Thank you for your assistance.

Best regards,
[Your Name]

[Arnaud Grignard]

Dear Adawal,

We cannot run your model without the shapefile and the entire model. Would it be possible for you to share the entire project it in a .zip file or at least the full model.gaml? 

Also what did you write in the aspect default of your species Individual? What is the initial value of initial_S?

Best,

Arnaud

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[Arnaud Grignard]

Dear Adawal,

It seems that the problem is coming from your shapefile that seems to be very large in terms of distance compare to the reality. Where did you get those shapefile? Did you build it by yourself?

So actually the species people are effectively drawn but they are so small that you can see it one way to see it is to increase the size of the circle to 100 000 for instance as shown in the screenshot but it doesn't really make sense.

I would suggest to rebuild you GIS to be sure it is in the right scale

best 

Arnaud

On Fri, 12 Sept 2025 at 14:29, adawal urbain <adawa...@gmail.com> wrote:

Dear Arnaud 

 That's possible. The project is attached. Thank you

  ADAWAL

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Très cordialement, 

ADAWAL URBAIN

Chercheur en Informatique(IA, SMA)

PLEG  Info-Fonda 

Tel: 690739858/674950592

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