Re: [gama (2279)] Using cluster method

[Patrick Taillandier]

Hi,

Just to be sure, which version of GAMA are you using?

If you are using GAMA 1.6, here a simple example (simple clustering by distance, with a max distance of 20m) : 

model town

global{

       file shape_file_buildings <- file('../includes/building.shp');

       file shape_file_roads <- file('../includes/road.shp');

       int nb_people <- 100;

       geometry shape <- envelope(shape_file_roads);

       init{

               create building from: shape_file_buildings with: [type::string(read ('NATURE'))] {      

                       if type='Industrial' {

                               color <- rgb('blue');

                               datasize <- 1000;

                               recurence <-1000;

                       }

                       else if type='Residential'{

                               color <- rgb('red');

                               datasize <- 1000;

                               recurence <-1000;

                       }

               }

               list<building> residential_buildings <- building where (each.type='Residential');

               list<building>  industrial_buildings <- building where (each.type='Industrial');

               create road from: shape_file_roads ;

               create home number: nb_people {

                        living_place <- one_of(residential_buildings) ;

                        location <- any_location_in (living_place);  

               }

               list<list<building>> clusters <- simple_clustering_by_distance(building, 20);

               

               loop cluster over: clusters {

                rgb rnd_color <- rgb(rnd(255),rnd(255),rnd(255));

                ask cluster as: building {

                color <- rnd_color;

                }

               }

       }

}

species building

{

       rgb color;

       string type;

       int datasize;

       int recurence;

       aspect geometry {

               draw shape color: color;

       }

}

species road

{

       aspect geometry {

               draw shape color: rgb("black");

       }

}

species home

{

       building living_place;

       point location;

}

experiment town type: gui{

       output{

               display first_map {

                       species building aspect:geometry;

                       species road aspect:geometry;

               }

       }

}

Cheers,

Patrick

2014-04-30 8:40 GMT+02:00 Steffel Fenix <steffe...@gmail.com>:

Hello,

I'm new in GAMA and i'm trying to use the clustering algorithms, but I can't figure out how to use it I've build a simple example of a town and I want to aggregate buildings into cluster.

This is my sample code:

model town

global{

       file shape_file_buildings <- file('../includes/building.shp');

       file shape_file_roads <- file('../includes/road.shp');

       int nb_people <- 100;

       geometry shape <- envelope(shape_file_roads);

       init{

               create building from: shape_file_buildings with: [type::string(read ('NATURE'))] {      

                       if type='Industrial' {

                               color <- rgb('blue');

                               datasize <- 1000;

                               recurence <-1000;

                       }

                       else if type='Residential'{

                               color <- rgb('red');

                               datasize <- 1000;

                               recurence <-1000;

                       }

               }

               list<building> residential_buildings <- building where (each.type='Residential');

               list<building>  industrial_buildings <- building where (each.type='Industrial');

               create road from: shape_file_roads ;

               create species: home number: nb_people {

                        living_place <- one_of(residential_buildings) ;

                        location <- any_location_in (living_place);  

               }

       }

}

species building

{

       rgb color;

       string type;

       int datasize;

       int recurence;

       aspect geometry {

               draw shape color: rgb(color);

       }

}

species road

{

       aspect geometry {

               draw shape color: rgb("black");

       }

}

species home

{

       building living_place;

       point location;

}

experiment town type: gui{

       output{

               display first_map {

                       species building aspect:geometry;

                       species road aspect:geometry;

               }

       }

}

Thanks/Merci

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[Patrick Taillandier]

From myself, I just wrote it ;) . 

However, I will add an example model concerning the clustering in the model library of GAMA 1.6.1.

Patrick

2014-04-30 9:53 GMT+02:00 Steffel Fenix <steffe...@gmail.com>:

Where does this example come from?

[Patrick Taillandier]

I am sure of what you want to do, but surely.

Patrick

2014-04-30 10:34 GMT+02:00 Steffel Fenix <steffe...@gmail.com>:

Just one more thing, is it possible during the run time to add moving cars to the closest cluster and make them change when the move?