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Design of Multi Agent Systems

Inputting A Graph

Graphs can be read from txt files with the following content:

Number of nodes and number of edges
4 3
1 2
1 3
2 3
3 0
Node locations
20 0
10 20
-10 20
0 0

Number of nodes and number of edges should indicate how many vertices and edges a graph has, note that bidirectional edges should be added as two different edges. Nodes are numbered from 0 to numberOfNodes - 1. Sources indicate places where cars can enter the simulation, sinks indicate where they leave them, a vertex can be both a source and a sink. Node locations take the center of the screen as the origin, locations may use floats. For each node a location should be given.

Batch processing

In the TrafficDemo directory, run java -cp target/TrafficDemo-1.0-SNAPSHOT-jar-with-dependencies.jar nl.rug.dmas.trafficdemo.Batch ./input/graaf2.txt ./input/experiment.txt after building the project in Netbeans.

The experiment file looks like this:

time = 150
iterations = 3

ratioAutonomousCars = 0.0:0.1:1.0

carWidth = 1.47-2.55
carLength = 2.540-6.0
viewLength = 4.00-12.00
actPeriod = 100

time is the number of seconds the simulations simulate, and iterations the number of repititions of the same experiment. Both these variables are required. All other variables are optional. The names are the names of the properties of the Scenario class. Only Parameter arguments can be configured through this file.

In the variable section you can name all the variables (using the Parameter range syntax start:step:stop) to name the parameters which are changed. For each possible value of these parameters, iterations number of simulations are run. All other parameters are taken from the fixed section.

If you name multiple parameters in the variable section, it only varies one of them at a time. So if there are two variables, it will first vary the first and take the value for the second from the fixed section. Then it will vary the second and take the value for the first from the fixed section. So it does not take all possible combinations for both variables into account.


DMAS Project: comparison between autonomous and simulated human drivers



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