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Arnaud Grignard edited this page May 7, 2022 · 40 revisions

Displays

GAMA allows modelers to define several kinds of displays in a GUI experiment:

  • java 2D displays
  • OpenGL displays

These 2 kinds of display allow the modeler to display the same objects (agents, charts, texts ...). The OpenGL display offers extended features in particular in terms of 3D visualization. The OpenGL display offers also better performance when zooming in and out.

Table of contents

Classical displays (java2D)

The classical displays displaying any kind of content can be manipulated via the mouse (if no mouse event has been defined):

  • the mouse left press and move allows to move the camera (in 2D),
  • the mouse right click opens a context menu allowing the modeler to inspect displayed agents,
  • the wheel allows the modeler to zoom in or out.

Toolbar on top of any Java2D display.

Each display provides several buttons to manipulate the display (from left to right):

  • Pause or resume the current view: when pressed, the display will not be displayed anymore while the simulation is still running,
  • Synchronize, when pressed, the display and the execution of the model are synchronized. Most of the time, this will reduce the speed of the simulation.
  • Zoom in,
  • Zoom to fit view,
  • Zoom out,
  • Take a snapshot: take a snapshot saved as a png image in the snapshots folder of the model folder.
  • Toggle antialias: Antialising produces smoother outputs, but comes with a cost in terms of speed and memory used.
  • Toggle fullscreen ESC: when pressed, the current view will be displayed in fullscreen. To exit this mode, press ESC key.
  • Browse through all displayed agents: when pressed a browse view will be open. Only the species displayed can be browsed.

More commands in the contextual menu of the display.

In addition to these commands, the contextual menu on the display provides three more commands (in "Presentation"):

  • Toggle overlay: display/hide a semi-transparent toolbar on the bottom of the display, showing the coordinates of the mouse, the zoom, the number of fps (frame per second) of the simulation, and a scale (taking into account the zoom level).
  • Toggle toolbar: display/hide the toolbar on the top of the display.
  • Background: Change the background color.

When the View is displayed in fullscreen mode, the toolbar is now located in the bottom of the View and contain in addition to the previously detailed toolbar, the toggle side-control, and overlay controls and controls of the experiment (run, pause, step...).

Toolbar in a fullscreen mode display.

OpenGL displays

The OpenGL displays displaying any kind of content can be manipulated via the mouse (if no mouse event has been defined):

  • same behaviors with left-click, right-click and wheel than in the Java2D displays.
  • command pressed (on Mac OS) or Ctrl (on Windows and Linux) + Left-Click pressed + mouse move: it controls the camera and modify its location/target/orientation.

Any OpenGL display has the same menu and buttons as the classical Java2D displays. Nevertheless, the sidebar provides more options to manage camera and other options related to OpenGL displays management.

Opengl display.

  • Keystone: the keystone allows to modify the location of the 4 corner points of the environment bounding box. It can be use to project a simulation on a physical model as the projector can introduce some image distortions. Press '''k''' to enter in keystone mode, ones the keystone is done repress kto copy the facet in the clipboard. You can now paste your keystone value as a facet in the display.

Camera commands

Key Function
Double Click Zoom Fit
+ Zoom In
- Zoom Out
Up Vertical movement to the top
Down Vertical movement to the bottom
Left Horizontal movement to the left
Right Horizontal movement to the right
CTRL or CMD + Up Rotate the model up (decrease the phi angle of the spherical coordinates)
CTRL or CMD + Down Rotate the model down (increase the phi angle of the spherical coordinates)
CTRL or CMD + Left Rotate the model left (increase the theta angle of the spherical coordinates)
CTRL or CMD + Right Rotate the model right (decrease the theta angle of the spherical coordinates)
SPACE Reset the pivot to the center of the envelope
KEYPAD 2,4,6,8 Quick rotation (increase/decrease phi/theta by 30°)
CTRL or CMD + LEFT_MOUSE Makes the camera rotate around the model
ALT+LEFT_MOUSE Begins Agent Selection using an ROI (Region of Interest)
SHIFT+LEFT_MOUSE Draws an ROI on the display, allowing to maintain it across frames
SCROLL Zoom-in/out to the current target (center of the sphere)
WHEEL CLICK Reset the pivot to the center of the envelope

Home

  1. What's new (Changelog)

Platform

  1. Installation and Launching
    1. Installation
    2. Launching GAMA
    3. Updating GAMA
    4. Installing Plugins
  2. Workspace, Projects and Models
    1. Navigating in the Workspace
    2. Changing Workspace
    3. Importing Models
  3. Editing Models
    1. GAML Editor (Generalities)
    2. GAML Editor Tools
    3. Validation of Models
  4. Running Experiments
    1. Launching Experiments
    2. Experiments User interface
    3. Controls of experiments
    4. Parameters view
    5. Inspectors and monitors
    6. Displays
    7. Batch Specific UI
    8. Errors View
  5. Running Headless
    1. Headless Batch
    2. Headless Server
    3. Headless Legacy
  6. Preferences
  7. Troubleshooting

Learn GAML step by step

  1. Introduction
    1. Start with GAML
    2. Organization of a Model
    3. Basic programming concepts in GAML
  2. Manipulate basic Species
  3. Global Species
    1. Regular Species
    2. Defining Actions and Behaviors
    3. Interaction between Agents
    4. Attaching Skills
    5. Inheritance
  4. Defining Advanced Species
    1. Grid Species
    2. Graph Species
    3. Mirror Species
    4. Multi-Level Architecture
  5. Defining GUI Experiment
    1. Defining Parameters
    2. Defining Displays Generalities
    3. Defining 3D Displays
    4. Defining Charts
    5. Defining Monitors and Inspectors
    6. Defining Export files
    7. Defining User Interaction
  6. Exploring Models
    1. Run Several Simulations
    2. Batch Experiments
    3. Exploration Methods
  7. Optimizing Model Section
    1. Runtime Concepts
    2. Optimizing Models
  8. Multi-Paradigm Modeling
    1. Control Architecture
    2. Defining Differential Equations

Recipes

  1. Manipulate OSM Data
  2. Diffusion
  3. Using Database
  4. Using FIPA ACL
  5. Using BDI with BEN
  6. Using Driving Skill
  7. Manipulate dates
  8. Manipulate lights
  9. Using comodel
  10. Save and restore Simulations
  11. Using network
  12. Headless mode
  13. Using Headless
  14. Writing Unit Tests
  15. Ensure model's reproducibility
  16. Going further with extensions
    1. Calling R
    2. Using Graphical Editor
    3. Using Git from GAMA

GAML References

  1. Built-in Species
  2. Built-in Skills
  3. Built-in Architecture
  4. Statements
  5. Data Type
  6. File Type
  7. Expressions
    1. Literals
    2. Units and Constants
    3. Pseudo Variables
    4. Variables And Attributes
    5. Operators [A-A]
    6. Operators [B-C]
    7. Operators [D-H]
    8. Operators [I-M]
    9. Operators [N-R]
    10. Operators [S-Z]
  8. Exhaustive list of GAMA Keywords

Developing GAMA

  1. Installing the GIT version
  2. Developing Extensions
    1. Developing Plugins
    2. Developing Skills
    3. Developing Statements
    4. Developing Operators
    5. Developing Types
    6. Developing Species
    7. Developing Control Architectures
    8. Index of annotations
  3. Introduction to GAMA Java API
    1. Architecture of GAMA
    2. IScope
  4. Using GAMA flags
  5. Creating a release of GAMA
  6. Documentation generation

Tutorials

  1. Predator Prey
  2. Road Traffic
  3. 3D Tutorial
  4. Incremental Model
  5. Luneray's flu
  6. BDI Agents

Community

  1. Team
  2. Projects using GAMA
  3. Scientific References
  4. Training Sessions

Versions of GAMA

Resources

  1. Videos
  2. Conferences
  3. Code Examples
  4. Pedagogical materials
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