Audrey St. John

2D Bar-and-Joint Motion Simulation


Download the jar to run on your own machine.

  • To load a predefined graph, select from Graphs menu
  • To create a graph
    • Go to the Create graph tab
    • Add vertices by right clicking and selecting "Insert"
    • Add edges by clicking first vertex (hover over center until you see a hand cursor, then click), then pull to second vertex
    • Adjust radius by selecting vertex and pulling bounding box
    • When finished, click "Set graph" button at the bottom
    • Return to Motion tab to simulate motion
  • Use the right button to select 2 fixed vertices (they will be colored red).
  • To zoom in/out in Motion mode, use Ctrl +/-
  • To move screen in Motion mode, press Space and move with mouse