To create an external model from an EJS simulation jar file (version 5.2 or later), run the EJS simulation and send the data directly to Tracker.Īn external model created from pasted clipboard data can be refreshed automatically by checking the Auto-Paste checkbox on the toolbar. Click the Track button, then New|External Model|Clipboard.Choose Edit|Paste Data or hit Control-V (Command-V on Mac).To create an external model from text data on the clipboard, do one of the following: Choose File|Import|Text Data File., then open the file using the file chooser.Click the Track button, then New|External Model|Text File., and open the file using the file chooser.To create an external model from a text data file, do one of the following: An EJS simulation or other modeling program able to send data directly to Tracker.Clipboard data has the advantage that it can be auto-pasted, thus enabling changes in the modeling program to be displayed instantly in Tracker.
Text data copied to the clipboard in a separate modeling program (e.g., spreadsheet).A text data file written by a separate modeling program (e.g., spreadsheet).For example, to compare data with a 100 fps video the time steps should be 0.01 s. Note: when comparing data with a video it is important that the model time steps match the video frame rate. The track enables the external model to be animated and drawn directly on a real-world video for visual comparison. An external model is a track consisting of one or more point masses with world positions determined by a data source (model data generated in a separate modeling program such as a spreadsheet, EJS or other modeling tool).
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