Ptolemy II Tool Evaluation Release

Per the request of the automotive OEP team, we are making available an evaluation release of Ptolemy II together with worked out examples of both the vehicle-to-vehicle (V2V) model (as a hybrid system) and the engine throttle control (ETC) (as a mixed continuous/Giotto/SDF model). The Ptolemy II release is a preliminary version of the 2.0 release. It is made available via an experimental web launching tool, which makes installation particularly simple. The V2V and ETC models are posted on the web rather than bundled with the software distribution, in part to illustrate the ease with which Ptolemy II models can be shared via the web. The steps are as follows:

  1. Install or update Ptolemy II Web Start Edition. This will result in Ptolemy II starting on your computer. You should see the welcome screen, which includes several useful links (such as the "quick tour"). If you have already installed Ptolemy II 2.0, Web Start Edition, then you can start Ptolemy II from your Start menu, and proceed to the next step.

  2. You can obtain the Ptolemy II tutorial, available in PDF and HTML and experiment with constructing your own models.

  3. You can access the ETC model by opening the following URL using the Open URL command in the File menu:
    Hint: under Windows, highlight the above URL, right click and select copy and then go to the Ptolemy window, select File->Open URL, highlight the text with the mouse and then use Control-V to paste the contents of the clipboard into the Open URL text entry.
    To run the model, select View -> Run.
    To explore the model, right click on icons with a red border, and select Look inside.

  4. The V2V model can be accessed with the following URL:
    Note that opening this model will cause a warning window to pop up that state that Ptolemy is reading MoML from the Ptolemy website. This is because the V2V model uses a composite actor that is being searched for on the Ptolemy website.
    Hit OK to proceed.
    To run the model, select View -> Run. Note that this model, developed by the U. Penn. Mobies project, is a hybrid system.
    To explore the model, right click on icons with a red border, and select Look inside.