Page 498 - ExtendSim User Guide
P. 498

Tutorial I
3D animation modes
Closing the window
The E3D window can be closed:
• By clicking the close box in its title bar
• Withtheesc(escape)key
• ByselectingClosefromthemenuthatappearswhenyouclicktheExtendSimiconinthe
E3D window’s title bar (Windows only)
All three options leave the model window(s) open and the simulation running (if applicable). The E3D window automatically closes whenever you exit ExtendSim.
☞ The E3D window does not close when you close the associated model; it stays open so you can use the leftmost popup menu to select another model to animate. Likewise, the model does not close, nor does the simulation stop, when the E3D window is closed.
3D animation modes
Each model has a saved 3D animation mode which is selected in the 3D Animation tab of the Run > Simulation Setup dialog and displayed in the E3D window’s title bar. The selected mode controls aspects of the interaction between the ExtendSim application, the E3D window, and the ModL block code.
Mode descriptions
There are three 3D animation modes:
• QuickViewshowsadefaultrepresentationofthemovementofitemsintheE3Dwindow while the simulation is running. In this mode, only one item object moves at a time.
• ConcurrentisamorerealisticanimationthanQuickViewandshowsonlythemovement that requires simulation time. The 3D animation displays the movement of multiple item objects simultaneously and runs during the simulation run.
• BufferedissimilartoConcurrentexceptitrunsthe3Danimationafterthesimulationhas ended.
These modes are discussed in more detail on page 551.
QuickView versus Concurrent or Buffered
Each 3D animation mode has advantages and disadvantages. The QuickView mode is useful for getting an instantaneous 3D representation of a model. And with some easy changes to dia- log settings, you can quickly run a 3D animation that has a more realistic appearance than the default. However, because of the way they handle object movement, the Concurrent and Buff- ered modes are more likely what you would use for presentation.
The primary difference between the QuickView and the Concurrent or Buffered modes has to do with time and how the display of items in the E3D window relates to the real world clock.
• In the QuickView mode, the amount of real-world time it takes a 3D object to move from one point to another is not representative of the simulation time it takes that object to move. When the block code executes a move of an item from one block to another, the code will instruct the E3D window to show a representation of that move. This will be done without regard to the ratio of simulation time to real time. This means that the length of time it will take that item to travel visually from one block to another will be just based on the model’s animation speed.

   496   497   498   499   500