Ray Tracing

now have a later date than the date that was stored. If this occurs, the following warning message is displayed:

FIGURE 5.14 - Warning of Source File Modification

Please note that this check is not performed before each raytrace. If the TracePro oml file remains open, the Source File can be modified, and the “modified” rays can be traced without warning.

Orienting and Selecting Sources

You can select, move, and rotate sources. Multi-select gives you the option to select multiple surface, grid, and file sources to accomplish actions for the selected sources. The ability to move and rotate grid and file sources through the Source Tree tab interface, especially in light of the multi-select source capability, gives you the ability to be more efficient and less prone to user-input error during development of your system An example to illustrate the utility is provided in “Example of Orienting and Selecting Sources” on page 9.41.

Multi-Selecting Sources

You may now select multiple sources, file, grid, and surface, by left clicking a given source while holding the Ctrl or Shift key. The following actions occur while holding down one of the keys:

•Shift: Selects a list of sources, up or down, from the currently selected one to the one on which you have clicked

•Ctrl: Selects the clicked source adding it to a list of sources. The final selected list does not need to be contiguous.

You may use the Shift and Ctrl keys in conjunction to each other to select contiguous and distinct sources. Note that the Shift and Ctrl key left-click operations are standard Windows operations. These actions also work in many other TracePro windows, including the Model Tree tab.

By right clicking on one of the selected sources, you get a pop-up menu with many options to Move or Rotate Source for Surfaces Sources (Figure 5.15).

5.26	TracePro 5.0 User’s Manual

Defining Sources

FIGURE 5.15 - Right-click pop-up menu in Source Tree

Move and Rotate Dialogs

With one or more Grid or File Sources selected, you may Move Source or Rotate Source. To move or rotate a Surface Source you must use the Move or Rotate option in the Model Tree for moving or rotating the object that contains the Surface Source. Figure 5.16 shows the dialog for Move Source, while Figure 5.17 shows the dialog for Rotate Source.

FIGURE 5.16 - Move Source dialog.

TracePro 5.0 User’s Manual

5.27