Navigation Techniques

VRweb

Jump to: View Control, Navigation Options, Navigation Settings, Spaceball Control, Browser Control.


Navigation Modes

VRweb offers 5 modes for navigation in scenes, each of which is described on its own page. The mode can be selected by pressing the appropriate button in the toolbar, via the Navigate menu, or by using shortcuts.


View Control


Navigation Options


Navigation Settings

This dialog allows setting of various navigation constants. Use the sliders or field editors to change the settings. Press the OK button to accept the new values. Use the Reset button to return to the default settings, and the Cancel button to restore the previously set values. The Help button brings you to this help page.


Spaceball Control

Note: Settings made in this dialog are only effective when you have a spaceball connected to your machine. Spaceball support is currently compiled into the SGI binary and available in the source code. If you have a spaceball connected to another machine, please compile the source code yourself or contact the VRweb team.

Spaceball buttons 1 and 2 toggle Translation and Rotation. Button 3 toggles the Single Axis Filter, performing either a translation or rotation along the dominant axis (recommended for beginners). The spaceball device will beep on turning on any of these options. Note that the buttons have no effect when no scene is currently loaded.

Button 4 switches between the flip and walk metaphor. The first one manipulates the object, the second one controls the viewpoint in the scene.

Buttons 5 to 7 control the sensitivity, which is also displayed in the dialog. Button 5 halfs the sensitivity, button 6 doubles it, and button 7 resets it to the default value.

Button 8 rezeros the spaceball. You can also achieve constant motion by twisting the spaceball, pressing button 8 and then releasing it. Press button 8 again to stop.

Finally, the push button P on the back side of the ball resets the view.


Browser Control


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