Flight Controls

Partiview has four flight modes. Each has two kinds of flight (forward/backward, orbit, etc.), one for each mouse button.

Flight Scale

Moving forward or backward presents difficulties when you are traversing data sets that scale large distances. If your speed were constant everywhere, it would take forever to get to the edge of a large data set. For this reason, Partiview has two flight scales in the forward and backward direction, linear and logarithmic, described in the table below.

**Table 3.1:** Flight scales in Partiview. The distance, d, is measured from the Point of Interest, which, by default, is the Sun.
Scale	If d = 0...	If d =∞...	Description
Linear	v =constant	v =constant	Constant scale everywhere; useful for exploring an object near the Point of Interest.
Logarithmic	v = 0	v =∞	The scale increases radially away from the Point of Interest, resulting in higher speeds as your distance increases from the Point of Interest.

Flight Modes

Partiview has four flight modes, listed in Table 3.2. With each mode comes two types of flight. These are discussed in Table 3.3.

**Table 3.2:** Flight Control with the Mouse in Partiview. Shortcut keys are shown in square brackets and are used in the Graphics Window. Macintosh users should press [Option] + mouse button to emulate right mouse button functionality (or use a two-button mouse).
	Button
Flight Mode	Left (1)	Middle (2)	Right (3)	Scale
Fly `[f]`	pan	select `[p]`	forward	linear
Orbit `[o]`	orbit	select `[p]`	forward	log
Rotate `[r]`	orbit	select `[p]`	rotate	not applicable
Translate `[t]`	translate	select `[p]`	forward	linear

**Table 3.3:** Motion Control in Partiview
Motion	Description
pan	Shift your view without moving from your current position, equivalent to looking around by moving your head but not your feet.
forward, reverse	With eyes forward (looking at the center of the display), moving toward or away (backward) along your line of sight.
orbit	Orbit the Point of Interest. If the Point of Interest is in view, this is a simple orbit around that point. If the Point of Interest is not in the display but off to the side, then you will orbit the Point of Interest but look forward, akin to looking away from the center of a carousel as you “orbit” its center.
rotate	Rotate the view about the Point of Interest. When the Point of Interest is in view, this produces a twisting motion parallel to your screen. If the Point of Interest is out of view, then the data will appear to approach from an angle, similar to the carousel analogy for orbit (above).
translate	Move in a direction parallel to the display, thereby moving the data across the display in the direction of mouse motion. This is equivalent to moving your feet sideways while keeping your eyes looking straight ahead.

**Table 3.4:** Additional Mouse Functionality in Partiview
Function	Mouse Button	Keyboard Shortcut	Description
select	middle	`p`	With the mouse on an object, click the middle mouse button to produce a report on that object in the Console Window. If you don't have a middle mouse button, place the cursor on an object and use the `p` key.
Changing the Point of Interest	middle-`[Shift]`	`[Shift]`-`p`	Select a data point near the mouse and move the Point of Interest to that location.

Changing the Flight Mode

Change the flight mode by selecting a mode from the Flight Mode Menu or by typing one of the shortcut keys (f, o, r, or t) in the Graphics Window. The active flight mode appears below the Flight Mode Menu.

Digital Universe Atlas

Partiview User's Guide

Flight Controls

Flight Controls

Flight Scale

Flight Modes

Changing the Flight Mode