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3.2.2 Using the Mouse

You can move the viewpoint using the mouse.

When the viewpoint is in space, a celestial body will always be at the center of the display.
You can rotate the viewpoint by dragging. Also, by dragging while pressing the Control key, you can change the distance between the viewpoint and observed celestial body.

<Mouse Operations When Viewpoint is in Space>

Rotate viewpoint by Drag (Mac)
Left Click-hold + Drag(Win)

Change distance between viewpoint and observed celestial body by Drag up/down while pressing Control.(Win:Right Click-hold + Drag)

<Mouse Operations When Viewpoint is from Ground>

Rotate viewpoint by Drag (Mac)
Left Drag (Win)

Zoozm In or Out to or from center of screen by Control + Drag up/down (Mac)
Right Click-hold + Drag (Win)