Programming With QuickTime VR

Nudge Directions

The direction parameter to the function QTVRNudge specifies the direction in which to nudge the current view. You can use these constants to specify a nudge direction:



 
typedef enum QTVRNudgeControl {

    kQTVRRight                                      = 0,

    kQTVRUpRight                                    = 45,

    kQTVRUp                                         = 90,

    kQTVRUpLeft                                     = 135,

    kQTVRLeft                                       = 180,

    kQTVRDownLeft                                   = 225,

    kQTVRDown                                       = 270,

    kQTVRDownRight                                  = 315

} QTVRNudgeControl;

The actual direction of the nudge is affected by the current control settings. For example, when the kQTVRReverseVControl control setting is enabled, the QTVRNudge function nudges up when you pass the value kQTVRDown and down when you pass the value kQTVRUp .

Constant descriptions

kQTVRRight: Nudge the current view to the right.
kQTVRUpRight: Nudge the current view up and to the right.
kQTVRUp: Nudge the current view up.
kQTVRUpLeft: Nudge the current view up and to the left.
kQTVRLeft: Nudge the current view to the left.
kQTVRDownLeft: Nudge the current view down and to the left.
kQTVRDown: Nudge the current view down.
kQTVRDownRight: Nudge the current view down and to the right.