mav_navigationMouseDefaultParams(3)

NAME
mav_navigationMouseDefaultParams - Provides control of the default implementation of mouse navigation

LEVEL
Maverik Level 1

SYNTAX
void mav_navigationMouseDefaultParams(MAV_window *w, int but, MAV_navigatorFn x, float xls, float xas, MAV_navigatorFn y, float yls, float yas);

DESCRIPTION
Mouse navigation is controlled on a per-window (w) and per-button (but) basis and consists of two sets of three values, the first for horizontal mouse movements, the second for vertical. The three arguments in each set are:

For example, the following defines navigation triggered by the left mouse button. Horizontal movements of the mouse yaws the view; and vertical movement moves the view forward:

<cod>
  mav_navigationMouseDefaultParams(mav_win_all, MAV_LEFT_BUTTON,
                        mav_navigateYaw, 0.02, -0.001,
                        mav_navigateForwards, 0.02, 0.001); </cod>

A vertical mouse movement of 100 pixels equates to the eyepoint moving 2 (100x0.02) application units forwards.

Note that the angular scaling factor is negative for mav_navigateYaw. This is because a right-handed coordinate system is assumed which implies that a positive yaw will rotate the view to the left. This is the opposite to what is required, and so a negative scaling factor is used to compensate.

SEE ALSO
MAV_navigatorFn, default navigator functions