The following moves the view located at (0, 0, 0) and directed toward (0, 0, -1)
(toward the inside of the screen) to (50, 50, 50), then sets that view
as the base view after reorienting the viewline toward (0, 0, 0).
#define VIEW_PX 0.f
#define VIEW_PY 0.f
#define VIEW_PZ 0.f
#define VIEW_VX 0.f
#define VIEW_VY 0.f
#define VIEW_VZ -1.f
#define VIEW_ROLL 0
NJS_VIEW v;
v.px = VIEW_PX;
v.py = VIEW_PY;
v.pz = VIEW_PZ;
v.vx = VIEW_VX;
v.vy = VIEW_VY;
v.vz = VIEW_VZ;
v.roll = NJM_DEG_ANG(VIEW_ROLL);
njTranslateViewRelative(50.f, 50.f, 50.f);
njLookAtView(&v, 0.f, 0.f, 0.f);
njSetBaseView(&v);
njSetView( &v );
njClearMatrix();