C++ (Cpp) QUATSET示例

示例#1

int ED_view3d_lock(RegionView3D *rv3d)
{
	switch(rv3d->view) {
	case RV3D_VIEW_BOTTOM :
		QUATSET(rv3d->viewquat,0.0, -1.0, 0.0, 0.0);
		break;

	case RV3D_VIEW_BACK:
		QUATSET(rv3d->viewquat,0.0, 0.0, (float)-cos(M_PI/4.0), (float)-cos(M_PI/4.0));
		break;

	case RV3D_VIEW_LEFT:
		QUATSET(rv3d->viewquat,0.5, -0.5, 0.5, 0.5);
		break;

	case RV3D_VIEW_TOP:
		QUATSET(rv3d->viewquat,1.0, 0.0, 0.0, 0.0);
		break;

	case RV3D_VIEW_FRONT:
		QUATSET(rv3d->viewquat,(float)cos(M_PI/4.0), (float)-sin(M_PI/4.0), 0.0, 0.0);
		break;

	case RV3D_VIEW_RIGHT:
		QUATSET(rv3d->viewquat, 0.5, -0.5, -0.5, -0.5);
		break;
	default:
		return FALSE;
	}

	return TRUE;
}

示例#2

bool ED_view3d_lock(RegionView3D *rv3d)
{
	switch (rv3d->view) {
		case RV3D_VIEW_BOTTOM:
			QUATSET(rv3d->viewquat, 0.0, -1.0, 0.0, 0.0);
			break;

		case RV3D_VIEW_BACK:
			QUATSET(rv3d->viewquat, 0.0, 0.0, -M_SQRT1_2, -M_SQRT1_2);
			break;

		case RV3D_VIEW_LEFT:
			QUATSET(rv3d->viewquat, 0.5, -0.5, 0.5, 0.5);
			break;

		case RV3D_VIEW_TOP:
			QUATSET(rv3d->viewquat, 1.0, 0.0, 0.0, 0.0);
			break;

		case RV3D_VIEW_FRONT:
			QUATSET(rv3d->viewquat, M_SQRT1_2, -M_SQRT1_2, 0.0, 0.0);
			break;

		case RV3D_VIEW_RIGHT:
			QUATSET(rv3d->viewquat, 0.5, -0.5, -0.5, -0.5);
			break;
		default:
			return false;
	}

	return true;
}