/* initializes 3D axis parameters */
_initax3()
{
        _initax();

        setvar("_xticaut", castint(not(getxticset)));
        setvar("_yticaut", castint(not(getyticset)));
        setvar("_zticaut", castint(not(getzticset)));

        setvar("_xtc",    caststring(getxtic));
        setvar("_ytc",    caststring(getytic));
        setvar("_ztc",    caststring(getztic));
        setvar("_axs",    _gax3dstyl(caststring(getscales)));
        setvar("_pscale", not(ascale()));

        setvar("_xrot", getrotate3d(1));
        setvar("_yrot", getrotate3d(1));
        setvar("_zrot", getrotate3d(1));
}