Plane 3D logical errors

[Aronvitki]

The distance function in the Plane3D class gives the wrong calculations. When I have a point only 10 away from the corresponding plane, it gives me this outrageously large number instead. I have the correct code for it, which is:

        if (_alignment == ALIGN_YZ_AXIS)
            return Math.abs(p.x + (d / a));
        else if (_alignment == ALIGN_XZ_AXIS)
            return Math.abs(p.y + (d / b));
        else if (_alignment == ALIGN_XY_AXIS)
            return Math.abs(p.z + (d / c));
        else
            return Math.abs(a * p.x + b * p.y + c * p.z + d) / Math.sqrt(a * a + b * b + c * c);

If you could implement this code into that distance function, it would help out others immensely.

Also, it may also help if you made the _alignment property public (get, not set).