Visual range assessment is an important part of the ergonomics analysis.In order to get achieve visual effects for the visual range assessment

we construct a translucent model of the human eyes' visible range and bind it to the bones of the ergonomic virtual human.Then

a real-time dynamic visual range evaluation is achieved by using real-time blend rendering technology.As an example

the gantry CNC machining center design model is taken to demonstrate the effectiveness of the method.It shows that the vivid visualization analysis not only makes the ergonomics analysis simple

fast

and visible

but also avoids many manual operations

improving the speed of the analysis

and reducing the human errors.The method can be applied in the practical engineering directly and it can support the visibility analysis of various types of layout design.