            |
 E(x,y+β)                                     L(x+w,y+β)
        
        
 F(x,y+(h-β))                               K(x+w,y+(h-β))
 |                                                |
 |                                                |
 |                                                |
 G(x,y+h)----H(x+β,y+h)         I(x+(w-β),y+h)----J(x+w,y+h)
 </pre></div>
<dl><dt><span class="strong">参数:</span></dt><dd><code>g</code> - </dd><dd><code>x</code> - 距形区的X坐标</dd><dd><co