The code in Listing 3 shows a blocking call, in which the client waits until the messsage has been processed to report which grid partition was chosen to consume the message.
The global router might not recognize off-grid pins as blocking the routing track and, as a result gives you optimistic results.
全局布线器不会把非格点引脚看成是阻挡层，这样导致你有一个过度乐观的设计结果。
3
The technique of orthogonal curve-linear grid generation is used to establish the mathematical model for the open diversion channel with two embankments in river blocking.