nd_pos（np,1,3）解释。。

kaier

nd_pos（np,1,3）=1中，1表示当前坐标，3表示z方向，也就是说节点当前坐标的z=1
上面有人这么解释。但是还是不是很明白。

如果1 表示当前坐标  那2就是 非当前坐标。。？
那3表示z ，那1就表示x，2 就是y么。？

kaier

自己顶一个，求回答。。。

kaier

矮油  木有回答 = =
自己找到了。。
nd_pos( np, p, dof )  
position p (p ∈ {1,2} denotes current or reference position, respectively; dof-component, dof ∈ {1,2,3}). The reference position is the configuration for which stiffness matrices have been formed and does not change during a small-strain analysis. The current position is updated after each timestep. During a large-strain analysis, the reference position is set equal to the current position during each large-strain update. hA?j"y0?