求教：为什么第四条接触面建不了？有代码！

beiwei8547

前面三条接触面都可以建立，第四条就死活建不了？！建了没显示啊，什么呢到底？代码如下：

new
generate zone brick size 40 30 20 p0=(-36,-30,-22) p1=(4,-30,-22) p2=(-36,30,-22) p3=(-36,-30,-2) group 3rdsandstone
;在第一层砂岩上建立四条裂隙接触面
;建立裂隙接触面1
group 3rd1 range plane dd 207 dip -83 origin 4 6 -2  below  x -36 4 y -30 30 z -22 -2
gen separate 3rd1
interface 1 wrap 3rd1 3rdsandstone range x -2 4 z -22 -2
;重新定义group 3rdsandstone
group 3rdsandstone range x -36 4 y -30 30 z -22 -2
;建立裂隙接触面2
group 3rd2 range plane dd 358 dip -68 origin 4 9 -2 below  x -36 4 y -30 30 z -22 -2
gen separate 3rd2
interface 2 wrap 3rd2 3rdsandstone range x -2 4 z -22 -2
group 3rdsandstone range x -36 4 y -30 30 z -22 -2
;建立裂隙接触面3
group 3rd3 range plane norm 1 0 0 origin -1 0 -2 above y -30 30 z -22 -2
gen separate 3rd3
interface 3 wrap 3rd3 3rdsandstone range  y -20 20 z -22 -2
group 3rdandstone range x -36 4 y -30 30 z -22 -2
;建立裂隙接触面4
group 3rd4 range plane norm 1 0 0 origin -2 0 -2 above y -30 30 z -22 -2   
gen separate 3rd4
interface 4 wrap 3rd4 3rdsandstone range  y -20 20 z -22 -2
plot bl gr
plot add inter red

beiwei8547

求高人指点！

yangdengbao

认真检查下自己的模型的网格 我开始也是加不上  后来发现网格有问题 用sketch看