1、以跑完的CO2水合物gro进行拉伸处理,用语句same residue as x<10 和same residue as x>60看了一下,计划将两端的部分固定住,并拉伸。图形上看来没问题 (, 下载次数 Times of downloads: 30)
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2、
measure center [atomselect top "same residue as x<10" ] weight mass
得到5.108371257781982 11.87882137298584 12.215145111083984
measure center [atomselect top "same residue as x>60"] weight mass
得到65.6033706665039 12.411291122436523 12.213542938232422
3、使用gmx make_ndx -f md.gro,选择所有
再将rangeindex.tcl内容复制到已经打开gro文件的命令行窗口,再分别两次输入rangeindex "same residue as x<10"和rangeindex "same residue as x>60",分别得到左边和右边薄片的原子编号,分别复制到index.ndx中,分别为[ left ]和[ right ]