请各位达人指导小弟！！

mayanyun

各位达人，小弟在做三维的粒子转向装置的设计，遇到了一些问题，想请教一下：我想画出x＝0平面内的磁场、x＝0.001平面内的磁场，可是不知道怎么画；在后处理中，加入电子并观察电子在其中的轨迹，可是老是提示我电子的质量为零（我用的是国际单位制下的电子质量）。
我采用的是用autocad建模，然后将模型输入，附件里就是建模用的sat文件
我的命令流如下：
/input,menust,tmp,'',,,,,,,,,,,,,,,,1   
/GRA,POWER
/GST,ON
/PLO,INFO,3
/GRO,CURL,ON
/CPLANE,1   
/REPLOT,RESIZE  
WPSTYLE,,,,,,,,0
~SATIN,file,sat,,SOLIDS,0   
/NOPR   
/GO
ET,2,sourc36            ! Current source element
EMUNIT,MKS          ! MKS units
! Define convenient parameters:
*SET,I,2             ! Current (amps)   
*SET,N,700               ! Turns
*SET,S,0.039              ! Solenoid length
*SET,R,0.176              ! Solenoid radius
*SET,THK,0.112           ! Solenoid thickness   
!   
R,2,1,N*I,THK,S         ! Real constant set 2:  coil type, current  
! thickness, length,
!first coil
LOCAL,11,1,0,0,0.0195, , , ,1,1,                  ! Global cylindrical system   
N,1001,R,90                ! Nodes for the source element   
N,1002,R
N,1003  
TYPE,2              ! Attributes
REAL,2  
E,1001,1002,1003    ! Element definition
/ESHAPE,1   
/VUP,1,Z
/TRIAD, LBOT
/TYPE,1
!second coil
FLST,4,3,1,ORDE,2   
FITEM,4,1001
FITEM,4,-1003   
NGEN,2,1003,P51X, , ,0,0,0.18,1,
TYPE,2              ! Attributes
REAL,2  
E,2004,2005,2006    ! Element definition
/ESHAPE,1   
/VUP,1,Z
/TRIAD, LBOT
/TYPE,1
!third coil
FLST,4,3,1,ORDE,2   
FITEM,4,1001
FITEM,4,-1003   
NGEN,2,2006,P51X, , ,0,0,0.36,1,
TYPE,2              ! Attributes
REAL,2  
E,3007,3008,3009    ! Element definition
/ESHAPE,1   
/VIEW,1,2,1,.5  
/VUP,1,Z
/TRIAD, LBOT
/TYPE,1
!fourth coil
FLST,4,3,1,ORDE,2   
FITEM,4,1001
FITEM,4,-1003   
NGEN,2,3009,P51X, , ,0,0,0.54,1,
TYPE,2              ! Attributes
REAL,2  
E,4010,4011,4012    ! Element definition
/ESHAPE,1   
/VUP,1,Z
/TRIAD, LBOT
/TYPE,1
!fifth coil
LOCAL,12,1,0,0.83,0.8495, ,90, ,1,1,                  ! Global cylindrical system   
N,5001,R                ! Nodes for the source element  
N,5002,R,90
N,5003  
TYPE,2              ! Attributes
REAL,2  
E,5001,5002,5003    ! Element definition
/ESHAPE,1   
/VUP,1,Z
/TRIAD, LBOT
/TYPE,1
!sixth coil
FLST,4,3,1,ORDE,2   
FITEM,4,5001
FITEM,4,-5003   
NGEN,2,1003,P51X, , ,0,0,0.18,1,
TYPE,2              ! Attributes
REAL,2  
E,6004,6005,6006    ! Element definition
/ESHAPE,1   
/VUP,1,Z
/TRIAD, LBOT
/TYPE,1
!seventh coil   
FLST,4,3,1,ORDE,2   
FITEM,4,5001
FITEM,4,-5003   
NGEN,2,2006,P51X, , ,0,0,0.36,1,
TYPE,2              ! Attributes
REAL,2  
E,7007,7008,7009    ! Element definition
/ESHAPE,1   
/VUP,1,Z
/TRIAD, LBOT
/TYPE,1
!eighth coil
FLST,4,3,1,ORDE,2   
FITEM,4,5001
FITEM,4,-5003   
NGEN,2,3009,P51X, , ,0,0,0.54,1,
TYPE,2              ! Attributes
REAL,2  
E,8010,8011,8012    ! Element definition
/ESHAPE,1   
/VIEW,1,2,1,.5  
/VUP,1,Z
/TRIAD, LBOT
/TYPE,1
EPLOT   
!*  
/NOPR   
/PMETH,OFF,1
KEYW,PR_SET,1   
KEYW,PR_STRUC,0
KEYW,PR_THERM,0
KEYW,PR_FLUID,0
KEYW,PR_ELMAG,1
KEYW,MAGNOD,1   
KEYW,MAGEDG,0   
KEYW,MAGHFE,0   
KEYW,MAGELC,0   
KEYW,PR_MULTI,0
KEYW,PR_CFD,0   
/GO
!*  
/COM,   
/COM,Preferences for GUI filtering have been set to display:
/COM,  Magnetic-Nodal   
!*  
SAVE
!*  
ET,3,SOLID98,10
!*  
mp,murx,1,1
CM,_Y,VOLU  
VSEL, , , ,       1
CM,_Y1,VOLU
CMSEL,S,_Y  
!*  
CMSEL,S,_Y1
VATT,       1,       2,   3,       0
CMSEL,S,_Y  
CMDELE,_Y   
CMDELE,_Y1  
!*  
SAVE
MSHKEY,0
MSHAPE,1,3d
CM,_Y,VOLU  
VSEL, , , ,       1
CM,_Y1,VOLU
CHKMSH,'VOLU'   
CMSEL,S,_Y  
!*  
MSHAPE,0,3d
MSHKEY,1
VMESH,_Y1   
MSHKEY,0
!*  
CMDELE,_Y   
CMDELE,_Y1  
CMDELE,_Y2  
!*  
MSHKEY,0
MSHAPE,1,3d
CM,_Y,VOLU  
VSEL, , , ,       1
CM,_Y1,VOLU
CHKMSH,'VOLU'   
CMSEL,S,_Y  
!*  
VMESH,_Y1   
!*  
CMDELE,_Y   
CMDELE,_Y1  
CMDELE,_Y2  
!*  
MSHKEY,0
MSHAPE,1,3d
FLST,2,1,6,ORDE,1   
FITEM,2,1   
VIMP,P51X,0
FLST,5,4,5,ORDE,3   
FITEM,5,2   
FITEM,5,-4  
FITEM,5,7   
CM,_Y,AREA  
ASEL, , , ,P51X
CM,_Y1,AREA
CMSEL,S,_Y  
CMDELE,_Y   
!*  
!*  
AREFINE,_Y1, , ,1,0,1,1
CMDELE,_Y1  
!*  
FLST,2,1,6,ORDE,1   
FITEM,2,1   
VIMP,P51X,0
eplot   
FLST,2,2,5,ORDE,2   
FITEM,2,5   
FITEM,2,8   
DA,P51X,MAG,0,0
FINISH  
/SOL
MAGSOLV,2, , ,0.001,25,1
FINISH  
/POST1  
!*  
/VSCALE,1,1,0   
!   
!*  
PLVECT,B, , , ,VECT,ELEM,ON,0   
SAVE
/REPLOT,RESIZE  
FLST,2,2,8  
FITEM,2,0.5,0.25,0  
FITEM,2,-3.55,-0.95,0   
/ZOOM,1,SCRN,0.853448,0.406483,0.950000,0.319148
FLST,2,1,8  
FITEM,2,-3.4,-0.85,0
FLST,2,1,8  
FITEM,2,0,0,0   
/AUTO,1
/REP,FAST   
FLST,2,1,8  
FITEM,2,0,0,0   
FLST,2,1,8  
FITEM,2,0,0,0