各位大哥：为什么宏命令编辑不成功呢

      是这样的：题目是在两个 marker之间创建一个marker我按书上编辑了一个宏命令，然后用debug调试，可是老提示说：
Enter first_marker (required)
! >>  
! >> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! >> !  SELECT OBJECT
! >> undo begin
! >> group modify group=SELECT_LIST object=.model_14.ground.MARKER_1
! >> undo end
! >> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! >>  
ERROR:  No Marker was found because 'MACRO_1' does not exist beneath '.model_14.PART_2'.
ERROR:  -> MACRO_1
各位大虾，请帮帮忙，小弟急用！谢谢！
  
    

谢谢！是这样的
  
!$first_marker: t=marker
!$second_marker: t=marker
!$new_marker_name: t=new_marker
!
marker creat marker_name=$new_marker_name&
   location=((($first_marker.loc_x)+($second_marker.loc_x))/2)&
            ((($first_marker.loc_y)+($second_marker.loc_y))/2)&
            ((($first_marker.loc_z)+($second_marker.loc_z))/2)&
  orientation=0,0,0 &
  relative_to=ground
  
然后，我输入了两个 marker点（是一开始就建立的）用debug调试，
就提示上面的错误

谢谢！成功了！
太激动了..........

可是，为什么我那样写不行呢？

谢谢！

斑竹好热心哦,呵呵,精神可敬

renzhoucan 发表于 2005-1-7 14:39
贴上你写的macro来看看……

renzhoucan 你好!
我是学习ADAMS的新手，在学习宏命令那块遇到了困难，想向您请教一个问题。
题目是在两个 marker之间创建一个marker我按书上编辑了一个宏命令，以下是命令
! $FIRST_MARKER: T=marker

! $SECOND_MARKER: T=marker

! $NEW_MARKER_NAME: T=new_marker

!

marker create marker_name=$NEW_MARKER_NAME &

location = (( ($FIRST_MARKER.loc_x)+($SECOND_MARKER.loc_x) )/2 ),&

(( ($FIRST_MARKER.loc_y)+($SECOND_MARKER.loc_y) )/2 ),&

(( ($FIRST_MARKER.loc_z)+($SECOND_MARKER.loc_z) )/2 )&

orientation = 0,0,0&

relative_to = ground
在运行的时候出现了以下错误，
ERROR:   ---------------------------------------------------------------------
ERROR:   Error detected on line number 11, character 10 of the macro '.MACRO_1'.
ERROR:   'location' is not a valid entity.
ERROR:   The command was not executed.
ERROR:   >> location = (( (.model_1.ground.MARKER_1.loc_x)+(.model_1.ground.MARKER_2.loc_x) )/2 ),&
ERROR:   ---------------------------------------------------------------------
ERROR:   ---------------------------------------------------------------------
ERROR:   Error detected on line number 13, character 76 of the macro '.MACRO_1'.
ERROR:   Invalid input. Enter an object, qualifier, or action.
ERROR:   The command was not executed.
ERROR:   >> (( (.model_1.ground.MARKER_1.loc_y)+(.model_1.ground.MARKER_2.loc_y) )/2 ),&
ERROR:   ---------------------------------------------------------------------
ERROR:   ---------------------------------------------------------------------
ERROR:   Error detected on line number 15, character 75 of the macro '.MACRO_1'.
ERROR:   Invalid input. Enter an object, qualifier, or action.
ERROR:   The command was not executed.
ERROR:   >> (( (.model_1.ground.MARKER_1.loc_z)+(.model_1.ground.MARKER_2.loc_z) )/2 )&
ERROR:   ---------------------------------------------------------------------
ERROR:   ---------------------------------------------------------------------
ERROR:   Error detected on line number 17, character 13 of the macro '.MACRO_1'.
ERROR:   'orientation' is not a valid entity.
ERROR:   The command was not executed.
ERROR:   >> orientation = 0,0,0&
ERROR:   ---------------------------------------------------------------------
ERROR:   ---------------------------------------------------------------------
ERROR:   Error detected on line number 19, character 13 of the macro '.MACRO_1'.
ERROR:   'relative_to' is not a valid entity.
ERROR:   The command was not executed.
ERROR:   >> relative_to = ground
ERROR:   ---------------------------------------------------------------------
新建的点在原点位置，没有在两点之间，请问是怎么回事啊，万分感谢！