join problem

[mrkaplan]

any idea why arc and lines in the attached file will not join ?

pedit join fails both in normal and multiple mode , including activating fuzz and add line option . all points coordinates have z = 0  .

[mrkaplan]

I suspect pedit will refuse arcs created from a 3d geometry , which is probably the case here .
replacing arcs one by one does work , but i hope theres a quicker way

[nestly2 · Accepted solution]

Polylines can exist only in a single plane.  The curved section was apparently created in a different UCS than the straight sections.  LIST command displays the Extrusion direction for that object as

Extrusion direction relative to UCS:
                   X=    0.000  Y=    0.000  Z=   -1.000

[mrkaplan]

strange that a 2d object has an extrusion direction . i still think it has to do with 3d to 2d conversion . 

that will have to be modified in a routine , since it does not appear in properties or quickproperties.

thanks.

[SEANT61]

It is available via the Filter command.  With that, perhaps the pertinent objects can be selected and Mirror3D'd (delete source object = Yes) 

[mrkaplan]

seant61 thanks  . I found this small routine  which uses that command

It will select all objects with a Z=-1 extrusion and 3d mirror them .  

(defun c:swap (/ f1 )

(setq f1 (ssget "_x" '((210 0.0 0.0 -1.0))))
(if
(/= f1 nil)
(command "_mirror3d" f1 "" "_xy" "0,0,0" "_y")
)
(setq f1 nil)

(princ)
)

[SEANT61]

That looks perfect.