Utiles-AutoCAD

;;; PONER COTA A CERO DE UNA ENTIDAD

;;;FLATTEN.LSP version 2k.01, 25-Jun-1999
;;;
;;; FLATTEN sets the Z-coordinates of these types of objects to 0
;;; in the World Coordinate System:
;;; "3DFACE" "ARC" "ATTDEF" "CIRCLE" "DIMENSION"
;;; "ELLIPSE" "HATCH" "INSERT" "LINE" "LWPOLYLINE"
;;; "MTEXT" "POINT" "POLYLINE" "SOLID" "TEXT"
;;;
;;;
;;;=======================================================================

(defun C:z0 (/ tmpucs olderr oldcmd zeroz ss1 ss1len
i numchg numnot numno0 ssno0 ename elist
etype yorn vrt crz
)
(setq tmpucs "$FLATTEN-TEMP$") ;temporary UCS

;;Error handler
(setq olderr *error*)
(defun *error* (msg)
(if (or
(= msg "Function cancelled")
(= msg "quit / exit abort")
)
;;if user cancelled or program aborted, exit quietly
(princ)
;;otherwise report error message
(princ (strcat "\nError: " msg))
)
(setq *error* olderr)
(if (tblsearch "UCS" tmpucs)
(command "._UCS" "_Restore" tmpucs "._UCS" "_Delete" tmpucs)
)
(command "._UNDO" "_End")
(setvar "CMDECHO" oldcmd)
(princ)
)

;;Function to change Z coordinate to 0

(defun zeroz (key zelist / oplist nplist)
(setq oplist (assoc key zelist)
nplist (reverse (append '(0.0) (cdr (reverse oplist))))
zelist (subst nplist oplist zelist)
)
(entmod zelist)
)
;;Setup
(setq oldcmd (getvar "CMDECHO"))
(setvar "CMDECHO" 0)
(command "._UNDO" "_Group")
(command "._UCS" "_Delete" tmpucs "._UCS" "_Save" tmpucs "._UCS" "_World")
;set World UCS

;;Get input
(prompt
(strcat
"\nFLATTEN fija la coordenada Z de los objetos en Z=0."
) )

(initget "Yes No")
(setq yorn (getkword "\nQuieres continuar? : "))
(cond ((/= yorn "No")
(graphscr)
(prompt "\nEscoge los objetos que quieras bajar a Z=0 ")
(prompt
"[Pulsa return para seleccionar todos los objetos del dibujo]"
)
(setq ss1 (ssget))
(if (null ss1) ;if enter...
(setq ss1 (ssget "_X")) ;select all entities in database
)

;;*initialize variables
(setq ss1len (sslength ss1) ;length of selection set
i 0 ;loop counter
numchg 0 ;number changed counter
numnot 0 ;number not changed counter
numno0 0 ;number not changed and Z /= 0 counter
ssno0 (ssadd) ;selection set of unchanged entities
) ;setq

;;*do the work
(prompt "\ntrabajando.")
(while (< i ss1len) ;while more members in the SS
(if (= 0 (rem i 10))
(prompt ".")
)
(setq ename (ssname ss1 i) ;entity name
elist (entget ename) ;entity data list
etype (cdr (assoc 0 elist)) ;entity type
)
;;*Keep track of entities not flattened
(if (not (member etype
'("3DFACE" "ARC" "ATTDEF"
"CIRCLE" "DIMENSION" "ELLIPSE"
"HATCH" "INSERT" "LINE"
"LWPOLYLINE" "MTEXT" "POINT"
"POLYLINE" "SOLID" "TEXT"
)))
(progn ;leave others alone
(setq numnot (1+ numnot))
(if (/= 0.0 (car (reverse (assoc 10 elist))))
(progn ;add it to special list if Z /= 0
(setq numno0 (1+ numno0))
(ssadd ename ssno0)
))))

;;Change group 10 Z coordinate to 0 for listed entity types.
(if (member etype
'("3DFACE" "ARC" "ATTDEF" "CIRCLE"
"DIMENSION" "ELLIPSE" "HATCH" "INSERT"
"LINE" "MTEXT" "POINT" "POLYLINE"
"SOLID" "TEXT"
))
(setq elist (zeroz 10 elist) ;change entities in list above
numchg (1+ numchg)
))

;;Change group 11 Z coordinate to 0 for listed entity types.
(if (member etype
'("3DFACE" "ATTDEF" "DIMENSION" "LINE" "TEXT" "SOLID")
)
(setq elist (zeroz 11 elist))
)

;;Change groups 12 and 13 Z coordinate to 0 for SOLIDs and 3DFACEs.
(if (member etype '("3DFACE" "SOLID"))
(progn
(setq elist (zeroz 12 elist))
(setq elist (zeroz 13 elist))
))

;;Change groups 13, 14, 15, and 16
;;Z coordinate to 0 for DIMENSIONs.
(if (member etype '("DIMENSION"))
(progn
(setq elist (zeroz 13 elist))
(setq elist (zeroz 14 elist))
(setq elist (zeroz 15 elist))
(setq elist (zeroz 16 elist))
))

;;Change each polyline vertex Z coordinate to 0.
;;Code provided by Vladimir Livshiz, 09-Oct-1998
(if (= etype "POLYLINE")
(progn
(setq vrt ename)
(while (not (equal (cdr (assoc 0 (entget vrt))) "SEQEND"))
(setq elist (entget (entnext vrt)))
(setq crz (cadddr (assoc 10 elist)))
(if (/= crz 0)
(progn
(zeroz 10 elist)
(entupd ename)
))
(setq vrt (cdr (assoc -1 elist)))
)))

;;Special handling for LWPOLYLINEs
(if (member etype '("LWPOLYLINE"))
(progn
(setq elist (subst (cons 38 0.0) (assoc 38 elist) elist)
numchg (1+ numchg)
)
(entmod elist)
))

(setq i (1+ i)) ;next entity
)
(prompt " Done.")

;;Print results
(prompt (strcat "\n" (itoa numchg) " objecto(s) bajados a Z=0."))
(prompt
(strcat "\n" (itoa numnot) " object(s) no modificados.")
)

;;If there any entities in ssno0, show them
(if (/= 0 numno0)
(progn
(prompt (strcat " ["
(itoa numno0)
" with non-zero base points]"
))
(getstring
"\nPulsa enter para ver los objetos de Z no nula que o han sido cambiados... "
)
(command "._SELECT" ssno0)
(getstring "\nPulsa enter para desseleccionarlos... ")
(command "")
))))

(command "._UCS" "_Restore" tmpucs "._UCS" "_Delete" tmpucs)
(command "._UNDO" "_End")
(setvar "CMDECHO" oldcmd)
(setq *error* olderr)
(princ)
)

(prompt
"\nFLATTEN v. 2k.01 cargada. Teclea Z0 para usarlo."
)