Files
lisp-scr/downloaded/Pt2Block.lsp

139 lines
3.8 KiB
Common Lisp

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PT2BLOCK.LSP
Michael Weaver
2175 George Road
Fairbanks, Alaska 99712
(907)488-3577 voice and fax
Email:71461.1775@compuserve.com
Mike_Weaver_Alascad@compuserve.com
Fri 02-23-1996
(c)1996 Alascad
This routine will replace points (nodes) in the current drawing will
insertions of a specified block. The insertion scale factor and the
rotation angle for block are supplied by the operator.
Example:
command: PT2BLOCK
Name of block to insert: MYBLOCK
Insertion scale factor: 1
Insertion rotation angle: 0
Select points: <Select points to replace>
Replace MYBLOCK with the name of your block. An enter at the
Select points prompt will select all points in the drawing database
(current space and excluding points found on layer DEFPOINTS).
The blocks will be inserted on the same layer as the points.
|;
(defun c:pt2block(; replace points with blocks
/; no arguments
attreq; value to restore
cmdecho; value to restore
bname; block name to insert
temp; temp variable
ent; entity name
elist; entity list
scf; insertion scale factor
rotang; insertion rotation angle
ss1; selection set of points
indx; index through selection set
sslen; number of points selected
inspt; insertion point
); end of local variable list
(if (and
(setq
bname (getstring "\nName of block to insert: ")
temp (/= "" bname)
)
(progn
(if (or
(tblsearch "BLOCK" bname); the block exists in the drawing
(findfile (strcat bname ".dwg")); the block can be pulled from disk
); end or
T; continue
(progn
(alert (strcat "Block " bname " not found."))
nil
); end progn
); end if block found?
); end progn check for block
(setq scf (getreal "\nInsertion scale factor: "))
(setq rotang (getangle "\nInsertion rotation angle: "))
(setq
ss1 (ssget
'((0 . "POINT"); get points
(-4 . "<NOT"); not on
(8 . "DEFPOINTS"); layer DEFPOINTS
(-4 . "NOT>"); end not
); end the quoted filter list
); end ssget
temp (if (and ss1 (< 0 (sslength ss1))); was anything selected
T
(setq
ss1 (ssget
"X"
'((0 . "POINT"); get points
(-4 . "<NOT"); not on
(8 . "DEFPOINTS"); layer DEFPOINTS
(-4 . "NOT>"); end not
); end the quoted filter list
); end ssget
); end setq (nested)
); end if?
); end setq (outer)
(if (< 0 (sslength ss1))
T
(progn
(alert "No points found.")
nil
); end progn
); end if points found?
); end and
(progn
(setq
attreq (getvar "attreq"); value to restore
cmdecho (getvar "cmdecho"); value to restore
indx -1; a counter
sslen (sslength ss1); number of points selected
)
(setvar "attreq" 0)
(setvar "cmdecho" 0)
(while (> sslen (setq indx (1+ indx)))
(setq
ent (ssname ss1 indx); entity name
elist (entget ent); entity list
inspt (cdr (assoc 10 elist));location of the point
inspt (trans inspt ent 1)
); end setq
(entmake
(list
'(0 . "INSERT")
(cons 2 bname)
(assoc 8 elist)
(cons 10 inspt)
(cons 41 scf)
(cons 42 scf)
(cons 43 scf)
(cons 50 (* rotang (/ pi 180)))
(assoc 210 elist)
); end list
); end entmake
(entdel ent); get rid of the point
(princ "."); indicate progress
); end while
(setvar "attreq" attreq)
(princ (strcat "\t" (itoa sslen) " points replaced. "))
(command "_.redraw")
(setvar "cmdecho" cmdecho)
); end progn
); end if valid input?
(princ)
); end c:pt2block