Basic Lisp

I'm trying to write a basic lisp routine but i'm struggling with one
command:
(command "explode" "all") - it doesn't select all the objects.

when i type in: explode it comes back with Select objects: (multiple)
however when i run my routine it only asks for Select object: (single)

any ideas?

 

HiHo;
Check "pickadd" and "pickauto" system variables
should be 1 and 0

 

Michel, you're a star.

Thanks buddy

-----Original Message-----
From: Michel [mailto:]
Posted At: 04 September 2003 16:21
Posted To: autocad
Conversation: Basic Lisp
Subject: Re: Basic Lisp


EXPLODE behaves differently in scripts, macros and LISP routines than it
does from the Command: prompt; it does only single objects. But there's
a
workaround: Before using the EXPLODE command, set QAFLAGS to 1; do your
exploding, then return QAFLAGS to 0.

"Coro, Rob" a ecrit :

 

Welcome to the wonderful world of AutoLISP,

To complete your EXPLODE ALL routine, you just
need to insert two quotes ("") a the end of your LISP expression.

This this is interpreted by the command line as a RETURN
which ordinarily means "I'm done selecting things... now proceed"

(command "explode" "all" "")

Another nice touch is to end the expression with the (PRIN1)function,
which causes a "carriage return" on the command line,
moving the cursor down a line, ready for your next typed command.

(command "explode" "all" "" (print1))

Here's another example of a command abbreviation
that simplifies TRIM to request only two selection picks.

(defun C:TR ()(command "TRIM" PAUSE "" PAUSE "")(prin1))

The PAUSE expression prompts for user input where a command would expect it.
In this case a mouse click.

Enjoy!

JohnJ

 

So it must be true!

 

Hi

There are several resons why Explode don't alway's work all so well .
Each entity store the scale values case a block is inserted with different xyz
values and if several differently scaled objects is in a block you will need to
make each entity recalculate from these values before you can say you Exploded
the entities.
A known bug with ver.14 made scaled blocks explode into the original unscaled
entities. --------- a major trouble that could best be worked around, by using
the scale values to create a compleatly new entity and then delete the old.

With simple entities Explode often work but the danger about it is that
entities can be exploded into the original entities and if you model by scaling
Solids you realy need to check what happen in your drawing.

P.C.
http://www.designcommunity.com/scrapbook/2000.html

 

Hi

Well I say it like this, that I payed for these experiences while forming a boat
hull, it somtimes is an idear, to make the mesh entity into a block and then
inserting it with slight adjustments for instance making the hull one foot
longer , wider or deeper.
What I encountered was to acturly plot the unfolded panels from a design trimmed
like this, scrapping the lot of panels cut , as when I exploded the new block it
was exploded back into the original mesh entity as before it was placed as
unequal block insert.
----------- took a week to find out what acturly happened and double check from
now two sets of drawings , and that's what acturly happened ; the exploded block
lost the scale information when exploded so I unfolded the original but wrong
hull panels.
Solution was an application, that "looked" at the scale information , ---- was
it code 42 - 45 entity sublist , don't remember , but I still use this
application, that I made acturly create a new entity , by mapcar multiply ,down
all point information , all way thru the mesh entity, make the resulting new
entity into a new block, that exploded would explode right.
The life of a boatbuilder )

Anyway all those designs where quite a few was build is now free-download ;
http://groups.yahoo.com/group/Cyber-Boat/

P.C.
Have a nice day.