AutoCAD Visual LISP / AutoLISP :: How To Check If System Variable Is Read Only

Nov 22, 2012

How do I check, with LISP, if a System Variable is read only? In particular ANNOTATIVEDWG. This one is read/write when there are no annotative objects in a drawing, but read-only if there are.

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AutoCAD Visual LISP / AutoLISP :: Change System Variable (TEXTSIZE) With Routine?

Dec 30, 2013

Is it possible to change the system variable "TEXTSIZE" with an autolisp routine? I have hundreds of drawings that have varying textsize settingings and I can't get it to let me change it, unless I go into "Style" and manually change the value to "0" before I run the routine, and there are simply too may drawings to do that everytime. So, is there a way to reset the textsize to 0 through Lisp?

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AutoCAD Visual LISP / AutoLISP :: Unable To Read Plot Settings From Variable In Text File

Sep 2, 2012

I’m trying to create a plot command that reads settings in from a variable stored in a text file but its becoming muddled up somewhere.

(defun c:MYPLOT ();Setting nessesary variables...(setq fname "C:/ICT/AutoCAD_Architecture_Suite_2012/CUSTOM/TREADSTONE/PEN/MYOUTPUTDEVICE.PEN")(if(setq f(open fname "r"))(while (setq MYOUTPUTDEVICE (read-line f))(close)))(setq fname "C:/ICT/AutoCAD_Architecture_Suite_2012/CUSTOM/TREADSTONE/PEN/MYPAPERSIZE.PEN")
[code].......

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AutoCAD Visual LISP / AutoLISP :: Check For Last Command

Jan 8, 2014

We have developed processes, standard operating procedures, work instructions (whatever you want to call it) for several tasks we do on a regular basis.  More importantly, tasks that we don't do on a regular basis.  On some processes, performing certain commands is a critical step in the quality of the product.  I have also developed a lot of lisps to streamline these processes.  Of course there are commands that just don't make sense to try and include into existing lisps.

The problem we're having though, is that people are not following the processes.  I don't know if they think they are smarter than the process, or if they don't understand the process, or if they are just complacent.

One of the things that would really work to get everyone to follow the process, is to have my lisp routines check to see what the last entry at the command line was.

For example, if one of my lisps depended on the drawing be saved, well, instead of putting the save command in the lisp, sometimes it would be beneficial to check to see if the drawing was saved in the first place.  Kudos to those who do follow the process, they do save the drawing, and then run the lisp.  On rather large files, I would prefer not to save the drawing twice, back to back.

There are a lot more benefits to checking to see what the last user entry was, in a certain drawing. 

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AutoCAD Visual LISP / AutoLISP :: Asterisks In Variable Name?

Nov 15, 2013

I was just looking through one of Lee Mac's tutorials and I'm curious about something.

Here's a link to the tutorial I'm talking about.

[URL]

What is the purpose of the asterisks in the following code (marked in RED):

(if (not *ans*) (setq *ans* "Alpha"))
(initget "Alpha Beta Gamma")
(setq *ans*
  (cond
    (
      (getkword
        (strcat "

[code]....

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AutoCAD Visual LISP / AutoLISP :: Set TARGET Variable

Apr 23, 2013

I am trying to change the current TARGET variable to 0,0,0. If the variable is not changed is causes problems with plotting. I have the VBA that will change the TARGET variable. VBA works no problems. I am wanting to replicate in LISP because I do not want to have to convert to .NET and do not want to make sure the user has the VBA loded on thier system.  Here is what have so far.

;;;Get active viewport
(setq avp (vla-get-ActiveViewport (vla-get-ActiveDocument (vlax-get-acad-object))))
;;;Get current TARGET variable
(setq CTarget(vla-get-Target avp))

Here is the problem. Is changing or putting the vaiable.I have tried

(vla-put-Target avp (vlax-3D-point '(0.0 0.0 0.0)))

and

(vla-put-Target avp (vlax-make-variant (vlax-3D-point '(0.0 0.0 0.0))(vlax-variant-type  CTarget)))

They either error out or nil with no change. I have even tried to locate it in the Dictionaries.

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AutoCAD Visual LISP / AutoLISP :: Routine To Check Overlap

Aug 12, 2012

I want autolisp program to check overlap like in closed or open polyline with any other entity in the drawing, whether other entity is overlapping inside the polyline or not, i am beginner in autolisp and want to know exactly which functions are used or the program itself Also if possible to check circular overlap of one polyline with itself.

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AutoCAD Visual LISP / AutoLISP :: Contents - Check How Many Elements Are Same

Jul 10, 2012

I have a List with values shown

A=(0 0.1 0.1 0.1 0.2 0.2 0.3 0.3)

I have to check that how many elements are the same and which one is the first and the last in the same elements.

Like 1.0 is the number 1 element and third element the the 3rd element. how can i Manipulate is Visual Lisp.

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AutoCAD Visual LISP / AutoLISP :: Check String To Set Up A Dimstyle

Nov 18, 2011

I've been working on a lisp to set up basic settings such as text styles, dim styles, discipline specific layers and things of that nature.

I have a prompt to ask for a discipline designator as a string.  I want to have an If statement or a conditional to read that string and check for a "C" if it finds it I want to have it set up a dimstyle to decimal feet ect and if not do it as architectural units.

This is just a test lisp that I'd like to add to the main one listed above...  

(defun c:test(/ disc dsnm dsna)

(setq disc (getstring "
Discipline (G,C,S,M,E,CP): "))                ;Prompt for Discipline
(setq ds (getint "
Dimscale Factor: "))                                          ;Prompt for Dimscale
[code].......

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AutoCAD Visual LISP / AutoLISP :: How To Get Net Volume Results Into Variable

Nov 11, 2011

There is a command in autocad that will get a Bounded Volume from a closed polyline and a volume surface (command "AeccReportSurfBoundedVolume").  It reports the results to the screen. How to get the "Net Volume" results in to a variable using Lisp? 

Maybe a lisp routine that gets information from the text screen.  That would not be ideal but I could work with that.

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AutoCAD Visual LISP / AutoLISP :: Subtracting List From A Variable

Sep 17, 2013

I've created a list and want to subtract all the values within it from another variable, and assign it to a new variable. How do I do it?

Basically, I ask for ground level (assigned to variable G1), and then any number of depths beneath that (assign to list LVLLIST), and I want to return the value of the bottom point. So it's all the values in LVLLIST added together and subtracted from G1. And assign it to a new variable BASE.

For example,

G1 = 650.00
LVLLIST = (1.23 23.26 0.13 50.23)
(setq BASE (- G1 LVLLLIST))

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AutoCAD Visual LISP / AutoLISP :: Creating Variable Names

Nov 28, 2008

How to write some code which could create variable names like var1, var2, var3, etc. I need to do this because I have a large number to create and the actual number is variable and unknown.

Instead of manually writing a large number of line like

(setq var1 value1)
(setq var2 value2) etc

I used to be able to put 1 line in a loop to create and assign a large number of variables. I remember that it involved the use of the set (not setq) and read functions.

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AutoCAD Visual LISP / AutoLISP :: Program Variable Names?

Feb 28, 2012

Is there anyway to program variable names?

What I was thinking of was in a loop some times I need multiple sets of similar variables but am not sure how many sets I am going to need. I would like to be able to increment the variable names each time the loop runs.

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AutoCAD Visual LISP / AutoLISP :: Command Line Variable

Feb 7, 2013

Somehow, I manage to turn of one variable that display errors on command line.

For example:

(seq a 6)

suppose to return, on command line, something like:

error no function definition: SEQ

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AutoCAD Visual LISP / AutoLISP :: Multileader Scale Variable

Oct 10, 2008

A2008. Is there a setvar, setenv, registry entry etc. that can be used to change the scale of Multileaders with annotative off to have the same effect that DIMSCALE has on Q leaders? I want to have a single scale-independent Multileader style and modify it on the fly along with DIMSCALE and LTSCALE. I'd use Qleader but UCS's do odd things to text position and orientation.

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AutoCAD Visual LISP / AutoLISP :: Passing String As Variable?

Jul 9, 2013

I would like to use a string as a variable if this is possible. I've got:

new-pl-lay (as a variable that holds layer name "UGL_PL_NEW")

first-cable (as a string that holds "new-pl-lay")

I'd like set the current layer to "UGL_PL_NEW" by using the first-cable string.

Something like:

(command "_.layer" "m" (read first-cable) "")

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AutoCAD Visual LISP / AutoLISP :: Convert Variable To Command Name?

Mar 12, 2012

I am trying to shorten my code by using the variable as the command name. Is that possible to do?

;; instead of this(cond ((eq USER_INPUT_ANSWER "blk-cdtree-01-06")(C:blk-cdtree-01-06)) ((eq USER_INPUT_ANSWER "blk-cdtree-01-08")(C:blk-cdtree-01-08)) ((eq USER_INPUT_ANSWER "blk-cdtree-01-10")(C:blk-cdtree-01-10)) ((eq USER_INPUT_ANSWER "blk-cdtree-01-12")(C:blk-cdtree-01-12)));; do something like this(C:blk-cdtree-(substr USER_INPUT_ANSWER 11))

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AutoCAD Visual LISP / AutoLISP :: How To Save Filename As Variable

Oct 20, 2011

how to write a lisp command, or function, that will save my newly created drawing with a file name is that is called up from a variable.

For example:

(setq filename variable)
(command "saveas" "r14" "filename")

and i would want the outcome to be:  variable.dwg, rather than filename.dwg. I have tried numerous different ways of doing this with command prompt and cant seem to get anything to stick.  Everything that works just creates a file named "filename.dwg", which is not what i want to do.

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AutoCAD Visual LISP / AutoLISP :: Toggling Check Mark In A Menu

Oct 8, 2013

I am trying to add an on and off  checkmark via lisp to an item in a pull down menu.

It can be done with diesel but only on system variables.

In my case i can't use sysvars - only lisp.

I tried (menucmd ....) but I get nil.

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AutoCAD Visual LISP / AutoLISP :: Check If 2 Selections Set Contain Exact Same Entities

Jul 22, 2013

I have 2 selection sets and I'm looking for a more elegant method of checking if both sets contain the exact same entities (note - the order of entities might be different).

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AutoCAD Visual LISP / AutoLISP :: Check If Layer Is In One Of Multiple Lists

Jul 18, 2013

I am trying to write a piece of a program that gets the layers from a drawing, and checks each one against a list of layers. If the layer is not a member of any of the lists it asks the user which layer list to add it to. This is what I have so far, but every time I try to run it I get a bad argument error.

(setq layerspresent (vla-get-layers (vla-get-activedocument (vlax-get-acad-object))))(setq i 0) (repeat (vla-get-count layerspresent)(setq thislayer (vla-get-name (vla-item layerspresent i)))(cond(((progn(or(= nil (member thislayer 0list))(= nil (member thislayer detaillist))(= nil (member thislayer clearancelist))(= nil (member thislayer clearanceelist))(= nil (member thislayer doorsdrawerslist))(= nil (member thislayer hiddenlist))(= nil (member thislayer hiddenelist))(= nil (member thislayer deletelist)))));ifs((progn(initget "0 DEtail CLearance CLEarance-e DOOrs-and-Drawers HIdden HIddEn-E DELete")(setq userchoice (getkword "

[code]...

 Depending on the user's choice the layer gets written to an external file where the layer lists get their layers from in the beginning and then adds the layer to the relevant list to use later in the program.

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AutoCAD Visual LISP / AutoLISP :: Check If An Object Already Has A Reactor Connected

Mar 30, 2012

how can I check whether an object has a reactor connected?

I wrote the following
 
(defun c:**** (/ ogg collegaReactor) (setq ogg (car (entsel))) (setq collegaReactor (vlr-object-reactor (list (vlax-ename->vla-object ogg)) "NOMEAPP" '( (:vlr-modified . testedit) (:vlr-objectClosed . endedit) ) ) ))(defun testedit (notifier-object reactor-object parameter-list / ogg collegaReactor) (alert "testedit"))(defun endedit (notifier-object reactor-object parameter-list / ogg collegaReactor) (alert "endedit"))
 
If I start two or three or more times the "c:****" and select the same object, when I changethe "alert" appear several times.

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AutoCAD Visual LISP / AutoLISP :: Check To See If VIEWPORT Entities Are In Selection Set?

Nov 19, 2013

I have redined AutoCAD's copy command alias to C, but to also do other things, like set a few important variables in the background.  One of the lisps I've incororated are making new viewports, that also create layers that are visibly specific to the viewport being created.

We were tasked a while ago to do an easy job of copying entities (dimensions, text and what not) in a layout.  The problem is, users are copying the viewports too, which is bit more ineffificent than using the create viewport command I developed.

Is there a way to see if a selection set includes (0 . "VIEWPORT") entities?  If the check returns nil, well then all is good.  If the check returns "true", then I can prompt the user that a "VIEWPORT" entity is selected.  I can then exit the command, or ask the user if they are sure they want to copy the "VIEWPORT" entity.

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AutoCAD Visual LISP / AutoLISP :: Can't Append Registry To Value Of SAVEFILEPATH Variable

Oct 2, 2012

How come I can't modify the following registry key to the SAVEFILEPATH variable?
 
(vl-registry-write "HKEY_CLASSES_ROOT\SOFTWARE\Treadstone\File Sweeper" "NETWORK_LOCATION" SAVEFILEPATH)

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AutoCAD Visual LISP / AutoLISP :: Update Block Attribute With Variable

Mar 8, 2013

I would like to create a lisp that does the following:

Update a titleblock attribute with a $variable.

The titleblockname is variable / not static.

The attribute is not variable / Static, DW_SCALE

The titleblock is always places on the same layer, BL$4----

The (custom)-plotscale is stored in the $var "gvpsc".

I've tried to ajust the following lisp code. But I couldn't extract the part I need.

The problem is, the code checks all the layouts and updates all the titlblocks one by one.

Truely a good code. 

The only problem is, I don't have multiple layouts and I have a variable titleblock name.

Here is to code i've tried to convert to something I could use.

(defun C:UPD-DPC () (setvar "cmdecho" 0) (setq blkname "DPC-STEMPEL");(getstring "
Enter the name of block to update: ")) (setq att1 "DW_DATE");(strcase(getstring "
Enter the name of the attribute to change: "))) (setq newatt (strcase(getstring "

[Code] ....

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AutoCAD Visual LISP / AutoLISP :: Replace Drive By Environment Variable?

Apr 26, 2012

I want to know if it's possible to replace a drive by an environment variable in a search path in the profile. For example:

to replace C:Program FilesAutodeskAutoCAD Mechanical 2012Acadm by %LOCAL DRIVE%Program FilesAutodeskAutoCAD Mechanical 2012Acadm. 

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AutoCAD Visual LISP / AutoLISP :: Storing Variable / Associate / Recall

Oct 24, 2013

I am looking for some way to store variables. For example in loop I want to

Enter a number
1

Enter hatch pattern
Ansi31

Enter a number
3

Enter hatch pattern
Ansi32

Enter a number
1

Enter hatch pattern <Ansi31>
Enter
Enter a number.... etc.

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AutoCAD Visual LISP / AutoLISP :: Dimstyle Break Size Variable?

Aug 28, 2009

I want to set the break size in all of my dimstyles but I can't find a system variable for it. know what it is or how else to set it?

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AutoCAD Visual LISP / AutoLISP :: Pass Command Line Variable

Mar 21, 2012

I have this small lisp routine:

(defun c:1p nil
(command "_.-plot" "yes" "" "controls 11x17" "Ledger (11 x 17)" "inches" "LANDSCAPE" "NO" "view" "01" "FIT" "CENTER" "YES" "newpap2.ctb" "YES" "As" "NO" "NO" "yes" )
(princ)
)

I want to use it to plot different views which I will append to the command when it is called from within AutoCAD.This code will, of course, print view one.Currently my worst case is 25 views and, for that situation, I have simply repeated this code 25 times with a different function name an view number for each view. Eventually I would like to make a dialog box that would allow me to select with checkboxes (toggles) the views to print and with a button to print all.

For example, if I wanted to plot view 25, after I had loaded this lisp routine I would enter, on the command line in AutoCAD, the function name ("pp" perhaps?) followed by some variable (in this case 25, but could be any view name. ie. 01, elev, detail) and the view name would be inserted at the appropriate place.

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AutoCAD Visual LISP / AutoLISP :: Removing A Character From A Variable / String

Oct 24, 2011

I am using  a variable that is being called up from a .csv file for a file name.  By default this variable automatically includes a comma due to it being called from a .csv.

How to remove a character ( , ) from a variable? I'm not sure if this is along the right line or not, but i used the READ function to read the variable as a string (i think thats how it works?).

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AutoCAD Visual LISP / AutoLISP :: How To Compare Value Of Variable To Set String Of Text

Jun 11, 2012

I would like to know how I can compare the value of a variable to a set string of text if the two prove to be equal perform task A if the two prove different perform task B?

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