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.
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.
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...
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.
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).
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.
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.
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.
I would like to create a lisp program that check the attributes of block using an external database, if tag1+tag2+tag3 = XXYYYYYYZZZZZZZZ ok end program, if not make a circle on block :
I am currently writing a series of routines for setting the layers for text, leaders and dimension commands. The end goal is a system where any annotation command sets the correct layer for the duration of the command, then reverts back to the layer that was active before the command.
I have managed to complete all the code, and it appears to be working fine, I just have one question: I have used -layer "m" "Lay_name" etc... for all layer setting commands, rather than any code to see if the layer exists already. In my limited testing this seems to be suitable, nothing that exists on that layer seems to be affected.
I know how to write code to determine if the layer exists already and set the layer instead, but so far it seems unnecessary??
How can I iterate through and check the object type of all objects in model space? And... then delete them if they are certain types... like lines, circles, polylines, text, mtext, etc?
I'm trying to write a lisp routine that, when I invoke the mleader command, osmode is set to "nearest" & orthomode is set off. I then would like the original settings to be returned.
I need a program that simulate this DOS command: dir /on/b *.dwg >list.txt
it list all dwg files on current open dwg file folder and sort them and finally put them in a text file with list.txt name. something like thistype list.txt)
(sort alphabetically and logically) because of disabled DOS utility in my PC I need a pure lisp functions, I tried to wrote this program but I couldn't!!
I am trying to get my original layer and lintype reinstated after the user is finished with the pline..I know Im suppose to use the while command but am now completely lost on which way to do this
We have a lisp routine that I co-authored ages ago and then haven't done much programming in about 7 years. I seem to have forgotten much of my language skills. This portion of the lisp routine was running fine in autocad 2005 which is what the computer had on it, and it doesn't run on autocad 2010.
I've narrowed it down to the while statement which is why you see it commented out, but that portion is necessary. My main question is was there a change in the language specifically the while statement between 2005 and 2010?
I am using AutoCAD 2011. I have a lisp that I have created/modified.
What it does:
Allows me to Select a layer that I call out and change its color properties back to bylayer.
(i primarily use this when i am cleaning up my drawings, I turn them all to gray with another command i have then i run this one to find all the entities on that specified layer)
What i am trying to do:
I would like this command to do a loop. So say i type in a layer name that does not exist, instead of running through the rest of the command i want it to revert back to "specify layer name" until the correct name is entered for that layer.
I am new to DCL programming and am having an issue getting a button to recognize a command. As a simple first attempt, I am trying to create a dcl with a button called "draw test line" that will draw a line from 0,0 to 1,1. The lisp loads correctly and the "cancel" button works fine. However when the "draw test line" button is pressed, autocad locks up and the only solution is to restart. here is the dcl
Technique that can check the current plotter name for the current tab and assign it to a variable? i.e. can it be assigned to a variable to check if if equals "myplotter1". The next step - is there a technique to change the plotter name to "myplotter2.pc3".
I have partially done the latter part of this in the past using the -plot command line to ASSIGN a new plotter but I would really like to only run the routine if it really needs to.
Is it possible to control the UCS without using the command line? I'd like to access it and control it with vlisp much the same way I can access DXF groups and manipulate insertions. Seems like it should be possible to play with it's definition inside the object model.
I am working on a lisp to scale drawings of various sizes to a predetermined size. After the lisp has run and scaled the drawing, the prompts for base point and reference point run a second time. How can I get this to run through once? I think it has something to do with the way the reference length is being entered. The base point and first reference point are the lower left corner of the drawing, while the second reference point is the lower right corner.
(COMMAND "SCALE" "ALL" "" (SETQ A (GETPOINT " SELECT BASE POINT :")) "R" A (GETPOINT " SELECT REFERENCE POINT : ")) "1'-5"")
Most efficient way to transfer my custom pgp commands? I'm constantly moving between different computers and autodesk versions.
I used to just be able to overwrite the acad.pgp file in the support directory but this doesn't seem to work in the newer versions and I'm hesitant to continue like that in case their are new commands introduced in newer versions that I don't know about then they'd be over written.
Is there anyway to include my command overrides (eg. c=copy) in my back up cui file?
It is possible to cancel a command using visual lisp reactors. If this is not there another way I could do that. I tried to use UNDEFINE but it works only with own CAD commands and not with Visual Lisp command.
I have a custom command that I can initiate (c:TxtE). The function starts running but I need to begin adding several inputs at the command line following this. (ex: "4" "all" "" "oldtext" "newtext"). How do i do that within lisp once the custom command has already begun? If I need to modify the function how would i pass all these as optional type variables?
I am attempting to create a export command for our surveyors that deletes all there point layers and seal layer, then audits and saves the file before opening the etransmit command.
Below is what I currently have.I know there is a better way to do this, but it is above my programing skill right now. ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;SURVey export(defun C:SRVY () (command "-laydel" ; Delete Survey data "Name" "F0" "Name" "F1" "Name" "F2" "Name" "F3" "Name" "F4" "Name" "F5" "Name" "F6" "Name" "F7" "Name" "F8" "Name" "F9" "Name" "F10" "Name" "F11" "Name" "F99" "Name" "SHEET-SEAL" ENTER "YES" ) (command ".audit" "y") ; Audits file (command "_qsave") ; Save changes (command "-etransmit" "Choose Setup" "ACAD2010" "Create transmittal package" ) (princ))
AutoCAD Civil 3D 2012 (Primary), 2011 by contract.
Dell Percision T3500: MS Windows 7 64-bit SP1; Intel Xeon CPU W3505 @ 2.53GHz, 12.00 GB RAM, NVIDIA Quadro 600
I have a Layer named "Arch - Niveau 1".I would like to enter in the command prompt "a1"..It would read if the layer is frozen or thawed and if it is frozen, it will thaw it?
And if the layer is thawed, it would freeze it..What could be added is: To check up if the layer exists and if not, create it.Would do the same for 2 other layer named "Arch - Niveau 2" command "a2" and "Arch - Niveau 3" command "a3". Is it clear?Now the lisp I've found and modified is this:
(defun c:a1 (/ lay ldef flag) (setq layn "Arch - Niveau 1") (command "_.LAYER") (if (not (tblsearch "LAYER" layn)) (command "_Make" layn) (progn (setq ldef (tblsearch "LAYER" layn) flag (cdr (assoc 70 ldef))) (and (= (logand flag 1) 1) (command "_Thaw" layn)) )) (command "")) This lisp looks if it exists, if not, create it and only thaw the layer.
I'm not enough familiar with the "not", the "progn" the "flag", "and" and "logand" (!!!!)
