this gives me the path of the acad.lsp, that is provided it actually exists, however because the acad.lsp is not compulsory it may indeed not exist meaning that the command prompt would return the NIL value instead of the pathname.
based upon that I would like to create a new acad.lsp file if not found by autocad.
Say I have a block that contains two attributes, one contains a value that is a number and another contains a value that is letters. I have many of these blocks placed in a drawing, could you create a lisp that would return the sum of the number value and return it to the command line along with the letter value. Something like this:
Any routine where I could keep picking on my exit arrow blocks (showing how many persons exiting from each space) one-by-one and the program would add up the numbers. For example I pick on blocks with numbers of 2, 4 & 3 and I would get 9.
I have a block named "WIDGET-A". And in that block are (4) attribute tags whose names are:
"ID" "TAG01" "TAG02" "TAG03"
The user will be prompted to pick the value displayed at any of the "TAG##" attributes - they will select the attribute tag they want (we don't know which one it is, we just want to assign that value of the attribute tag they clicked on to a variable called "VAR2".
Now, what we also want AutoCAD to evaluate, behind the scenes, is the value of the attribute tag named "ID" which we know always exists in the block and then assign that value to a variable called "VAR1".
Is there a way for AutoCAD to do this all from only a single user pick on top of an attribute value, in a block whose name isn't always going to be 'WIDGET-A' either.... But the block, whatever it's name, will always have the attribute tag "ID" with a value in it, and we always want to capture the value of whatever attribute tag within the block that the user clicked on.
This time I'm wrestling with getting the values from multiple blocks. The blocks all have the same name but at least the attributes have names this time. Each block have exactly 4 attributes, like: att1 (a number representing chronological order), att2 (some data), att3 (the actual date as a string of when the data was added), att4 (some more data)
I need to get and store the attribute's values. I was hoping to make a selectionset of the blocks and step through using the chronological order number.
At this point I have tried several combinations of foreach and ssget "x" (list (cons 2 MYBLOCK)), but I keep getting errors that I'm sure are telling me that I'm not passing the correct information to the function for iterating through. I'm banging my head.
I need a lisp sub-function that can empty all attributes of a specified dynamic block. The idea being that the specified block contains data that changes often and in order to repopulate the block's attributes with new data to replace the old I wish to just blank out the old data first, because it's possible that the new data may not utilize as many attributes and all of the old data must be removed.
The thing is the block I'm after is on several layouts, CTABs and they all need to be wiped clean.
I have an interesting challenge. I am tasked with updating old drawings. The only difficulty that I've run into with the old files are that the TitleBlocks are all done with all of the attributes are named "SPEC". There are 90 attributes. I'm really struggling with getting each attribute's value and then storing the value to a variable so that I can then put that value into a new TitleBlock. The old TB will be deleted to avoid future confusion in the file.
(To clearify, the old TitleBlock is in model space, while there are actually nine new TitleBlocks all in seperate paper space Layouts, and this program may have to run on hundreds of files.)
getting the values from the Old TB. I need them in order of first to last or last to first (either way will work since I have the variable names in a list that can be reversed if necessary.)
simple function to read through the block's attributes in order and store the attribute's value to a variable name in the seperate list (also in order)?
lisp routine that will add together the values of text entities? For instance, if I have a big parking lot and each section is labeled with the number of spaces, I could pick the texts and it would add all the numbers together to give me a total. Right now I export to excel to do this. I have quite a few situations where this would be handy, not just for parking spaces, so I really just want a lisp that will add all my selected numbers.
What I am trying to do is create a selection set of the "y" values of text. I've started by pulling out all the text on the drawing, but I need it to continue to grab only the "y" values of the text on the drawing.
I cannot determine what triggers this but the command line has stopped returning values from lisp expressions.
eg. If I type (setq fred "Hello") I would expect to see "Hello" returned. I am getting nothing. Similarly if I type !fred I get nothing. If I restart AutoCAD the problem goes away. The after some time it happens again. Is there a toggle or switch or system variable that I'm not aware of?
I am using 2008 and I have a dynamic block with attributes that I want to insert with the below program and have the attritute values filled in automatically. I have done this with other programs in the past and they worked great with literally no problems. They were not dynamic blocks may be the reason this does not work. Why the block will not fill in the attributes like it should. Occasionally in my testing I see a message about "units" when I am inserting the block but I have my insunits set to 0. I have attached one of the blocks I want to use. I am thinking either you cannot do this because it is a dynamic block or there is a new variable that won't let it work.
I need to change the value of some tags in a title block on multiple drawings. I tried using Lee Macs attribute changer [URL]. It works fine but not when tags have the same name.
I then looked at this code - [URL]
Idea was to change the tag names then use Lee Macs program. It too fails when there are duplicate tag names. It changes all tags not just the one I want.
In the the title block I have 3 tags with the name "NAME" but only one will have the value I'm looking to change. If I could place an IF statement some where in the above codes (or another code altogether) to instruct that IF the tag name is "NAME" with value "Dennis (BSL)" then change either the tag name or the value to "Daniel"
Im pretty bad at this programming stuff but with so many drawings I need a easier, automated way of doing this.
There is a BLOCKA that I'd like to extract its attributes - Tag and Color - into an external format (excel). There after, I'd like to import it into the drawing and based on its color attribute value, change the value to that color in the drawing.
How can specific attribute values be extracted from a drawing and assigned to a variable in lisp.
The existing title block is having attributes : Area, Sub area, Description, Drawing type. I want to extract this values and assign it to some variable which I have already listed and then it shall be assigned to some other attributes in the same drawing with Area1, Subarea1, Description1, Drawing type1... and so on.. Both the attributes shall be in the same drawing file.
The attached lsp puts tick marks at equal distances along a line/polyline and tags them with the distanace value from the start point. I draw using millimeter units but things like chainage should be displayed in meter units. Using this routine displays the values in millimeter units which I then 'find and replace' to edit their values to meters.
Take a look at the lisp to see if it can be altered to input the mm value at the start but output the meter value to the text values?
I have several title blocks each in their own paperspace pages. Could have the attribute filled in, but more than likely only one page will have values filled in the attributes. I am looking for a VL method for finding which pages title block is filled in so that I can get those values and fill in the equivalent attributes for all of the other pages. Currently I am using a long set of :
(IF (setvar "ctab" "8.5x11") (IF(TBLSEARCH "BLOCK" "TB-8.5x11") (IF (/= "" (get-att "OWNER" "TB-8.5x11")) ; Function to read a named attribute(editblk "TB-8.5x11") ; Function to pull up the attdia(IF (setvar "ctab" "11x17") (IF (TBLSEARCH "BLOCK" "TB-11x17") (IF(/= "" (get-att "CUSTNMFIRST" "TB-11x17")) (progn ; At the last page ditch the [Code]..........
The example is just a very simplified version of what I'm doing. I just need to find the information, if it exists in any page and store it for later. Afterward, I'll fill in each page's Title Block with the stored information.
I know that this can be done much more efficiently. As I am currently flipping through the pages too much action is occurring on the screen and it makes some people nervous. With VL I should be able to run the search quietly, but I would still like to (setvar "ctab" "to the page with the filled attribute value") after the LISP is finished storing values.
I have a little dialog box with seven radio buttons and a text box that generically accomplishes what it's supposed to do. To retain the current dialog values, I use the write-lline function to store the information and then use read-line to bring that information back in for other Lisps that I use. As long as the user doesn't open the dialog, whatever options were last selected will remain in effect.
However, if the user re-opens the dialog, then whatever defaults I have initially set up in the dialog will then become active (in other words, whichever of the radio buttons I have set to "1")
My question is whether or not I can have the dialog box set up so that if a user selects an alternate radio button, that radio button will keeo it's value whether or not the dialog is opened and until and if the user changes it..
As it is now, whenever the user opens the dialog box to change, say one radio button, the user then has to change the other radio buttons if the defaults don't match the current run requirements.
how to extract the attribute value of a particular block in multiple drawings to an excel file.
Eg... there are nearly 800 drawings where I need to list down the description and Drawing number which is mentioned in the title block name "Title". The Drawing Number and the description is done in same attribute block. extract the data into an excel file or txt file. All the drawings are saved in one location.
I got a new work and get it done in the next 2 days, but first I need to do this... from a text file (or excel file, I got both) I got 3 columns, 1 one for node number, and 2 other for X and Y coordinates for each node.
So from that file I need to insert into autocad the node numbers as text (using the current style and height) at the point specified by the other two columns, that are the X,Y coordinates which will be the insertion point of text..
I need to match few attribute values from one block to different block. I download a lisp file called; ca.lsp which can match the single attribute value. I modified it for more than one attribute value matching. It is ok but still wish to overcome two issues for batch prcess
1. picking up the blocks by selection
2. click the alternative block numbers of times to match the numbers of attribute values I needed.
How to modify this lisp I can run it by block name selections instead of picking selection which enable me to run batch process for numbers of drawing? That will be good...
Lisp & Demo file attached (Match attribute value, A, B & C to Attribute 1, 2 & 3).