AutoCAD Visual LISP / AutoLISP :: Get Attribute Values From Multiple Blocks With Same Name?
Mar 21, 2013
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 have an attribute blocks and this att block has two tag values , is there a simple code for to change 1st tag values automaticly according to 2nd values ?
for example :
1st tag (50x50) - 2nd tag ( 100 ) ==> 50x50-100
if i enter 201 valuse to 2nd tag then 1 st tag has to change as 100x100
if i enter 501 valuse to 2nd tag then 1 st tag has to change as 150x510
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.
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 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).
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.
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.
How to connect to MySQL database and insert data from a set of blocks containing attributes?
Something like:
block 1:
- x coordinate; - y coordinate; - handle;
block 2:
- x coordinate; - y coordinate; - handle;
block 3:
- x coordinate; - y coordinate; - handle;
I've just got the second part (retrieving info from the blocks), but when it comes to connect to the DB I'm completely lost.
For the DB I'm using XAMP for Windows, thus using localhost, user ('user123'), pass ('pass123') and table ('table123'). The table has ID (PriKey and AutoInc), px, py and hdl fields.
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.
i have found the following lisp in a previous thread: (shows XY coordinates of the selected blocks)
(defun C:MyFunc (/ ss Index Ename Lst) (while (or (not ss) (= 0 (sslength ss))) (setq ss (ssget '((0 . "INSERT"))))) (if ss
[Code]....
I want this information to be added to the blocks as hidden attributes so that i can extract them by attout. The work to be done is : attout to excel, autofill an attribute (numbering) then attin.
but my problem is that i cant think of a way to number those blocks IN ORDER (ie top to bottom or left to right) unless by sorting them in excel first by their x or y coordinates
I would like to select blocks based on the layer of one or more attributes. The obvious method would be to isolate that layer and select the ones with attributes that display. But many of the values are empty!
i am wondering if it is possible to alter a specific attribute in cca 250 files? I have this template which has like 50-70 attributes,but not all of them are used. I have to change only one attribute in all of the files. For instance, i have an attribute with a specisfic tag, but the content of it is ie MARK, i want to change MARK to PETER, without having to open,click,retype,save,close every file. Is it possible to automatize it somehow? maybe lisp, batch or even VB?
Any lisp routine for changing the text width of all the attributes in a block globally. I want to change it from 1.0 to 0.8. I have attached a symbol where the attritube tags will be the same.
I have to obtain a selection set of blocks (by window selection and/or single-picks if the user desires) and then an attribute value which I have previously assigned to a variable called TAGVAL to the attribute tag name called PART in that selection set of blocks.
I found a cool routine called RepAtt, but it isn't quite set up to do what I need...
Lisp program, by selecting on screen multiple block attribute and to change those selected (by picking) attributes to colour 252.
At the moment, I'm using a custom macro : ^C^C-ATTEDIT C;252;;
But if I've got a lot of attributes to change, it takes awhile to complete.
I know about BATTMAN but I do not want to change the block entities in that way. The reason I want to change the attributes to colour 252 is because here at this company we do existing drawing in colour 252 and any new equipment on its proper layer colours.
I found a lisp to get block attribute data to a other block. See attachment. I can only apply it to one block. I like to apply it to selected blocks or blocks in a group. Is this possible?
I need to be able to batch process a bunch of title block attributes automatically.
Block Name: Title Block
Tag Name: SH
Currently they come out with just the number 1, 2 , 3 etc I need to add a leading zero ie 01, 02, 03 etc
All the scripts I have will just replace the number with another
I just want to append the zero infront of the existing number
ie the code will need to read the existing number and decide if its less than 10. if it is less than 10, then the code just needs to append the leading 0. if its 10 or over, then do nothing.
We have a few hundred drawings that we need to change certain block attributes. We need to change the valve of the text in that attribute from whatever it is (doesn't matter what it is) to a specific text string.
For example: If the attribute is called "name" and has the text string of ALAN in it in some drawing or BRUCE in other drawings, we want to chaneg all drawings to TOM.
I have a lisp routine that uploads all the blocks contained within a specific folder and inserts or redefines all blocks of the same name within the current drawing.
My problem is that when I run the routine I prompts me that it can't fine the folder? I created a folder called "blocks" and is located straight onto my C:..........but it still doesn't work.
;FUNCTION TO UPDATE ALL BLOCKS WITHIN A DRAWING ;FROM A SPECIFIC DIRECTORY
We wanted to automatically fill a block's attributes from a selection in Excel. I have a piece of code that has the user select/pick a block to fill. What I want is for the selection to fill multiple blocks in an active drawing. Some of the blocks are the same - which means the same tags/attributes. I've included the code that allows the user to select the block and throws the Excel selection to certain attributes.change the code so that
1) I don't have to manually select blocks - it will find them.
2) One cell (from Excel) will go to multiple blocks - some are same block name.
3) An IF statement that if a certain cell isn't blank/nil
(pretend it would be (nth 21 vl) change DESC11 to XYZ and DESC12 to ABC. For Block namesake we'll call one, BLOCK1 (say it has 3 instances and gets different info in each case) BLOCK2 (say it has 2 instances, also gets different info) BLOCK 3 AND 4 both have an attribute - DESCAA1 that gets different info from Excel.
I was able to find/update a LISP program that returns the dynamic block to its original state, overriding the anonymous name and make the actual block name the effective name. I am in the process of manipulating the LISP program so I can select multiple blocks rather than one at a time.
I have to update a block in literally thousands of cad files. I have the book "AutoCAD Secrets Every User Should Know About" and the author gives examples of this by using a Batch File, Script File, and then Lisp Routine. Any easier way to do the following:
Insert "Gennnotes=" (updating the block) into any drawing that has this block in the drawing already, if not Quit.
Typically to do this I would open the drawing "insert" "gennotes=", then cancel the command and save the drawing. I have a lot of subfolders that also hold drawings so the command would have to search through each subfolder for dwgs.
Like I mentioned above, I tried to use the Batch File/Script Method but my batch file failed. It could find the folder Autocad 2012 - English. For some reason it was not seeing the spaces in between. Not sure. Here's the batch file portion of the routine:
Batch file:
For /r C:Sybex %%f in (c:sybex*.dwg) do start /wait C:ACAD2012Autocad 2012 - Englishacad.exe "%%f" /b C:gennotesupdate.scr
Background: Someone exploded an attribute block and copied it hundreds of times throughout a project, each time changing the Attribute Tag to match the Value they expected to appear in their drawing. The drawing must be xrefed, so the attribute definitions do not appear.
(There is only 1 attribute in the block.)
Proposed Solutions:
1:AutoLISP routine which copies Tag data from Attribute Definition into Value of Attribute Block:
Prompt-Select Attribute Definition
Copy Tag data
Prompt-Select Attribute Block
Paste data into Value
(Allow repeat to speed workflow)(*PREFERRED*)
2:AutoLISP routine which copies Tag data from Attribute Definition into Default Value and creates a new Block:
Prompt-Select Attribute Definition
Copy Tag data
Paste data into Default Value
Create New Block
(Select Multiple Objects)(Creates tons of new blocks which are messy)
