AutoCAD Visual LISP / AutoLISP :: Extract Field Expression of Attribute In Block
Mar 8, 2012
Is that possible to have a lisp to extract the Field Expression of a attribute in a block?Specifically, to extract the property VALUE (TextString) of this attribute.After to extract, I would like to put this text extracted in a different layout tab, in the same drawing. In this way, I will have a text linked to the attribute value between two layout tabs. So, when I have to change the attribute value, the text will be updated automatically.
I know that if I use the FIELD command to manually copy and paste this value it will work, but when I have a lot of attributes it becomes very laborious.
I was wondering if it was the COND statement that I would need to use to evaluate a block to confirm that two attribute tags existed and if so, if would process the block to perform an attribute extraction of both of those tags. It would ignore blocks that only had one or the other attribute tags - and only extract the attribute values if the block had BOTH of the tags present - It could be blank, but it had to exist.
For example, I want to find blocks that have the attribute tag "PART_A" and "ID" - and then create a CDF that has the value of "PART_A" in the first column and "ID" in the second column. Then it closes my CDF file.
Then, I want it to scan my drawing again for blocks that contain attribute tag "PART_B" and "ID" and then re-open that CDF file and append the values so that the values of teh attribute "PART_B" is in the first column and the values of the tag "ID" are in the second column.
I have been playing with the following code --- is there anyway to modify the code to get it to do what I need? I have already removed the part that writes the header-row....
select all blocks on certain layers in a drawing, check attribute CIRCUIT in each block if it starts with MS then attribute CONTROL = switched. I hope thats clear enough the way
(defun c:control() (graphscr) (Setq sc (ssget "X" '((0 . "INSERT")
I am trying to put a field formula in an attribute value. Basically I have a block that has a attribute called QTY and it is equal to 1. I can get the object property to equal 1 with this expression:
In the attribute dialog box it will show 1+1 instead of 2. My question is how do I get it to show 2 with out opening the formula box and evaluating it?
I have a inserted block with 4 tags for Length, Thickness, Elevation and Width.How can extract attributes tag values and draw a closed polyline + 2 internal lines, parallel to the block?
Is it possible to make an attribute or a field in a template with page numbering for layouts? Is it possible to make an attribute or a field in a template with the name of the layout?
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).
Maybe it was a naive of me to charge in so boldly. The field appears to have made it in but it does not act like a field and does not reflect the correct value or update. In fact I get no response at all. In fact using "update field" "all" selects the fields but reports that they are locked.
MyProblem: after I insert the block “NrPunct” in my drawing ,, I cannot modify "textHeight", when I edit the ATTDEF (or attribute) with the command “DDEDIT” . Why?
I am trying to update my Title Block with a LISP routine (As the title implies).
So far, this is what i have...
(defun c:aTest (/ ss att) (if (setq ss (ssget "X" (list (cons 0 "INSERT")(cons 2 "TB_PARAMOUNT_ELC") (cons 66 1)(if (getvar "CTAB")(cons 410 (getvar "CTAB")) (cons 67 (- 1 (getvar "TILEMODE"))))))) (progn (foreach ent (mapcar 'cadr (ssnamex ss)) (setq att (entnext ent))
[Code]...
The title block, block name is static. The attribute name is static.
My ultimate goal is to copy the value of one attribute and "paste" that into the value of another attribute, and itterate this through the entire project.
I'm looking for a lisp routine that will globally list all the values from a specific attribute tag within a specific block. The attribute tag is "COMMENT" and the block name is "FSD".
I can't find my notes on how I fixed it. When we insert our title block, it automatically inserts the drawing number. For one user, it doesn't work. The title block inserts, but it won't put in the drawing number. I seem to remember I need to change a setting or something to get it to work, but I can't remember what it is.
I started a lisp that moves blocks according to their attributes and align numeric value in x 0.0. I work currently selected point by point. I will wish it to run at once on a selection set (I am angry with entsel).
(defun c:test (/ sel ent st newpt) (if (setq eset(ssget)) (progn
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 have a lot of attribute blocks in my drawing which i want to move them one by one
so , here is what i want to do :
I have numbers (or texts) in my work area and this numbers also exist in my attribute blocks .. i wanna move my attribute blocks with tag name value reference to my specify area if tag name values are matching with text or numbers in this area .. every block will check my selected tag string and will be move on matching text in my work area.
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 "
Is there a way (or a “trick”) to have one attribute at two different locations inside of one block (I want to avoid filling in the same text twice when this block is inserted or edited)?
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 a series of blocks that I need to insert into a drawing, maybe 100-200 times and then change one of the 6 attributes by an increment of 1.
I've looked at some of the older posts and have not been able to do this. Is it possible to take the tag regerence, in this case OUTLET_REF and automatically add 1 to it when the symbol is inserted.
Can this be done using Diesel or with a bit of lisp?
i have a for example a block with one attribute and would like add a new attribute. i´m trying to read the current block and redefine - it comes a new attribute in propertieswindow but not graphical.
I'm trying to find a routine that will look for ABC block and updates its NUM attributes depending on what's shown in the DESC attribute. There are about 5 of these ABC blocks in a drawing. Block ABC has 2 sets of attributes: DESC and NUM.
When run, it will look at the value of tag DESC, if it contains value XXX, then it will change the NUM value to 1111. And if DESC contains value YYY, then it will change the NUM value to 2222.
I'm looking for a lisp routine that i can globally change the text height and width factor of a particular block attribute. The name of the attribute tag is "TAG". I would like to be able to select all the blocks that i need to edit and then specify what text height and width factor i want to change to.
i'm relatively new to lisp routines. I've been trying to create a routine that will create a custom block with attribute with an option to select which drawing border size is being used. This is what i've got so far;
I have a simple hexagon block with one attribute, i need to be able to copy it and as i do it increases the number by one.
the Block name is note1-2006 the attribute name is NOTENUM. I have tried using some other Lisps but i cant ge them to work. Sometimes i have to put 40 of these on a sketch i hate copying and changing the attribute by one everytime. so it would be nice to copy and as i pick mutliple spots it increase number. Dont know if there is a way to ask user to keep same number or increase. This would save me so much time.
I am trying to create a lisp that prompts you to select multiple lines, and then prompts to enter a name of a block you wish to use. With that information use the measure command to place the entered block along the selected lines with the spacing set to the value in the blocks attribute.
I have a lisp that does most of this with the exception of the extracting the value of the block size to use as the distance between blocks, the current lisp just prompts for the distance.
I have a lot of blocks with different spacing so it is hard to remember the distance.
Here is the current Lisp i use:
(defun c:MEB (/ blk ss l name) ; TharwaT 04. 04. 2011 (if
