For a program i am working for i have to extract the base point of a dynamic block.
This can be done perfectly by this function:
(cdr (assoc 10 (entget (car (entsel)))))
But i want the entity selected based on a previous slected point. So for example when i selected pt1 (which is a point at the border of the dynamic block) i want to be able to extract the base point on the block whit this point.
(defun CELBLKS ( / e blk ss blkl) (setq blkl "" ss (ssadd)) (while (setq e (entsel "
i have this lsp, it works great but how can modify it if i want select with a window.? exemple: if i have 3 differentes blocks, i want to select them with windows and the lisp select all blocks that are identical of those 3.?
We have a need to select a tangent line/polyline etc and then select two other points we would then like to have the program draw an arc through the two points and yet still be tangent to the initial line/polyline that we picked. We don't care what the radius is as we believe there is only one solution anyway. It would be wonderful if we could just use the Arc command and select start>Second Point> then just use the Tangent Osnap but I guess that is out of the question :-)
The only code that I have come across that even resembles this only allows for one point not two (STILL VERY HANDY AND VERY SLICK)
(vl-load-com) (defun near_vertex_arr (obj / dxf_obj e_next obj_vlax pt_sel par pt_first pt_snd i bulge) ;bruno.valsecchi
How does everyone else hande this? By they way... I dont care what language it is written in :-)
Any way to detect of there are objects currently selected using Autolisp, visual lisp or even VBA. I would like to be able to do something using that as a conditional, so that (assuming the hypothetical variable isSelected is an on/off indicator of whether or not something is selected) I can code something like this:
I need a program to move some selected text to a line something like as extend command but for text objects!
suppose that there is a horizental line (y=constant) or vertical line (x=constant) and some selected text(or other objects), I want a lisp program that move these selected text (or objects) by their "insertion point" to this line.
in other word, if the selected base line is horizental (y=constant) then property of "Y" of all selected text should change to line's "Y"; and if selected base line is vertical (x=constant) then value of "X" of all selected text should match to line's "X" value.
for example, for base vertical line (x=constant) and 3 selected text(or can be any object) result is:
I have a little routine to add two selected numerical texts together and show the result at a selected position. I am using the entsel method to select them. I would like a way to highlight the selected text temporarily. Is this possible. The routine is as follows.
(defun c:T+ ( / Txt1 Txt2 Txt3 Pkt ) ;Adds second selected number to first (setvar "dimzin" 3) (setq curlay (getvar "clayer")) (setq curcol (getvar "cecolor")) (setq curlin (getvar "celtype")) (setq ds (getvar "dimscale"))
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.
I found a lisp for counting of selected block in a table drawing, but I can not remove the bottom line of this lisp that displays "total" blocks. How to remove this line from "total" that is created in the last row of the table that lisp.
lisp : ========================================
(defun c:TABL (/ blk_id blk_len blk_name blks ent h header_lsp height i j TOTAL len0 lst_blk msp pt row ss str tblobj width width1 width2 x y )
I having real difficulty finding a lisp that will find and replace blocks. There are plenty out there and AutoCAD 2013 and lower has a Find and Replace Blocks. However, the frustrating catch is I can seem to find a routine that will allow me to replace only those blocks that I select with a selection set of my choosing. The built in function replaces all of them and will not let you exclude some. We have PID drawings that we want to replace valves on, but not all valves. We don't want to rename. We don't need to BEDIT the existing block.
1) Pick group of blocks
2) specify a new block that will replace all instances of old block
3) replace inserted block with different block. Leaving others alone.
I'm thinking this should be easy, but my search has failed. The blocks in question are not dynamic or attributed either.
Is there a way to determine the type of ACAD object that the user selected? I need to retrieve the value from either a dimension or text. The info could be in either format so the lisp routine needs to determine what was selected so the correct vla-get command is used.
Once I determine what the object is I can use an if statement to retrieve the value.
;user selects the object (setq dimobj (vlax-ename->vla-object(car(entsel)))) ;If ACAD object is a dimension do this. (setq dimvalue (vla-get-textoverride dimobj)) ;If ACAD object is text do this. (setq dimvalue (vla-get-textstring dimobj))
I am trying to write a program to align a block with two selected destination points. - first the user is prompted to select a lwpolyline of a block entity - then he is prompted to pick two destination points
I face problem with the sub-routine SegmentPts. It is supposed to return the coordinates of two vertexes on both sides of the picked point on a lwpolyline using entsel. But here in my program, when i am picking a point using entsel on a lwpolyline inside a block entity, it is not returning the two vertexes on both sides of the picked point. In stead, it returns some other points of the selected LWPOLYLINE. Why it is doing so? Where is the problem in my program?
It works fine with my other programs where i pick on a LWPOLYLINE entity. In this particular case, the LWPOLYLINE is inside a Block entity and the program is not returning correct points.
Please check Lisp Program below:
(defun C:alb() (setq ent1 (entsel " Pick on one side of LWLINE ofa Block:" )) (setq ent (nentselp (cadr ent1))) [code]........
I need very very often to know the angle between two surfaces to write cnc programms...At the moment i draw allways two lines normal to the line between the two surfaces an use then the angle measuring tool.Works good, faster then bks and dimensioning, but need also time and always need to delete the lines after...
Is it possible to get a lisp which ask für 1 point on the first surface, 1 point on the other surface and two points on the line between the 2 surfaces? So the lisp know 3 points of each surface and can give out the angle between... Should be allways between 0-180°
So it needs only 4 klicks to get a angle! That would be so great! Is there a lisp programmer who can make this possible?