Autocad Lisp Count Objects

  1. Free Autocad Lisp
  2. Autocad Lisp Count Objects
  3. Lisp Count The Number Of Elements In A List
  4. Autocad Lisp Commands
12 Jan, 2006By: Tony Hotchkiss

AutoCAD > AutoCAD Forum > AutoCAD Customization Forum > Visual LISP, AutoLISP and General Customization. Oliver's code is forcing user to select text, it is not going to count how many objects are already selected, because he removed sssetfirst. Selection Lisp counting objects selected. I am looking for a lisp routine, that will select all objects in same layer, after one of them selected.in model space. Something easier and faster than 'Quick Select' option. I am not familiar by making lisp routines, so I would need detailed information how to create.or better, already created lsp file, so I can download it. Use Quick Select to count specified objects in your drawing. Right-click in the drawing area, and choose Quick Select. In the Object Type list, select the type of object you want to count. Optionally, filter objects by setting a property, operator, and value for the type of objects you want to count. Copy objects from X-ref and Blocks in AutoCAD View Larger Image The usual method which comes to mind for selecting a nested object is by exploding the block and then copying components.

Autocad Object Count + Curve Length. We have an autocad file & we need to count unique objects inside this file + measure length of curves. To run the Lisp. Jan 12, 2006  AutoLISP became Visual LISP with object-oriented ActiveX objects, so the changes are significant. Get the Code Download the ALIGNIT.LSP and ALIGNIT.DCL files from Cadalyst's CAD Tips site and save them in AutoCAD's Support directory. Now you have the solution to count and locate entities in AutoCAD. Click To View Count & Highlight any AutoCAD entity. Multi-click image above to view software. Type “ALL” and you´ll get a count of all objects sorted by layout tab and the total quantity. You´ll see all the highlighted entities on the current layout tab.

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Cadalyst

An updated solution for aligning objects in AutoCAD 2006.

Autocad Lisp Count Objects

This month's request came from Mr. Ronald Getz of Baltimore, Maryland. Getz was using the alignment routine ALIGNIT from 1996, and it no longer works in AutoCAD 2006, so he asked if I could update it.

The AutoLISP Solution is ALIGNIT.LSP and ALIGNIT.DCL, which allows the user to align any number of objects to a selected object datum in a single command. ALIGNIT is enhanced to include all of the AutoCAD drawing objects, including those that have appeared in the last ten years. In the last decade, lightweight polylines, ellipses (they used to be polylines), splines (formerly a type of polyline) and multiple line text all have appeared. AutoLISP became Visual LISP with object-oriented ActiveX objects, so the changes are significant.

Free Autocad Lisp

Get the Code
Download the ALIGNIT.LSP and ALIGNIT.DCL files from Cadalyst's CAD Tips site and save them in AutoCAD's Support directory. Use the Appload facility by selecting Tools / Load Application, and then select the ALIGNIT.LSP program from where you stored it.

Some of you have emailed me recently because you could not find the code from the AutoLISP Solutions online. Many of the more recent routines are available in the AutoLISP Solutions link on the Get the Code page of our Web site. The older routines are still available as a general download for the months of the earlier years, although there is no specific mention of AutoLISP Solutions or its predecessor, the CAD Cookbook, in the listings. If you still can't find what you want, please contact me using the links at the end of this column.

How to Use the ALIGNIT Code
I have tested the code in AutoCAD 2006 using a variety of drawing objects (figure 1). These objects include lines, arcs, circles, polylines, ellipses, splines and block references, and the code should work for all of the drawing objects that AutoCAD has to offer.


Figure 1. A variety of drawing objects ready for alignment.

After you load the code, the system prompts you to enter ALI to start the program. To see this prompt, you may need to set your Command window size to three lines by dragging the Command window splitter bar appropriately. If you are using AutoCAD 2006, and you are not using the Command line area, you can still just enter ALI to start. After you enter ALI, you will see the Entity Alignment dialog box (figure 2).

The dialog box has choices for top, bottom, left and right. After you make your selection, you are prompted to select a single fixed entity, followed by a prompt to select the entities you want to align to the fixed entity. For example, if your selection was top, then all of the entities selected will have their y coordinates changed to match that of the topmost point of the fixed entity. Figure 3 shows the result of aligning some of the entities with the right point of a spline entity.


Figure 3. The result of selecting the right alignment choice.

Autocad Lisp Count Objects

The dialog box is displayed again so that you may make any other alignments. To terminate the alignment session, click the OK button in the dialog box.

Note that the multiline text objects are contained in a rectangular frame that may extend beyond the boundaries of the actual text, and the alignment of these objects uses the extremities of the rectangular frame. For example, if the bounding rectangle has some space to the right of the text, it may appear that the text is not aligned correctly on the right side.

Programming Notes
The program was written in AutoCAD 2006, and it was tested only in AutoCAD 2006, although it should work in versions back to 2002. ALIGNIT.LSP starts as usual with my error handler and system variable functions. The function ALIGNIT is the dialog box driver function that provides the choices for top, bottom, left and right. This function is similar to the original 1996 code but with the addition of a call to the DRAW-IMAGE function which creates the image of a series of circles and lines in figure 2. This image replaces the use of a slide. The function AL_MOVE is called with a status code indicating which alignment option was selected.

AL_MOVE uses an object oriented approach to initialize selection sets before calling the AL_SELECT function that returns a list of the selected fixed entity and a set of objects to be aligned. I retained the use of the CAR-FUNC variable from the previous code to select the appropriate move direction top, bottom, left or right, as shown in the following code segment.

The CAR-FUNC variable is subsequently used to substitute for any of the four functions: CAR, CADR, CADDR or CADDDR in the following.

The two instances of CAR-FUNC in the above return the x or y coordinates of the fixed and the movable objects that correspond to their respective top, bottom, left or right orientations. The first line in the segment of code above obtains the fixed object coordinate, and the movable object coordinates are acquired in the repeat loop. The list of top, bottom, left and right coordinates is returned by the function XYVAL for each object in turn as indicated in the calls to CAR-FUNC above.

The AL_SELECT function returns a list containing the fixed entity name and a selection set of objects to align with the fixed entity. The fixed entity is selected with the traditional ENTSEL function, but the movable entities are selected using the object oriented SelectOnScreen method as in the following code segment.

Length

Here, a while loop is used, and a test for a zero count of objects ensures that objects are selected.

The 1996 version of this routine included individual functions for each of the drawing object types so that the program could calculate the extreme positions of top, bottom, left and right for each of the entities. The more modern Visual LISP has a wonderful method GetBoundingBox that, as its name implies, produces the lower left and upper right corners of a bounding box for any of the AutoCAD drawing objects, so in one line of code, the single function XYVAL obtains these values. The function is shown here in just a few lines of code that replace more than three pages of code from the earlier version of ALIGNIT.

Lisp Count The Number Of Elements In A List

Not only is this much shorter, but every drawing object is included with no exception. That is what I call progress!

As always, I look forward to receiving your requests for AutoLISP Solutions. Contact me using the links below.

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Autocad Lisp Commands

;Tip1504: ELEMS.LSP Freeze Elements (c)1999, Pawel Lewicki
(defun c:ELEMS (/ odp count ss s1 dxf old-name xd appl)
(setvar 'cmdecho' 0)
(setq appl 'ELEMS')
(if (not (tblsearch 'appid' appl)) (regapp appl) )
(initget '? ON OFF Freeze Thaw Lock Unlock')
(setq odp (getkword 'n?, ON, OFF, Freeze, Thaw, Lock, Unlock : '))
(cond ( (= odp 'ON') (RESTORE-LAYR 'ELEMS-OFF') )
( (= odp 'Thaw') (RESTORE-LAYR 'ELEMS-Freeze') )
( (= odp 'Unlock') (RESTORE-LAYR 'ELEMS-Lock') )
( (= odp 'OFF') (CHANGE-LAYR 'ELEMS-OFF') )
( (= odp 'Freeze') (CHANGE-LAYR 'ELEMS-Freeze') )
( (= odp 'Lock') (CHANGE-LAYR 'ELEMS-Lock') )
( (= odp '?') (ELEMS-INFO) )
)
(princ)
);defun
(defun ELEMS-INFO ()
(foreach layr-name '('ELEMS-OFF' 'ELEMS-Freeze' 'ELEMS-Lock')
(setq ss (ssget '_X' (list (cons 8 layr-name)) ))
(if ss (princ (sslength ss)) (princ '0') )
(princ (strcat ' elements on layer ' layr-name 'n') )
)
)
(defun CHANGE-LAYR (layr-name)
(setq ss (ssget))
(if ss (progn
(command '_layer' '_n' layr-name (strcat '_' odp) layr-name ')
(setq count 0)
(while (setq s1 (ssname ss count))
(setq dxf (entget s1))
(setq old-name (cdr (assoc 8 dxf)))
(setq xd (list (LIST -3 (LIST appl
(cons 1002 '{')
(cons 1003 old-name)
(cons 1002 '}')
))))
(setq dxf (subst (cons 8 layr-name) (assoc 8 dxf) dxf))
(setq dxf (append dxf xd))
(entmod dxf)
(setq count (+ 1 count))
)
));if
);defun
(defun RESTORE-LAYR (layr-name)
(setq ss (ssget '_x' (list (cons 8 layr-name)) ))
(if ss (progn
(setq count 0)
(if (= layr-name 'ELEMS-Lock') (command '_layer' '_Unlock' layr-name ') )
(while (setq s1 (ssname ss count))
(setq dxf (entget s1 (list appl)))
(setq xd (car (cdr (assoc -3 dxf))))
(setq old-name (cdr (nth 2 xd)))
(setq dxf (subst (cons 8 old-name) (assoc 8 dxf) dxf))
(setq dxf (reverse (cdr (reverse dxf))))
(entmod dxf)
(setq count (+ 1 count))
)
(if (= layr-name 'ELEMS-Lock') (command '_layer' '_Lock' layr-name ') )
))
(princ count) (princ ' elements') (princ)
);defun
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