AutoCAD Visual LISP / AutoLISP :: Create Closed Polyline And Convert It To Region

Oct 9, 2013

I'm trying to look for a LISP command where i will create a closed polyline with 4 sides in different angles. then convert it to region. 

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AutoCAD Visual LISP / AutoLISP :: Region To Polyline

Feb 17, 2009

For the sake of editing, I sometimes make LWPOLYLINES and convert them to regions so that I can union and subtract and intersect, etc.

then sometimes, like now, I want to work with them like as LWPOLYLINES again.

is there some command I don't know, or some routine or shall I make one?

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AutoCAD Visual LISP / AutoLISP :: Counting Blocks Which Are In Closed Polyline?

Oct 19, 2011

Is there a routine that I could use to count the blocks that are in a closed polyline?  The blocks may have or not one or more attributes.

In a previous session I saw a routine which was counting the blocks which had attributes in them, but it doesn't really work, because some of the blocks dont have attributes.

Also is there a routine that counts the different texts that are in the same polyline?

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AutoCAD Visual LISP / AutoLISP :: Auto Dimension Closed Polyline

Mar 8, 2013

Is there a command or a lisp that will automatically dimension each side of a closed polyline at once? See attachment for image. 

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AutoCad :: How To Convert A Region To Closed Polyline

May 13, 2011

I cant do booleans with polylines, for that I need to convert them to regions which I dislike because I lose edit vertex capabilities right? Also, from a region, how can I convert a region to a closed polyline in one go.

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AutoCAD Visual LISP / AutoLISP :: Block Insertion Point Is Within A Closed Polyline

Oct 11, 2011

I've have code to test if the insertion point is within a closed polygon. But prior to testing the insertion point I use ssget to trim the selection set initially..

(ssget "CW" Pnt_List (list (cons 0 "INSERT")(cons 2 BlockName)))

this requires that the whole Crossing Polygon is visible, so I do a zoom first. This requires time. Is there a way I can do this that does not require the zoom?

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AutoCAD Visual LISP / AutoLISP :: Closed Polyline And Place Mtext With The Room Name And Area In M2

Oct 24, 2013

LSP file i downlaoded from web.it is to use for Area with (m2) and room name. by click polyline.

i want to modify it to use without adding Room Name, just insert area to the drawing.

(defun drtxt (/ rn tx ls vl lt ht lb hb nr pt)
  (setq tx (strcat "Area: "
       (rtos (/ (getvar "area") 1000000) 2 2)
       " m2"
       )         
       rn (getstring "
Room Name: ")

[code]....

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AutoCAD Visual LISP / AutoLISP :: Routine Required To Replace / Place Block On Each Closed Polyline?

Mar 26, 2012

Does any Lisp routine available to batch replace all the closed polylines with an existing block?

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AutoCAD Visual LISP / AutoLISP :: Convert Polyline - Bad SSGET List

Feb 5, 2013

I have a data structure called LayerList in the format [LIST "LayerName" "Linetype" Thickness Color]I then use the following piece of code to go through the structure selecting polylines and converting all polylines on a given layer to the correct thickness

   (foreach layr layerlist
       (setq player (car layr))
              (if (setq ss (ssget "x" '((0 . "*polyLINE") (8 . player ) )))
                      (command "pedit" "m" ss "" "w" 0.15 "")
                      (princ "
No polylines exist!")
      )
   ) 

However all i keep getting is Bad SSGET list value at the command line,

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AutoCAD Visual LISP / AutoLISP :: Convert Ellipse Segment Into Spline Or Polyline

May 3, 2012

Our customer send us drawing with ellipse segments  into.

With Autocad 2008 I bought a plug-in call SplineConvert that did the job perfectly but not compatible with 2013.

Is there any plugin that could replace that tool  ?

Is there any standard ACAD command that could easily do this Job ?

I need a way to make 2 or 3 times per week  this converting on all ellipses of large and detail 2D drawings so no time to offset in and out all those .

I try also DXFOUT in R12 but all the spline are being converted into 3d  polyline making a huge files that froze my PC.

I also try FLATTEN but did not see how it work , the ellipse stay an ellipse.

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AutoCAD Visual LISP / AutoLISP :: How To Create Arc Polyline With Entmake

Jan 4, 2013

I have run into a little trouble in trying to figure out how to create a arc polyline with entmake. I've put together the following and it works great with command "pline". I just want to know how to do it with entmake.

(defun C:22 ()
(setq P1 (getpoint "
Specify first point: ")
P2 (getpoint P1 "
Specify next point: "))
[code].......  

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AutoCAD Visual LISP / AutoLISP :: Reduce Polyline With Multiple Vertices To Single Polyline

Jun 7, 2012

I would like to take all the vertices out of a multiple-vertices polyline so that it reduces to just its start and end points, can this be done?

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AutoCAD Visual LISP / AutoLISP :: 3D Polyline To Polyline To Spline With Max

Sep 21, 2013

Due to modeling purposes, I need to convert a 3D polyline to a spline. What I have been doing is:

- change polyline fit/smooth to cubic from properties
- convert polyline to spline by typing spline -> object
- method -> fit from properties

You can see the original 3D polyline (green) and the resulting spline (magenta) in the attached drawing.When I zoom in and measure the distance between the two entities at different points along them, at some points the perpendicular distance exceeds 5 millimeters, and I want to ensure the deviation remains under 1 millimeter or even less.

I know I can change the knot parameterization of the spline, and this does work at some locations, but the difference increases at others.Why is there a 5.6 mm difference between the spline fit point and 3D polyline vertex, as measure in the attached drawing?

Now, I can go and manually stretch the fit point to coincide with the vertex. Also, I can add fit points between existing ones to drag the spline closer to the original 3D poly.

However, some of my polys are really long, and it is very time-consuming to do this manually while measuring points along the entities to make sure the distance stays small enough.

how to automate this process? For example a lisp that would maybe take the original vertex points, add say maybe 3 (not too many) new ones between them, and then generate a spline while making sure the deviation is less than the set value of 1mm? I am using AutoCAD 2013.

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AutoCAD Visual LISP / AutoLISP :: Divide Big Region On Lines Intersections

Oct 2, 2013

I need a easy way to create a lot of small regions, or divide a big region in lines intersections, or a fast way to pick points inside objects.

Its like that:

imagine that you do 100 horizontal lines and then 100 vertical lines.  Now you have 10.000 squares. i need a fast way to make a region in each one of then.

So its too much trouble to pick points inside each one of then. i need to divide a big region or a fast way to create Plines or objects with the little squares. And i cant use array because they aren t regular squares.

Its something that i do often, its not a one time thing. This is necessary in structure analysis modeling, i export this dwg to a dxf file, that i use on a finite element program.

i never did a lisp before.

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AutoCAD .NET :: Principal Moments Of A Region (or Closed Polyline)?

Aug 29, 2013

I'm trying to calculate the principal moments (and section modulus) of a slection of closed polylines.

On this blog, I read that there are some new classes and functions in the AutoCad 2014 objectARX that can do this.

The one that interests me the most is 'RegionAreaProperties.PrincipalMoments Property'.

However with my limited programming skills, I can't get it to work in vb.net.

I thought is was just a property of a region, but something like 'myregion.RegionAreaProperties.PrincipalMoments' does not work.

With the code I already have I use a selectionfilter to select multiple closed polylines. I can convert these to regions if nescesary. But what is the next step? I can't find any samples of it. Not even in the Autodesk Developer's Guide.

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AutoCAD Visual LISP / AutoLISP :: Creating Two Closed Polylines From One Shape

Jan 4, 2012

I have a series of boxes or polygones that I would like the program to find the 1/2 distance and create two seperate polylines from the one object. 

Example: 

I have a square with pt1,pt2, pt3 and pt4 respectively.  After I have ran the program it would create a diagonal from pt1 to pt3 and join the rest of the lines now to create the one polyline. Also it would do the same to create another exact polygonal shape for the other half. Thus creating two shapes of equal value from one.

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AutoCAD Visual LISP / AutoLISP :: Saving Areas Of All Closed Polygon

Mar 4, 2013

I'd like to get areas from all closed loop polygons of my drawing and save them. 

From my point of view, the function would be to:

- hatch every polygon of my drawing
- for each hatch do
- extract area and put it in an array with the variables (name of polygon  and area).

And then is it possible to save it in a DWG or DXF file in order to reuse these areas by another program ?  

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AutoCAD Visual LISP / AutoLISP :: Get Enames Of Each Polyline

Apr 26, 2013

this is a Offset cutting plane line I want it to be all polylines but I can't get the ename of the end points of the polylines dose anyony know how

(defun ccp (/ pt2)
  (SETVAR "CMDECHO" 0)
  (setvar "angbase" 0)
  (setvar "angdir" 0)
  (command "polarang" 1)
  (setq pt1 (getpoint "

[Code]....

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AutoCAD Visual LISP / AutoLISP :: Sum Of Polyline Lengths

May 21, 2012

Is it possible to determine the sum of the lengths of all of the polylines on a certain layer?  I'm trying to determine the total length of joint sealant on a building's exterior.

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AutoCAD Visual LISP / AutoLISP :: Change Z Value Only On 3D Polyline

Aug 23, 2012

I am using acad 2010. I have a contour generator that uses 3d polylines to make contours. I get depressions or tops where I don't want them. I need a lisp routine that will allow me to adjust the z value only on any 3d polyline. I need to raise or lower the z value at any vertex and repeat if necessary. I don't need to prompt the user- I am the user.

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AutoCAD Visual LISP / AutoLISP :: Set Polyline Elevation

Jul 19, 2013

I create contour line in TOPOGRAPH program, and I import these polylines to AUTOCAD. I have to set elevation for each polyline manually, and I waste a lot of time doing that.

So looking for lisp doing that automatically. I mean, invoke the command, set the first elevation and them select the polylines.

e.g. The first elevation is 530. The next polyline that I select is 531 and so on. 

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AutoCAD Visual LISP / AutoLISP :: Segregate Closed Polylines In Drawing By Area Range?

Mar 21, 2013

I need to segregate closed polylines in my drawing by area range. Ideally, I would input the number of ranges I need.

Then somehow find the smallest and largest pline area to determine the range values (rounding up to a sensble number)

Then with the ranges determined the polylines would be segregated and moved to new layers.

I've been trying to hobble together pieces but with no joy.

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AutoCAD Visual LISP / AutoLISP :: Draw Polyline With Clipping Outside

Mar 7, 2012

is there a way to draw a polyline and have autocad clip everything outside of that polyline and discard it so that i end up with a smaller drawing.  only the information in that polyline, nothing outside of the polyline

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AutoCAD Visual LISP / AutoLISP :: Polyline Width And Fillet

Feb 5, 2013

I've been searching on and off all morning for a lisp routine, without any luck. I'm trying to draw a pline with a pre determined width (5") and be able to draw unlimited line segments then automatically fillet with a pre determined radius (5").

I wrote this generic macro: ^C^CPLINEWID;5;PL;\\;FILLET;R;5;F;P;LAST;  to save SOME time but I want unlimited line segments. Can this be modified or would a lisp be the better route to go?

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AutoCAD Visual LISP / AutoLISP :: Labeling Polyline Areas

May 4, 2011

Code below, for labeling polyline areas

It works great for what i want, with 2 exceptions the text is to small and the label is not inserted at the centroid of the polyline, rather it is placed outside the polyline.

i am able to increase the text style by adjusting the dimscale before i run the command, however it would be good if the program could do that automatically, i would like the text to be about 300 units high, and for the label to be placed at the centroid of the polyline
 
(defun C:AT ( / ss i)

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AutoCAD Visual LISP / AutoLISP :: Divide And Measure Between Polyline

Aug 1, 2012

do you know command or lisp that will do new pollyline between two polyline on 1/3 or 1/4 space between them.

I need sommething that would be faster,know is use measure on pollilines then i draw between horizontall polylines on verteks or point new pollyline and then divide it on 4 or 3 parts.

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AutoCAD Visual LISP / AutoLISP :: Arcs To A Segmented Polyline?

Apr 17, 2012

i.e. one that would apply best fit lines and arcs to a segmented polyline?

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AutoCAD Visual LISP / AutoLISP :: Vertices Of A Polyline Segment

Dec 18, 2011

I have to intersect polylines "POLYLINE" and "LWPOLINE" with a line and get all the angles of all segments of the polyline that are intersected.

To do this I used a loop that monitors all the vertices of each polyline to find the two vertices of the polyline segment that intersects the line. Unfortunately, these polylines have thousands of vertices and the processing done in this way takes too long.

With the vlax-curve-getClosestPointTo I could very quickly find the vertex of the polyline closest to that intersected with the line, but I need to find the other vertex of the polyline segment to determine the angle of this.

Another question: is there a quick function that returns the exact point of intersection of two curves (e.g. A line and a polyline, or a line and a circle?

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AutoCAD Visual LISP / AutoLISP :: Curve From Polyline Segments

Apr 13, 2012

I´m looking for opportunities to can modify a polyline with 4 or more segments in a polyline with arc. I think it´s possible to pick start and end segment first and than all straight segments to will be in arc segments.

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AutoCAD Visual LISP / AutoLISP :: Ribbon Polyline Command

Jul 29, 2013

Creating a ribbon for Partial Customization files in the CUI, and I am trying to setup some buttons for existing polylines for example underground electric and overhead electric. When writing the macro what are some ideas for creating a polyline with the proper linetype for that particular object rather than changing the layer in layer properties dialogue.

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AutoCAD Visual LISP / AutoLISP :: Round Down Area Of Polyline

May 8, 2013

I have a closed polyline that i can add the area to via a field in mtext using the options under area. I would like the area to always be rounded down to the nearest square meter. Is the a way to do this via the acfields.fdc file?

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