AutoCAD Visual LISP / AutoLISP :: Polyline Z Values Not Being Returned By Vla-get-coordinates
Sep 8, 2011
I have a 2 point LWPOLYLINE that has the following coordinates at its end point when I 'ID' the point.
Command: id
Specify point: end
of X = 709369.3214 Y = 7153039.9690 Z = 269.2143
However if I use..
(vlax-safearray->list (vlax-variant-value (vla-get-coordinates (vlax-ename->vla-object (car (entsel))))))
I get this
(-450567.0 269.288 -450570.0 269.214)
and if I 'dump' the object..
; Coordinates = (-450567.0 269.288 -450570.0 269.214)
; Document (RO) = #<VLA-OBJECT IAcadDocument 09855674>
; Elevation = 7.17399e+006
I don't have a clue where the '-450567.0' is coming from.
I'm in Model Space in 'World' UCS, and I'm confused.. why does the 'ID'd' value not reflect whats going on when I use the vla-get-coordinates approach.
There are many other LWPolylines within the same model that behave normally.
I've attached the drawing (I think!)
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Mar 6, 2013
I got a new work and get it done in the next 2 days, but first I need to do this... from a text file (or excel file, I got both) I got 3 columns, 1 one for node number, and 2 other for X and Y coordinates for each node.
So from that file I need to insert into autocad the node numbers as text (using the current style and height) at the point specified by the other two columns, that are the X,Y coordinates which will be the insertion point of text..
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Jan 5, 2012
I have a short lisp program that returns either a T or nil, what I want is to shell an *. Exe file if nil is returned whilst T is engorged and AutoCAD continues?
to give some better example im trying to get autocad to launch an exe i have created if the ctb is missing the lisp snippet i have for detecting a ctb is (and tested) as follows;
(findfile (strcat (vla-get-PrinterStyleSheetPath (vla-get-Files (vla-get-Preferences (vlax-get-acad-object) ) ) ) "\" (vla-get-StyleSheet (vla-get-ActiveLayout (vla-get-ActiveDocument (vlax-get-acad-object) ) ) ) ))
now i want to capture if it says nil so that it activates the EXE file i have created to do additional stuff...
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Jul 18, 2013
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 attached a jpg file for explain much better
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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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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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Feb 1, 2012
Is there anyway to use LISP to list the x,y coordinates of a pline?
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Dec 7, 2013
I am looking for a method to export all the GPS coordinates which have been assigned to each point along with the properties of that point to an excel csv. In our drawings, there are multiple columns and each column has four points and each point has X,Y,Z coordinates. I want to export all this information to an excel sheet.
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Dec 5, 2013
I want to get the minimum and maximum x, y coordinate values of selected lines. In other words, i want to find the top, bottom, left and right edges of a set of lines.
Is it possible to achieve this with a lisp code?
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Jan 8, 2014
I have created a circle from 3topo points. Im having difficulty getting accurate elevation (z) of the center of circle (pile representation) via cad polyline listing. im getting same "z" all through out which in fact is not.
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Jul 29, 2005
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:
Sum--------Item
128 RP
389 TD1
2389 SP4
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Jul 17, 2013
Lisp or lisp code for sum attribute tag values and paste result to an another attribute block tag?
i attached jpg for explain to what i want to do .
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Mar 19, 2013
I need to draw a table with point number, easting, northing, elevation for a lot of points and need a lisp to read the xl spreadsheet and draw the table.
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Jul 14, 2012
I'm writing function which will facilitate user to offset dimension. After enter command, he select dimension and select point near one of dimension's arrowheads. Then I'm calculating new XLinePoint1 or XLinePoint2 and replacing original.
I have everything done. I thought ... The problem is when user firstly create AlignedDimension and after that he create RotatedDimension by using continous function. After that XLinePoint1 and XLinePoint2 are not parallel to the DimLinePoint (look at image).
How can I get coordinates of points selected in red rectangles?
I know that one is specified as "dimension line defining point" but what about second? How can I get its coordinates? Or maybe there is other way to get this point?
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Oct 21, 2013
I recently wrote a lisp routine that was supposed to get the 4 coordinates of a rectangle (LWPolyline). It worked fine in *MY* tests. But when someone else ran it, the routine operated as though the order of the points had been rearranged.
How can I get the points AND the order in which they belong?
Here's a sketch to show you what I mean. As part of my troubleshooting, I had a lisp routine draw a new pline using the points gathered by my first routine. The result of that on the left. On the right is the result of that when someone else runs the two routines.
Here's the code I used to get the points.
(defun getplinepointlist(ename)
(setq ent(entget ename))
(setq ptlist (list))
(while (setq pt(cdr(assoc 10 ent)))
[code].......
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Oct 26, 2012
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.
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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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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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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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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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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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Jul 16, 2013
I am having nearly 1000 drawings where I need to change the title block in a new format.
I am stuck up in moving all the entities in cordinates 15,280 (upper point) and 205,55 (lower Point) to 275,294 (upper point and correspoing lower point.
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Oct 17, 2011
Is it possible to obtain a list of coordinates for view ports (with dxf codes or otherwise) similar to obtaining a list of (assoc 10) for polylines?
I'm aware I can get the center, width and height from the dxf codes, but what about for clipped view ports with irregular shapes?
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Nov 30, 2012
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
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Dec 15, 2011
can do a routine that zooms into a coordinate, based on input. So for 1A, it would zoom into the coordinate for 1A.
1A = 1,1
1B = 1,2
1C = 1,3
1D = 1,4
I will try to attempt one shortly and will post it within 1 hour.
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Mar 5, 2013
I have few co-ordinates in notepad like mentioned below. How can i create polyline using read-line function in auto lisp.
x y
0.0,0.0
2.0,0.0
2.0,1.0
0.0,1.0
2.0,0.0
4.0,0.0
4.0,1.0
2.0,1.0
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Jun 17, 2012
I need to wright a routine in autolisp that selects all 3Dpolylines with the same vertex Z value.Qselect as no transparent mode and filter doesn't work.
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Aug 24, 2011
Here's my situation:
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.
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Jan 3, 2012
how to extract value X Y Z of point p3 p4
(defun c:test ()
(vl-load-com)
(setq actdoc (vla-get-ActiveDocument (vlax-get-acad-object)))
(setq objm (vla-get-ModelSpace actdoc))
(setq obju (vla-get-Utility actdoc))
(setq oldhigh (getvar "Highlight") oldsnap (getvar "Osmode") oldblip (getvar "BlipMode") oldecho (getvar "Cmdecho") );setq
(setvar "Highlight" 0) (setvar "Osmode" 517) (setvar "Cmdecho" 0) (setvar "Blipmode" 0)
[code]....
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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.
(DEFUN c:GFOR (/ ATTLST REVBLK CNT CNT1 BLK RBLK ATTVAL ATT REV#)
(SETQATTLST(LIST "R#" "INIT" "DATE" "DESC")REVBLK(ssget "x" (list (cons 0 "INSERT") (cons 2 "REVISION")))CNT0CNT10 )
(vlax-ldata-put "dict" "RevTotal" (BLKCNT "REVISIONS")) (FOREACH BLK REVBLK (SETQ RBLK (ssname BLK CNT1)) (setq ATTVAL (mapcar '(lambda (x) (vla-get-TextString x)) (vlax-invoke (vlax-ename->vla-object RBLK) 'GetAttributes))) (foreach ATT ATTLST (SETQ REV# (STRCAT "REVISION" (1+ CNT)))
(vlax-ldata-put "dict" REV# (member ATTVAL)) (setq CNT (1+ CNT)) ) (SETQ CNT1 (1+ CNT1)) ) (PRINC))
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Dec 16, 2011
I often have DXF files that contain very many short (10 digits or less) instances of text, and only a few long instances of text (11 digits or more)....
I would like to use AutoLISP to delete all of the short text in my DXF file, but leave the longer text.
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