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,
I've been twigging around with a selectionset, but no luck. I need to build a ss with several named blocks and a few dynamic blocks which get selected as anonymous. Unfortunately not all dynamic blocks should be selected and I can find no way of either filtering out a list of dynamic blocks to exclude nor any way to campare to a list of dynamic blocks that I want selected. Below is the best idea that I had but if I wrap it into a foreach with an exclusion list, I get an empty selection set returned. (I'm guessing that I need to trim the pairs each iteration and only return the matches instead.)
The other code is long and I'd rather not confuse things; if I do not try to filter out any Unames, then everything works great and fast. Once I add in the "foreach i blklst" the code breaks and I get:
I wonder if I have to check if the "ssget" is empty.
I have a lisp to zoom extents in visible objects on the screen.
My interest is to filter before applying:If I have selected objects, it zooms in these objects. If I'm not have selected objects, continue as it is today, applying a zoom in the visible scene.
The result would be similar to a zoom of "3dsmax" (press the Z key)
Someday the light bulb is going off and I will understand mapcar and lambda. However.....I have a program that reads an excel file sheets. Sometimes the sheet only has 1 column, sometimes 2 or more.
I need to convert the saved values from the sheet to a list with the text spaced evenly. Unfortunately the text lengths vary. I would like a subroutine to pass the list to and return a list of strings with text aligned with padded spaces allowing for the longest text in each column. I am using the new list in a dialog box with fixed_width_font=true (so columns align).
Is there any way to isolate an item in a list for a filter? I'm setting a filter for SSGET and know that I can use the dotted pairs and I know I can use logical comparisions but what I really want to do is filter a single varialbe in the DXF group 10. For example, I'd like to only get entities with a specific Z value in DXF 10. Or even better to filter for a specified range of Y value or X value in DXF 10. If I could write something like (cons 10 (list * * 8.0)) where the asterisks were wild cards, that would do it but I'm not aware of such a wildcard. Is there any way to isolate a portion of DXF 10 in the filter?
I have some strings like the ones below. They are always in the same format. The first line is Cold Water, the second is Hot Water and the third is Hot Water Return.
I want to build a selection set based on whether it is CW, HWS or HWR. Right now I have a routine to retrieve the string by using ENTSEL. In other words if I want to use the line of text for Cold Water I have to select it.
I'd like to be able to window them all and filter the SS for only the string containing CW and conversly HWS and HWR. SSGET function filter.
I have this code that I wrote years ago that I want to update to select two types of civil3d objects and show them selected with grips on the screen. This function works fine
but if I add the extra object like this which I assume is the wrong syntax i only get the second type of objects. Need correct syntax I should be using for selecting more than one object in an ssget statement.
Distinctions between AutoLISP functions ssget and C# PromptSelectionOption method.AutoLISP ssget function is apply a function with no options and does not require an object selection.pre-selected target object should respond to the selection set.
However, and C# PromptSelectionOption, ignoring the pre-selected objects, select the new object is required.using the features of C# Prompt Selection Option expressed AutoLISP ssget do the same in,
I'm having an issue with using the SSGET to select a block so I can move it. I'm changing the UCS to be at the center of the top view in the program(user selects center) and the block is at 0,0,0 after changing the UCS. However when I use SSGET it doesn't select it. So I used:
(setq en(car (entsel " Select a block :")))(setq enlist(entget en))
and it lists the DXF Code of 10 as
(10 15.0893 13.5165 0.0)
How can I then select it if I don't necessarily know where the block is going to be?
If needed: AutoCAD 2013 User using Visual LISP for editing LISP and DCL files Also I have AutoCAD 2011 currently still available for us, but we are using AutoCAD 2013 for 99.9% of AutoCAD use
I have subroutine that retrieves a list of detail numbers in a drawing. Sometimes there are missing numbers. I am looking to find a list of any missing numbers.
Example -
(setq List_DN (list 1 2 3 5 6 7 10 11 12 17))
Missing numbers are - 4,8,9,13,14,15,16
I would like a subroutine to take the List_DN are return the following missing numbers as text
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.
I have a list ("temp.dwg" "temp2.dwg") and would like to add the string "insert text here" into each item in the list resulting in ("insert text heretemp.dwg" "insert textheretemp2.dwg"). how would i go about doing that using LISP?
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.
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.
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.
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
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?
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
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.
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?
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.
