AutoCAD Visual LISP / AutoLISP :: Get Last Point Picked On Circle?
Sep 2, 2013
how can you get the last point you picked on a Circle because I was going to run the TTR and use the tanget command and have it exit and I need to get the point I pick on the circle
You have a dwg with multiple sets of different blocks and a circle you want to place on the insert point of each set blocks.
You select the circle then select one of the blocks in the set and the circle is placed on the insert point of each of the blocks in that set. It would save time from doing it manually and save on mistakes.
I was looking for a post on the subject of line and circle intersections and found one that Bill Z had posted. I decided to incorperate one of the replies into my own code. In particular Luis Esquivel's code. With some minor modifications I was able to add the onseg argument that extends intersection points for the line to the circle. I also modified it to return only one point or two points depending on the line and circle supplied and the onseg argument. It seems to work great.
; test function (defun c:go ( / ) (ed_init) (while (or (not (setq ent (entsel " [code].....
Can a AutoLISP command be written to read an attribute in a block and draw a circle with the attribute as the diameter using variables? The appilcation is taking the diameter of a tree trunk (the attribute), multipling by 12, and drawing the canopy circle on hundreds of those blocks. So the circles drawn will vary in size.
Not sure how this could be set up, i'm not familiar with LISP writing at all.
1) Read block, single, mulitple or definition?
2) Read Attribute
3) Varaible of attribute, (attribute is an inch measurement...it needs to be multipled by 12 to get feet for final use as circle diameter drawn)
4) Draw circle, variable, with diameter coming from attribute variable (attribute in inches that is multipled by 12)
5) Center point or circle to be block's base point
I have a window schedule lisp routine that places a 6-sided polygon around text that label each window. I want to change the code so that its a circle instead of a polygon. Here is the code line that needs to be modified:
I'm trying to find acceptable point values to feed to the vlax-3d-point function for a vla-addmtext function. With vanilla lisp I just provide the point as x y = "7/32" "2-3/8". So I assumed that I could drop a 0 in for the z like: (VLAX-3D-POINT "7/32" "2-3/8" 0).
Then I thought I was going to be tricksy and try (vlax-3D-point (getpoint)) believing that I could pick the point and get what I need to feed the function, but yet again, no deal. The command line gave me:
node of #<variant 8197 ...>
Nothing I can use in my code. So how do I find the point in a format that vlax-3d-point will like?
I'm trying to change a routine i just wrote that draws 3d pipes. I wanted to make it so that when a user selects the beginning point and ending point of the pipe, the LISP changes the ucs to that vector, draws the circle at the beginning point and extrudes it to the second point.
It actually works great except when the ucs changes, so do my user points because of teh origin change. Is there a better way I might get this to do what I wnat it to?
(setq ip (getpoint " Pick First Point:"))(setq ep (getpoint " Pick Second Point:"))(command ".ucs" "za" ip ep)(setvar "osmode" 0)(command ".circle" ip "d" od)(command ".extrude" (entlast) "" (distance ip ep))(command ".ucs" "w")(setvar "osmode" oldsnap))
know a lisp routine that would insert a block @ a specific point on an arc? For instance if I have an arc that has a radius of 20'-0" & I want to insert a block at a set distance from the end of the arc.i could probably use the divide or measure command but I was hoping I could do it with lisp. I would also like to be able to move the object along the path of the arc at a specific distance.
I would like a lisp routine that can extract and export the x, y, z coordinates of all the points in a drawing into a text file so I can use the same in excel.
I have a small app to create, related to point clouds.
I know VisualLISP pretty well, definitely well enough to accomplish the task.but...I can't figure out how to retrieve information on the point cloud's clipbox using lisp.
I know a little VB.NET; I took a one-semester class at the JC, two years ago. It's going to take time for me to get ramped up enough with VB to do this job, so I don't really want you to tell me the only way to get to the clipbox is through vb.
way to retrieve and modify a point cloud's clipbox with VisualLISP?
I need a lisp that creates a polygon of N points, so to enter a only the distance between these points, after choosing N points in the drawing for approximately creating polygons.
I need a routine that inserts a point at the insert point or block named "Insert_Point" at every block in the file. The routine could use the current layer, which would be set prior to starting the routine. If it could request the user for the PDMode value and PDSize that would be great too. This will assist me in creating block libraries.
I am writing a routine that will place a piece of text at a specified point along a polyline. My problem is to determine the angle for the text. It needs to be the same as the segment of the polyline that it falls on. Just can't get my head around how to get that angle?
I can get a list of the vertex point of the polyline, but how do I determine the segment the point falls on?
I'm wondering if there is a lisp possible to measure area's by pick point (as in bpoly). This little feature exists in Microstation so i was looking for something similar.
Is it also possible if this lisp can measure areas from an external reference (dwg, dxf, dgn, shp etc..)? I'm kind of new to AutoCAD in that sence.
How can I find a block with a specific name and get what the coordinates are? What we have is our Bill of Material is attributed blocks. I am attempting to change the first one. Well all of the lines that list the parts are seperate blocks with the same name. Now the Top Line of the Bill of Material is a different named block. If I can find the coordinates of this block I can then select the first line to do what I need to.
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'm creating the following macro:- (defun C:BK () (command "_BREAK" PAUSE "_F" PAUSE "@" )(princ)) to add to a shortcut key lisp file and then I want it to repeat... How do I make it repeat?
I want it to do the same as this:- *^C^C_break \_f @ but as a shortcut key in a lisp format.
The good news is that, if I were righting a routine that locks up AutoCAD, I'm finished. The bad news is that I'm not.
The code below is the portion of a routine where I have the user select 2 points and then pass those points to the Zoom command and the M2P osnap. The problem is that, when the Mid Between 2 Points osnap tries to use the first point, it returnns an "Invalid point" message, enters a loop and locks ACAD.
(defun C:ZC () (setq PointOne (getpoint "First point of M2P ")) (setq PointTwo (getpoint "Second point of M2P "))