AutoCAD Visual LISP / AutoLISP :: Program To Evenly Space Objects Across Given Distance
Dec 28, 2013
I would like to write some sort of AutoLISP program to evenly space objects across a given distance. I have attached a .pdf file showing what exactly I mean.
I would like the program to enable me to either enter or measure (via the selection of two points) the "z" distance, to enter or measure the "y" distance, and to enter the number of objects, "n". I would then like the program to evenly space "n" objects across the "z" distance.
A program like this is, I have to be honest and say, way beyond my current capabilities.
How can I iterate through and check the object type of all objects in model space? And... then delete them if they are certain types... like lines, circles, polylines, text, mtext, etc?
Lisp routine that divided up a normal square / rectangle room and insert a block at each given point.
At present if the room was to have four lights width ways and three lights length ways we would divide the width by eight to give us 1/2 1 1 1/2 so the lights would be placed on every second point after the divde command (dividing the room by twice the amound of lights needed).
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.
There are times that I have a really long curb polyline that has both line and arc segments. I wish to pick two points along that polyline and have it give me the distance between those two points along the path of the polyline.
Do we have this ability natively? Have I been missing something all this time? Normally I have to make a copy of the original entity, ... break, break, list erase or undo....
I would like to eliminate a mouse click in my program. I use getstring to allow the user to either enter in an integer or a distance used for labeling in a drawing, but I could eliminate the need for the user to then click an option that completes the label if I only knew how to determine if the entry is an integer (such as 5 or 15) or a distance (such as 24" or 36").
I've tried doing a block that automatically updates the X and Y coordinates from its moveable leader. I can get it to work in model space or paper space. But my problem is I want it to work in PS, but update with the MS coordinates through the viewport.
I can get it to update, by LISP, by picking a point and passing the points to the blocks attributes. At the moment I have a LISP when actioned it locks the viewports, activates the viewport, and asks you to select a point. Once selected it de-activates the viewport (going back into layout tab) then asks which block you want to update. Where you now select the block and it updates the coordinates. I.e. manually pick the point in MS, switch to PS and then manually pick the block. Then I have to manually modify the leader to the correct location.
I'm hoping that I can (In PS) move the end of the leader to snap to a position in MS and the coord updates to reflect the correct MS coordinates. I'm thinking that maybe this can't be done automatically and that I maybe can move the leader but I'm not sure how I can do it without running a LISP to update the block?
I'd be happy moving the leader then just running a single command and the leader coordinates updating without having to select the points and the block again.
I've attached the block showing the auto update of the attributes (fields).
Let's say I have a 3D polyline, which I turn into a spline. I then want to determine how closely the original polyline and spline follow each other. How I can check this programmatically? The concern is to find the maximum deviation and its location.
Howto be able to run the check on other types of objects as well: arc, polylines etc.
I have double line pipe drawings but i have to change distances between of this lines in entire drawing and i was thinking that maybe there is a lisp code which can create new double line according to my specify dimensions ...
example :
Distance between lines : 100 mm
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here is what i want to do :
1. select double line
2. specify new distance ( for example 200 mm)
3. lisp will create center line middle of the selected lines ( maybe it can ask me that this center line will be permanently or not )
4. lisp will create new double line from this centerline according to my specific distance
5. new double line layers will be the same with selected old double line
and this lisp has to work for double arc or quarter circles too.
I have a lisp program which will create a cover sheet for my electrical drawings by extracting data from the title block. Once this is done, I manually print the cover sheet.
What I would like is to create the cover sheet, have the lisp program pause, print the cover sheet, then when printing is done, quit the drawing file so the cover sheet does not remain.
I tried several approaches, but the lisp program finishes before the cover sheet prints.
What I was thinking of was in a loop some times I need multiple sets of similar variables but am not sure how many sets I am going to need. I would like to be able to increment the variable names each time the loop runs.
I have an AutoLISP program that hangs up for no apparent reason. I can run the program with an Alert in the loop. The program is a sheet generator, creating a border (insert with attributes), dimensions and MultiLeaders in Model Space, then a new Layout Tab is generated and the new elements are CHSPACEd into the new layout. An Alert temporarily halts the program once the task of a new Layout is created. In this form, the program works as designed. However, if I comment out the Alert, the program hangs up as if in an infinite loop. Also, hitting Escape does not cancel the AutoLISP, I must use Task Manager to end AutoCAD instead. My computer was recently upgraded to Win7 64-bit. I'm running 64-bit versions of software. (AutoCAD MAP 2011).
Have an AutoLisp program that inserts a block with attributes. Been using it forever. Yesterday I ran the program and somehow when the block is inserted, it skips the Y scaling factor. The program should insert a block at a point with a X scale of 19.2, Y scale of 19.2, Rotation at 0 and then four attribute values.
What is happening is the block is inserted at the correct point and X scaling factor, but the Y scaling factor goes in for the Rotation angle (19.2 degrees), the Rotation angle goes in as the first attribute and the remaining attributes are shifted over and the last attribute is missing.Line of code is:
I'm try to write a list to produce a script file!I just want to insert a dwg file in current drawing.back to MS Windows, in case of having [space] in a folder's name, we should use "" marks:
CD "Program Files"; DEL "file 10.txt"; ....
I tried both with and without "" marks but I failed!I pasted part of my code below with result of each case:
In my drawing I have lot of MTEXTS having unwanted spaces in between the text strings.
A lisp to remove space from MTEXT. Here i am attaching sample drawing with MTEXT which is to be modify. Magenta color MTEXT need to modify like yellow color MTEXT.
Is it possible to write a program for cross section by manual input of data like below. Objective is to draw a cross section with grid lines and labels of section data and datum value.
Is it possible to get the output from the MEASUREGEOM command back into an VL program?If I use:(setq angle (command "MEASUREGEOM" "a" line1 line2 "x"),
the value of the angle is displayed on the screen but is not passed back into the program and the variable "angle" is not set.Is there a way that I can set this variable?
I'm trying to create a macro for a toolbar button to open a third party program. Basically we want to open a custom .exe application from a button on the ACAD toolbar.
I'm trying to build a command to replace AutoCAD's "DI" command, to give distance and delta x, y, and z values in decimal and imperial, and keep the angles in XY plane and out of XY plane.
I have code that will set and sae a current UCS to the front of an entity, of course, depending on the viewpoint. This is so, because we need all draft lines in front of 3D solids, such as dimensions, leaders for labels, text entities and so on (the reason for not putting these entities in paper space is another discussion ).
But I'll have on of two problems on numerous occasions:
1. The user forgets all together to run the command. 2. The user will pick the wrong entity that is in the foremost position in that view.
Then I'll analyze the X, Y and Z of both the lower and upper corners, and set my UCS to whatever is proper.
Is there a "LowerCorner" and an "UpperCorner" for all entities. I can't see "VSMIN" and VSMAX" working because the elevation of the returned coordinates is always "0,0"
I am looking for a routine or app to pull existing MS legend symbols (inserted from the block library) from the drawing and automatically place them in a PS legend. Since I don't have a large screen and sometimes miss a symbol before running a test plot, I wish to automate the process.
I am looking for a way to populate a paper space legend with blocks inserted into the drawing for Land Desktop 2005, 2006 drawings.
I also have to replace non-conforming architectural blocks with my own, then build the legend from all drawings tabbed in the drawing file (possibly all xref drawings as well).
I liked your article on 'Selectively writing drawing blocks to any folder using VBA'. I need to brush up on my VBA 6.0 and learn VB.NET. Perhaps your code can be modified to do the task, and this would be useful to many other designers in a further article.
Is there a way to get model space to "display plot styles" through a lisp routine or a script?
i'm currently setting up a whole bunch of custom tool palettes for the company I work for and instead of the icons displaying in their actual colour (at the moment they're green, which doesn't show up very well on the light grey background), I'd rather they show in the plotstyle assigned to the individual dwg's.
call up the page setup manager (while in model space) and click modify, you can then check the radio button to "display plot styles" in the top-right corner. But when you have around 100 - 200 blocks to change, that process can be rather time consuming and cumbersome!
Is this something that is possible? Basically I have an excel file with sample data that comes coded (red background for fail, Green for pass) Then we transfer that into halos on a DWG. got a routine to count the halos in a DWG. Now I was thinking it would be nice if it compared the number to the excel file to make sure no mistakes were made when placing the halos.
So as I mentioned I've seen rountines to read data in cells but none to count cells based on colour.
