This is a very simple AutoLISP program that I have got for you. With it six lines are drawn and three circles.
This is what you will get when the program has run. You will see the six lines and the three circles.
The AutoLISP Program
Let's get to business right away. You want to see the AutoLISP program that I have got. OK. No more waiting. Here it is.
(defun c:exerc (/ pt)
(start)
(setq ip (getip))
(drwln ip)
(drwcr ip)
(endpr)
)
(defun start ()
(setvar "cmdecho" 0)
(command "zoom" "all")
(setq p1 (getvar "vsmin")
p2 (getvar "vsmax")
ss (ssget "c" p1 p2)
)
(if ss
(command "erase" "all" "")
)
)
(defun getip ()
(setq ip (getpoint "\nInsertion point: "))
)
(defun drwln (ip)
( command "line" ip
(setq ip (polar ip
0
200
)
)
(setq ip (polar ip
(* pi 0.5)
200
)
)
(setq ip (polar ip
pi
100
)
)
(setq ip (polar ip
(* pi 1.5)
100
)
)
(setq ip (polar ip
pi
100
)
)
"c"
)
)
(defun drwcr (ip)
(command "circle" (setq ip (polar ip
(* pi 0.5)
50
)
ip (polar ip
0
50
)
)
25
)
(command "circle" (setq ip (polar ip
0
100
)
)
25
)
(command "circle" (setq ip (polar ip
(* pi 0.5)
100
)
)
25
)
)
(defun endpr ()
(command "zoom" "extents")
(command "zoom" "0.8x")
(setvar "cmdecho" 1)
(princ)
)
(c:exerc)
How The Program Works
You know how I do my AutoLISP programming. First I figure out what must be done by the program. And then I write functions for doing that.
What needs to be done The function
The program starts with a
clean screen START
An insertion point is
entered GETIP
Lines are drawn DRWLN
Circles are drawn DRWCR
The program ends ENDPR
Next Post
In my next post I'm going to talk about all the functions of this AutoLISP program. I'm going to tell you what they do.
| Telling
Others
Do you like what you have read? Do you know other people, that could be interested? Could you tell them about this blog? |
| Comment
In the mean time. If you have any questions. Or you want to tell me something. Feel free to add a comment to this blog. I would love to hear from you. And when you come to me with a comment. I will give a reply to your question or remark. |
| Warning Don't spend a lot of money on AutoCAD Light. It is only for creating 2D drawings and it doesn't support AutoLISP. There is a very similar CAD program. And that is completely free. The name of the program? DraftSight. How to get it? Do a search on Google for “download DraftSight”. And you will find where you can download the program. |
| Only
Create Drawings When your CAD operators don't create the borders of your drawings, a lot of time is saved. You get your drawings much faster. I have created a program that does exactly that. An AutoCAD drawing has been created and the program draws a border around it. If you want to see how the program works, go to YouTube. You'll find the working of the program here: http://www.youtu.be/O8Zy6n9zS8Q Now the AutoLISP program gives you the choice to select the size of your border. You can select A4, A3, A2, or A1. Maybe you already know the size of the border of your drawing. Maybe all your drawings have the size A1. If so. Let me know. That is important. The program finds the proper scale of your drawing. Or do you already know what the scale always is? I can write the AutoLISP program that you want. The price? I will only charge you RM 600.-. That is less than US $ 200.-. |
| You are welcome to publish my article provided you include the resource box with links intact. |
| Resource
Box Jos van Doorn is an AutoLISP programmer and blogger. He is originally from Holland and now he lives in Malaysia. He is the founder of the Make AutoCAD Fast business. Make AutoCAD Fast is writing AutoLISP programs for AutoCAD users. Make AutoCAD Fast created an AutoLISP program for drawing a border around AutoCAD drawings. The program can be found on YouTube. http://www.youtu.be/O8Zy6n9zS8Q Jos is writing a blog. In it are AutoLISP programs with information and it is about Make AutoCAD Fast. You can find his blog here: http://www.makeautocadfast.blogspot.com Maybe you have a question. Or want to tell me something. You can contact me on this e-mail address: makeautocadfast@ymail.com |
| This article may be
freely reprinted or distributed in its entirety in any Ezine,
newsletter, blog, or website. As long as the following resource
box is added: ------------------------------------------------- This article is written by Jos van Doorn. He is an AutoLISP programmer who has helped engineering firms and architects to get their AutoCAD drawings fast, without waiting for hours. You can find more valuable information about his business and AutoLISP at his blog. It is here: http://www.makeautocadfast.blogspot.com If you want to contact him. Go to his blog and leave a comment. ------------------------------------------------- |
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