SELTP
One more thing before the AutoLISP program can continue. What is to be drawn: a flat rectangle or a shaft?
It is found out with this function.
(defun seltp (/ tp)
(initget 1 "Flat Shaft")
(setq tp (getkword "\nType: Flat/Shaft: "))
)
The initget function is used. The user is forced to make a selection. It can only select FLAT or SHAFT by entering F or S.
DRWFL
This function is used if the user has chosen to work with a flat rectangle. The three views are drawn. Here is the function.
(defun drwfl (pt lt ht / dt pt wd)
(setq wd (getint "\nWidth: ")
dt (getint "\nDepth: ")
)
(command "line" (setq pt (polar pt 0 10))
(setq pt (polar pt 0 wd))
(setq pt (polar pt
(* pi 1.5)
ht
)
)
(setq pt (polar pt pi wd))
"c"
)
(command "line" (setq pt (polar pt
(* pi 0.5)
(+ 10 ht)
)
pt (polar pt pi 10)
)
(setq pt (polar pt
(* pi 0.5)
dt
)
)
(setq pt (polar pt pi lt))
(setq pt (polar pt
(* pi 1.5)
dt
)
)
"c"
)
)
First there is asked what the width and the depth of the side view and the top view are. You have seen where these sizes can be found.
When these two values are entered the side view and the top view are drawn. For doing that the LINE command is used.
DRWSH
The user has chosen that the rectangle stands for a shaft. Now the three views of the shaft need to be drawn. Here is the function.
(defun drwsh (pt lt ht / pt)
(setq pt (polar pt 0 (+ 10 (* ht 0.5)))
pt (polar pt (* pi 1.5) (* ht 0.5))
)
(command "circle" pt (* ht 0.5))
(command "line" (setq pt (polar pt
pi
(+ 10
(* ht 0.5)
)
)
pt (polar pt
(* pi 0.5)
(+ 10
(* ht 0.5)
)
)
)
(setq pt (polar pt
(* pi 0.5)
ht
)
)
(setq pt (polar pt pi lt))
(setq pt (polar pt
(* pi 1.5)
ht
)
)
"c"
)
)
There is no need to ask for sizes. The height of the rectangle is the diameter of the shaft. The diameter is for the side view and the top view.
One Last Remark
At the end of the listing you find this line:
(c:crtvw)
That is done so that the AutoLISP starts right away after it has been loaded into AutoCAD. Or a similar CAD program.
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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? |
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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. |
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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. |
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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.-. |
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You are welcome to
publish my article provided you include the resource box with
links intact. |
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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 |
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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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