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Thread: Need help asap

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    image.jpgimage.jpg I don't understand how to do it. Help?

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    Quantum Mechanic ReMark's Avatar
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    Start the LINE command and input the coordinates given in the exercise. Something like this....

    Command: L
    LINE
    Specify first point: 1.5,1

    Specify next point or [Undo]: 2.1717,1

    Specify next point or [Undo]: 2.7074,1.75

    Specify next point or [Close/Undo]: 4.5,1.75

    Specify next point or [Close/Undo]: 4.82,1

    Specify next point or [Close/Undo]: 5.5,1

    Specify next point or [Close/Undo]:

    The result of the above should look something like this...

    LetterA.PNG
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    Quantum Mechanic ReMark's Avatar
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    Did you get it figured out? Yes? No? Maybe?
    "I have only come here seeking knowledge. Things they wouldn't teach me of in college." The Police

    Eat brains...gain more knowledge!

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    Not really...

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    How would I find out the answers to the question after I do that?

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    Of course being a LISP developer, I'd have done it this way:
    Code:
    (defun c:test ()
    
      (setq a '(1.5 1)
    	b '(2.1717 1)
    	c '(2.7074 1.75)
    	d '(4.5 1.75)
    	e '(4.82 1)
    	f '(5.5 1)
    	g '(4.1838 4.0711)
    	h '(3.5071 3.81)
    	j '(3.7974 3.3861)
    	k '(3.6304 3.3139)
    	l '(2.8125 2.25)
    	m '(4.2843 2.25)
    	)
      (command "._LINE" a b c d e f g h "c")
      (command "._LINE" j k l m "c")
    
      (command "._TEXT" a "" "" "a" "")
      (command "._TEXT" b "" "" "b" "")
      (command "._TEXT" c "" "" "c" "")
      (command "._TEXT" d "" "" "d" "")
      (command "._TEXT" e "" "" "e" "")
      (command "._TEXT" f "" "" "f" "")
      (command "._TEXT" g "" "" "g" "")
      (command "._TEXT" h "" "" "h" "")
      (command "._TEXT" j "" "" "j" "")
      (command "._TEXT" k "" "" "k" "")
      (command "._TEXT" l "" "" "l" "")
      (command "._TEXT" m "" "" "m" "")
      
      (princ)
      ); end function
    Sure make things simpler when you let the computer do all the work. However, your class instructor may not see it that way!

    And actually there's no need to draw the object since the question is using AutoCAD commands what is the length of line a-h, you could just do this at the command line:
    Code:
    Command: (setq a '(1.5 1) h '(3.5071 3.81))
    Command: (distance a h)
    which could also be shortened to
    Code:
    Command: (distance '(1.5 1) '(3.5071 3.81))
    Your instructor may be okay with this since the question is how far from point a to point h.
    It's deja vu, all over again.

  7. #7
    Quantum Mechanic ReMark's Avatar
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    Quote Originally Posted by aminkovskaya View Post
    Not really...
    What seems to be the problem? You start the line command, and type in the X/Y coordinates as presented in the exercise. So your first set of coordinates are entered on the command line as 1.5,1 then you press the Enter key. After that it is just a matter of entering the coordinates followed by pressing the Enter key as quickly as you can until all coordinates have been entered which should return you to the starting point. That takes care of the outline. Follow this up by restarting the line and entering the four sets of coordinates, in the same fashion, for the inner part of the letter.

    Bill: The OP has trouble understanding how to enter coordinates in AutoCAD and yet you think he/she will understand what to do with the lisp routine? That's a real leap of faith in my opinion.
    Last edited by ReMark; 22nd Oct 2014 at 11:54 am.
    "I have only come here seeking knowledge. Things they wouldn't teach me of in college." The Police

    Eat brains...gain more knowledge!

    I'm now a full member of the Society for the Promotion of Mediocrity in CAD. Standards? We don't need no stinkin' standards! Take whatever advice I offer and do the opposite.

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