CIRCLE TANGENT TO THREE LINES??? CANYOU DO IT?
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‎2004-05-21 11:14 AM
I didn't know where to post this question - to Tips and tricks or to Wishes. Or to Wishes never to be...
Every time I need to do it I switch to AutoCAD and copy it back to AC.
So, you can do it in AutoCAD guys...

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‎2013-10-09 06:52 AM
Here's a video of the technique I just came up with for constructing a circle tangent to three lines. I think it's faster than some of the earlier approaches mentioned.
http://www.youtube.com/watch?v=12TegajqE4E
I hope it helps any future searchers


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‎2013-10-09 08:19 AM
Barry.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11
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‎2013-10-09 08:27 AM
Wish you'd weighed in with that sometime in the last nine years, before I made a video

Wonder if I should delete it again? Oh well.

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‎2013-10-09 08:50 AM
It even works for his example with the parallel lines.
I liked the video.
It is interesting to see other solutions too.
Barry.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11

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‎2013-10-12 08:31 PM
This should show the only way i found.. its german and my english is too poor to translate it .., but it could show You the way..
Maybe a real mathematic-GDL-Guru could develop such a thiing...

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‎2013-10-12 08:38 PM
This schould be a little work for a real GDL-guru - not me..
Did someone work on this problem?
here the not really simple geometric methode...
There are som other mathematical methodes from Gauss and Descartes which are higher than my mathematic level - so if someone dit it bevore, i easyly could program a graphical user interface...

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‎2013-10-14 09:01 AM

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‎2013-10-14 09:25 AM

Funny I always assumed that was tangential to 2 lines then pick a third point.
Just goes to show reading the prompt can help - clearly says pick a third point or tangential line.
Mind you I don't think I have ever needed to use this - that is my excuse.

Barry.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11
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‎2013-10-14 02:34 PM


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‎2013-10-15 12:10 AM

can't say I have ever need it either.....