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Points for tangents to two circles

NH
nop head
Sat, Jul 22, 2017 2:04 PM

Yes I think you generate the same shapes but with different starting data.

On 22 July 2017 at 13:41, irevdev irevdev@protonmail.ch wrote:

I may be doing something similar  here
<https://github.cohttps://github.com/Irev-Dev/Round-Anything/blob/master/
polyround.scadm/Irev-Dev/Round-Anything/blob/master/polyround.scad>
but in reverse? Finding the tangent points for two lines and a circle.

http://forum.openscad.org/file/n21898/PolyRoundexample1.png

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Yes I think you generate the same shapes but with different starting data. On 22 July 2017 at 13:41, irevdev <irevdev@protonmail.ch> wrote: > I may be doing something similar here > <https://github.cohttps://github.com/Irev-Dev/Round-Anything/blob/master/ > polyround.scadm/Irev-Dev/Round-Anything/blob/master/polyround.scad> > but in reverse? Finding the tangent points for two lines and a circle. > > <http://forum.openscad.org/file/n21898/PolyRoundexample1.png> > > > > -- > View this message in context: http://forum.openscad.org/ > Points-for-tangents-to-two-circles-tp21782p21898.html > Sent from the OpenSCAD mailing list archive at Nabble.com. > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >
D
droftarts
Sat, Jul 22, 2017 11:25 PM

Nice! Though your link is horribly malformed; should be  here
https://github.com/Irev-Dev/Round-Anything/blob/master/polyround.scad

I like that you can define the point, and then radius from that; the other
script is a bit painful, as you have to offset all the points, as the radius
grows out from the point. This has advantages in some circumstances, but can
cause headaches in others! It's good that there are two options now.

Ian

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Nice! Though your link is horribly malformed; should be here <https://github.com/Irev-Dev/Round-Anything/blob/master/polyround.scad> I like that you can define the point, and then radius from that; the other script is a bit painful, as you have to offset all the points, as the radius grows out from the point. This has advantages in some circumstances, but can cause headaches in others! It's good that there are two options now. Ian -- View this message in context: http://forum.openscad.org/Points-for-tangents-to-two-circles-tp21782p21906.html Sent from the OpenSCAD mailing list archive at Nabble.com.