Starting Tangent from a Line

[buzzerknocker]

Hi Lisp Guru's...

I've been working on a code to draw circles that start tangent from a line then passes through 2 given points

(There my be something already out there, but I've not been able to find it, however being a novice in lisp, I'm trying to write my own codes and learn as I go, but this has had me stumped for a few months)

 

So I'm a bit stuck, because, I know how to start tangent from a circle in lisp, but I don't know how to start Tangent from a Line

 

Can anyone point me in the right direction on how to do this? 

I think once I get past this point I should be able proceed from there.

 

 

[Jonathan Handojo]

Apollonius Problem Solved

[BIGAL]

Comment removed  Stefan's answer so simple.

 

 

Edited November 11, 2020 by BIGAL

[Stefan BMR]

(command "_circle" "_3p" "_tan")

 

[buzzerknocker]

 Of course.... Thank you.....

I think I've had the "can't see the Forrest for the trees" moment..... Simply over thinking it..

(I say moment, since around Mid August)