Tangent to two circles

Hi - i have two circles with a point equidistant between their centers. Im trying to draw a line through the point which just touches the two circles - see attached.

two circles

It seems that this should be easy but i cant work it out - any guidance would be appreciated!

Please see first the results coming out of the search tool and send a screenshot of what you tried if it does not work:
https://forum.dynamobim.com/search?q=tangent

Maybe this can be something? Just basic pythagoras and I guess you will have to figure out some list managment on the end here.
image

Pyth

3 Likes

The best way to learn is to try…

Many thanks Jostein - I wasn’t aware of the ‘geometry intersect’ node which is the bit I was missing.

You have two nodes which are a different colour to the rest - are these creating hidden geometry? How did you do that?

Please see here:
http://dynamoprimer.com/en/03_Anatomy-of-a-Dynamo-Definition/3-1_dynamo_nodes.html

Thanks!