topic Re: Construction of a given radius circle tangent to the two in Modeling

Construction of a given radius circle tangent to the two lin

johanes — Fri, 13 Nov 2015 12:57:36 GMT

Someone asked me this question: how to build a circle with a given radius, tangent to two concurrent straight, flush, some?
At first sight the problem seems simple, but try and tell me some how.

Re: Construction of a given radius circle tangent to the two

Dontknow — Fri, 13 Nov 2015 14:21:59 GMT

Which ArchiCAD version are you using?
Two concurrent straight are two line crossing each other?

Re: Construction of a given radius circle tangent to the two

vistasp — Fri, 13 Nov 2015 14:43:13 GMT

johanes wrote:
Someone asked me this question: how to build a circle with a given radius, tangent to two concurrent straight, flush, some?
At first sight the problem seems simple, but try and tell me some how.

Does the tangential method not work for you? Haven't used it myself (and don't have AC in front of me) so not sure if the third point can be a radius by simply typing "R" before input.

http://helpcenter.graphisoft.com/guides/archicad-19-int-reference-guide/documentation-2/drafting/lines/drawing-arcs-and-full-circles/

EDIT: Just tried and it doesn't work that way.

Re: Construction of a given radius circle tangent to the two

Anonymous — Fri, 13 Nov 2015 22:21:56 GMT

Is this what you are looking for?

Fillet the two lines at the radius of your circle. Move your circle over the arc and re-intersect the lines.

Doug

Re: Construction of a given radius circle tangent to the two

Anonymous — Fri, 13 Nov 2015 22:44:28 GMT

This works too.