AutoCAD 2010/2011/2012 DWG Format

[#1]

I want to find the tangent intersection point between 2 circles within certain conditions.

Circle 1 is r: 30 m and is fixed.

Circle 2 is r: 20 m and its position is inside circle 1.

Circle 2 can be moved in a given angle.

The question is: what distance should circle 2 move, to become tangent with circle 1.

[#2]

kansoms wrote:

...The question is: what distance should circle 2 move, to become tangent with circle 1.

Programmatically or drawing?

Henrique

[#3]

Hi,

you can solve that with constraints, look here:

And a drawing is attached also.

- alfred -

[#4]

kansoms,
if it is drawing,
all you need is to do an offset of outer circle with de distance of the radius of the inner circle the
point of intersection between the further circle and the vector of displacement is the center point of
the tangent circle.

hope that helps

Henrique

[#5]

This is wat I was looking for. Why dydn't I think of it???

Thank you very much!