How do you calculate the angle i should rotate...

If images are not shown try to refresh the page. If you like this website, please disable any AdBlock software!

You are currently reading a thread in /gd/ - Graphic Design

You are currently reading a thread in /gd/ - Graphic Design

Thread images: 2

How do you calculate the angle i should rotate the whole circle to place the next circle perfectly touching at a single intersect?

each circle is exactly the same size

>>

I tried it with drawing another circle from the center but it intersects at 2 points.

>jpg related.

>>

>>249559

You have to zoom in to see it intersects at 2 points.

>>

>>249556

https://www.youtube.com/watch?v=j-dce6QmVAQ&ab_channel=Numberphile

>>

>>249564

try again

>>

If you draw a triangle from the center of the big circle to the centers of the two small ones, then it'll be isosceles, and trigonometry tells us that the angle at the top is 2*asin(r/R) where R is the radius of the large circle and r is the radius of the small one. I don't fully understand what you're asking but that should help.

>>

>>249614

the second circle doesn't exist. i want to place it at the perfect spot where it only touches at a single intersecting point.

>>

>>249630

Oh, ok, well that's not too hard with some trig. The angle between lines from the centers of two equal-sized circles with radius r that go to the center of the big circle with radius R is 2asin(r/(R-r))

>>

>>249693

shit. i forgot how to do math like that. i'll ask someone how to use that formula

Thread images: 2

Thread DB ID: 384116

All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.

This is a 4chan archive - all of the shown content originated from that site. This means that 4Archive shows their content, archived. If you need information for a Poster - contact them.

If a post contains personal/copyrighted/illegal content, then use the post's