how to create circles in the corners of a rectangle

hey everybody,

started working with rhino and grasshopper jusrt a while ago and i am facing a problem i hope someone can help me here, as no one at my university has a clue at all!

i need to create circles in the corner af a rectangle, just as drawn in the screenshot i attached.

i first created a rectangle, split it up into curves so that i get the endpoints, on which i created the circles. but i dont nee the circles located at the corner, they have to be moved a bit into the middle, so that the yellow line, drawn in the screenshot, is just as long as the radius of the circle. thinking about this the whole day, i really appreciate any kind of help!

thanx a lot!!

Attachments:

knochen.ghx, 133 KB
knochen.3dm, 28 KB
screenshot.jpg, 78 KB

Replies to This Discussion

Permalink Reply by Danny Boyes on June 22, 2010 at 8:53am

One solution would be:

This makes use of the fillet component to obtain the desired intersection points and then to create arcs based around these points. If you haven't got v0.7 open the higher res image to see the definition.

Attachments:

Knochen2.png, 82 KB
knochen2.ghx, 201 KB

Permalink Reply by sean-andino konrad on June 25, 2010 at 4:37am

Hey
Sorry for a late reply, i can only use Rhino at university as i dont have it at home!

Thanks a lot for your quick reply!

Permalink Reply by taz on June 25, 2010 at 2:16pm

This would be a bit more compact then what Danny showed:

Attachments:

circCorner.ghx, 139 KB

Permalink Reply by Michael Blase on September 10, 2015 at 12:13am

This looked useful but the diagram and code was 5 years old and "outdated" labels showed up when I tried to load it.

I also found there was a bit of a bug. The "equal" test didn't match every other segment like expected. I found when I ran the output of explode through a panel and then into equals it did work, but that seemed kludgey so I added some rounding which seemed to solve this problem. Maybe there's a better way but I'm kind of new at Grasshopper and find a lot of information (like this) several years old.