Use the Fillet command.
also check the following commands
_connect
_curveBoolean
_filletCorners
if both replies do not help give us more info what you re after / post a file / a sketch
thank you for helping , i want the four lines or even more to be filleted at once but i cant get to the logic that does it , first i am thinking that they should be shattered at intersections and then joined as a polyline but even this disnt work so i thought of filleting them after joining them as one shape but this also didnt work
fillet will work for two lines at a time or do you mean something else?
do you want a grasshopper or a vanilla rhino command solution.
check the commands i posted above:
Exactly, Fillet will work between two curves. If you want to fillet all corners of a closed polycurve at once, you can use FilletCorners. See the online help page.
Hi Mohamed -
I see that you didn’t categorize your post when you created it. Is this a Rhino question or a Grasshopper question?
Always post the relevant .3dm or .gh file when asking for help.
-wim