As you guys can see, I am working on the network of rivers, and buffers of those rivers I am trying to create. But the issue is after polyline offset component to the curves, I use the boundary surfaces component to get the surface of the buffer, but I got the big area enclosed by the buffer which I do not need as you can see in the image. So what I want is just the surface of buffer of the river not the big area enclosed by the network, thanks! The attachments are the screenshot and GH&Rhino files, please give me some suggestion and really appreciate it!
You’ve told us what you don’t want, it is unclear what you do want. As far as I see what you have is the expected result of boundary surface. If finds closed zones from input curves and makes surfaces from the zones. The surfaces in your image are the only closed zones in your curve network. So what are you trying to achieve?
Thanks for your reply, I am sorry that my quesiton is unclear. What I want is the buffer zone of the line( the river network), not the surface enclosed by the network of line. As shown in the image, I have noted with blue text, I just want the line buffer area. Is that clear? Thx again!
Again thanks for your help. It looks good on the image you posted, but I have trouble openning the GH file you sent, can you just tell me what is the component name next to Boundary Surface? I cannot find it on the curve part. thank you so much!
No problem, just a remark on Clipper.
Clipper is working in Integer so double are scaled internally depending on the Tolerance you gave. So it is like it works in Pixel, as you seems to work in meter it will be fastest to no put a tolerance like 0.001 (1 mm). I put 1 m and it seems enough. It is up to you to choose the tolerance that is appropriate to your work.
Not, it’s not clear. What does “buffer zone” mean? If you’re referring to the watershed area that feeds each river(?) then it seems to me you need the mountain ridges between the valleys to define them.
river buffer.3dm (11.4 MB) river buffer.gh (5.3 KB)
