Editing patch surface

unhandled

(John Johnson) #1

Hi, I am very new to Rhino and Grasshopper. I created a 6 points surface using patch command in Rhino, but I can’t seems to edit this surface in Grasshopper as there is invisible untrimmed surface. How can I edit the patch surface?


(Pascal Golay) #2

Hello- in Rhino you can make a patch surface with History and edit the inputs to update the patch. Without knowing how you’ve created the patch, it’s hard to say what you should do in GH.

-Pascal


(John Johnson) #3

Thanks for your quick reply. I attached the model below this message. You mean changing the input of Patch command? If I changed it the geometry of the surface with get affected, and as I have a lot more of this surface I tried not to break it and use the command like Loft

Patch.3dm (200.0 KB)


(Pascal Golay) #4

Hello - see the attached file - I don’t know if this gets at what you need, but, open the file, select the red polyline (input to the patch surface), turn on points (f-10 key) and then move the polyline points around- the Gumball is perfect for this.

Patch_History.3dm (136.0 KB)

-Pascal


(John Johnson) #5

So sorry for misleading you. The problem I am facing now is I can’t apply the Patch surface into Grasshopper, as the Grasshopper will detact the “invisible surface”. I attached prinscreen image for your reference, thank you!


(Pascal Golay) #6

Hello - I see - well there is always an untrimmed surface associated with an arbitrarily trimmed face so you can’t escape that - question then is, what are you trying to do in GH that is broken by this? Presumably you need to restrict something to the trimmed face …?

-Pascal


(John Johnson) #7

Hello, I don’t really how to describe so I attached my Grasshopper file for your reference, I will apply Pipe command in Grasshopper at the end to create a structure system. Thank you for your patient.

Patch.3dm (200.0 KB)
Geometry.gh (16.7 KB)