Edit mesh or NURB

Rhino
1

I’m not sure what the ground surface is and therefore I don’t know how to edit it - I want to flatten it. Can anyone help me please? thanks

Screenshot 2024-06-15 at 15.46.15
Screenshot 2024-06-15 at 15.46.151866×1364 820 KB

I can’t upload the file…

2

Hi -

When you select that, the type will be shown in the Properties panel.

At any rate, it looks like a surface. You can select points and use SetPt to flatten this.
-wim

3

its an open mesh and setpt selects everything - just want to flatten a small part.

4

Why don’t you try ‘Drape’?
‘Drape’ can make surface which is really similar to your mesh.

I hope this can help you

5

Use MeshSplit to separate the part of the mesh you wish to flatten.

Or use MeshTrim to remove the part of the mesh which you want to flatten, and then replace it with a flat surface.

Be aware that large meshes may require a long time for MeshSplit or MeshTrim to complete.

6

Only select the points in that small area and use SetPt on those.
-wim

1 Like
7

it won’t let me select points

8

this worked but left a massive hole in the surface - can’t I convert it to a surface and do it that way…?

9

Hi Panther -

You need to sub-object select the points.
You can either use the Ctrl+Shift keyboard combination when window-selecting, or use selection filters. SelectionFilterVertices will force the selection to only be points/vertices. Remember to clear the selection filter when you are done with the operation - SelectionFilterNone.
-wim

10

can’t I convert it to a surface because I need to render it - I need to add roads, grass, trees etc but its one single mesh atm.

11

Hi -

You can, by, e.g., first converting to a SubD object with QuadRemesh and then to a (poly-) surface with ToNURBS, but surfaces generally are less suitable to represent terrains than meshes are.

You can do all of that with meshes…
-wim

12

How can I do that with meshes and thanks for the earlier help

13

Hi -

The same way as you would with surfaces. If you are getting stuck with texturing, please start a new thread in the Rendering category.
-wim

14

Try either F10 or SolidPtOn

16

thanks - quick q, why isn’t the curser automatically snapping to the edge of the mesh and or the polysurface (buildings)…?

Screenshot 2024-06-18 at 15.40.43
Screenshot 2024-06-18 at 15.40.431870×1554 174 KB

17

it being one single mesh, do I split the mesh and allocate a surface to that mesh that I’ve split…? also, the mesh isn’t as smooth as you’d expect the road to be…

18

please see the message above. thanks

19

I’ve deleted where it is protruding - how do I create a flat mesh surface where there is now a gap?

Screenshot 2024-06-18 at 22.05.57
Screenshot 2024-06-18 at 22.05.571768×1574 350 KB

20

hi, how to I fill in that gap - I can’t create a planarsrf like a surface…? thanks

21

I tried but it looks like this - not good.

Screenshot 2024-06-21 at 20.42.48
Screenshot 2024-06-21 at 20.42.481862×1558 91.3 KB

I’ve uploaded the mesh.