Cannot create a network surface with error code 98024

[Anonymous]

Hi all,

I'm a complete rookie on AutoCAD. So please bear me if this question is silly. I'm trying to create a network surface with the irregular shapes of polylines (as below). And I kept getting Error code 98024 and cannot create a network surface. I check multiple times for the end and intersection points to make sure they connect the plines. Not sure what's going on and I found no information about code 98024. Any suggestions would help?

@leeminardi @R_Tweed 

[Patchy]

Look at the prompt, you don't have any curves.

[Anonymous]

Hi Patchy,

Thanks for the reply. When I use the network tool, I can choose the edges and the polylines in the center in both directions. I suppose that if I don't have any curves, it won't let me choose those lines. Do have any other suggestions?

[Patchy]

Extract the points and triangulate to get the surface?

[R_Tweed · Accepted solution]

Based on your shapes I'm not sure I would use network, as the modeler wants to curve and smooth the surface both ways.  I would recommend  using loft with successive sections to define your surface.  Another option would be to use drape, although I'm not sure if that is available to straight Autocad.  See attached cad file.

[Anonymous]

Thanks! I ended up using loft with several additional proxy lines for the shape. But it gets work done.