<div dir="ltr">Hi,<div><br></div><div style>I apologize if this has been asked before--I couldn't find it in the archives. </div><div style><br></div><div style>Here is my situation: I have a model (an earth model) that is a box. But inside the box I have layers that represent earth layers. The boundaries of these layers are defined by a set of x,y,z coordinates. This seems like a fairly common starting point for building a mesh, but I don't quite follow from the instructions how to do this. It seems that I need to mesh before I mesh, creating a 2-D mesh of the nodes that define my layer boundary in order to define facets and surface loops. Is this right? Or is there a way to say, "I want this collection of nodes to represent the top boundary of this volume"? </div>
<div style><br></div><div style>Thanks for the help,</div><div style>--Jack</div></div>