In this tutorial, we'll guide you through the new Grasshopper components introduced in Rhino 8. Our focus is to show you how to fully automate the creation of floor plans, complete with hatches and dimensions, all directly within Grasshopper. Before we explore the newest feature, we will teach you how to create a 3D floor plan from a collection of single straight lines that we will convert into 3D geometry with the help of the Flexibility plugin. You will also discover some other cool components

Rhino Beginner Series: Introduction to 3D Modeling

Rhino 3D Tutorial - Using isocurves and edges for modeling