Join Chris Reilly for an in-depth discussion in this video Representing 3D geometry with polygon meshes, part of Learning Grasshopper.
…We talked in a previous video about NURBS surfaces, which are defined by…a mathematical formula that combines information about things like degree,…control points, and…other data to form extremely accurate representations of virtually any shape.…Now, you're probably already aware that there's an additional way of…representing 3D geometry, and that's with polygon meshes.…Grasshopper has many different tools for generating and analyzing polygon meshes…and these can be found under the Mesh menu, in the Component Panel.…Let's talk about some of the differences between NURBS surfaces and…polygon meshes, as we look at some of these components.…
In the example file, we have a couple of instances of similar NURBS surfaces and…polygon meshes.…Let's start with this surface, at the origin.…The NURBS surface here is one single entity in Rhino and…I'll turn on the control points here using the Points On command and…I can see that the control points in the middle of the surface are raised above it.…And it's the weight of those control points that actually pulls that…
- What is Grasshopper?
- What's an algorithm?
- Setting input data
- Using data matching
- Looking at mathematical and logical functions
- Analyzing curves and surface data
- Working with transformations
- Manipulating the Data Tree
Skill Level Appropriate for all
2. Working in Grasshopper
3. Math and Logic Functions
4. Curves and Surfaces
6. Data Tree
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