I’m currently working on a project for an architecture studio where we are learning Grasshopper and parametric modelling. My design is a tower with a triangulated exoskeleton/space-frame facade. The form tapers and shifts as it goes up, so the outer structure is irregular.
So far, I was able to create the basic outline of the facade along with a core and floor plates. I have started by creating a rough model of my design, and then turned that into a 3d form using the convex hull 3d, and now I want to triangulate my facade to look like this.
So this is the part that I was talking about. I have the hull3D as my main facade shape; it looks like this, where it is kind of made up of many triangles.
What I am trying to do now is to make the facade of each triangle look like the image I attached earlier. I understand that it will not be the same, as my facade is made up of triangles instead of squares, but I am trying to get as close as possible.
As you can see in the first picture I added, I tried finding the three outer points that make up each triangle, and the midpoint, which I offset from the original curve, but when I try to connect them, each midpoint connects to all the other points, rather than just the three points from the adjacent triangle.
I am not sure what I did wrong, so I am asking for help to fix this issue.
So in this picture, I highlighted what I had as my original facade shape in red, and the offset in blue. I want to turn it into a surface as I want it to be my new facade, but it is not working with me. I am not sure what the problem is and I would appreciate your guidance on this.