Hi Bryan, great timing on this one. This new session really adds some solid substance to the topic after last week’s live session, a perfect follow-up. Thanks for sharing your insights, it’s genuinely appreciated.

Grasshopper Free plugin to use Pollination through your favourite modelling tool and .exe for an easy install on Windows https://app.pollination.solutions/cad-plugins https://docs.pollination.solutions/user-manual/grasshopper-plugin/download-and-install-the-grasshopper-plugin

I was intrigue by your question because you mentioned it first in 'How to Rhino' so I simply put it to Google Gemini to solve it, and here is the answer, maybe that can help: _________________ That is a fascinating and common challenge in computational terrain modelling! You are essentially facing a "reverse engineering" problem: trying to infer the simple, original control points from a dense, derived geometry (the messy 3D contour lines). While I cannot access or directly run Grasshopper for you, I can certainly provide a **viable, high-level computational strategy** using **Grasshopper components** and **Python/C\# scripting** to address this issue. The goal is to simplify the highly redundant data (the dense, noisy contours) into a clean, minimal set of points that accurately represent the original surface, and then use those points to generate a much lighter mesh. ----- ## 💡 Computational Strategy: Reverse-Engineering Terrain Data This approach is based on data simplification and surface reconstruction. ### 1\. 🧹 Data Cleaning and Preparation Before generating a new surface, you must simplify the redundant contour lines. | Step | Goal | Grasshopper Component(s) | Notes | | :--- | :--- | :--- | :--- | | **A. Curve Simplification** | Reduce the number of points defining each contour line without changing the shape much. | **`Simplify Curve`** (Curve Tab) | This removes redundant control points from the polylines, which is crucial if they were generated from NURBS. | | **B. Point Extraction** | Get a single set of 3D points from all the simplified curves. | **`Divide Curve`** (Curve Tab) | Use a large distance or a low count for the division to drastically **reduce the total number of points**. This step directly addresses the "very heavy" file size. | | **C. Point Noise Reduction** | Smooth the points slightly to remove computational noise introduced by the original NURBS derivation. | **`Average`** (Vector Tab) or **`Smooth`** (Mesh/SubD Tab) | This uses neighborhood averaging to clean up the data set. |

That's fantastic! With this geometry, it looks like we could whip up a maze so massive, even Theseus would need a coffee break and a map. It truly is an intriguing shape!

@Walter Patrick Smith 😉

Bryan, you’ve been in the grind for so long, cranking out a GH script every single day for ages. Honestly, wow. Choosing just one is going to feel like a full-on brain puzzle, there are simply too many good ones. Maybe these ones, they seem promising enough to make the others jealous! https://archbga.com/bryangarciaagudelo https://www.instagram.com/bryan_garcia_agudelo/ https://www.patreon.com/bryangarciaagudelo https://www.youtube.com/@bryangarciaagudelo1664/streams

Cool, Using Graph Mapper to bend a simple portico into something way more fun, tweaking heights and shapes until the whole thing comes alive. Thanks Bryan!

NEED VIDEO UP - SINE PAVILION you mean NEW VIDEO UP - SINE PAVILION maybe?