: Use the threshold slider to find the perfect balance between light and dark areas before generating curves.

As architectural and product design workflows shift towards hybrid 2D/3D documentation, the need to extract high-fidelity vector linework from Rhino 3D models has become critical. Standard view capture and simple "Make2D" commands often produce fragmented, overlapping, or overly dense linework. This paper analyzes the algorithmic requirements for a "Vectorize Plugin" aimed at extra quality —specifically focusing on curvature simplification, layer separation, and noise reduction. We propose a framework for evaluating vectorization fidelity and demonstrate how advanced plugins (e.g., Vectorize Pro , RhinoVector , or custom Grasshopper definitions) outperform native tools in maintaining model intent.

: You can find the plugin through the Rhino Package Manager (type PackageManager in the Rhino command line) or download it from the Vectorize GitHub repository.

Basic auto-tracing tools (like those found in free online converters) generally fall short in three areas:

command, don't just hit "OK." Adjusting the settings is the secret to high-fidelity curves: Threshold:

Wait, isn't this native? With Rhino 8, McNeel introduced a native Curve from Bitmap command.

FitCrv : Re-draws polylines into smooth, continuous curves based on a specified tolerance.

A test model of a 200-component mechanical assembly with curved surfaces was processed.

Stop tracing screenshots manually. Let the plugin do the heavy lifting, and reclaim your design time for creativity.