Proposal of an automated code for the conversion of polygonal meshes of organic shapes to CAD NURBS surfaces
DOI:
https://doi.org/10.11606/gtp.v17i2.166353Keywords:
Grasshopper, Algorithm, MeshToNurbs, 3D scanning, Parametric modelingAbstract
The possibility of 3D scanning elements from nature facilitates the development of projects inspired by organic forms. However, 3D scanning usually produces three-dimensional models made up of polygonal meshes, while the standard used in product design is NURBS surfaces, due to their precision. In the given context, this work proposes and analyzes a code alternative for automated conversion of polygonal meshes on NURBS surfaces for use in, but not restricted to, product designs based on organic forms. For this purpose, a conversion algorithm was created using the Grasshopper© plug-in for modeling software Rhinoceros©, which allows visual programming, without the need to use a programming language. The proposed code allows the automated conversion of polygonal meshes of certain formats into NURBS surfaces, with dimensional fidelity control by the user, as well as making the three-dimensional models lighter from a computational point of view.
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