Surface detection and modeling of an arbitrary point cloud from 3D sketching. Issue 2 (4th March 2018)

• Record Type: Journal Article
• Authors: Schwartz, Ariel; Schneor, Ronit; Molcho, Gila; Weiss Cohen, Miri
• Is Part Of: Computer-aided design and applications. Volume 15:Issue 2(2018)
• Page Start: 227
• Page End: 237
• Publication Date: 2018-03-04
• Subjects: 3D sketching -- point cloud -- 3D surface modeling; Computer-aided design -- Congresses; Computer-aided design -- Periodicals; Engineering design -- Data processing -- Congresses; Engineering design -- Periodicals; 620.00420285
• DOI: 10.1080/16864360.2017.1375673
• Languages: English
• ISSNs: 1686-4360

Abstract

ABSTRACT: This work describes a method for converting unorganized point cloud data from 3D sketching into an explicit 3D model, contributing to closing the knowledge gap in transferring 3D sketches from a conceptual design to the detailed design. The main challenge in the work is processing an unorganized point cloud where the points fill the volume of the object and do not only lie on the surface, as they would in most scanned data. The scope of the work is a single object, genus 0. The 3D model is constructed by building a loft feature through curves generated by slicing the point cloud. Firstly, the point cloud is sliced and points worked onto slicing planes; secondly, the external points that describe the contour of each slice are isolated using alpha shapes; lastly, smooth curves are created through the external points, and a loft is generated. GRAPHICAL ABSTRACT: