A triangulation algorithm from arbitrary shaped multiple planar contours
ACM Transactions on Graphics (TOG)
Computational geometry and computer graphics in C++
Computational geometry and computer graphics in C++
Automatic reconstruction of surfaces and scalar fields from 3D scans
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
An assessment of data formats for layered manufacturing
Advances in Engineering Software
A data front-end for layered manufacturing
SCG '97 Proceedings of the thirteenth annual symposium on Computational geometry
A new Voronoi-based surface reconstruction algorithm
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Development of a new rapid prototyping interface
Computers in Industry - Special issue on rapid prototyping and manufacturing technologies
Modelling and optimisation of rapid prototyping
Computers in Industry
Volume Visualization in Medicine: Techniques and Applications
Focus on Scientific Visualization
An analysis and evaluation of fitness for shoe lasts and human feet
Computers in Industry
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This paper proposes a contour-processing system to enhance the capability and efficiency of fabricating complex objects in layered manufacturing (LM). It consists of a tolerant slicing algorithm and a topological hierarchy-sorting algorithm. The tolerant slicing algorithm aims to overcome the constraints of computer memory and the computation instability commonly irherent in conventional slicing methodologies, while the topological hierarchy-sorting algorithm constructs the topological relationship of complex slice contours. The tolerant slicing algorithm adopts a simple pick-and-drop approach to minimise the memory usage. It extracts one facet at a time for slicing. Hence, complex and large STL models of virtually unlimited file size can be sliced effectively. The algorithm is relatively fault tolerant in that inconsistent contours due to defects of the STL file may be automatically repaired. The topological hierarchy-sorting algorithm constructs the hierarchy relationship of complex slice contours, with which virtual prototyping and surface reconstruction algorithms can be conveniently applied. In particular, slice contours with established hierarchy relationship facilitate collision detection in multi-material assemblies, as well as the optimisation of laser/binder path in LM by avoiding redundant back-and-forth movement.