166 citations · 359 across the 14 of their papers we have counts for
15 papers
Constrained Delaunay Tetrahedrization: A Robust and Practical Approach
Lorenzo Diazzi, Daniele Panozzo, Amir Vaxman +1
We present a numerically robust algorithm for computing the constrained Delaunay tetrahedrization (CDT) of a piecewise-linear complex, which has a 100% success rate on the 4408 val…
Interactive and Robust Mesh Booleans
Gianmarco Cherchi, Fabio Pellacini, Marco Attene +1
Boolean operations are among the most used paradigms to create and edit digital shapes. Despite being conceptually simple, the computation of mesh Booleans is notoriously challengi…
Convex polyhedral meshing for robust solid modeling
Lorenzo Diazzi, Marco Attene
We introduce a new technique to create a mesh of convex polyhedra representing the interior volume of a triangulated input surface. Our approach is particularly tolerant to defects…
Indirect predicates for geometric constructions
Marco Attene
Geometric predicates are a basic ingredient to implement a vast range of algorithms in computational geometry. Modern implementations employ floating point filtering techniques to…
Shapes In A Box -- Disassembling 3D objects for efficient packing and fabrication
Marco Attene
Modern 3D printing technologies and the upcoming mass-customization paradigm call for efficient methods to produce and distribute arbitrarily-shaped 3D objects. This paper introduc…
A Large Scale Benchmark and an Inclusion-Based Algorithm for Continuous Collision Detection
Bolun Wang, Zachary Ferguson, Teseo Schneider +3
We introduce a large scale benchmark for continuous collision detection (CCD) algorithms, composed of queries manually constructed to highlight challenging degenerate cases and aut…
Deterministic Linear Time Constrained Triangulation using Simplified Earcut
Marco Livesu, Gianmarco Cherchi, Riccardo Scateni +1
Triangulation algorithms that conform to a set of non-intersecting input segments typically proceed in an incremental fashion, by inserting points first, and then segments. Inserti…
Parametric shape optimization for combined additive-subtractive manufacturing
Christian Altenhofen, Marco Attene, Oliver Barrowclough +6
In the industrial practice, additive manufacturing processes are often followed by post-processing operations such as subtractive machining, milling, etc. to achieve the desired su…
Benchmark of Polygon Quality Metrics for Polytopal Element Methods
M. Attene, S. Biasotti, S. Bertoluzza +6
Polytopal Element Methods (PEM) allow to solve differential equations on general polygonal and polyhedral grids, potentially offering great flexibility to mesh generation algorithm…
Surface2Volume: Surface Segmentation Conforming Assemblable Volumetric Partition
Chrystiano Araújo, Daniela Cabiddu, Marco Attene +3
Users frequently seek to fabricate objects whose outer surfaces consist of regions with different surface attributes, such as color or material. Manufacturing such objects in a sin…
Hatching for 3D prints: line-based halftoning for dual extrusion fused deposition modeling
Tim Kuipers, Willemijn Elkhuizen, Jouke Verlinden +1
This work presents a halftoning technique to manufacture 3D objects with the appearance of continuous grayscale imagery for Fused Deposition Modeling (FDM) printers. While droplet-…
From 3D Models to 3D Prints: an Overview of the Processing Pipeline
Marco Livesu, Stefano Ellero, Jonás Martìnez +2
Due to the wide diffusion of 3D printing technologies, geometric algorithms for Additive Manufacturing are being invented at an impressive speed. Each single step, in particular al…
Epsilon-shapes: characterizing, detecting and thickening thin features in geometric models
Daniela Cabiddu, Marco Attene
We focus on the analysis of planar shapes and solid objects having thin features and propose a new mathematical model to characterize them. Based on our model, that we call an epsi…
As-exact-as-possible repair of unprintable STL files
Marco Attene
Purpose: The class of models that can be represented by STL files is larger than the class of models that can be printed using additive manufacturing technologies. Stated different…
The CHRONIOUS Ontology-Driven Search Tool: Enabling Access to Focused and Up-to-Date Healthcare Literature
Stephan Kiefer, Jochen Rauch, Riccardo Albertoni +7
This paper presents an advanced search engine prototype for bibliography retrieval developed within the CHRONIOUS European IP project of the seventh Framework Program (FP7). This s…