Listar INIT_Articles por autoría "d060dfcc-ee38-4568-a19b-b6417afe0c85"

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    • openAccess   A fast approach for perceptually-based fitting strokes into elliptical arcs 

      Company, Pedro; Plumed, Raquel; Varley, Peter Ashley Clifford Springer (2015-04-30)
      Fitting elliptical arcs to strokes of an input sketch is discussed. We describe an approach which automatically combines existing algorithms to get a balance of speed and precision. For measuring precision, we introduce ...

    • openAccess   A New Approach to Detect Hand-Drawn Dashed Lines in Engineering Sketches 

      Plumed, Raquel; Contero, Manuel; Naya, Ferran; Company, Pedro MDPI (2024-05-09)
      Sketched drawings sometimes include non-solid lines drawn as sets of consecutive strokes. They represent dashed lines, which are useful for various purposes. Recognizing such dashed lines while parsing drawings is reasonably ...

    • openAccess   A survey on 3D cad model quality assurance and testing tools 

      González-Lluch, Carmen; Company, Pedro; Contero, Manuel; Dorribo Camba, Jorge; Plumed, Raquel Elsevier (2017-02)
      A new taxonomy of issues related to CAD model quality is presented, which distinguishes between explicit and procedural models. For each type of model, morphologic, syntactic, and semantic errors are characterized. The ...

    • openAccess   Algorithmic Perception of Vertices in Sketched Drawings of Polyhedral Shapes 

      Company, Pedro; Plumed, Raquel; Varley, Peter; Dorribo Camba, Jorge Association for Computing Machinery (ACM) (2019-09)
      In this article, visual perception principles were used to build an artificial perception model aimed at developing an algorithm for detecting junctions in line drawings of polyhedral objects that are vectorized from ...

    • openAccess   Approach for developing coordinated rubrics to convey quality criteria in MCAD training 

      Company, Pedro; Contero, Manuel; Otey, Jeffrey; Plumed, Raquel Elsevier (2015-06)
      This paper describes an approach to convey quality-oriented strategies to CAD trainees by embedding quality criteria into rubrics so as to force CAD trainees to understand them early in their instruction. To this end, the ...

    • openAccess   Extracting datums to reconstruct CSG models from 2D engineering sketches of polyhedral shapes 

      Plumed, Raquel; Varley, Peter; Company, Pedro; Martin, Ralph Elsevier (2022)
      Our goal is to automatically generate CAD 3D models from 2D sketches as part of a design chain where models should be procedural, containing features arranged in a model tree and linked to suitable datums. Current procedural ...

    • openAccess   Perimeter detection in sketched drawings of polyhedral shapes 

      Company, Pedro; Varley, Peter Ashley Clifford; Plumed, Raquel The Eurographics Association (2017)
      This paper describes a new “envelope” approach for detecting object perimeters in line-drawings vectorised from sketches of polyhedral objects. Existing approaches for extracting contours from digital images are unsuitable ...

    • openAccess   Training Engineers in the Use of Constraints to Create Quality 2D Pro les for 3D Models 

      Plumed, Raquel; González-Lluch, Carmen; Otey, Jeffrey; Pérez-Belis, Victoria CAD Solutions (2021)
      Historically, different strategies utilized in engineering and technical graphics reflect growing concern about improvement in CAD instruction and the introduction of product quality data in curricular activities. Our ...