Visualizing Timed, Hierarchical Code Structures in AscoGraph

Grigore Burloiu 1, 2, * Arshia Cont 3, 2
* Auteur correspondant
2 MuTant - Synchronous Realtime Processing and Programming of Music Signals
Inria Paris-Rocquencourt, UPMC - Université Pierre et Marie Curie - Paris 6, IRCAM, CNRS - Centre National de la Recherche Scientifique
3 Repmus - Représentations musicales
STMS - Sciences et Technologies de la Musique et du Son
Abstract : Antescofo is a state-of-the-art software package for mixed music authorship and performance. In this paper, we apply an information visualisation perspective to a set of revisions in the timeline-based representation of action items in AscoGraph, the dedicated user interface to Antescofo. Our contribution is twofold: (a) a design study of the proposed new model, and (b) a technical, algorithmic component. In the former, we show how our model relates to principles of information coherence and clarity, facility of seeking and navigation, hierarchical distinction and explicit linking. In the latter, we frame the problem of arranging action rectangles in a 2D space as a strip packing problem, with the additional constraint that the (horizontal) time coordinates of each block are fixed. We introduce three algorithms of increasing complexity for automatic arrangement, estimate their packing performance and analyse their strengths and weaknesses. We evaluate the systemic improvements achieved and their applicability for other time-based datasets, while noting the limitations of the model and resulting directions for future research.
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Communication dans un congrès
International Conference on Information Visualisation, Jul 2015, Barcelona, Spain. 2015, 〈http://www.graphicslink.co.uk/IV2015/〉
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Grigore Burloiu, Arshia Cont. Visualizing Timed, Hierarchical Code Structures in AscoGraph. International Conference on Information Visualisation, Jul 2015, Barcelona, Spain. 2015, 〈http://www.graphicslink.co.uk/IV2015/〉. 〈hal-01155618〉

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