Search results for " Animation"

Bright Hot Impacts by Erupted Fragments Falling Back on the Sun: Magnetic Channelling

2016

Dense plasma fragments were observed to fall back on the solar surface by the Solar Dynamics Observatory after an eruption on 7 June 2011, producing strong EUV brightenings. Previous studies investigated impacts in regions of weak magnetic field. Here we model the $\sim~300$ km/s impact of fragments channelled by the magnetic field close to active regions. In the observations, the magnetic channel brightens before the fragment impact. We use a 3D-MHD model of spherical blobs downfalling in a magnetized atmosphere. The blob parameters are constrained from the observation. We run numerical simulations with different ambient density and magnetic field intensity. We compare the model emission i…

Aprendiendo Vibraciones Mec´anicas con Wolfram Mathematica

2015

[EN] Mechanical vibrations as subject can be found within many Engineering and Science Degrees. To achieve that the students understand the mathematics and its physical interpretation is the objective we should get as docents. In this paper we describe how to create a simple graphical model of a single degree of freedom vibrating system allowing us to visualize concepts like above concepts damping, resonance or forced vibrations. For that, we use the popular symbolic software Wolfram Mathematica with which, without an excessive programming complexity, we can obtain a very satisfactory visual model capable to move itself, controlled by parameters. In addition, the model incorporates the curv…

Integrating miniMin-HSP agents in a dynamic simulation framework

2004

In this paper, we describe the framework created for implementing AI-based animations for artificial actors in the context of IVE (Intelligent Virtual Environments). The minMin-HSP (Heuristic Search Planner) planner presented in [12] has been updated to deal with 3D dynamic simulation environments, using the sensory/actuator system fully implemented in UnrealTM and presented in [10]. Here, we show how we have integrated these systems to handle the necessary balance between the reactive and deliberative skills for 3D Intelligent Virtual Agents (3DIVAs). We have carried out experiments in a multi-agent 3D blocks world, where 3DIVAs will have to interleave sensing, planning and execution to be…

Don’t miss your train! Just follow the computer screen animation: Comprehension of animated public information graphics

2014

Computer graphic animated information displays have the potential to communicate public information in situations where normal announcement types are ineffective. This study used eye tracking techniques to analyze comprehension mechanism of event-related information on railway traffic disruptions presented via different graphic formats presented on computer screen. 86 participants were asked to understand series of traffic disruption messages delivered via four purely visual formats: Static simultaneous, Static sequential, Animated simultaneous and Animated sequential. Across these four conditions, and contrary to the most common materials used in the studies on animation comprehension, the…

The Mathematical Table of the Palazzina Cinese in Palermo. Animation and Virtual Reality Techniques for an Edutainment Project

2023

The Palazzina Cinese of Palermo was built on a project by Venanzio Marvuglia in 1799 on behalf of Ferdinand IV of Borbone, when the royal family, fleeing from Naples following the establishment of the Parthenopean Republic, moved to Sicily. The building, known as “Chinese” due to its style, is full of particular architectural and decorative solutions. An element of particular interest is theMathematical Table, designed to avoid any contact between the living room and the kitchen below, isolating it from smells and servants. Thanks to a complex system of winches and pulleys, in fact, the dishes could be served by letting the central portion of the table and small circular areas fall into the…

Modelling and animation of theatrical Greek masks in an authoring system

2007

Elevation Cable Modeling for Interactive Simulation of Cranes

2008

In this paper, the way to simulate hoisting cables in real time is addressed. We overcome instability in such simulation by considering a two-layered model: a model for the dynamics of a cable passing through a set of pulleys and an oscillation model based on the classical one-dimensional wave equation. The first layer considers the interaction between the cable and pulleys with the elevation equipment, while the second layer simulates cable oscillation. Numerical instability is avoided by suspending the oscillation layer when required. Due to the system properties, this can be carried out in such a way that does not cause significant loss in the system quality. It considers the oscillation…

Demonstration as an aid to learning from animation

2017

Communication donnée le 1er septembre 2017 lors du symposium : Learning with dynamic media in formal and informal contexts (session K 26); International audience; The effectiveness of requiring learners to generate operational demonstrations while viewing an animation of a working mechanism was explored as a means of improving their animation processing. We assumed that the demonstration requirement would enhance learner extraction of key dynamic information needed for building a high quality mental model. It is expected that compared with note-taking controls, those in the demonstration group will give more attention to the spatiotemporal relationships amongst the mechanism’s components. T…

A Saturation Avoidance Technique for Peer-to-Peer Distributed Virtual Environments

2007

This paper presents a multi-agent framework oriented to animate groups of synthetic humans that properly balance task-oriented and social behaviors. We mainly focus on the social model designed for BDI-agents to display socially acceptable decisions. This model is based on an auction mechanism used to coordinate the group activities derived from the character's roles. The model also introduces reciprocity relations between the members of a group and allows the agents to include social tasks to produce realistic behavioral animations. Furthermore, a conversational library provides the set of plans to manage social interactions and to animate from simple chats to more complex negotiations. Th…

Animated Representations. Multimedia Techniques for Storytelling

2023

The paper presents the results of two case studies that use multimedia language for the knowledge, appreciation and communication of works of art of different epochs, nature and location and that, through the tools of Representation, make use of digital methods of animation and visualisation. The final results concern the creation of multimedia products designed to narrate a conceptual path, through a reasoned animation of raster and vectorial products. Together with the necessary technical and IT skills, it is essential to reaffirm the role of representation, which is central to image processing, recognition of graphic analogies, study of proportions, knowledge of the laws of visual percep…