903 resultados para graphical interface
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Almost everyone sketches. People use sketches day in and day out in many different and heterogeneous fields, to share their thoughts and clarify ambiguous interpretations, for example. The media used to sketch varies from analog tools like flipcharts to digital tools like smartboards. Whereas analog tools are usually affected by insufficient editing capabilities like cut/copy/paste, digital tools greatly support these scenarios. Digital tools can be grouped into informal and formal tools. Informal tools can be understood as simple drawing environments, whereas formal tools offer sophisticated support to create, optimize and validate diagrams of a certain application domain. Most digital formal tools force users to stick to a concrete syntax and editing workflow, limiting the user’s creativity. For that reason, a lot of people first sketch their ideas using the flexibility of analog or digital informal tools. Subsequently, the sketch is "portrayed" in an appropriate digital formal tool. This work presents Scribble, a highly configurable and extensible sketching framework which allows to dynamically inject sketching features into existing graphical diagram editors, based on Eclipse GEF. This allows to combine the flexibility of informal tools with the power of formal tools without any effort. No additional code is required to augment a GEF editor with sophisticated sketching features. Scribble recognizes drawn elements as well as handwritten text and automatically generates the corresponding domain elements. A local training data library is created dynamically by incrementally learning shapes, drawn by the user. Training data can be shared with others using the WebScribble web application which has been created as part of this work.
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This thesis defines Pi, a parallel architecture interface that separates model and machine issues, allowing them to be addressed independently. This provides greater flexibility for both the model and machine builder. Pi addresses a set of common parallel model requirements including low latency communication, fast task switching, low cost synchronization, efficient storage management, the ability to exploit locality, and efficient support for sequential code. Since Pi provides generic parallel operations, it can efficiently support many parallel programming models including hybrids of existing models. Pi also forms a basis of comparison for architectural components.
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This thesis presents the development of hardware, theory, and experimental methods to enable a robotic manipulator arm to interact with soils and estimate soil properties from interaction forces. Unlike the majority of robotic systems interacting with soil, our objective is parameter estimation, not excavation. To this end, we design our manipulator with a flat plate for easy modeling of interactions. By using a flat plate, we take advantage of the wealth of research on the similar problem of earth pressure on retaining walls. There are a number of existing earth pressure models. These models typically provide estimates of force which are in uncertain relation to the true force. A recent technique, known as numerical limit analysis, provides upper and lower bounds on the true force. Predictions from the numerical limit analysis technique are shown to be in good agreement with other accepted models. Experimental methods for plate insertion, soil-tool interface friction estimation, and control of applied forces on the soil are presented. In addition, a novel graphical technique for inverting the soil models is developed, which is an improvement over standard nonlinear optimization. This graphical technique utilizes the uncertainties associated with each set of force measurements to obtain all possible parameters which could have produced the measured forces. The system is tested on three cohesionless soils, two in a loose state and one in a loose and dense state. The results are compared with friction angles obtained from direct shear tests. The results highlight a number of key points. Common assumptions are made in soil modeling. Most notably, the Mohr-Coulomb failure law and perfectly plastic behavior. In the direct shear tests, a marked dependence of friction angle on the normal stress at low stresses is found. This has ramifications for any study of friction done at low stresses. In addition, gradual failures are often observed for vertical tools and tools inclined away from the direction of motion. After accounting for the change in friction angle at low stresses, the results show good agreement with the direct shear values.
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We present an immersed interface method for the incompressible Navier Stokes equations capable of handling rigid immersed boundaries. The immersed boundary is represented by a set of Lagrangian control points. In order to guarantee that the no-slip condition on the boundary is satisfied, singular forces are applied on the fluid at the immersed boundary. The forces are related to the jumps in pressure and the jumps in the derivatives of both pressure and velocity, and are interpolated using cubic splines. The strength of singular forces is determined by solving a small system of equations at each time step. The Navier-Stokes equations are discretized on a staggered Cartesian grid by a second order accurate projection method for pressure and velocity.
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This paper presents a Graphical User Interface, developed with python and the graphic library wxpython, to GRASS GIS. This GUI allows to access several modules with a graphic interface written in Spanish. Its main purpouse is to be a teaching tool, that is the reason way it only allows to access several basic put crucial moludes. It also allows user to organize the elements presented to stress the aspects to be resalted in a particular working sesion with the program
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A long development time is needed from the design to the implementation of an AUV. During the first steps, simulation plays an important role, since it allows for the development of preliminary versions of the control system to be integrated. Once the robot is ready, the control systems are implemented, tuned and tested. The use of a real-time simulator can help closing the gap between off-line simulation and real testing using the already implemented robot. When properly interfaced with the robot hardware, a real-time graphical simulation with a "hardware in the loop" configuration, can allow for the testing of the implemented control system running in the actual robot hardware. Hence, the development time is drastically reduced. These paper overviews the field of graphical simulators used for AUV development proposing a classification. It also presents NEPTUNE, a multi-vehicle, real-time, graphical simulator based on OpenGL that allows hardware in the loop simulations
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A quick word about abstract How a class interfaces Making Pets The Deadly Diamond of Death Interfaces (not interfaces)
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El objetivo de este trabajo es el diseño de una interface entre un programa de cálculo simbólico y uno de CAD y su aplicación al caso de modelado geométrico y modelado de caras. El libro, se divide en tres capítulos: curvas en 2D, curvas en 3D y superficies. Dado que existen programas de cálculo simbólico que representan sus curvas, resultará favorable captar el fichero de puntos producido por dicho programa y, con los tratamientos convenientes, transformarlo en una lista susceptible de ser leída desde un programa CAD, los puntos trasvasados serán los vértices de una polilínea que posteriormente adaptada representará la curva en cuestión. Y, siguiendo un proceso análogo, también será posible obtener el fichero de puntos de una superficie. Para desarrollar esta aplicación, se ha elegido como programa de cálculo simbólico Maple V2, y como programa CAD, AUTOCAD V12.
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Nueve paquetes de actividades para Windows para ciclo superior de Primaria. Se trabajan medidas de capacidad y longitud y masa, fracciones, enteros y porcentajes entre otros contenidos. Las actividades se basan en ejercicios visuales y problemas. Permite instalar el programa o hacer una copia en un disquete.
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Conocer qué desafíos se fijan los creadores de software educativo multimedia, qué tipo de comunicación debemos establecer entre el usuario y el ordenador para que sus exploraciones desemboquen en situaciones de aprendizaje y cómo favorecer la realización de software adecuado a la naturaleza del proceso educativo en las cuales las características de accesibilidad, transparencia, atractivo, claridad de objetivos educativos y la realización de actividades, contribuyen a una mayor interactividad del hombre con la máquina. Se utilizó la investigación por compilación, con compilación documental, por entrevista y por encuesta, y la investigación documental, utilizando fuentes primarias y secundarias de información para esbozar la evolución, tendencias y orientaciones de diseño de interfaces. La investigación empírica se divide en dos estudios, el primero abordó la cuestión del nivel de conocimientos y la utilización del software educativo por parte de los maestros de Educación infantil y profesores de primaria y, el segundo, tenía como objetivo confeccionar una lista de orientaciones para el diseño de interfaces, a partir de aspectos estudiados en el marco teórico, y a partir de los cuales se diseñó una tabla de evaluación de interfaces de software educativo multimedia. El estudio se llevó a cabo con maestros y profesores de primaria que asistían al curso complementario de formación en la Escuela Superior de Educación de Fafe durante los años 1999-2000, 2000-2001, 2001-2002. Se elaboró una tabla de evaluación de interfaces destinado a los realizadores de software educativo que sirve para controlar la calidad del interfaz. Los docentes a pesar de conocer algún que otro software educativo disponible en el mercado, su uso en el contexto educativo es poco frecuente. Los profesores que estuvieron ligados a proyectos con prácticas en ordenador o que realizaron acciones de formación en Nuevas Tecnologías conocen y recurren más al software educativo.
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Esta investigación pretende alcanzar dos objetivos. Cubrir el vacío existente en los estudios de las funciones comunicativas del habla de profesores, en este caso de inglés como Lengua Extranjera (ILE) destinado a nivel preescolar, y configurar una interfaz discurso-gramática de las funciones reguladoras del lenguaje.. En primer lugar, para lograr un análisis discursivo-semántico, en este trabajo se diseña la Red Sistémica de Funciones Reguladoras, RSFR, una herramienta que resume las diferentes opciones discursivo-semánticas de los contextos de las funciones reguladoras. A continuación, se analizan los datos en el estrato léxico-gramatical para facilitar conclusiones sobre la relación función-realización formal. Por último se exponen las similitudes y diferencias en la producción lingüística de las funciones reguladoras entre profesores nativos y no nativos.. Las aportaciones más destacadas de esta investigación son cuatro: hacer posible un estudio sistemático del significado mediante el diseño de una herramienta; la propuesta de una taxonomía de funciones reguladoras; el análisis de la dependencia entre las funciones reguladoras, y sus realizaciones lingüísticas; y las diferencias encontradas en la comparación del discurso del profesor nativo y no-nativo..
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Se analiza la conveniencia de usar textos simplificados o en su formato original para propositos pedagógicos dentro de la enseñanza de la segunda lengua. El autor considera que ambas clases de textos (simplificados u originales) pueden formar el nivel intermedio de aprendizaje de lenguas extranjeras.
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Resumen basado en el del autor
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The proposal presented in this thesis is to provide designers of knowledge based supervisory systems of dynamic systems with a framework to facilitate their tasks avoiding interface problems among tools, data flow and management. The approach is thought to be useful to both control and process engineers in assisting their tasks. The use of AI technologies to diagnose and perform control loops and, of course, assist process supervisory tasks such as fault detection and diagnose, are in the scope of this work. Special effort has been put in integration of tools for assisting expert supervisory systems design. With this aim the experience of Computer Aided Control Systems Design (CACSD) frameworks have been analysed and used to design a Computer Aided Supervisory Systems (CASSD) framework. In this sense, some basic facilities are required to be available in this proposed framework: ·