scholarly journals Position and Orientation Tracking System three-dimensional graphical user interface. CRADA final report

1997 ◽  
Author(s):  
R.E. Barry ◽  
G.A. Armstrong ◽  
B.L. Burks
Keyword(s):  
User Interface ◽  
Graphical User Interface ◽  
Tracking System ◽  
Three Dimensional ◽  
Final Report ◽  
Position And Orientation

scholarly journals ShelXle: a Qt graphical user interface forSHELXL

2011 ◽  
Vol 44 (6) ◽  
pp. 1281-1284 ◽  
Author(s):  
Christian B. Hübschle ◽  
George M. Sheldrick ◽  
Birger Dittrich
Keyword(s):  
User Interface ◽  
Graphical User Interface ◽  
Structure Refinement ◽  
Source Code ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Graphical Display ◽  
Acta Cryst ◽  
Strongly Coupled ◽  
Difference Density

ShelXleis a graphical user interface forSHELXL[Sheldrick, G. M. (2008).Acta Cryst.A64, 112–122], currently the most widely used program for small-molecule structure refinement. It combines an editor with syntax highlighting for theSHELXL-associated .ins (input) and .res (output) files with an interactive graphical display for visualization of a three-dimensional structure including the electron density (Fo) and difference density (Fo–Fc) maps. Special features ofShelXleinclude intuitive atom (re-)naming, a strongly coupled editor, structure visualization in various mono and stereo modes, and a novel way of displaying disorder extending over special positions.ShelXleis completely compatible with all features ofSHELXLand is written entirely in C++ using the Qt4 and FFTW libraries. It is available at no cost for Windows, Linux and Mac-OS X and as source code.

A THREE-DIMENSIONAL OIL AND CHEMICAL SPILL MODEL FOR ENVIRONMENTAL IMPACT ASSESSMENT

1995 ◽  
Vol 1995 (1) ◽  
pp. 61-66 ◽  
Author(s):  
Mark Reed ◽  
Henrik Rye
Keyword(s):  
User Interface ◽  
Environmental Impact ◽  
Impact Assessment ◽  
Water Column ◽  
Graphical User Interface ◽  
Marine Mammals ◽  
Oil Spills ◽  
Three Dimensional ◽  
Comprehensive Model ◽  
Simulation Results

ABSTRACT A comprehensive model of the dynamic, three-dimensional physical fates of contaminants in the marine environment has been developed. For oil spills, dissolution of aromatics from surface slicks and entrained oil droplets are the source of potential effects for biota in the water column. Oil on the surface and along shorelines provides the basis for evaluation of impacts on birds, marine mammals, and recreational activities. A graphical user interface couples the model to a variety of environmental databases and tools to facilitate specific applications and viewing of simulation results.

Blade Tip Measurement Advanced Visualization Using a Three Dimensional Representation

2011 ◽  
Author(s):  
Michae¨l A. Hafner ◽  
Thomas A. Holst ◽  
Scott A. Billington
Keyword(s):  
User Interface ◽  
Graphical User Interface ◽  
Gas Turbines ◽  
Three Dimensional ◽  
Tip Clearance ◽  
Shape Fitting ◽  
Multiple Sensors ◽  
Three Dimensional Representation ◽  
The Right ◽  
3D Graphical User Interface

A microwave tip clearance sensor capable of measuring the hottest stages of industrial and aero gas turbines has been developed. This new microwave sensor has been integrated into a commercial package for online real-time monitoring of machine data. However, data analysis of large numbers of tip clearance probes makes standard industry graphic techniques cluttered. A method has been developed to reduce this data and visualize it in order to provide intuitive representations of the data from which a user can quickly draw the right conclusions about machine behavior. The main motivation for the development of a 3D graphical user interface is the density of information that can be shown to the user at one time. Tip clearance measurement is very data-rich, as every individual blade for each sensor mounted around the engine case is available. The result is that it may be difficult to find slight changes within hundreds of clearance trends. Only specialists with long experience in tip clearance measurement can synthesize all the data quickly enough using standard 2D plots. The 3D graphical user interface brings all of this data together to calculate the aggregated blade pattern, rotor positioning, and estimated case shape. All of these measurements are available to the user in a single visualization. Colors indicating alarm or clearance scale quickly draw attention to the most important data such as the minimum clearance point around the engine case where a rub may be likely to occur. This method is based about a case shape fitting algorithm that combines data from multiple sensors to make a case shape estimate based on fitting of a non-uniform rational B-spline (NURB). The scaling is also distorted in order to accentuate the graphics in a way that provides an intuitive understanding of the machine state. The method of applying this data accentuation is important so as to not be misleading. This innovative navigation interface presented in this paper capitalizes on modern advances in computer graphics to aid engineers and operators in understanding, access, monitoring, and analysis of tip clearance and air-gap measurements.

Consideration of Uncertainty in Virtual Product Design

2011 ◽  
Author(s):  
Lucia Mosch ◽  
Andre´ Sprenger ◽  
Reiner Anderl
Keyword(s):  
Information System ◽  
User Interface ◽  
Product Design ◽  
Graphical User Interface ◽  
Three Dimensional ◽  
Parametric Models ◽  
Cad Systems ◽  
Cad System ◽  
Technical Products ◽  
Virtual Product

In design, manufacturing and usage of technical products uncertainty arises according to process properties and results in influence of products properties. In current CAD-systems, where products and product properties are presented, uncertainty is not considered yet. In this paper, we propose a new enhanced concept for the visualization of information about uncertainty in CAD-systems. The presentation of uncertainty is realized on basis of three-dimensional parametric models in a CAD-system and an implemented uncertainty-browser. The uncertainty-browser acts as a graphical user interface to categorize information about uncertainty, the processes and product properties. Beyond that, information about uncertainty will be visualized as annotations referring to chosen properties. Being aware of information about uncertainty during product design, the engineer is able to improve his product. The representation of uncertainty is based on an ontology based information system for supporting the collection and categorization of information about processes, products and uncertainty.

scholarly journals A passive, camera-based head-tracking system for real-time, three-dimensional estimation of head position and orientation in rodents

2019 ◽  
Vol 122 (6) ◽  
pp. 2220-2242 ◽  
Author(s):  
Walter Vanzella ◽  
Natalia Grion ◽  
Daniele Bertolini ◽  
Andrea Perissinotto ◽  
Marco Gigante ◽  
...  
Keyword(s):  
Spatial Scales ◽  
Tracking System ◽  
3D Structure ◽  
Three Dimensional ◽  
Head Position ◽  
White Background ◽  
Head Tracking ◽  
Sensory Stimuli ◽  
Alternative Approach ◽  
Position And Orientation

Tracking head position and orientation in small mammals is crucial for many applications in the field of behavioral neurophysiology, from the study of spatial navigation to the investigation of active sensing and perceptual representations. Many approaches to head tracking exist, but most of them only estimate the 2D coordinates of the head over the plane where the animal navigates. Full reconstruction of the pose of the head in 3D is much more more challenging and has been achieved only in handful of studies, which employed headsets made of multiple LEDs or inertial units. However, these assemblies are rather bulky and need to be powered to operate, which prevents their application in wireless experiments and in the small enclosures often used in perceptual studies. Here we propose an alternative approach, based on passively imaging a lightweight, compact, 3D structure, painted with a pattern of black dots over a white background. By applying a cascade of feature extraction algorithms that progressively refine the detection of the dots and reconstruct their geometry, we developed a tracking method that is highly precise and accurate, as assessed through a battery of validation measurements. We show that this method can be used to study how a rat samples sensory stimuli during a perceptual discrimination task and how a hippocampal place cell represents head position over extremely small spatial scales. Given its minimal encumbrance and wireless nature, our method could be ideal for high-throughput applications, where tens of animals need to be simultaneously and continuously tracked. NEW & NOTEWORTHY Head tracking is crucial in many behavioral neurophysiology studies. Yet reconstruction of the head’s pose in 3D is challenging and typically requires implanting bulky, electrically powered headsets that prevent wireless experiments and are hard to employ in operant boxes. Here we propose an alternative approach, based on passively imaging a compact, 3D dot pattern that, once implanted over the head of a rodent, allows estimating the pose of its head with high precision and accuracy.

Development of MATLAB Graphical User Interface for Teaching Statics

2005 ◽  
Author(s):  
Nidal Al-Masoud
Keyword(s):  
User Interface ◽  
Graphical User Interface ◽  
Teaching And Learning ◽  
Input Data ◽  
Three Dimensional ◽  
Additional Insight ◽  
Interactive Approach ◽  
Engineering Mechanics ◽  
User Friendly

In this paper a Graphical User Interface (GUI) platform to supplement teaching and learning in Engineering Mechanics — Statics course is developed. The package encompasses several interrelated modules of the concepts introduced in a typical Statics class. The GUI provides a user-friendly interactive approach to solving problems and displaying the results both numerically and graphically in two- and three-dimensional spaces. In addition to visualization, GUI approach allows users to modify input data and observe the effect on the solution, thus providing students with additional insight to predict the behavior of structures under different loading scenarios.

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