Current affordable architectures for high-speed display of shaded 3D objects operate orders of magnitude too slowly. Recent advances in floating point chip technology have outpaced polygon fill time, making the memory...
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Experimental software tools are described for implementing auto-updating, a method of transporting information between a document and multiple databases. Such information may include technical data, formatting markups...
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The problem of positioning and manipulating three dimensional articulated figures is often handled by ad hoc techniques which are cumbersome to use. In this paper, we describe a system which provides a consistent and ...
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This paper discusses work occurring in the hypercube simulation laboratory and visualization schemes for concurrent simulation. The principle contribution of this work is that of a cost effective technical approach to...
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I treat three related subjects: virtual-worlds research-the construction of real-time 3-D illusions by computergraphics;some observations about interfaces to virtual worlds;and the coming application of virtual-world...
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ISBN:
(纸本)0201142376
I treat three related subjects: virtual-worlds research-the construction of real-time 3-D illusions by computergraphics;some observations about interfaces to virtual worlds;and the coming application of virtual-worlds techniques to the enhancement of scientific computing. We need to design generalized interfaces for visualizing, exploring, and steering scientific computations. Our interfaces must be direct-manipulation, not command-string;interactive, not batch;3-D, not 2-D;multi-sensory, not just visual. We need generalized research results for 3-D interactive interfaces. More is known than gets reported, because of a reluctance to share "unproven" results. I propose a shells-of-certainty model for such knowledge.
This paper describes a method for extracting arbitrarily oriented text in documents containing both text and graphics. The technique presented is inspired by the tracking algorithms frequently found in raster to vecto...
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Automatic text analysis methods are available that can assign identifying elements, or terms, to written documents, based on statistical and other formal criteria. Attempts to refine the established single-Term indexi...
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User Interface Management Systems have provided support for most user interface design personnel with the exception of dialogue evaluators. Potential support that a UIMS can provide to evaluators of user interfaces ge...
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A graphics environment for essentially real-time interactive visualization of computational fluid mechanics is described. A researcher can interactively examine fluid data on a frame buffer with animated flow visualiz...
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ISBN:
(纸本)081860882X
A graphics environment for essentially real-time interactive visualization of computational fluid mechanics is described. A researcher can interactively examine fluid data on a frame buffer with animated flow visualization diagnostics that mimic those in the experimental laboratory. This provides an effective and interactive way to analyze the underlying physical mechanisms and to compare results with laboratory experiment. The system is implemented on a data parallel supercomputer attached to a frame buffer. The fluid diagnostic tools include display of moving color contours for scalar fields, smoke/dye injection of passive particles to identify coherent flow structures, and bubble wire tracers for velocity profiles. The system is demonstrated by analyzing data generated from a numerical simulation of laminar and turbulent flow over a backwards-facing step. Input parameters are menu-driven, and images are updated at nine frame updates/s.
Some very impressive results have been obtained in the past few years in plants and trees image synthesis. Some algorithms are largely based on the irregularity and fuzziness of the objects, and use fractals, graftals...
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